An unbranched glucan in starch.
A highly branched glucan in starch.
Any of a group of polysaccharides of the general formula (C6-H10-O5)n, composed of a long-chain polymer of glucose in the form of amylose and amylopectin. It is the chief storage form of energy reserve (carbohydrates) in plants.
An enzyme that catalyzes the transfer of glucose from ADPglucose to glucose-containing polysaccharides in 1,4-alpha-linkages. EC 2.4.1.21.
In glycogen or amylopectin synthesis, the enzyme that catalyzes the transfer of a segment of a 1,4-alpha-glucan chain to a primary hydroxy group in a similar glucan chain. EC 2.4.1.18.
1,4-alpha-D-Glucan-1,4-alpha-D-glucan 4-alpha-D-glucosyltransferase/dextrin 6 alpha-D-glucanohydrolase. An enzyme system having both 4-alpha-glucanotransferase (EC 2.4.1.25) and amylo-1,6-glucosidase (EC 3.2.1.33) activities. As a transferase it transfers a segment of a 1,4-alpha-D-glucan to a new 4-position in an acceptor, which may be glucose or another 1,4-alpha-D-glucan. As a glucosidase it catalyzes the endohydrolysis of 1,6-alpha-D-glucoside linkages at points of branching in chains of 1,4-linked alpha-D-glucose residues. Amylo-1,6-glucosidase activity is deficient in glycogen storage disease type III.
Cyclic GLUCANS consisting of six (6) glucopyranose units linked by 1,4-glycosidic bonds.
Enzymes that catalyze the endohydrolysis of 1,4-alpha-glycosidic linkages in STARCH; GLYCOGEN; and related POLYSACCHARIDES and OLIGOSACCHARIDES containing 3 or more 1,4-alpha-linked D-glucose units.
Nutritive tissue of the seeds of flowering plants that surrounds the EMBRYOS. It is produced by a parallel process of fertilization in which a second male gamete from the pollen grain fuses with two female nuclei within the embryo sac. The endosperm varies in ploidy and contains reserves of starch, oils, and proteins, making it an important source of human nutrition.
A dextrodisaccharide from malt and starch. It is used as a sweetening agent and fermentable intermediate in brewing. (Grant & Hackh's Chemical Dictionary, 5th ed)
A homologous group of cyclic GLUCANS consisting of alpha-1,4 bound glucose units obtained by the action of cyclodextrin glucanotransferase on starch or similar substrates. The enzyme is produced by certain species of Bacillus. Cyclodextrins form inclusion complexes with a wide variety of substances.
Periplasmic proteins that bind MALTOSE and maltodextrin. They take part in the maltose transport system of BACTERIA.
An inhibitor of ALPHA-GLUCOSIDASES that retards the digestion and absorption of DIETARY CARBOHYDRATES in the SMALL INTESTINE.
A cellulose derivative which is a beta-(1,4)-D-glucopyranose polymer. It is used as a bulk laxative and as an emulsifier and thickener in cosmetics and pharmaceuticals and as a stabilizer for reagents.
Submicron-sized fibers with diameters typically between 50 and 500 nanometers. The very small dimension of these fibers can generate a high surface area to volume ratio, which makes them potential candidates for various biomedical and other applications.
A polysaccharide with glucose units linked as in CELLOBIOSE. It is the chief constituent of plant fibers, cotton being the purest natural form of the substance. As a raw material, it forms the basis for many derivatives used in chromatography, ion exchange materials, explosives manufacturing, and pharmaceutical preparations.
Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative.
Various mixtures of fats, waxes, animal and plant oils and solid and liquid hydrocarbons; vehicles for medicinal substances intended for external application; there are four classes: hydrocarbon base, absorption base, water-removable base and water-soluble base; several are also emollients.
An endocellulase with specificity for the hydrolysis of 1,4-beta-glucosidic linkages in CELLULOSE, lichenin, and cereal beta-glucans.
Administration of a soluble dosage form between the cheek and gingiva. It may involve direct application of a drug onto the buccal mucosa, as by painting or spraying.
Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.
Contamination of bodies of water (such as LAKES; RIVERS; SEAS; and GROUNDWATER.)
Pesticides used to destroy unwanted vegetation, especially various types of weeds, grasses (POACEAE), and woody plants. Some plants develop HERBICIDE RESISTANCE.
Chemicals used to destroy pests of any sort. The concept includes fungicides (FUNGICIDES, INDUSTRIAL); INSECTICIDES; RODENTICIDES; etc.
Pesticides designed to control insects that are harmful to man. The insects may be directly harmful, as those acting as disease vectors, or indirectly harmful, as destroyers of crops, food products, or textile fabrics.
Adverse effect upon bodies of water (LAKES; RIVERS; seas; groundwater etc.) caused by CHEMICAL WATER POLLUTANTS.
A numerical system of measuring the rate of BLOOD GLUCOSE generation from a particular food item as compared to a reference item, such as glucose = 100. Foods with higher glycemic index numbers create greater blood sugar swings.
Seeds from grasses (POACEAE) which are important in the diet.
Carbohydrates present in food comprising digestible sugars and starches and indigestible cellulose and other dietary fibers. The former are the major source of energy. The sugars are in beet and cane sugar, fruits, honey, sweet corn, corn syrup, milk and milk products, etc.; the starches are in cereal grains, legumes (FABACEAE), tubers, etc. (From Claudio & Lagua, Nutrition and Diet Therapy Dictionary, 3d ed, p32, p277)
Pregnadienes which have undergone ring contractions or are lacking carbon-18 or carbon-19.
An anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin is indicated for the prophylaxis and/or treatment of venous thrombosis and its extension, pulmonary embolism, and atrial fibrillation with embolization. It is also used as an adjunct in the prophylaxis of systemic embolism after myocardial infarction. Warfarin is also used as a rodenticide.
Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed.
Agents that prevent clotting.
OXIDOREDUCTASES which mediate vitamin K metabolism by converting inactive vitamin K 2,3-epoxide to active vitamin K.
A genus of VIBRIONACEAE, made up of short, slightly curved, motile, gram-negative rods. Various species produce cholera and other gastrointestinal disorders as well as abortion in sheep and cattle.
Techniques used for determining the values of photometric parameters of light resulting from LUMINESCENCE.
Clotting time of PLASMA recalcified in the presence of excess TISSUE THROMBOPLASTIN. Factors measured are FIBRINOGEN; PROTHROMBIN; FACTOR V; FACTOR VII; and FACTOR X. It is used for monitoring anticoagulant therapy with COUMARINS.
A cardioselective beta-1-adrenergic antagonist with no partial agonist activity.
An aspartate aminotransferase found in MITOCHONDRIA.
The L-Isomer of bunolol.
A beta-adrenergic antagonist used as an anti-arrhythmia agent, an anti-angina agent, an antihypertensive agent, and an antiglaucoma agent.
A beta-adrenergic antagonist similar in action to PROPRANOLOL. The levo-isomer is the more active. Timolol has been proposed as an antihypertensive, antiarrhythmic, antiangina, and antiglaucoma agent. It is also used in the treatment of MIGRAINE DISORDERS and tremor.
Drugs that bind to but do not activate beta-adrenergic receptors thereby blocking the actions of beta-adrenergic agonists. Adrenergic beta-antagonists are used for treatment of hypertension, cardiac arrhythmias, angina pectoris, glaucoma, migraine headaches, and anxiety.
A plant genus of the family BRASSICACEAE that contains ARABIDOPSIS PROTEINS and MADS DOMAIN PROTEINS. The species A. thaliana is used for experiments in classical plant genetics as well as molecular genetic studies in plant physiology, biochemistry, and development.
Proteins that originate from plants species belonging to the genus ARABIDOPSIS. The most intensely studied species of Arabidopsis, Arabidopsis thaliana, is commonly used in laboratory experiments.
The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level.
The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Small pumps, often implantable, designed for temporarily assisting the heart, usually the LEFT VENTRICLE, to pump blood. They consist of a pumping chamber and a power source, which may be partially or totally external to the body and activated by electromagnetic motors.
The homogeneous mixtures formed by the mixing of a solid, liquid, or gaseous substance (solute) with a liquid (the solvent), from which the dissolved substances can be recovered by physical processes. (From Grant & Hackh's Chemical Dictionary, 5th ed)
The study of the patterns of ridges of the skin of the fingers, palms, toes, and soles.
Persistent and disabling ANXIETY.

Thermus aquaticus ATCC 33923 amylomaltase gene cloning and expression and enzyme characterization: production of cycloamylose. (1/213)

The amylomaltase gene of the thermophilic bacterium Thermus aquaticus ATCC 33923 was cloned and sequenced. The open reading frame of this gene consisted of 1,503 nucleotides and encoded a polypeptide that was 500 amino acids long and had a calculated molecular mass of 57,221 Da. The deduced amino acid sequence of the amylomaltase exhibited a high level of homology with the amino acid sequence of potato disproportionating enzyme (D-enzyme) (41%) but a low level of homology with the amino acid sequence of the Escherichia coli amylomaltase (19%). The amylomaltase gene was overexpressed in E. coli, and the enzyme was purified. This enzyme exhibited maximum activity at 75 degrees C in a 10-min reaction with maltotriose and was stable at temperatures up to 85 degrees C. When the enzyme acted on amylose, it catalyzed an intramolecular transglycosylation (cyclization) reaction which produced cyclic alpha-1,4-glucan (cycloamylose), like potato D-enzyme. The yield of cycloamylose produced from synthetic amylose with an average molecular mass of 110 kDa was 84%. However, the minimum degree of polymerization (DP) of the cycloamylose produced by T. aquaticus enzyme was 22, whereas the minimum DP of the cycloamylose produced by potato D-enzyme was 17. The T. aquaticus enzyme also catalyzed intermolecular transglycosylation of maltooligosaccharides. A detailed analysis of the activity of T. aquaticus ATCC 33923 amylomaltase with maltooligosaccharides indicated that the catalytic properties of this enzyme differ from those of E. coli amylomaltase and the plant D-enzyme.  (+info)

Granule-bound starch synthase I in isolated starch granules elongates malto-oligosaccharides processively. (2/213)

Isoforms of starch synthase belonging to the granule-bound starch synthase I (GBSSI) class synthesize the amylose component of starch in plants. Other granule-bound isoforms of starch synthase, such as starch synthase II (SSII), are unable to synthesize amylose. The kinetic properties of GBSSI and SSII that are responsible for these functional differences have been investigated using starch granules from embryos of wild-type peas and rug5 and lam mutant peas, which contain, respectively, both GBSSI and SSII, GBSSI but not SSII and SSII but not GBSSI. We show that GBSSI in isolated granules elongates malto-oligosaccharides processively, adding more than one glucose molecule for each enzyme-glucan encounter. Granule-bound SSII can elongate malto-oligosaccharides, but has a lower affinity for these than GBSSI and does not elongate processively. As a result of these properties GBSSI synthesizes longer malto-oligosaccharides than SSII. The significance of these results with respect to the roles of GBSSI and SSII in vivo is discussed.  (+info)

Stable, inducible thermoacidophilic alpha-amylase from Bacillus acidocaldarius. (3/213)

Bacillus acidocaldarius Agnano 101 produces an inducible thermoacidophilic alpha-amylase. The enzyme production occurs during the stationary phase of growth in the presence of compounds with alpha-1,4-glucosidic linkages. The enzymatic activity is both present in the culture medium and associated with the cells; the enzymes purified from both sources show identical molecular and catalytic properties. The purified amylase has a single polypeptide chain of molecular weight 68,000 and behaves like an alpha-amylase with affinity constants for starch and related substances of 0.8 to 0.9 mg/ml. The pH and temperature optima for activity are 3.5 and 75degreesC, respectively. The amylase is stable at acidic pH (below 4.5). Its thermal stability is strictly dependent upon protein concentration; the half-life at 60degreesC of the amylase in a 70-mug/ml solution is about 5 days.  (+info)

Mechanism of porcine pancreatic alpha-amylase inhibition of amylose and maltopentaose hydrolysis by kidney bean (Phaseolus vulgaris) inhibitor and comparison with that by acarbose. (4/213)

The effects of Phaseolus vulgaris inhibitor (alpha-AI) on the amylose and maltopentaose hydrolysis catalysed by porcine pancreatic alpha-amylase (PPA) were investigated. Based on a statistical analysis of the kinetic data and using the general velocity equation, which is valid at equilibrium for all types of inhibition in a single-substrate reaction, it was concluded that the inhibitory mode is of the mixed noncompetitive type involving two molecules of inhibitor. In line with this conclusion, the Lineweaver-Burk primary plots intersect in the second quadrant and the secondary plots of the slopes and the intercepts versus the inhibitor concentrations are parabolic curves, whether the substrate used was amylose or maltopentaose. A specific inhibition model of the mixed noncompetitive type applies here. This model differs from those previously proposed for acarbose [Al Kazaz, M., Desseaux, V., Marchis-Mouren, G., Payan, F., Forest, E. & Santimone, M. (1996) Eur. J. Biochem. 241, 787-796 and Al Kazaz, M., Desseaux, V., Marchis-Mouren, G., Prodanov, E. & Santimone, M. (1998) Eur. J. Biochem. 252, 100-107]. In particular, with alpha-AI, the inhibition takes place only when PPA and alpha-AI are preincubated together before the substrate is added. This shows that the inhibitory PPA-alphaAI complex is formed during the preincubation period. Secondly, other inhibitory complexes are formed, in which two molecules of inhibitor are bound to either the free enzyme or the enzyme-substrate complex. The catalytic efficiency was determined both with and without inhibitor. Using the same molar concentration of inhibitor, alpha-AI was found to be a much stronger inhibitor than acarbose. However, when the inhibitor amount is expressed on a weight basis (mg x L-1), the opposite conclusion is drawn. In addition, limited proteolysis was performed on PPA alone and on the alpha-AI-PPA complex. The results show that, in the complex, PPA is more sensitive to subtilisin attack, and shorter fragments are obtained. These data reflect the conformational changes undergone by PPA as the result of the protein inhibitor binding, which differ from those previously observed with acarbose.  (+info)

Psyllium shifts the fermentation site of high-amylose cornstarch toward the distal colon and increases fecal butyrate concentration in rats. (5/213)

We examined the combination effects of psyllium (PS) and resistant starch on large bowel short-chain fatty acids (SCFA). Rats were fed one of the following four diets: low amylose (LAS) or high amylose cornstarch diets (HAS, 50 g/kg diet) with or without 15 g PS/kg diet (LAS/PS and HAS/PS diets). HAS and/or PS were substituted for the same amounts of LAS in diets. Cecal butyrate concentrations were significantly higher in rats fed the HAS and HAS/PS diets than in those fed the LAS and LAS/PS diets. However, butyrate and total SCFA concentrations in rats fed the HAS diet decreased along the length of the colon and fecal butyrate concentration was reduced to one-third of that in the cecum. In contrast, the HAS/PS diet maintained higher butyrate concentrations throughout the large bowel. Fecal butyrate concentration in the HAS/PS diet-fed group significantly exceeded the sum of the concentrations in rats fed the LAS/PS and HAS diets. PS supplementation to the HAS diet significantly increased fecal starch excretion by 10 fold compared with that of rats fed the HAS diet. There was a positive correlation between fecal butyrate concentration and fecal starch excretion (r = 0.709, P < 0.0001). In a further experiment, ileorectostomized rats were fed the HAS and HAS/PS diets. From the difference in fecal starch excretion between normal and ileorectostomized rats, starch degradation by large bowel microflora in rats fed the HAS and HAS/PS diets was deduced to be 96% and 63%, respectively. These findings support the hypothesis that PS may delay the fermentation rate of HAS in the cecum and shift the fermentation site of HAS toward the distal colon, leading to the higher butyrate concentration in the distal colon and feces.  (+info)

Characterization and crystallization of an active N-terminally truncated form of the Escherichia coli glycogen branching enzyme. (6/213)

The prokaryotic glycogen branching enzymes (GBE) can be divided into two groups on the basis of their primary structures: the first group of enzymes, which includes GBE from Escherichia coli, is characterized by a long N-terminal extension that is absent in the enzymes of the second group. The extension consists of approximately 100 amino-acid residues with unknown function. In order to characterize the function of this region, the 728 amino-acid residue, full-length E. coli GBE, and a truncated form (nGBE) missing the first 107 amino-acid residues were overexpressed in E. coli. Both enzymes were purified to homogeneity by a simple purification procedure involving ammonium sulphate precipitation, ion-exchange chromatography, and a second ammonium sulphate precipitation. Purified full-length enzyme was poorly soluble and formed aggregates, which were inactive, at concentrations above 1 mg.mL-1. In contrast, the truncated form could be concentrated to 6 mg.mL-1 without any visible signs of aggregation or loss of activity on concentration. The ability to overexpress nGBE in a highly soluble form has allowed us to produce diffracting crystals of a branching enzyme for the first time. A comparison of the specific activities of purified GBE and nGBE in assays where amylose was used as substrate demonstrated that nGBE retained approximately half of the branching activity of full-length GBE and is therefore a suitable model for the study of the enzymes' catalytic mechanism.  (+info)

Mapping of genes for cooking and eating qualities in Thai jasmine rice (KDML105). (7/213)

Thai jasmine rice, KDML 105, is known as the best quality rice. It is known not only for its aroma but also for its good cooking and eating qualities. Amylose content (AC), gel consistency (GC) and gelatinization temperature (GT) are important traits determining rice quality. A population of recombinant inbred lines (RIL) derived from KDML105 x CT9993 cross was used to study the genetic control of AC, GC and GT traits. A total of 191 markers were used in the linkage map construction. The 1605.3 cM linkage map covering nearly the whole rice genome was used for QTL (define QTL) analysis. Four QTLs for AC were detected on chromosomes 3, 4, 6 and 7. These QTLs accounted for 80% of phenotypic variation explained (PVE) in AC. The presence of one major gene as well as several modifiers was responsible for the expression of the trait. Two QTLs on chromosome 6 and one on chromosome 7 were detected for GC, which accounts for 57% of PVE. A single gene of major effect along with modifier genes controls GC from this cross. The QTLs in the vicinity of waxy locus were major contributors in the expression of AC and GC. The finding that the position of QTLs for AC and GC were near each other may reflect tight linkage or pleiotropy. Three QTLs were detected, one on chromosome 2 and two on chromosome 6, which accounted for 67% of PVE in GT. Just like AC and GC, one major gene and modifier genes governed the variation in GT resulting from the KDML105 x CT9993 cross. Breeding for cooking and eating qualities will largely rely on the preferences of the end users.  (+info)

Suppression of extablished Friend virus leukemia by statolon: potentiation of statolon's leukemosuppressive activity by chlorite-oxidized oxyamylose. (8/213)

Treatment of Friend virus (FV)-infected mice, 3 days after FV inoculation, with statolon, an extract of the mold Penicillium stoloniferum, induces interferon and restores immunocompetence to viral and nonviral antigens such as sheep erythrocytes. Clinical remissions are established in 20 to 70% of the infected mice. Cholorite-oxidized oxyamylose administered intraperitoneally 24 h before, 3 h before, or 3 h after statolon enhanced interferon production, but the increased number of mice protected against FV disease was more closely related to the associated enhanced synthesis of FV cytotoxic antibody. The prolonged selective immunodepression to intraperitoneal sheep erythrocytes after intraperitoneal administration of chlorite-oxidized oxyamylose-statolon appeared to be related to a stimulation in number and erythrocyte-phagocytic capacity of peritoneal macrophages. The marked activation of macrophages in FV leukemic mice after such treatment may also have contributed to the enhanced FV leukemosuppressive effects of chlorite-oxidized oxyamylose-statolon.  (+info)

TY - JOUR. T1 - Effects of preparation temperature on gelation properties and molecular structure of high-amylose maize starch. AU - Vesterinen, Elina. AU - Suortti, Tapani. AU - Autio, Karin. PY - 2001. Y1 - 2001. N2 - In this study, 3% aqueous high‐amylose maize starch (Hylon VII) dispersions were heated to temperatures of 140-165°C. The onset and rate of gel formation was observed using a small‐strain oscillation rheometer as a function of temperature from 90 to 25°C. The gel formation clearly began earlier in high‐amylose starch paste preheated at lower temperatures, but the rate of gelation was slower and the resulting gel was weaker in comparison with starch pastes preheated at higher temperatures. In addition, the structure of the final gels was studied using large deformation compression measurements. The most rigid gel structure on the basis of small and large deformation tests was obtained for high‐amylose starch gel preheated to 150-152°C, depending on the type of ...
In this study, the film forming behaviour of low amylose (LA) and high amylose (HA) starches was studied. The starch-alone and a blend of plasticizer (polyol)-starch films were developed by gelatinising at various temperatures and casting at 25 °C. The starch-plasticizer films contained glycerol and xylitol either individually or in 1:1 combination. The concentration of plasticizer used was 15%, 20% and 30% for LA films while it was 20%, 30% and 40% for HA films on dry solid basis. The HA-glycerol films retained the highest moisture content among all the films. The HA films exhibited higher glass transition temperature, higher tensile strength, higher modulus of elasticity and lower elongation at break than those obtained from LA starch. The tensile strength and modulus of elasticity decreased and the elongation increased with increasing plasticizer concentrations above 15% on dry solid basis regardless the starch type. Low water vapour permeability was evident in LA and HA films plasticized by ...
TY - JOUR. T1 - 1H NMR study of amylose films plasticised by glycerol and water. AU - Partanen, Riitta. AU - Marie, Vanessa. AU - MacNaughtan, William. AU - Forssell, Pirkko. AU - Farhat, Imad. PY - 2004. Y1 - 2004. N2 - Amylose-glycerol films prepared by casting from solution were hydrated to different water contents. Wide-angle X-ray diffraction analysis suggested that the films were partially crystalline and contained the B polymorph. At a given hydration level, the presence of glycerol did not affect the extent of crystallinity or polymorphism of amylose. Proton NMR relaxometry was used to study the effects of water and glycerol on the molecular mobility of amylose. Spin-spin and spin-lattice relaxation parameters suggested a step change in the mobility of amylose when sufficient plasticiser, water and glycerol, was added to decrease the glass transition temperature (Tg) such that it became equal to or smaller than the observation temperature (T), i.e. (T−Tg)≥0. The mobility of amylose ...
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The sizing compositions and sized glass fibers formed therefrom are provided, wherein the sized glass fibers have a reduced tendency to form gumming deposits on fabrication machinery under relatively high humidity conditions, and wherein processibility of the sized glass fibers with the sizing composition is improved, and wherein the sized glass fiber strand package is improved. The sizing composition comprises in weight percent of the non-aqueous ingredients, about 50 to about 75 weight percent of a starch mixture having about 75 to about 95 percent by weight of the mixture comprised of an underivatized, high amylose starch component and about 5 to about 25 weight percent of the mixture comprised of an easily cookable low amylose starch component; and about 5 to about 35 percent of one or more waxes selected from the group consisting of animal waxes, vegetable waxes, mineral waxes, synthetic waxes, and petroleum waxes; and about 9 to about 77 percent by weight of a nonionic lubricant having fatty
A card sheet including a top material layer having pre-cut weakened lines extending partially but not completely through the top material layer, the top material layer having a front side and a back side; and a starch composition layer applied to the back side of the top material layer, wherein at least a portion of the starch composition diffuses into the top material layer to a depth and renders the top material layer breakable along the weakened lines. A method of making the card sheet, including providing the top material layer, cutting partially through the top material layer; and applying a starch composition to form the starch composition layer on the back side of the top material layer; and at least partially removing any diluent present in the starch composition. The top material layer may be printable, and the card sheet may include a second top material layer.
Starch is made of two homopolymers: amylose and amylopectin, themselves composed of D-glucose molecules. During the process of digestion, starch is dissociated into simple sugar molecules that are readily assimilated by the body. High amylose starch is more resistant to enzymatic digestion and is used as a food supplement for its high fiber content and low glycemic index. It is also used in the textile industry, cosmetic industry, pharmaceutical industry and the production of biodegradable plastics. We are currently working on the generation amylose-rich wheat lines. This is achieved by knocking out genes encoding starch-branching enzymes in the wheat genome. ...
The film forming behaviour and hydrophobicity of high amylose (HA) starch in the presence of three different natural waxes (beeswax, candelilla wax and carnauba wax) were studied in the presence and absence of Tween-80. The HA starch:glycerol (G) ratio was maintained at 80:20 (on dry solid basis) and the concentration of wax was varied from 5% and 10% (w/w). The melted wax samples were homogenized with HAG dispersion with or without Tween-80 and the films were prepared by solution casting. The hydrophobicity and water-barrier properties in these films were determined by using contact angle (CA), water vapour permeability ( ...
We investigate the influence of sorbitol and natural Na+-montmorillonite (nanoclay) loading on the characteristic of high amylose nanocomposites and the distribution of nanoclay after extrusion processing. The innovative aspect is the modification of the nanoclay using the sorbitol plasticizer, and as shown in the XRD results, good intercalated/exfoliated morphology had been achieved in all nanocomposites. The expansion of nanoclay gallery relates to sorbitol loading and nanoclay concentration. Evidence of newly formed hydrogen bonds, due to plasticizer and nanoclay interaction, and also the ternary interaction among starch/sorbitol/nanoclay were taken from peaks associated with -OH stretching located at 3300cm−1 and 999cm−1 from the FTIR spectra. Further, 13C NMR spectra demonstrated that the sorbitol mobility was significantly lowered with 1% nanoclay and overall, sorbitol mobility was lower than that of starch chains. TEM directly supported the presence of exfoliated and ...
Shafie, Siti Raihanah binti (2017) Saturated fatty acids, linseed components and high amylose wheat in attenuation of diet-induced metabolic syndrome. [Thesis (PhD/Research)] ...
Muscat, Delina, Adhikari, Raju, McKnight, Stafford, Guo, Qipeng and Adhikari, Benu 2013, The physicochemical characteristics and hydrophobicity of high amylose starch-glycerol films in the presence of three natural waxes, Journal of food engineering, vol. 119, no. 2, pp. 205-219, doi: 10.1016/j.jfoodeng.2013.05.033. ...
Starch granules contain two glucose polymers, amylopectin and amylose. Amylose makes up approximately 10 to 30% (w/w) of all natural starches thus far examined…
Starch analyzer,Amylose analyzer is your partner when you need excellence in grain amylose analysis. Our experience and expertise in automated grain quality analysis is long and proven.
The intestinal microbiota may regulate bone metabolism by reducing levels of pro-inflammatory cytokines, and T cells in bone tissues of oestrogen-deficient mice have been reported. Resistant starch (RS) is a type of dietary fibre and results in changes in the composition of the gut microbiota. We evaluated the effects of RS supplemented in diets on intestinal microbial composition, bone mineral density, and inflammatory-gene expression in the colon and bone marrow of ovariectomised (OVX) mice. OVX mice were divided randomly into three groups: OVX control, OVX fed a 20% high amylose corn starch (HAS) diet, and OVX fed a 20% acid-hydrolysed HAS (AH-HAS) diet. HAS and AH-HAS diets contained 6.8% and 12% of RS, respectively. After 6 weeks, treatment with HAS or AH-HAS increased the abundance of Bifidobacterium spp. in faeces. The AH-HAS diet tended to upregulate mRNA expression of interleukin (IL)-10 in the colon, and downregulate expression of receptor activator of nuclear factor kappa-B ligand and IL-7
Novel hydrogel compositions of diester crosslinked polyglucans and a process for their preparation are provided. Amylose, dextran, and pullulan succinates and glutarates when crosslinked as described were found to not only have use as general fluid sorbants but also to have exceptional hemostatic activity, adherence to a wound, and bioabsorption without causing undue irritation of the tissue or toxic effects. Reticulated hydrogel sponges made of the crosslinked diesters which are particularly useful as general fluid sorbants, and those of amylose succinate and amylose glutarate are most excellent bioabsorbable hemostatic agents. The sponges are made by lyophilizing water-soluble salts of the mono- or half-esters, such as water-soluble salts of amylose succinate or amylose glutarate, under process conditions of the invention in the presence of a reticulating agent which causes a controlled melting of the salt solution as it nears the dry state during the lyophilizing step. The resulting reticulated,
The consumption of cereals-based foods with low glycemic indexes, high micronutrients and fibers contents are highly recommended. The target of this work is to provide new solutions for cereal based foods: the knowledge and understanding on the in vivo fate will be used to define structural features to gain in foods ...
The enzymatic[ Enzyme ] A biochemical substance that acts as a catalyst, resulting a specific biochemical reaction. More cleavage of chemical bonds involving water. For instance, amylose[ Amylose ] A polysaccharide comprising of long, unbranched glucose chains. Amylose serves as an energy store in green plants, along with amylopectin which together constitute starch. More is hydrolysedThe enzymatic cleavage of chemical bonds involving water. For instance, amylose is hydrolysed into glucose in the presence of amylase, a digestive enzyme. More into glucose[ Glucose, D-glucose, Dextrose ] A monosaccharide with the molecular formula C6H12O6. The principle isomer of glucose is D-glucose (dextrose). It is the product of photosynthesis and the building block of a number of important carbohydrate polymers, including cellulose. In animals, glucose is the defining sugar of the blood. It is obtained from directly from dietary glucose, and from the More in the presence of amylase[ Amylase ] An enzyme which ...
Es git zwei Arte vo Stärchimolekül: Amylose und Amylopektin. Amylopektin isch es verzwiigts Molekül und eis vo de gröschte wo i de Natur vorchömed. Amylose isch chliiner und linear und hät es molekulars Gwicht vo öppe 500000. De Aateil vo Amylopektin und Amylose a de ganze Stärchi hanget vo de Quäle (Pflanze) ab. Di meischte Arte vo Stärchi beschtönd us öppe 25 % Amylose und 75 % Amylopektin. Stärchimolekül sind nöd eifach i de Zäle verteilt, sondern i Chörner packt. Diä Chörner bestönd us Schichte, wo mer underem Elektronemikroskop dütlich gseht. Di einzelne Schichte underscheided sich i de Aaornig vo de Molekül: i de einte Schichte sind d Molekül amorph agordnet, i de andere chrischtalliin. ...
Hi everybody, I have expressed a recombinant mouse protein, p97, in High Five insect cells using Gibcos baculovirus protocol. This is a fusion protein with Maltose binding protein at the N-terminal end. After purifying on amylose resin, I get very pure protein; only two bands show up by Coomassie staining. One is my recombinant fusion protein, MBP-p97, the other is the native p97 from the insect cells. Since p97 forms normally forms homohexamers, I assume the insect p97 is similar enough to complex with the overexpressed recombinant p97. Has anyone come across this problem? If so, I need ideas to get rid of the native protein. Amylose resin is not compatible with denaturing protocols and I would prefer not to have to try to renature to restore ATPase activity. Virginia ...
Dextrose and amylose It is our great pleasure to introduce ourself as leading manufacturers of dextrose a product which is widely used in manufacturing of papers.We are supllying this product at india and to other europeon countries as well.The main advantage of this is, a starch with more than 75% to 80% of amylose contents.This is 100 % ecofriendly and soluble in water.This is a very good ...
Carnaroli rice has elongated grains and a small central pearl in the middle. It has a low-starch loss and high-absorption capacity. Perfect for cooking smooth, creamy risotto dishes. Italians love Carnaroli because of its high Amylose content (a component of starch) which results in creamier, more velvety risottos. Carnaroli is a staple of the Northern Italian pantry, risottos and rice based soups and are a great way to highlight whatever is in season!. Product Added: 24/02/2017 ...
Amylose, a mostly linear homopolymer of α(1,4)-D-glucose extracted from native starch, has the ability to form crystalline inclusion compounds with a large variety of small molecules. In these crystallosolvates, the so-called V-amylose occurs in the form of single helices and the ligands can be located inside the helices, in-between or both [Lourdin et al., in Starch - Metabolism and Structure, Springer Japan, 2015, p. 61]. In this study, we have crystallized fractions of native and in vitro-biosynthesized amylose in the presence of various fatty acids and ibuprofen, a widely used anti-inflammatory drug [Yang et al., Starch-Stärke 65 (2013), 593]. The morphology, structure and stoichiometry of the resulting lamellar single crystals were characterized using TEM imaging, electron and X-ray diffraction, and solid-state NMR.. Dilute aqueous solutions of amylose (0.1 wt%) and fatty acids were briefly heated at 160°C, then kept at 90 or 100°C for 24 h. Crystallization occurred during the slow ...
Name of Enzyme Substrate Location Task Products Salivary Amylase (likes pH level of around 6.2-7.4) Amylose in the mouth Saliva which is released from the salivary glands Aid in the hydrolysis of the starch amylose into the disaccharide maltose (glycocidic bond) Maltose, and Amylose Pepsinogen No substrate, inactive form of pepsin Produced in the gastric… ...
Joining proteins together into multi-functional assemblies could be useful for improved diagnostic and therapeutic tools. However, it is tricky to link protein units with precise orientation. Also, if reversible bridges are used between the protein units, the assemblies can soon re-arrange or fall apart.. In 2012 Bijan Zakeri in the Howarth lab developed the SpyTag/SpyCatcher linkage system by re-engineering a protein from Streptococcus pyogenes. The approach here depended on Raphael Gayet in the lab creating a 2nd specific linkage from Streptococcus pneumoniae called SnoopTag/SnoopCatcher. Teams are formed by alternating SpyTag reaction with SnoopTag reaction on amylose resin.. The group decided to apply the new technology to synthesise controlled protein assemblies to induce cancer cell apoptosis. Team building just involves adding and washing, with each subunit expressed in bacteria. So we could produce lots of combinations for simultaneous stimulation of Death Receptors and various ...
The enantiomeric resolution of a series of N-arylamides was examined on amylose tris[(S)-1-phenylethylcarbamate] coated onto aminopropylated 7 μm silica with 500 Å diameter pores and on naked silica 5 μm particle size with 500 Å diameter pores. The enantiomeric resolution obtained for this... mehr ...
The enantiomeric resolution of a series of N-arylamides was examined on amylose tris[(S)-1-phenylethylcarbamate] coated onto aminopropylated 7 μm silica with 500 Å diameter pores and on naked silica 5 μm particle size with 500 Å diameter pores. The enantiomeric resolution obtained for this... mehr ...
Because farro is a robust, resilient grain that often takes hours to cook, most commercial farro is pearled-like barley-to reduce its cooking time. Pearling farro or barley means that once hulled, part of its bran layer is scalped off. When the bran layer goes, the flavor goes, too. What remains? A chewy plug of pure starch. Anson Mills pearls no farro.. Our work-around for farros long cook time comes with an overnight soak, during which time the amylase/amylose starch conversion begins and the farro will smell sweet and fresh. Once in the pot, it still takes its good time (a full hour), but picks up the perks of absorbing full-flavor homemade chicken stock infused with leeks and mushrooms.. Speaking of mushrooms, we had fresh morels shipped to our door from Mikuni Wild Harvest, premier hunter-gatherers operating out of Seattle and Vancouver. The morels arrived clean, pristine, and absolutely compelling in flavor. Hand-collected morels will certainly-and morels sourced elsewhere may very ...
White amorphous polysaccharide granules that compose about 70% of a corn kernel. Cornstarch is separated from the gluten and fibrous particles by sieving, wet grinding, then wash flotation. It is composed of 28% amylose and 75% amylopectin. When heated with water, cornstarch forms a medium viscosity solution that does not change with heating time. It thickens substantially on cooling to form an opaque gel. Cornstarch is the predominant starch used in North America as a thickener and filler in foods. It is used as an absorbent powder in baby powders and on the interior of some powdered latex gloves. Cornstarch is also used as an adhesive, a sizing agent, and a filler in waxes and plastics. ...
Mochi Cake - Black Sesame, Sesame Cake Snack from SAMJIN CNF CO., LTD., from Korea. I always appreciate international fans who enjoy K Pop and get to know our culture. For preserving larger batches over an extended time, freezing is recommended. One study found that a temperature of 62 °C corresponds to the gelatinization of mochi. Google apps 27 1/2 in. 「昨日食べ過ぎて気持ち悪くなってしまった。」 kinou tabesugite kimochiwaruku natteshimatta. Suggest as a translation of Mochi Copy; DeepL Translator Linguee. What is the word kochi-mochi in English? On July 26, he showed off his new hair.The caption is supposed to translate to, This was JiJinJung. When daifuku is made with kusa mochi, it is called yomogi daifuku. The protein concentration of the rice is higher than that of normal short-grain rice, and the two also differ in amylose content. what is mochi in korean. They also have a mid-Autumn festival to celebrate the moon, which is called Chuseok. Its quality of ...
To control starch digestion, debranched high amylose maize starch (dG50) was forced to re-assemble through hydrothermal treatment combined with lauric acid (LA) complexation under high pressure (dG50-LA-HP) and atmospheric pressure (dG50-LA-AP). Both dG50-LA-HP and dG50-LA-AP complexes showed B + V hybrid crystalline structures, but mainly V-type for dG50-LA-AP and apparently B + V-type for dG50-L ...
However, starch granule composition, expressed in terms of amylose content and phosphate monoesters, and molecular weight of starch clearly affects some film properties. As quite cheap and sustainable resources, polysaccharides are increasingly used in combination with synthetic polymers to try to make partially degradable plastics. For all these reasons, we have realized the value for many medical students of presenting the principles of immunology in a concise and clear manner. Polymer-based DNA delivery systems have attracted special interest, in particular via intravenous injection with many intra- and extracellular barriers. Debska, G.; Szewczyk, A. Mol Ther 2005, 11, 990â 995. In fact, cholesterol removal after transfection di, expression of the delivered gene. 137. QDs are 10-20 times brighter as compared to the conventional organic dyes [30]. Table 3.3. Suk, J. S.; Suh, J.; Choy, K.; Lai, S. K.; Fu, J.; Hanes, J. host genome. Cells preincubated with C12-imidazole released it slowly into ...
Google Scholar: https://scholar.google.com/citations?hl=en&user=1-SPdE8AAAAJ. ORCID ID: 0000-0003-0583-6205. Scopus Author ID: 55807823200. Article Available Without Subscription for Public Access, Article Available Only With Subscription for Public Access. 2021. Govindaraju, I., Zhuo, G.-Y., Chakraborty, I., Melanthota, S. K., Mal, S. S., Sarmah, B., Baruah, V. J., Mahato, K. K., & Mazumder, N. (2021). Investigation of Structural and Physico-chemical Properties of Rice Starch with Varied Amylose Content: A Combined Microscopy, Spectroscopy, and Thermal study. Food Hydrocolloids, 122, 107093. (Online version; Impact factor: 9.147; Citation:0; doi: 10.1016/j.foodhyd.2021.107093). Govindaraju, I., Chakraborty, I., Baruah, V. J., Sarmah, B., Mahato, K. K., & Mazumder, N. Structure and Morphological Properties of Starch Macromolecule using Biophysical Techniques. Starch‐Stärke,73(1-2), 2000030. (Online version; Impact factor: 2.741; Citation:2; doi: 10.1002/star.202000030).. Das, B., Choudhury, ...
This report serves to document research conducted under a Specific Cooperative Agreement with Washington State University. The parent research is 5348-43440-005-00D. Several genetic systems are highly relevant to wheat grain quality and utilization (cf. parent project). These include polyphenol oxidase (PPO), an enzyme that plays a primary role in product discoloration, arabinoxylans, important non-starch carbohydrates of wheat grain and flour, puroindolines, the genes responsible for soft kernel texture, and starch amylose content. Successful collaborations on polyphenol oxidase and arabinoxylans have spawned the award of an AFRI competitive grant during a previous round of funding. A PhD student has been secured and her stipend and other AFRI monies are expended through this SCA. Progress: over 1,000 Regional nursery samples have been obtained and milling and baking tests were completed. ADODR monitoring: Cooperators performance is monitored frequently via face-to-face meetings, and e-mail ...
1. Amylosis 3. Hydorlysis. - Brake down of amylopection and amylose - Add water - Amylose enzymes: Alpha-amylase & Beta-amylase - OH-mono & H-mono. - Alpha -amylase ---, alpha maltose and glucose. - Beta-amylase ---, Beta maltase 4. Cellulolysis. - Amylopectin Enzyme: Alpha-1:6- glucosidase - 2 Enzymes; Endocellulase & Exocellulase. - produces alpha glucose - Endocellulase ----, glucose & Cellulobiose. 2. Glycogenolysis - Exocellulase ---, Cellulobiose. - 3 Enzymes; Phosphorylase, Transferase, alpha- 1:6- glucosidase - Phosphorylase ---, Releases all phosphate groups attached 5. Phosphorylation. - Transferase ---, Moves 3 glucose molecules to the non-reducing end - Add Phosphoric Acid. - alpha-1:6-glucosidase ---, Brakes the 1:6 links between branched chains - P-mono & OH-mono. ...
Who doesnt like a hot steaming bowl of risotto on a cool crisp fall day? I look forward to this time of year when we can indulge ourselves in the pleasure of what I think is the ultimate comfort food. There are several varieties out there of risotto rice, however, the principal varieties used in Italy are Carnaroli, Vialone Nano and Arborio. Carnaroli and Vialone Nano are considered to be the best (and most expensive) varieties, but I have been using the Arborio variety pretty exclusively and have been happy with the results. The thing all these varieties have in common is there high starch to low amylose ratio that gives the finished dish its classic creaminess. ...
1. Enzymes are complex proteins produced by living cells that catalyze specific biochemical reactions usually at body temperature (98.6 F or 37 C). Enzymes are usually sold in powder form and are obtained from animal, plant (particularly fungal), and bacteriological sources. In addition to their source designation, enzymes are also described in terms of unit definition, activity, and purity.. 2. The α-amylases attack randomly along the amylose chain (the major component of wheat starch) to convert it into dextrins (short-chained polysaccharides), which are very water soluble. The β-amylases attack amylose only from one end at a time and are therefore much less effective compared to α-amylases. Diastases contain both α- and β-amylases and, therefore, are not as effective as the α-amylases alone. Proteases cleave the bonds of proteins leading to shorter chain polypeptides and finally to amino acid molecules, which are water soluble. Trypsins, which come from the ferments of pancreatic ...
Two monosaccharide molecules can be joined together in a condensation reaction, where a new bond called a glycosidic bond forms, and water is eliminated. Building polysaccharides such as starch and glycogen involves the making and breaking of glycosidic bonds. Glucose is C6H12O6. it can be drawn in either a chain or ring structure, and has slightly different arrangements which cause different properties.. Two alpha glucoses=maltose. Three or more glucose molecules=amylose. (1-4). Long chains of amylose coil into a spring because of the shape of the glucose molecule and the formation of the glycosidic bonds. Makes it compact ...
IG column 은 Amylose derivatives (Amylose tris(3-chloro-5-methylphenylcarbamate))을 Silica에 고정화 한 고정상을 사용하고 있기 때문에, 이동상과 샘플 용해 용액으로 Hexane, Alcohol 뿐만 아니라, Ethyl Acetate (EA), THF, Halogen 계열 용매 등 silica 기반의 HPLC 용 Column에 사용할 수 있는 모든 용매를 사용하실 수 있습니다. 또한 역상 조건에서도 사용하실 수 있습니다. Micro bore analytical column 부터, 분취용 prep column까지 다양한 내경과 길이의 column 을 제공하고 있기 때문에, 용도에 따른 선정이 가능합니다.. ...
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Lamylose hATTR est une maladie évolutive causée par une mutation du gène de la transthyrétine (TTR) pouvant entraîner une invalidité et une mortalité importantes chez les patients
Data on 6,500 pesticides, insecticides and herbicides including toxicity, water pollution, ecological toxicity, uses and regulatory status.
THE eating quality of Australian beef continues to rise, with the national average MSA Index reaching 57.56 points in 2015-17 - thats a large rise of 0.84 index points since the 2010-11 grading year, a newly released report has shown. The post MSA eating quality performance continues to rise appeared first on Beef Central ...
Here, we demonstrated that the activity of FKBP38 is controlled by its association with Ca2+/CaM. Enzymatic activity was observed at calcium concentrations below 1 μM. Simultaneously, appearance of an FK506‐binding site in the heterodimeric complex was observed. In the absence of Ca2+/CaM, the enzyme remained completely inactive, and commonly known FKBP ligands, such as immunosuppressive and nonimmunosuppressive peptidomacrolides and their derivatives, failed to bind.. Our study provides the first example for a cofactor‐regulated folding helper enzyme. In order to verify enzyme activation by intracellular Ca2+ rise, the active site concentration of endogenous FKBP38 was determined by co‐immunoprecipitation and affinity absorption on MBP‐Bcl‐2 amylose beads. The inactive form of FKBP38 dominates in unstimulated SH‐SY5Y cells.. Near‐UV CD spectroscopy revealed activation of FKBP38 in the Ca2+/CaM/FKBP38 complex by changes of the tertiary structure‐related signals of the enzyme. As ...
Solid-state fermentation for lipase production was carried by Rhizopus oligosporous ISUUV-16. Almond meal was used as basal substrate with distilled water as moistening agent at substrate to diluent ratio of 1:0.7. Fermentation was carried out at 30oC and culture was incubated for 48 h. Maximum lipase activity under solid-state condition was obtained when Tween 80 at the level of 0.5 % was used as additional carbon source. Best organic nitrogen sources for optimal lipolytic activity was ammonium sulfate (4 %). This study would improve the further optimization steps on the bioprocess development track ...
TY - JOUR. T1 - Inclusion complex formation between high amylose corn starch and alkylresorcinols from rye bran. AU - Gunenc, Aynur. AU - Kong, Lingyan. AU - Elias, Ryan J.. AU - Ziegler, Gregory R.. N1 - Funding Information: The authors appreciate the assistance of Mr. Drew Elders in sourcing the rye bran and conducting the LC-MS analyses. This work was supported by USDA National Institute of Food and Hatch Appropriations under Project PEN04565 and Accession 1002916. Funding Information: The authors appreciate the assistance of Mr. Drew Elders in sourcing the rye bran and conducting the LC-MS analyses. This work was supported by USDA National Institute of Food and Hatch Appropriations under Project PEN04565 and Accession 1002916. Publisher Copyright: © 2018 Elsevier Ltd. PY - 2018/9/1. Y1 - 2018/9/1. N2 - The formation of high amylose corn starch (HACS)-alkylresorcinol (AR) inclusion complexes was demonstrated using HACS and a crude AR extract from rye bran, and was confirmed by complementary ...
Looking for online definition of amylose in the Medical Dictionary? amylose explanation free. What is amylose? Meaning of amylose medical term. What does amylose mean?
To our knowledge the present paper shows for the first time the kinetic parameters of all the three starch branching enzyme (BE) isozymes, BEI, BEIIa and BEIIb, from rice with both amylopectin and synthetic amylose as glucan substrate. The activities of these BE isozymes with a linear glucan amylose decreased with a decrease in the molar size of amylose, and no activities of BEIIa and BEIIb were found when the degree of polymerization (DP) of amylose was lower than at least 80, whereas BEI had an activity with amylose of a DP higher than approximately 50. Detailed analyses of debranched products from BE reactions revealed the distinct chain length preferences of the individual BE isozymes. BEIIb almost exclusively transferred chains of DP7 and DP6 while BEIIa formed a wide range of short chains of DP6 to around DP15 from outer chains of amylopectin and amylose. On the other hand, BEI formed a variety of short chains and intermediate chains of a DP ≤40 by attacking not only outer chains but ...
Microstructural and rheological changes during gelatinisation are important indicators of starch functionality. A combined rheometer and optical microscope system (Rheoscope 1, Thermo Haake) was used to monitor the gelatinisation of different starches (maize starch containing 0%, 24%, 55% and 85% amylose; wheat starch and barley starch) suspended in a 0.1% guar solution (to minimise settling during the initial stages of gelatinisation). The 0.1% guar solution was selected after Rapid Visco Analyser, Modulated DSC and settling studies indicated that it minimised any effect on starch gelatinisation compared to carboxy methyl cellulose and xanthan. The Rheoscope study demonstrated that the viscosity of the starch during gelatinisation is related to changes in starch granules as a result of swelling. There was a two to threefold increase in starch granule size during the gelatinisation for all starches except for high amylose maize starches. Viscosity development during the gelatinisation was ...
With high,middle and low amylose content rice cultivars as material,influence of weak light during the initial period of young spike on grain-filling and quality in rice was studied.Grain-filling course was simulated by Richards equation.The results showed that,compared with the control, the maximum growth amount of grain(A),brown rice rate and milled rice rate decreased,the change of initial grain-filling potential(R_0),maximum grain-filling rate(G_max),mean grain-filling rate(G),head milled rice rate,chalky grains rate,amylose and protein contents were different in the 3 varieties.Brown rice rate and milled rice rate were significantly and very significantly positively correlated with A.Amylose content and head rice rate were significantly and very significantly negatively correlated with R_0,G_max and G. Chalky grains rate was significantly and very significantly positively correlated with R_0,G_max and G.In order to release the damage of weak light to rice quality,measures for breeding,growth
Starches from different botanical origin (sago, rice, wheat, corn, sweet potato, arrowroot, and potato as well as sweet potato meal, cassava pulp, and tapioca) with varying total starch (TS) and amylose content were assessed for hydrolysis in vitro by gastric enzymes and their starch fractions were characterized as rapidly digestible starch (RDS), slowly digestible starch (SDS), and resistant starch (RS). The relationship between starch hydrolysis (SH) and organic matter digestibility, as well as total variability among TS, amylose content, RDS, SDS, and RS fractions of these test starches were also studied. SH varied significantly ranging from 9.8% in potato starch to 85.5% in sago starch with organic matter digestibility (OMD) of 22.36 and 95.04%, respectively. Significantly positive relationships were also recorded between SH and OMD, SDS, RDS and a significantly negative relationship with RS. Prediction equations were proposed to estimate SH from OMD and TS, and the correlation between ...
Of the 22 species within the Oryza genus, only two, O. sativa and O. glaberrima, have been domesticated. Although food security is supported by accessing wild Oryza resources for new genes and alleles which enhance plant performance, wild Oryza grain properties have not been extensively studied. Evaluation of the grain physico-chemical properties of eight wild Oryza species found amylose content, amylopectin structure and cooking properties fell within a narrow range relative to cultivated rice. The amylopectin of the wild species had a lower proportion of short branch chains (DP 6-14) relative to cultivated rice and were all of high apparent amylose content and gelatinization temperature. The grain of the wild species did not elongate to the same extent as the cultivated rice and had lower viscosity parameters. These results highlight how significant physio-chemical changes have been made by human selection in the domestication of rice, especially japonica rice. The wild species may be useful for
TY - JOUR. T1 - Differential scanning calorimetry. T2 - Gelatinisation of sago starch in the presence of sucrose and sodium chloride. AU - Abd. Ghani, Ma`Aruf. AU - Che Man, Yaakob B.. AU - Ali, Asbi B.. AU - Mat Hashim, Dzulkifly B.. PY - 1999. Y1 - 1999. N2 - The effect of sucrose and sodium chloride (NaCl) on sago starch gelatinisation was investigated by differential scanning calorimetry (DSC). The gelatinisation of starch in the presence of low levels of water and high levels of sucrose was studied. The gelatinisation temperature was found to increase in the presence of sucrose, whereas the gelatinisation enthalpy was unaffected. The gelatinisation temperature range was not as broad in the presence of sucrose as without sucrose. Furthermore, the shape of the gelatinisation endotherm was changed by the addition of sucrose. The double endotherm obtained in limited water-starch systems was changed into a single endotherm, similar to the endotherm obtained in excess water-starch systems at ...
Ratio of Amylose and Amylopectin as indicators of glycaemic index and in vitro enzymatic hydrolysis of starches of long, medium and short grain rice
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Tensides or surfactants are amphiphilic organic compounds that consist of both hydrophobic and hydrophilic parts. Tenzides are used in food industry (bakery), pharmaceutical industry, chemical industry, etc. Amylose is an essential unbranched form of starch. It is composed of glucose units which are linked with α-1,4- glucosidic bounds creating a spiral chain in shape of a helix. Potentiometric titration of amylose (0; 0.1; 0.5; 1; 2 and 4%) with octadecyl-trimethyl ammonium bromide (4 x 10-3 moldm-3) was followed by the formation of inclusion complex by changing the critical micellar concentration. In amylose OTAB complex formation mechanism fatty hydrocarbon chain cationic surfactants OTAB enters the amylose helix. The electrodes that were used during the experiment were silver/silver chloride (Metrohm) as the reference electrode and surfactant-sensitive electrodes with plasticized PVC membrane ...
Starchy foods Unlike sugary foods, the type of starch contained in a food is not as strong a predictor of its GI for a variety of reasons. There are two main types of starch - amylose and amylopectin, with amylose having a lower GI than amylopectin. So a food with more amylose may have a lower GI than one higher in amylopectin, but this is not always the case. This is partly because the starches in unrefined grains like hulled barley, brown rice or wheat berries are encapsulated by the germ and bran, which when left intact can make the starch - regardless of type - very hard to digest. Of course, this is why we process them to provide us with more digestible forms (e.g. pearl barley, white rice and bulgur) or into flour. We have found that the milling method (e.g., stone grinding versus modern steel roller milling) generally has a more significant effect on the ultimate GI of grain foods. Traditionally stone ground flours retain much more of the germ and bran and have more coarsely ground ...
The chitosan-starch (high amylose) blend film (1;1), via microfluidization, was prepared by casting with different glycerol concentration (0%, 2.5%, 5% and 10%). The films were characterized for their mechanical, thermal and morphological properties. The addition of glycerol at 5% (w/w) and higher concentrations resulted in decrease in tensile strength, increase in elongation at break due to plasticization. The wellknown antiplasticization was observed in the polymer films with 2.5% of glycerol. The addition of glycerol promoted the interactions among chitosan, starch and glycerol through hydrogen bonding as reflected on the shifting of main peaks of the glycerol-free film to higher wavenumbers as shown by FTIR spectra. The decrease in intensity of glycerol-related peaks in starch-chitosan-glycerol films in both 1H NMR and 13C NMR spectra proved the strong interactions (decrease in glycerol mobility) occurring among starch, chitosan and glycerol in glycerol-plasticized films. © 2012 Elsevier ...
Glucose units are linked in a linear way with α(1→4) glycosidic bonds. Branching takes place with α(1→6) bonds occurring every 24 to 30 glucose units, resulting in a soluble molecule that can be quickly degraded as it has many end points onto which enzymes can attach. In contrast, amylose contains very few α(1→6) bonds, or even none at all. This causes amylose to be hydrolyzed more slowly, but have higher density and be insoluble.[clarification needed]. Its counterpart in animals is glycogen, which has the same composition and structure, but with more extensive branching that occurs every eight to 12 glucose units. Plants store starch within specialized organelles called amyloplasts. When energy is needed for cell work, the plant hydrolyzes the starch, releasing the glucose subunits. Humans and other animals that eat plant foods also use amylase, an enzyme that assists in breaking down amylopectin. Starch is made of about 70% amylopectin by weight, though it varies depending on the ...
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The objective of this study was to investigate the physicochemical properties of starch isolated from transgenic corn (Ajeeb YG) and its near isogenic (Ajeeb). The amylose content was significantly differed, also there are some significant differences in the physicochemical properties between the investigated samples. These include water absorption capacity, solubility index and viscosity. Scanning electron microscopy revealed that both corn starch samples had intact granular and multi-angular shapes with an average diameter of about 12.8 m. The samples showed native X-Ray diffraction pattern of the A-type starch. Relative crystallinity for isogenic and transgenic corn starch samples was 16.75 and 19.5%, respectively. The result of DSC analysis showed that there are some differences in the transition temperatures, the gelatinization temperature, enthalpies of gelatinization and peak height indices. Also, the data revealed some differences between the isogenic and transgenic corn starch samples ...
The objective of this study was to investigate the physicochemical properties of starch isolated from transgenic corn (Ajeeb YG) and its near isogenic (Ajeeb). The amylose content was significantly differed, also there are some significant differences in the physicochemical properties between the investigated samples. These include water absorption capacity, solubility index and viscosity. Scanning electron microscopy revealed that both corn starch samples had intact granular and multi-angular shapes with an average diameter of about 12.8 m. The samples showed native X-Ray diffraction pattern of the A-type starch. Relative crystallinity for isogenic and transgenic corn starch samples was 16.75 and 19.5%, respectively. The result of DSC analysis showed that there are some differences in the transition temperatures, the gelatinization temperature, enthalpies of gelatinization and peak height indices. Also, the data revealed some differences between the isogenic and transgenic corn starch samples ...
Starch is the most abundant storage glucan composed of two main structural components, amylose and amylopectin. Based on the rate of digestion, starch can be classified as rapidly digestible starch (RDS), slowly digestible starch (SDS), and resistant starch (RS) (Shi and Maningat 2013). In recent years, the effect of RS has drawn increasing interests in that it is not digested in the upper gastrointestinal tract, but is fermented in the large intestine and is beneficial for the gut environment (Lafiandra et al. 2014). Our recent research has shown that the applications of RS in foods can moderate the glycemic response and maintain a proper microorganism profile in the human gut (Zhou et al. 2013a, b). It has also been found that RS with a slow absorption and a low glycemic index can reduce blood lipids and improve insulin sensitivity, which can improve the glucose intolerance and insulin resistance (Goda et al. 2014). Previous studies have also shown that RS can reduce cholesterol and ...
Figure 1. Model of bread staling. In fresh bread, amylose and amylopectin exist in amorphous or gelled forms. During storage, moisture is lost, the amylose and
Genotype had a significant effect on protein and starch concentrations in pea and fababean, on pasting, trough, cooling and final viscosities of starch from pea and fababean, and on onset and peak temperatures of gelatinization of starch from fababean. Significant genotype x environment interactions were observed for the concentrations of starch in pea and fababean, the concentration of amylose, endothermic enthalpy and trough viscosity in starch from fababean, and pasting viscosities of starch from pea. The effects of genotype and environment on the physicochemical characteristics of starch from pea and fababean grown in western Canada would likely not be of practical significance. Native, heat-moisture-treated and pregelatinized blends of pea starch and starch from corn, waxy corn, high-amylose corn or potato exhibited a variety of functionalities due to differences in the functionalities of the constituent starches and to the effects of heat-moisture treatment and pregelatinization. Compared ...
Results of a new clinical trial conducted using HI-MAIZ high amylose resistant starch from Ingredion Incorporated found that the ingredient may improve insulin sensitivity in women. The study was conducted by Barbara Gower, PhD, in the Department of
The genetically modified potato line show a shift of the tuber starch composition to amylose. No difference regarding persistence in agricultural habitats or invasiveness in natural habitats compared to conventional potato varieties is expected. Nor is it expected that a selective advantage or disadvantage is conferred to the GM lines via the introduced traits. Due to the measures to be taken during the release (distance to or absence of cultivated and wild relatives) will the potential for gene transfer virtually be excluded. Interactions of the GM potato lines with non-target species and resulting effects will be comparable to those of conventional potato varieties. No toxic or allergenic effects are expected from elevated levels of amylose, nor from the nptII gene. Measures in place under current field trial practice will safeguard that all tubers and plant material is properly managed, harvested, stored, transported or disposed of to minimize contact to humans or animals. No effects are ...
DISCUSSION. Dietary nutritional requirements of two species of penaeoids were investigated on the basis of their haemolymph metabolic contents and the apparent digestibility analysis to determine which the dietary components that were better assimilated are. The penaeoids shrimp do not present a dietary glucose requirement since this compound can come from the gluconeogenesis from the amino acids. Nevertheless, these organisms own a complete enzymatic structure for the digestion of proteins and polysaccharides, such as starch, glycogen, laminarin, and chitin that are natural components of their diet. (Tacon, 1990). The starch is a straight-chain consisting of glucose molecules linked together by a (1-4) bonds, conformed by two units amylose and amylopectin. The starches rich in amylose are poorly digestible because a-amylase cannot hydrolyze the amylase, in contrast, the starch rich in amylopectin is relatively well digested (Gaxiola et al., 2006). The cellulose is also a polymer of glucose but ...
There are two types of starch: amylose and amylopectin. Amylose is constructed with 1-4 linkage, but amylopectin is mixed of 1-4 and 1-6 linkage. Amylase can breakdown 1-4 linkage into maltose. However, it cannot breakdown 1-4 linkage. Dextrin is a disaccharide that composed of 1-6 linkage, which broke down from starch. To digest this, dextrinase is used ...
There is growing interest in the research of resistant starches. Most of the carbohydrates in the diet are starches, which are long chains of glucose found in many foods. Not all of the starch we eat gets digested. During the digestive process, some of the starch doesnt get processed because it is resistant to digestion.. This is exciting news because until now, carbohydrates was shunned, leaving many of us hungry and cranky in an effort to watch our weight and health. However, foods that are rich in resistant starches act similar to soluble fiber and help solve many digestive problems. They do not cause spikes in blood glucose or insulin after being eaten and they provide substantially fewer calories. Research has found that resistant starch can trigger hormonal response that makes us feel more satisfied, lowers blood sugar levels, improves colon health and lowers the risk of cancer. There are 4 different types of resistant starch.. Type 1 is found in oats, barley, grains, seeds and legumes ...
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The latest diet craze to hit the market is one that swings the food pendulum in the exact opposite direction from the recent Adkins-inspired, no-carb craze. The Carb Lovers Diet encourages readers to eat carbohydrates, specifically foods rich in resistant starch. Resistant Starch is considered a weight-loss powerhouse because it does not get absorbed into the bloodstream or broken down into glucose. According to Prevention magazine, the leading the way with this high carb diet revolution, Resistant starch is a type of dietary fiber naturally found in many carbohydrate-rich foods. … It gets its name because it resists digestion in the body, and though this is true of many types of fiber, what makes resistant starch so special is the powerful impact it has on weight loss and overall health. In support of the diet is this weeks delcartionnd this week nutritionists have declared that far from being a food to avoid, bread is positively beneficial. Its full of essential nutrients, -vitamins ...
Hello I have been following this thread for awhile. I also started the Resistant Starch because I am open to anything that comes in regards to this disease. I was diagnosed 4 years ago with RA and put on plaquenil immediately and decided on that till it got worse and then Sulfasalazine was added and recently started Enbrel, through there Safety Net foundation. Its been 8 weeks and although no side effects it hasnt helped in relieving pain. So what I was wondering Scott007, do you think that the resistant starch would help me even though I have never had inflammation. I get tested every month, Crp and Esr and always very low. I keep reading about everyone having inflammation and the resistant starch helping for that in general. I have been trying the resistant starch now for 2 months, yes am very gassy but I havent seen an improvement as of yet. Im interested in your opinion. When I was first diagnosed my RF was 57 and now its normal but my anti-ccp is 250 which the Rheumatologist claims that ...
A study to obtain information on genetic variability and inter-relationship of grain yield and associated characters under rainfed upland conditions was carried out using 44 diverse genotypes. The analysis of variance revealed the significant differences among the genotypes for all the traits indicating presence of sufficient variability among the genotypes for various traits. High estimate of genotypic and phenotypic coefficient of variation were observed for number of grains per panicle, grain yield per plant, straw yield per plant and harvest index indicated wider genetic variation for these traits.. High value of heritability coupled with high expected genetic advance as per cent of mean were observed for the characters number of grains per panicle, grain yield per plant, straw yield per plant, harvest index, 1000-grain weight, grain L/B ratio and amylose content indicated that selection may be effective for this character. The results of correlation studies indicated that genotypic ...
Physically modified extruded flours are suitable ingredients for cold preparation of products such as creams and sauces. The rheological and textural properties and stability of model sauces prepared with wheat and rice extruded flours with three different particle size fractions were assessed. All tested sauces showed non-Newtonian, shear-thinning and thixotropic fluid characteristics. Sauces made with rice extruded flours, with lower protein and amylose contents, presented lower shear-thinning behaviour, consistency index and yield stress than wheat based sauces. Rice sauces also displayed a less compact microstructure and lower viscoelastic character but a higher resistance to freeze-thaw process. Regarding particle size, the finest flours showed lower values of consistency index, yield stress, and G and G moduli but led to higher syneresis. Overall, results proved that pregelatinised extruded flours can be used in sauces applications without heating, but their properties greatly depend on ...
Vitamins and medications may one day take rides on starch compounds creating stable vitamin-enriched ingredients and cheaper controlled-release drugs, according to Penn State food scientists.. The technique may offer drug and food companies a less expensive, more environmentally friendly alternative in creating, among other products, medications and food supplements.. In a series of experiments, researchers formed pockets with corn starch and a fatty acid ester to carry oil soluble vitamins, such as vitamin A and vitamin C, into the body, according to Gregory Ziegler, professor, food sciences.. Heat and acids can harm or destroy vitamins. The starch molecule forms a protective pocket around the vitamins as they travel through the highly acidic stomach and into the small intestines, where they can be absorbed into the blood stream.. To form the pocket, the researchers, who released their findings in a recent issue of Carbohydrate Polymers, used a type of corn starch called high amylose maize ...
Since cancer cells depend on glucose more than normal cells, we compared the effects of low carbohydrate (CHO) diets to a Western diet on the growth rate of tumors in mice. To avoid caloric restriction-induced effects, we designed the low CHO diets isocaloric with the Western diet by increasing protein rather than fat levels because of the reported tumor-promoting effects of high fat and the immune-stimulating effects of high protein. We found that both murine and human carcinomas grew slower in mice on diets containing low amylose CHO and high protein compared with a Western diet characterized by relatively high CHO and low protein. There was no weight difference between the tumor-bearing mice on the low CHO or Western diets.. Additionally, the low CHO-fed mice exhibited lower blood glucose, insulin, and lactate levels. Additive antitumor effects with the low CHO diets were observed with the mTOR inhibitor CCI-779 and especially with the COX-2 inhibitor Celebrex, a potent anti-inflammatory ...
The present disclosure relates to compositions consisting essentially of starch and lecithin. The disclosure also relates to processes for preparing the compositions consisting essentially of a starch
Resistant starch is a type of starch that is healthy for the human body. It does not get dissolved in the small intestine and hence acts as a dietary fiber when it reaches the large intestine. Food items with natural resistant starch help manage blood sugar levels.
BPD is known to induce a greater weight loss than LAGB, independently of initial BMI; this information comes from a meta-analysis [25] and from two comparative studies [27, 28]. This finding was confirmed in the present study. Surgery was clearly more effective than control treatment, as already reported in the only study including control patients [21]. The pattern of BMI depicted in Figure 1 indicates that our findings were representative of what happens with the two surgical procedures. In agreement with two small studies [27, 28], the effect on metabolic variables, and the disappearance of diabetes mellitus (patients were treated with metformin, when required) were not different for the 2 procedures. Also disappearance of metabolic syndrome was not different. As to metabolic effects, the only difference was in cholesterol decrease, which appears more due to the technique than to amount of weight loss. We have other data [39] showing that another malabsorptive technique ...
Tim-you make some interesting points, but I think your slant on pharma is overly paranoid (and I sure would want such things as fecal transplants regulated if I were going to have one!). At least with pharmaceutical products, they have to demonstrate safety and efficacy-two things that are never proven with supplements because they are not regulated in the same way, and supplement manufacturers and food manufacturers routinely make claims (along with disclaimers about the claims) without proving efficacy. You are leading the effort to measure amounts of resistant starch, which is terrific, but I would like to see more proof (like clinical trials) showing how resistant starch helps improve specific disease conditions, and I imagine that needs to happen before drug companies will be really interested. I can find studies on PubMed, usually claiming benefits in terms of weight loss, insulin resistance, and colon health, but they seem to be similar to benefits conferred by eating a high-fiber diet. ...
Tim-you make some interesting points, but I think your slant on pharma is overly paranoid (and I sure would want such things as fecal transplants regulated if I were going to have one!). At least with pharmaceutical products, they have to demonstrate safety and efficacy-two things that are never proven with supplements because they are not regulated in the same way, and supplement manufacturers and food manufacturers routinely make claims (along with disclaimers about the claims) without proving efficacy. You are leading the effort to measure amounts of resistant starch, which is terrific, but I would like to see more proof (like clinical trials) showing how resistant starch helps improve specific disease conditions, and I imagine that needs to happen before drug companies will be really interested. I can find studies on PubMed, usually claiming benefits in terms of weight loss, insulin resistance, and colon health, but they seem to be similar to benefits conferred by eating a high-fiber diet. ...
Carb Lovers Diet - Lose weight with Resistant Starch. Get the thing to lose weight by this diet plan and the steps involved in that. Resistant starch boosts
Medical Xpress Article: Eating resistant starch may help reduce red meat-related colorectal cancer risk Eating resistant starch may help reduce red...
Specifically, we wish to examine the glycemic response of barley tortillas containing different ratios of amylose and amylopectin and different amounts of soluble and insoluble fibre with an appropriate control during acute phase testing in healthy volunteers. Possible relationships between composition of the barley tortillas and the degree of physiological response will also be investigated as the secondary objective ...
reagents in iron ores flotation - sciencedirect corn starch has been in in brazil since 1978. the trade name of the reagent was collamil, consisting of a very fine and very pure product. the amylose plus amylopectin content reached 98% to 99%, dry basis, the balance being represented by minor contents of fibres, mineral matter, oil and proteins.. Get Price ...
A polysaccharide coated chiral stationary phase and columns which are produced using a unique production process of coating the proven chiral selector, tris-(3,5-di- methylphenyl) carbamoyl amylose on high purity silica gel. ChromegaChiral CCA columns, similar in selectivity to ChiralPak® AD, are available in 3, 5, 10, and 20 micron particle sizes enabling easy scale up from analytical to preparative scale using HPLC or SFC conditions.
glucose, Amylase, Aspirin, Chlorophyll, fructose, Taxol, nucleic acids, Insulin, amylopectin, structure, NAD, lysine, sucrose, phospholipids, glycogen, DNA, molecule, amylose, tyrosine, ATP, serine, amino acids, glutamic acid, lipids, RNA, glucosamine, isoleucine, asparagine, maltose, arginine, glutamine, glycine, Penicillin, cholesterol, Caffeine, tryptophan, leucine, phenylalanine, fatty acids, Disaccharides, ribose, Pepsinogen, glycerol, methionine, proline, Salicin, triglycerides, threonine, Collagen, cellulose, valine, Pepsin, deoxyribose, Myoglobin, histidine, cysteine, Capsaicin, proteins, lactose, diglycerides, Monosaccharides, 3-D image, bases, alanine, aspartic acid, Polysaccharides ...
Background: Due to their lower glycaemic index, leguminous seeds affect human carbohydrate metabolism lesser than do cereals. Problems, however, could arise from side effects, e.g., increasing flatule
A 100% natural ingredient used to thicken lotions in skincare. It absorbs excess oils in products leaving them non-greasy and easy to use. It is also softening to water when used in our bath products.. ...
... floridean starch has been described as lacking amylose. However, amylose has been identified as a component of floridean starch ... doi:10.1007/978-4-431-55495-0_4. ISBN 978-4-431-55494-3. McCracken, D. A.; Cain, J. R. (May 1981). "Amylose in Floridean Starch ... which use amylopectin and amylose. There is strong phylogenomic evidence that the Archaeplastida are monophyletic and originate ... a mixture of amylopectin and amylose) and glycogen: Historically, ...
... contains amylose - 28.3%, protein - 7.3%. It has comparable quality parameters like 77.1% hulling, 65% milling, 54.2 ... Cooked rice is tasty, good in texture, bright in appearance, non-sticky and friable due to high amylose content. ...
In contrast, amylose contains very few α(1→6) bonds, or even none at all. This causes amylose to be hydrolyzed more slowly, but ... "Amylose, Amylopectin (starch)". GMO Compass. Archived from the original on 2010-12-31. Retrieved 2011-02-07.. ... Amylopectin contains a larger number of Glucose units (2000 to 200,000) as compared to Amylose containing 200 to 1000 α-Glucose ... Waxy corn, a Chinese maize with almost all amylopectin and trace amounts of amylose, different from normal corn whose endosperm ...
GBSS which is linked to amylose synthesis. The others are SS1, SS2, SS3 and SS4. These have different roles in amylopectin ...
Cryptococcus anarcticus is able to produce amylose. This species is also able to assimilate L-lysine, nitrate and cadaverine as ...
Walker GJ, Whelan WJ (1959). "Synthesis of amylose by potato D-enzyme". Nature. 183 (4653): 46. Bibcode:1959Natur.183...46W. ... "Potato D-enzyme Catalyzes the Cyclization of Amylose to Produce Cycloamylose, a Novel Cyclic Glucan". Journal of Biological ...
doi:10.1016/S0008-6215(98)00079-2. Jenkins, P. J.; Donald, A.M. (1995). "The influence of amylose on starch granule structure ...
C. albidosimilis is DBB positive, and produces amylose. Fonseca A., Scorzeti G., and Fell J. (2000) Diversity in the yeast ...
The structure of these starchy coatings become rigid and porous when heated in oil; this is due to their high amylose content. ...
The unbranched form of starch is called amylose. The ultimate in branching is a completely crosslinked network such as found in ...
Gelatinization temperature is direct related to amylose contents; the higher the amylose the higher the gelatinization ... In terms of amylose rice can be classified as waxy 0-2%, very low 2-10%, low 10-20%, intermediate20-25% and high 25-32% (rice ... It is another important factors in rice quality, like other cereal rice is good sources of starch especially amylose. It is ... The two most important physiochemical properties of cooking quality of rice are amylose content and gelatinization temperature ...
Generally, high-amylose starch results in superior mechanical properties. However, high-amylose starch has less processiblity ... 1950s: Amylomaize (>50% amylose content corn) was successfully bred and commercial bioplastics applications started to be ... Liu, Hongsheng; Yu, Long; Xie, Fengwei; Chen, Ling (2006-08-15). "Gelatinization of cornstarch with different amylose/ ... The properties of starch bioplastic is largely influenced by amylose/amylopectin ratio. ...
... uses rice flour milled from kauk kyan (ကောက်ကြမ်း), which has a high amylose content. ရွှေရည်ဖြိုး (2019-05-16 ... "မုန့်ကျွဲသည်း". Food Magazine (in Burmese). Tun, Ye Yint (2006). "Diverse Utilization of Myanmar Rice with Varied Amylose ...
... amylose content, also called high amylose starch. The discovery of amylomaize occurred as a mutation in a normal inbred line; ... Corn Hybrids With High Amylose Starch: II. Results of Breeding Efforts". Agronomy Journal. 50 (10): 598-602. doi:10.2134/ ...
Amylose crystallization occurs much faster than crystallization of the amylopectin. The crystal melting temperature of amylose ... If the viscous solution is cooled or left at lower temperature for a long enough period, the linear molecules, amylose, and ... When native starch is heated and dissolved in water, the crystalline structure of amylose and amylopectin molecules is lost and ... Retrogradation is a reaction that takes place when the amylose and amylopectin chains in cooked, gelatinized starch realign ...
... amylose content. The table below summarizes the amylose and amylopectin content of different starches, waxy and nonwaxy: The ... Amylose and amylopectin are both components of starch and polysaccharides made from D-glucose units. The big difference between ... This rice is characterized by its low level of amylose starch, and is derived from short- or medium-grain japonica rices. The ... In mochi rice, the amylose content is negligible, and the amylopectin level is high, which results in its gel-like consistency ...
In addition, amylose chains can leak out as the granule swells. The viscosity of the solution increases as the temperature is ... Starch consists of amylose and amylopectin which affect the textural properties of manufactured foods. Cooked starches with ... This does not depend on the amylose or amylopectin content, but rather the structure of the granule protecting the starch. When ... Plants store starch in tightly packed granules, consisting of layers of amylose and amylopectin. The size and shape of the ...
Standard starch extracted from traditional potato varieties contains both amylose and amylopectin. Waxy potato starch, when ... Through traditional breeding techniques an amylose-free mutant was obtained without genetic manipulation. Since 2005 the first ...
It is a traditional Indian cultivar with intermediate amylose and gelatinization temperature. It is most common in Madhya ...
"Octenyl Succinic Anhydride Modified Early Indica Rice Starches Differing in Amylose Content". J. Agric. Food Chem. 54 (7): 2775 ...
Amylose, the linear component of the starch, is more susceptible to retrogradation. Certain sorghum varieties contain ... Its starch consists of 70 to 80% amylopectin, a branched-chain polymer of glucose, and 20 to 30% amylose, a straight-chain ...
... was the first lichen known to contain an amylose polysaccharide. This species is unusual, as the fungal ...
It has opaque grains, very low amylose content and is sticky when cooked. It is called glutinous (< Latin glūtinōsus) in the ...
The following molecular associations can occur: amylose-amylose, amylose-amylopectin, and amylopectin-amylopectin. A mild ... Due to strong associations of hydrogen bonding, longer amylose molecules (and starch which has a higher amylose content) will ... High amylose starches require more energy to break up bonds to gelatinize into starch molecules. Gelatinization improves the ... Heat causes such regions to become diffuse, the amylose chains begin to dissolve, to separate into an amorphous form and the ...
Starches include the plant starches amylose and amylopectin and glycogen in animal cells. Lugol's solution will not detect ...
Lichenin is identical chemically to amylose from starch grains, although it differs physically. The properties of lichenin ...
The fusion protein binds to amylose columns while all other proteins flow through. The MBP-protein fusion can be purified by ... as an affinity handle for the purification of foreign proteins and peptides by affinity chromatography on cross-linked amylose ...
Several chemical compounds were found including, flavones, phenolic compounds amylose and organic acid. The salt tolerance and ...
It is known for its nonstick properties due to its high amylose content. It is short grained with a pearly white color and a ...
It is also used in amylose magnetic beads and resin to separate maltose-binding protein High-amylose varieties of rice, the ... Excellent film forming behavior of amylose was studied already in 1950s. Amylose films are better for both barrier properties ... Chung, Hyun-Jung; Liu, Qiang (2009). "Impact of molecular structure of amylopectin and amylose on amylose chain association ... Amflora, genetically modified low amylose potato (high in amylopectin) Amylomaize, high amylose maize starch Russet Burbank ...
... which is involved in amylose synthesis in plants. Although common wheat ( Triticum aestivumL.) has... ... The Waxy (Wx) protein has been identified as granule-bound starch synthase (GBSS; EC 24.1.21), which is involved in amylose ... Both mutants showed loss of Wx protein and amylose. This is the first demonstration of genetic modification of wheat starch. ... Isolation of an amylose-free starch mutant of the potato (Solanum tuberosum L.). Theor Appl Genet 75:217-221Google Scholar ...
amylose synonyms, amylose pronunciation, amylose translation, English dictionary definition of amylose. n. A linear, unbranched ... Amylose lipid complexes (ALCs) exist naturally in cereal starches.. Amylose lipid nanomaterials find use as fat replacers ... Amylose - definition of amylose by The Free Dictionary https://www.thefreedictionary.com/amylose ... amylose. Also found in: Medical, Encyclopedia, Wikipedia. am·y·lose. (ăm′ə-lōs′, -lōz′). n.. A linear, unbranched ...
This chapter provides the diffusion coefficient of cyclohepta-amylose in water at different concentrations measured using ... Winkelmann J. (2018) Diffusion coefficient of cyclohepta-amylose in water. In: Lechner M.D. (eds) Diffusion in Gases, Liquids ... This chapter provides the diffusion coefficient of cyclohepta-amylose in water at different concentrations measured using ...
Amylose: A linear α-D-glucopyranose biopolymer containing ~300 to 3000 glucose molecules (but it can have many thousands). ...
If amylopectin is low and amylose high, as in long grain rice (found in grocery stores and super markets), each cooked rice ... The various types of rice behave differently when cooked mainly because of variations in the ratio of the starches (amylose, ...
Experimental: 70% amylose bread Mixed meal with 80g of available carbohydrates coming mainly from high-amylose bread (made with ... Experimental: 85% amylose bread Mixed meal with 80g of available carbohydrates coming mainly from high-amylose bread (made with ... The amylose-amylopectin ratio influences starch properties. A higher amylose content is associated with slower starch digestion ... Metabolic Effects of High-amylose Wheat-based Breads. The safety and scientific validity of this study is the responsibility of ...
FAQ: Can I perform a batch purification using the amylose resin?. Yes, batch purification works well, although it is difficult ... Home FAQs Can I perform a batch purification using the amylose resin? ...
The mechanical properties of the films under tensile mode also depended on the self-assembled morphologies of the amylose- ... The films were obtained by drying aqueous alkaline solutions of the amylose-grafted NaCMCs. The scanning electron microscopy ( ... the fibers partially merged with each other at the interfacial area owing to the double helix formation between the amylose- ... 1-phosphate from the nonreducing ends of the primer chains on the products was conducted to produce the prescribed amylose- ...
The effects of type 2 resistant starch from high-amylose maize (HAM-RS2) in rodents fed with low-fat diets were demonstrated in ... High fat diet partially attenuates fermentation responses in rats fed resistant starch from high-amylose maize.. Charrier JA1, ... High Fat Diet Partially Attenuates Fermentation Responses in Rats Fed Resistant Starch from High-Amylose Maize ... High Fat Diet Partially Attenuates Fermentation Responses in Rats Fed Resistant Starch from High-Amylose Maize ...
... amylose explanation free. What is amylose? Meaning of amylose medical term. What does amylose mean? ... Looking for online definition of amylose in the Medical Dictionary? ... amylose. Also found in: Dictionary, Encyclopedia, Wikipedia. amylose. [am´ĭ-lōs] 1. any carbohydrate other than a glucose or ... amylose. a carbohydrate polymer composed of unbranched chains of GLUCOSE units. See STARCH.. amylose. 1. polysaccharide of d- ...
Amylose is a well-known polysaccharide and forms inclusion complexes with various hydrophobic small molecules. Pure amylose is ... We determined that a propagating chain of amylose during enzymatic polymerization wraps around hydrophobic polymers present in ... review presents our researches on the preparation and material application of inclusion complexes that comprises an amylose ... Amylose is a well-known polysaccharide and forms inclusion complexes with various hydrophobic small molecules. Pure amylose is ...
Keywords: thrombin, nanoparticles, amylose derivative, complexation, stability, hemostatic activity ... in which a water-soluble cationic amylose derivative containing poly(l-lysine) dendrons was prepared by a click reaction and ... Nanocomplexation of thrombin with cationic amylose derivative for improved stability and hemostatic efficacy Baoxiong Zhuang,1 ... Nanocomplexation of thrombin with cationic amylose derivative for improved stability and hemostatic efficacy. ...
Amylose protein Illinois EPA list. Keith list. Colborn list. Benbrook list. Danish Inert list. EU list. Not Listed. Not Listed ... Amylose protein WHO Acute Hazard. TRI Acute Hazard. Material Safety Data Sheets. Acute rating from U.S. EPA product label. U.S ... Amylose protein CA Prop 65 Developmental Toxin. U.S. TRI Developmental Toxin. CA Prop 65 Female Reproductive Toxin. CA Prop 65 ... Amylose protein IARC Carcinogens. U.S. NTP Carcinogens. California Prop 65 Known Carcinogens. U.S. EPA Carcinogens. TRI ...
... with a low content of amylose to gain molecular insight into how a deficiency of amylose affects carbon allocation to other end ... B) Content of total starch and amylose was determined as Sun et al. []. 1No significant difference of total starch content ... Carbohydrate analysis indicated that the content of amylose in GM077 seeds was significantly reduced, while that of amylopectin ... Molecular insights into how a deficiency of amylose affects carbon allocation--carbohydrate and oil analyses and gene ...
In this paper we describe the generation of very-high-amylose potato starch by genetic modification. We achieved this by simul ... However, very few high-amylose crop varieties are commercially available. ... High-amylose starch is in great demand by the starch industry for its unique functional properties. ... Production of very-high-amylose potato starch by inhibition of SBE A and B Nat Biotechnol. 2000 May;18(5):551-4. doi: 10.1038/ ...
... - Mar 20, 2019 - ... The new Lux i-Amylose-3 media is available in two particle sizes: 3 µm and 5 µm. The Lux 3 µm i-Amylose-3 is ideal for LC/SFC ... "Our new i-Amylose-3 chiral selector, Amylose tris(3-chloro-5-methylphenylcarbamate), has complementary but distinct ... New Lux i-Amylose-3 Immobilized Chiral Media Allows Scientists to Keep Samples Dissolved in Strong Solvents. Phenomenex Inc. ...
Amylose recognition and ring-size determination of amylomaltase Message Subject. (Your Name) has forwarded a page to you from ... Amylose recognition and ring-size determination of amylomaltase. By Christian Roth, Nicole Weizenmann, Nicola Bexten, Wolfram ... Amylose recognition and ring-size determination of amylomaltase. By Christian Roth, Nicole Weizenmann, Nicola Bexten, Wolfram ...
Experimental: Bread with 10% amylose content Bread with 10% amylose content. Dietary Supplement: 10% amylose bread 10% amylose ... Other: 20% amylose bread Dietary Supplement: 10% amylose bread Dietary Supplement: Carbohydrates ... To compare the glycemic index of breads made with different amylose content. (S1 to S6) A total of 6 visits. In each visit, ... NOMAC : New Tools for Managing the Fate of Cereal Nutrients in the Gut : Effects of Amylose Content on Glycemic Index. (NOMAC) ...
Other polymers such as amylose-b-PTHFb- amylose and three-arm PTHF-b-amylose were synthesized and are also expected to act as ... the V 6II -amylose which indicates the presence of guest PTHF in between the amylose helices was observed in PTHF-bamylose. ... demonstrates that the complexed amylose is in the form of V-amylose with 6 glucose residues per helix turn (V 6 - amylose), ... Amylose is a linear polysaccharide having α -(1 -, 4)-glycosidic linkages. The single helical V-amylose has a hydrophobic ...
Column used: Lux® 5 µm i-Amylose-3, LC Column 250 x 4.6 mm, Ea Part#: 00G-4779-E0 ... Column: Lux® 5 µm i-Amylose-3, LC Column 250 x 4.6 mm, Ea ...
Column used: Lux® 5 µm Amylose-2, LC Column 250 x 4.6 mm, Ea Part#: 00G-4472-E0 ... SecurityGuard Cartridges, Lux Amylose-2, 4 x 3.0mm ID, 10/Pk Part No.: AJ0-8470. - Holder Part No.: KJ0-4282 ... Column: Lux® 5 µm Amylose-2, LC Column 250 x 4.6 mm, Ea ... Betaxolol on Lux 5µm Amylose-2 in NP. ...
A high-amylose GM potato line and its parent were grown under field and greenhouse conditions for one growing season in Sweden ... In the field, the fresh tuber yield was 40% greater in the high-amylose line as compared with its parent; the greater fresh ... In the field, the fresh tuber yield was 40% greater in the high-amylose line as compared with its parent; the greater fresh ... However, starch productivity per unit land area or soil N still is expected to be higher in the high-amylose line. ...
Amylose In Relation To Diabetes: Amylose is a molecule that is found in starch. While most people who have not been science ... As studies show that an ongoing diet which contains foods that are rich in Amylose can be beneficial to a diabetic, this is ... While foods which are rich in Amylose can be beneficial in causing long term stabilization of blood sugar, some diabetics may ... Simply finding out which foods Amylose is present in, and attempting to adjust your everyday diet accordingly, can be greatly ...
Amylose makes up approximately 10 to 30% (w/w) of all natural starches thus far examined… ... Starch granules contain two glucose polymers, amylopectin and amylose. Amylose makes up approximately 10 to 30% (w/w) of all ... Natural polymorphisms in Arabidopsis result in wide variation or loss of the amylose component of starch. 6th November 2019 ... Since the function and adaptive significance of amylose are unknown, we asked whether there is natural genetic variation in ...
Isolation and characterization of high-molecular-weight amylose by dispersion of starch granules with urea N B Patil ; N B ... N B Patil, N R Kale; Isolation and characterization of high-molecular-weight amylose by dispersion of starch granules with urea ...
The amylose-lipid complexes has nano-structure dimensions and can be used a fat replacer in foodstuffs. ... The invention provides a method for the manufacture of amylose-lipid complexes The method includes the steps of pasting a ... EN) AMYLOSE-LIPID COMPLEXES. (FR) COMPLEXES AMYLOSE-LIPIDE. Abstract: (EN) The invention provides a method for the manufacture ... The amylose-lipid complexes has nano-structure dimensions and can be used a fat replacer in foodstuffs.. (FR) Linvention ...
... Nutr ... Background: We investigated in rats the effects of feeding different forms of high amylose maize starches (HAMS) rich in ...
Fingerprint Dive into the research topics of Amylose crystallization from concentrated aqueous solution. Together they form a ...
Starch structure and degree of starch hydrolysis of small and large starch granules from barley varieties with varying amylose ... Starch structure and degree of starch hydrolysis of small and large starch granules from barley varieties with varying amylose ... Starch structure and degree of starch hydrolysis of small and large starch granules from barley varieties with varying amylose ... 12 barley cultivars with varying amylose content, and purified starch from the same cultivars, (low, normal, high) was ...
  • Amylose lipid complexes (ALCs) exist naturally in cereal starches. (thefreedictionary.com)
  • Normal, high-molecular-weight amylopectin was absent, whereas the amylose content was increased to levels comparable to the highest commercially available maize starches. (nih.gov)
  • Amylose makes up approximately 10 to 30% (w/w) of all natural starches thus far examined, but mutants of crop and model plants that produce amylose-free starch are generally indistinguishable from their wild-type counterparts with respect to growth, starch content, and granule morphology. (jic.ac.uk)
  • We investigated in rats the effects of feeding different forms of high amylose maize starches (HAMS) rich in resistant starch (RS) to understand what the implications of RS heterogeneity might be for colonic biology, including innate cellular responses to DNA-damage. (nih.gov)
  • Five gelatinized jackfruit starches (GJFSS: M1′, M5′, M6′, M11′, and BD′) were prepared using amylose mixed with five types of amylopectin. (usda.gov)
  • There are two types of starches: amylose and amylopectin. (prezi.com)
  • Our product range includes a wide range of high amylose maize starch, high amylase maize starch, amylose corn starch, maize starch and maize starch for food. (sheekharr.in)
  • We are one the leading manufacturers of High Amylose Maize Starch . (sheekharr.in)
  • Offering you a complete choice of products which include high amylose corn starch and amylose maize starch. (sheekharr.in)
  • We are one of the reputed manufacturers, suppliers and exporters of Amylose Maize Starch . (sheekharr.in)
  • Starch is a polymer of glucose molecules and consists of two kinds of polymers -- amylose which is a straight chain, and amylopectin, which is branched. (thefreedictionary.com)
  • We determined that a propagating chain of amylose during enzymatic polymerization wraps around hydrophobic polymers present in the reaction system to form inclusion complexes. (mdpi.com)
  • The enzymatically produced amyloses induced complexation with the guest polymers in the intermolecular graft copolymers, which acted as cross-linking points to form supramolecular hydrogels. (mdpi.com)
  • The single helical V-amylose has a hydrophobic cavity that enables it to include guest polymers such as polytetrahydrofuran (PTHF). (rug.nl)
  • Other polymers such as amylose- b -PTHF b - amylose and three-arm PTHF- b -amylose were synthesized and are also expected to act as host molecules. (rug.nl)
  • Starch granules contain two glucose polymers, amylopectin and amylose. (jic.ac.uk)
  • Reserve starch is accumulated in the amyloplast organelles and is composed of two different glucosidic polymers, amylose and amylopectin. (biomedcentral.com)
  • Another useful type of chiral stationary phase for amino acids and their derivatives is based on the polymers of cellulose and amylose. (civilengineeringhandbook.tk)
  • It was realized that a reversal of this procedure, the removal of glucose, should increase the length of the polymers and might ultimately result in the synthesis from a small maltodextrin molecule of an iodine-staining, amylose-like polysaccharide. (elsevier.com)
  • We have published an article in Carbohydrate Polymers about the structure of an inclusion compound prepared by crystallizing amylose in the presence of ibuprofen, a well-known anti-inflammatory drug. (cnrs.fr)
  • It is composed of two glucose polymers, called amylose and amylopectin, which share the same basic glucan structure but differ in length and degree of branching. (hindawi.com)
  • Our new i-Amylose-3 chiral selector, Amylose tris(3-chloro-5-methylphenylcarbamate), has complementary but distinct enantioselectivity in comparison to the Lux i-Amylose-1 and i-Cellulose-5 chiral selectors," explains Ryan Splitstone, Product Marketing Manager for Phenomenex. (thomasnet.com)
  • It combines the 5-position methyl group of the i-Amylose-1 chiral selector with the electron-withdrawing potential of the 3-position chlorine group of the i-Cellulose-5. (thomasnet.com)
  • The derivatized cellulose or amylose polymer is coated (not bonded) to a silica support. (civilengineeringhandbook.tk)
  • Both cellulose and amylose contain five chiral centres per unit and thus the polymeric material offers a large number of chirally interactive centres and high probability of interaction. (civilengineeringhandbook.tk)
  • There are basically two common types of cellulose and amylose derivatives that are used as stationary phases. (civilengineeringhandbook.tk)
  • The most useful cellulose- and amylose-based chiral stationary phases are probably those derivatized with the different substituted tris(3,5-dimethylphenylcarbamates). (civilengineeringhandbook.tk)
  • What are the differences between amylose and cellulose? (reference.com)
  • Floridean starch is often described in contrast to starch (a mixture of amylopectin and amylose) and glycogen: Historically, floridean starch has been described as lacking amylose. (wikipedia.org)
  • Features such as UDP-glucose building blocks and cytosolic storage differentiate the Archaeplastida into two groups: the rhodophytes and glaucophytes, which use floridean starch, and the green algae and plants (Chloroplastida), which use amylopectin and amylose. (wikipedia.org)
  • Participants received in random order the three test meal (700Kcal, 80g available carbohydrates) containing breads prepared with amylose-rich wheat flours (70% or 85%) or conventional flour. (clinicaltrials.gov)
  • Subjects/methods Ten overweight subjects consumed in random order two test meals differing only in the carbohydrate source: rusks prepared with amylose-rich wheat flour (ARR) or conventional wheat flour (control). (deepdyve.com)
  • Because of its tightly packed helical structure, amylose is more resistant to digestion than other starch molecules and is therefore an important form of resistant starch. (wikipedia.org)
  • Amylose is made up of α(1→4) bound glucose molecules. (wikipedia.org)
  • Loose helical amylose chains have a hydrophobic interior that can bind to hydrophobic molecules such as lipids and aromatic compounds. (wikipedia.org)
  • Iodine molecules fit neatly inside the helical structure of amylose, binding with the starch polymer that absorbs certain known wavelengths of light. (wikipedia.org)
  • Amylose is a well-known polysaccharide and forms inclusion complexes with various hydrophobic small molecules. (mdpi.com)
  • In pure form, it is a white, odorless and tasteless substance composed of two molecules: amylose and amylopectin. (remedypharmacist.com)
  • 1. Salivary amylase released in the mouth is the first digestive en z yme to assist in breaking down food into its component molecules, and that process continues after food enters the stomach. (remedypharmacist.com)
  • Amylose is a type of polysaccharide, which are a group of molecules that make up complex carbohydrates. (facty.com)
  • Amylose is a carbohydrate that is composed of a number of glucose molecules linked to each other via 1,4-glycosidic bonds. (pediaa.com)
  • Amylose molecules are made out of alpha- D-glucose . (pediaa.com)
  • Amylose can be degraded into smaller carbohydrate molecules such as maltose. (pediaa.com)
  • Amylose, a mostly linear homopolymer of α(1,4)-D-glucose extracted from native starch, has the ability to form crystalline inclusion compounds with a large variety of small molecules. (emc-proceedings.com)
  • Using data from solid-state NMR, and electron and X-ray diffraction, we have proposed a molecular model allowing to locate the ibuprofen guest molecules in the lattice of amylose helices. (cnrs.fr)
  • The unit cell would contain four antiparallel 7‑fold amylose single helices with ibuprofen molecules distributed inside and between the helices. (cnrs.fr)
  • The degree of polymerization of glucose in amylose molecules is species dependent and averages about 800 residues in wheat [ 1 ]. (hindawi.com)
  • In mashing b amylase digests amylose and amylopectin molecules by releasing maltose units from the non reducing ends of the starch chains. (brewlab.co.uk)
  • Therefore, amylase can catalyze the hydrolysis or the breakdown of amylose in starch. (pediaa.com)
  • Although the names amylase and amylose sounds similar, there is a significant difference between amylase and amylose as discussed below in this article. (pediaa.com)
  • The main difference between amylase and amylose is that amylase is a protein whereas amylose is a carbohydrate . (pediaa.com)
  • Amylase and amylose are important compounds that can be found in biological systems such as the human body. (pediaa.com)
  • About 35% of the amylose films were resistant to α-amylase, whereas amylopectin films were hydrolysed wholly. (vtt.fi)
  • In mashing a amylase digests internal bonds of amylose and amylopectin to release a range of sizes of simple sugars and larger dextrins. (brewlab.co.uk)
  • In particular, the inactivation of the enzymes involved in amylopectin synthesis can lead to the increase of amylose content. (biomedcentral.com)
  • The indica Wx (Wxi) allele played a major role while indica SSI (SSIi), japonica SSIIa (SSIIaj) and indica SBEI (SBEIi) alleles had minor roles on the increase of amylose content. (nih.gov)
  • EC 24.1.21), which is involved in amylose synthesis in plants. (springer.com)
  • The film forming behaviour and hydrophobicity of high amylose (HA) starch in the presence of three different natural waxes (beeswax, candelilla wax and carnauba wax) were studied in the presence and absence of Tween-80. (edu.au)
  • Nakamura T, Yamamori M, Hirano H, Hidaka S (1993c) Decrease of waxy (Wx) protein in two common wheat cultivars with low amylose content. (springer.com)
  • 12 barley cultivars with varying amylose content, and purified starch from the same cultivars, (low, normal, high) was incubated in an enzymatic in vitro system, and degradation of starch was measured. (nofima.no)
  • Degradation measurements confirmed that low amylose cultivars were faster degraded than normal -and high. (nofima.no)
  • So far, limited evidence is available on the metabolic effect of wheat-based foods rich in amylose. (clinicaltrials.gov)
  • This randomised controlled study investigated the acute metabolic effects of amylose-rich wheat-based breads in overweight subjects focusing on potential mechanisms. (clinicaltrials.gov)
  • Amylose content was markedly increased in the durum wheat transgenic lines exhibiting SBEIIa gene silencing. (biomedcentral.com)
  • We have found that the silencing of SBEIIa genes in durum wheat causes obvious alterations in granule morphology and starch composition, leading to high amylose wheat. (biomedcentral.com)
  • Derived from high amylose wheat, the fiber in HealthSense flour is naturally occurring resistant starch, and is delivered directly from the farm, not from a factory. (baystatemilling.com)
  • The wheat starch consists of amylose and amylopectin. (kuryemotor.com)
  • The variation in the swell characteristics of different genotype wheat flours depends largely on the difference in amylose content. (kuryemotor.com)
  • In general, good noodle quality should have a suitable ratio of amylose to amylopectin, wheat flour with low or medium amylose content has good noodle quality, and its noodle is soft, sticky and smooth. (kuryemotor.com)
  • However, if using the amylose fast analyzer to measure, then Quality control can be performed during the production of wheat flour to produce noodle special flour suitable for noodle making. (kuryemotor.com)
  • Therefore, in the process of producing noodles, wheat flour processing companies often use the amylose rapid analyzer to control the quality of starch in wheat flour. (kuryemotor.com)
  • Can Manipulation of Durum Wheat Amylose Content Reduce the Glycaemic Index of Spaghetti? (unitus.it)
  • This study aimed to see what level of amylose in durum wheat is needed to lower pasta GI. (unitus.it)
  • Amylose analyzer can determine the amylose content of rice, corn, wheat and other crops. (top-instrument.com)
  • Because the long linear chains of amylose more readily crystallize than amylopectin (which has short, highly branched chains), high-amylose starch is more resistant to digestion. (wikipedia.org)
  • Increased levels of amylose correspond to high levels of resistant starch, which has been proven to deliver significant health benefits. (thefreedictionary.com)
  • HI-MAIZE resistant starch is a type of dietary fiber derived from a variety of corn that is high in amylose starch. (thefreedictionary.com)
  • com) says: "They consist of amylose , which is a resistant starch - so-called because it is resistant to stomach acid and digestive enzymes and it reaches the large intestine essentially intact. (thefreedictionary.com)
  • High fat diet partially attenuates fermentation responses in rats fed resistant starch from high-amylose maize. (nih.gov)
  • The effects of type 2 resistant starch from high-amylose maize (HAM-RS2) in rodents fed with low-fat diets were demonstrated in previous studies. (nih.gov)
  • High amylose starch has attracted particular interest because of its correlation with the amount of Resistant Starch (RS) in food. (biomedcentral.com)
  • Rats were then fed diets supplemented with amylopectin (low-fiber control) or high fermentable fiber (amylose maize resistant starch, HAM-RS2) for 3 weeks. (escholarship.org)
  • Amylose is a type of resistant starch that is found in many foods. (facty.com)
  • It was concluded that even if part of the amylose films were amorphous, also these amorphous regions were more resistant to hydrolysis than the amorphous amylopectin structures. (vtt.fi)
  • A higher amylose content is associated with slower starch digestion thus reducing the postprandial plasma glucose response and improving the overall postprandial metabolism. (clinicaltrials.gov)
  • If food has a higher amylose content, it is digested differently. (facty.com)
  • To compare the glycemic index of breads made with different amylose content. (clinicaltrials.gov)
  • Primer P4 can be used as a complementary marker for the selection of different amylose content hulless barley germplasms. (agriculturejournals.cz)
  • This review presents our researches on the preparation and material application of inclusion complexes that comprises an amylose host and polymeric guests through phosphorylase-catalyzed enzymatic polymerization. (mdpi.com)
  • The products of vine-twining polymerization form polymeric continuums of inclusion complexes, where the enzymatically produced amylose chains elongate from the conjugates included in the guest segments of the other conjugates. (mdpi.com)
  • Inclusion complexes between amylose and polytetrahydrofurans. (rug.nl)
  • The complexes were formed immediately upon mixing of soluble amylose and emulsified PTHF. (rug.nl)
  • This structure was also observed for complexation of low DP n PTHF with PTHF- b amylose (t m complexes 120-139 °C). However, the V 6II -amylose which indicates the presence of guest PTHF in between the amylose helices was observed in PTHF- b amylose. (rug.nl)
  • (EN) The invention provides a method for the manufacture of amylose-lipid complexes The method includes the steps of pasting a mixture of starch and a fatty acid until after the second biphasic peak viscosity is reached, hydrolysing the starch with a hydrolysing enzyme, and dispersing the hydrolysed starch and working up of the residue. (wipo.int)
  • The formation of high amylose corn starch (HACS)-alkylresorcinol (AR) inclusion complexes was demonstrated using HACS and a crude AR extract from rye bran, and was confirmed by complementary characterization techniques. (elsevier.com)
  • The base-plane electron diffraction pattern (Figure 2b) is identical to that recorded from complexes of V-amylose with isopropanol [Nishiyama et al. (emc-proceedings.com)
  • In this work, a nanocomplexation strategy was developed for modifying the stability and hemostatic efficacy of thrombin, in which a water-soluble cationic amylose derivative containing poly(l-lysine) dendrons was prepared by a click reaction and then used to complex thrombin in an aqueous system. (dovepress.com)
  • Which Starch Fraction is Water-Soluble, Amylose or Amylopectin? (wikipedia.org)
  • The sponges are made by lyophilizing water-soluble salts of the mono- or half-esters, such as water-soluble salts of amylose succinate or amylose glutarate, under process conditions of the invention in the presence of a reticulating agent which causes a controlled melting of the salt solution as it nears the dry state during the lyophilizing step. (google.ca)
  • Owing to our vast experience and knowledge of this domain, we have been able to offer High Amylose Corn Starch to our valuable customers. (sheekharr.in)
  • Unlike amylopectin, amylose is not soluble in cold water. (wikipedia.org)
  • If amylopectin is low and amylose high , as in long grain rice (found in grocery stores and super markets), each cooked rice grain is dry and fluffy and remains separate. (whatscookingamerica.net)
  • In this study, we used a rice mutant, GM077, with a low content of amylose to gain molecular insight into how a deficiency of amylose affects carbon allocation to other end products and to amylopectin. (nih.gov)
  • Analyses of carbohydrate and oil fractions and gene expression profiling on a global scale in the rice waxy mutant GM077 revealed several candidate genes implicated in the carbon reallocation response to an amylose deficiency, including genes encoding AGPase and SUSIBA2-like. (nih.gov)
  • This Annex specifies two simplified routine methods for the determination of the amylose mass fraction of milled rice, non-parboiled. (bsigroup.com)
  • Rice samples of which the amylose mass fraction has been determined by the reference method are used as standards. (bsigroup.com)
  • Bollieh C.N., Webb B.D. (1973): Inheritance of amylose in two hybrid populations of rice. (agriculturejournals.cz)
  • Hydration and amylose-solubility behaviour of parboiled rice. (cftri.com)
  • The total soluble amylose content of rice (as revealed by 96 degree C starch-iodine blue value) decreased slightly on parboiling. (cftri.com)
  • But on extracting at a temperature below the gelatinization point, the fraction of total soluble amylose extracted into water was more in parboiled than in raw rice and increased with increasing severity of parboiling. (cftri.com)
  • Equilibrium moisture content attained by the rice on soaking in water as well as soluble amylose contents at 50 degree and 96 degree C also give useful information about the degree of parboiling. (cftri.com)
  • Relationship between amylose content and expansion characteristics of parboiled rice. (cftri.com)
  • Topics of the other nine chapters include microalgae in novel food products, the ochratoxin A concentration in wines, the role of amylose and amylopectin in starchy foods, protein and lipid recovery from food processing by-products, and the gelation of high methoxy pectins. (thefreedictionary.com)
  • Understanding carbon partitioning in cereal seeds is of critical importance to develop cereal crops with enhanced starch yields for food security and for producing specified end-products high in amylose, β-glucan, or fructan, such as functional foods or oils for biofuel applications. (nih.gov)
  • High-amylose starch is in great demand by the starch industry for its unique functional properties. (nih.gov)
  • However, very few high-amylose crop varieties are commercially available. (nih.gov)
  • In this paper we describe the generation of very-high-amylose potato starch by genetic modification. (nih.gov)
  • This unique starch, with its high amylose, low amylopectin, and high phosphorus levels, offers novel properties for food and industrial applications. (nih.gov)
  • the greater fresh tuber yield in the high-amylose GM line was accomplished by higher water allocation to the harvested tubers, and associated with increased N recovery from soil (+20%), N uptake efficiency (+53%), tuber N content (+20%), and N accumulation (+120%) compared with the non-GM parent. (frontiersin.org)
  • In conclusion, the genetic modification inducing high accumulation of amylose in potato tubers affected several non-target traits related to plant N economy, and increased the plant N uptake and accumulation efficiency of the field-grown plants. (frontiersin.org)
  • Due to strongly increased plant N accumulation compared to the parental variety, the cultivation of the high-amylose line is expected to require higher N fertilization rates. (frontiersin.org)
  • However, starch productivity per unit land area or soil N still is expected to be higher in the high-amylose line. (frontiersin.org)
  • In the interest of your long term health, and to avoid the possibility of any unnecessary complications , it is essential that you do not try to switch to either a high-Amylose diet for the purpose of blood sugar regulating, nor to eliminate Amylose-rich foods altogether in an attempt to lose weight . (diabeticlive.com)
  • High-amylose potato lines have been achieved by inhibiting the two known branching enzyme forms of potato. (lu.se)
  • The high-amylose potato lines were tested in multiple year field trials of agronomic performance and were used for the pilot plant production of starch. (lu.se)
  • Ahmad, Naveed 2019-02-15 00:00:00 The addition of emulsifiers improved the performance and stability of high amylose starch based wood adhesive. (deepdyve.com)
  • The addition of emulsifiers improved the performance and stability of high amylose starch based wood adhesive. (deepdyve.com)
  • RVA analysis showed new pasting properties associated with high amylose lines in comparison with untransformed controls. (biomedcentral.com)
  • High purity dyed, crosslinked and finely milled insoluble AZCL-Amylose for identification of enzyme activities in research, microbiological enzyme assays and in vitro diagnostic analysis. (megazyme.com)
  • Formation of elongated starch granules in high-amylose maize" by Hongxin Jiang, Harry T. Horner et al. (iastate.edu)
  • A new public high-amylose maize line, GEMS-0067, has been developed by USDA-ARS Germplasm Enhancement of Maize (GEM) Project. (iastate.edu)
  • GEMS-0067 maize line is a homozygous mutant of amylose-extender (ae) gene and high-amylose modifier (HAM) gene(s). (iastate.edu)
  • To understand how dosage of the high-amylose modifier (HAM) gene affected the structures and properties of endosperm starch of maize ae-mutant, nine maize samples with HAM gene-dosage of 100%, 83.3%, 66.7%, 66.7%, 50%, 33.3%, 33.3%, 16.7%, and 0% were prepared in a generation-means analysis (GMA) study. (iastate.edu)
  • The offered starch contains high percentage of linear and complex amylose. (sheekharr.in)
  • We investigate the influence of sorbitol and natural Na+-montmorillonite (nanoclay) loading on the characteristic of high amylose nanocomposites and the distribution of nanoclay after extrusion processing. (edu.au)
  • We examined polymorphisms among the 1,135 sequenced accessions of Arabidopsis (Arabidopsis thaliana) in GRANULE-BOUND STARCH SYNTHASE (GBSS), encoding the enzyme responsible for amylose synthesis. (jic.ac.uk)
  • We investigated the role of SBS2 by comparing kinetic properties of the wild type AMY1 and the Y380A mutant enzyme in hydrolysis of amylopectin, amylose and β-limit dextrin, and the inhibition by β-cyclodextrin. (dtu.dk)
  • We now report the synthesis of amylose-like material by another enzyme system from potato. (elsevier.com)
  • If, in addition to D-enzyme, the potato is equipped with such a glucose-removing enzyme system, then it is presumably capable of synthesizing amylose by a route other than that provided by phosphorylase. (elsevier.com)
  • The system (maltodextrin + D-enzyme + hexokinase + adenosine triphosphate) should therefore bring about amylose synthesis. (elsevier.com)
  • Carbohydrate analysis indicated that the content of amylose in GM077 seeds was significantly reduced, while that of amylopectin significantly rose as compared to the wild type BP034. (nih.gov)
  • Studies have found that when the content of amylose is 21%~23%, the quality of noodles is the best. (kuryemotor.com)
  • The HAM gene dosage also had little effect on the structure of amylose of the maize ae-mutant starch. (iastate.edu)
  • Both mutants showed loss of Wx protein and amylose. (springer.com)
  • Treatments were significantly different from each other in polished grain protein and amylose content. (thefreedictionary.com)
  • We examined the effect of the polymorphisms on GBSS function and uncovered three mechanisms by which GBSS sequence variation led to different amylose contents: 1) altered GBSS abundance, 2) altered GBSS activity, and 3) altered affinity of GBSS for binding PROTEIN TARGETING TO STARCH 1 (PTST1) - a protein that targets GBSS to starch granules. (jic.ac.uk)
  • 4-[alpha]-glycoside linkages of amylose and amylopectin chains, decomposing starch into soluble dextrins and oligosaccharides. (thefreedictionary.com)
  • A polymer made up of glucose units joined by -1.4 links with branches at the -1.6 linkages which form every 24-30 glucose units, so it is broken down more rapidly than amylose. (abpischools.org.uk)
  • Amylose is essentially a linear molecule of α -1,4-linked glucose residues with a few α -1,6-glycosidic linkages. (hindawi.com)
  • Progress curves of the release of reducing ends revealed a bi-exponential hydrolysis of amylopectin and β-limit dextrin, whereas hydrolysis of amylose progressed mono-exponentially. (dtu.dk)
  • β-Cyclodextrin, however, inhibited only one of the two reaction rates of amylopectin and β-limit dextrin hydrolysis, whereas hydrolysis of amylose was unaffected. (dtu.dk)
  • The isoamylase-debranched Naegeli dextrins had average chain-lengths of DP 23.8-27.5 and large proportions of long chains (DP  25, 36.7-52.7%), resulting from hydrolysis of amylose double helices. (iastate.edu)
  • The present invention relates to a slow release pharmaceutical tablet, and more particularly to a slow release pharmaceutical tablet incorporating a covalent or non-covalent cross-linked polymer of a mixture of amylose and amylopectin as the slow release matrix. (google.com)
  • Amylose - an unbranched polymer made in plants made up of 200 - 5000 glucose units all joined by α-1,4 glycosidic bonds. (abpischools.org.uk)
  • The formation of long-chain double-helical crystallites of amylose/IC and the lipid content increased with kernel maturation and the increase in the amylose/IC content. (iastate.edu)
  • Both major alleles (Wxi and SSIIaj) reduced peak viscosity (PV), onset, peak and end gelatinization temperatures (GTs) of amylopectin, and increased amylose-lipid complex dissociation enthalpy compared with their counterpart-alleles, respectively.SBEIIai and SBEIIbj decreased PV, whereas SSIi and SBEIIbj decreased FV.SBEIi reduced setback viscosity and gelatinization enthalpy. (nih.gov)
  • Among the 116 unigenes, three, AGP, ISA1 and SUSIBA2-like, were found to be directly involved in amylopectin synthesis, indicating their possible roles in redirecting carbon flux from amylose to amylopectin. (nih.gov)
  • Since the function and adaptive significance of amylose are unknown, we asked whether there is natural genetic variation in amylose synthesis within a wild, uncultivated species. (jic.ac.uk)
  • THE synthesis of the chain-forming α-1: 4-bonds of potato starch (amylose + amylopectin) has for long been ascribed to phosphorylase acting on glucose-1-phosphate and a preformed starch-like primer 1 . (elsevier.com)
  • 2 Significant difference of total amylose content between BP034 and GM077 ( P = 0.0001). (nih.gov)
  • Optimal amylose content for best expansion varied with parboiling condition, increasing with increasing steaming pressure, and was e.g. 21% total amylose for 0.5 kg/cm-2 vs. 28% for 2 kg/cm-2. (cftri.com)
  • Highest overall expansion (index 6.5-6.7) was given by 27-28% total amylose and 13.5% water-insoluble amylose. (cftri.com)
  • In these crystallosolvates, the so-called "V-amylose" occurs in the form of single helices and the ligands can be located inside the helices, in-between or both [Lourdin et al. (emc-proceedings.com)
  • The hexagonal platelets crystallized by cooling the solution maintained at 90°C (Figure 1a) correspond to the so-called "V H " structure, i.e. , the compact hexagonal packing of 6-fold amylose single helices (Figure 1b). (emc-proceedings.com)
  • The unit cell is thus orthorhombic and would contain 7-fold amylose single helices. (emc-proceedings.com)
  • Studies suggest that the apparent amylose content of Chokuwa could be as low as 15 to 20 per cent and even lesser in Bora. (thefreedictionary.com)
  • Wu K., Yao X., Yao Y., Chi D., Feng Z. (2017): Analysis of the relationship between Wx gene polymorphisms and amylose content in hulless barley. (agriculturejournals.cz)
  • Amylose concentration in barley grain is one of the important quality traits. (usda.gov)
  • A single inserted gene construct for the inhibition of both forms resulted in structural changes of the starch to levels of branching that were below the commercially available amylose standards of potato. (lu.se)
  • There are three main forms of amylose chains can take. (wikipedia.org)
  • Amylose starch from potatoes differs from cereal amyloses in several functionally important aspects, such as a higher degree of polymerization. (lu.se)
  • The lamellar thickness increased with increasing degree of polymerization of amylose and reached a plateau at about 7 nm, consistent with a chain-folding mechanism. (cnrs.fr)
  • TORRANCE, Calif., March 19, 2019 /PRNewswire/ -- Phenomenex Inc., a global leader in the research and manufacture of advanced technologies for the separation sciences, expands its Lux chiral LC/SFC column family with a third new immobilized chiral media- Lux i-Amylose-3 . (thomasnet.com)
  • The Lux 3 µm i-Amylose-3 is ideal for LC/SFC analytical work and chiral screening, while the larger diameter, Lux 5 µm i-Amylose-3, can be used for analysis and purification work as it is available in analytical (2.1-4.6 mm ID), semi-preparative (10 mm ID) and Axia™ pre-packed preparative columns (21.2-50 mm ID). (thomasnet.com)
  • Along with strong solvent flexibility, the Lux i-Amylose-3 column's broad enantioselectivity promotes greater chiral separation success and is quickly becoming known as the go-to chiral column that customers start their screens with. (thomasnet.com)
  • With the addition of Lux i-Amylose-3 , the Lux chiral column portfolio now includes three immobilized stationary phases and six coated chiral stationary phases. (thomasnet.com)
  • Specifically, YMC Chiral Art Amylose-SA is an immobilized-type polysaccharide stationary phase [Amylose tris(3,5-dimethylphenylcarbamate) selector]. (ymcamerica.com)
  • had much increased water solubility compared to the nAYBS, presumably due to depolymerization of both amylose nd amylopectin and structural weakening of the starch granule as a whole. (thefreedictionary.com)
  • The transmission electron micrographs showed fusion through amylose interaction between adjacent small granules in the amyloplast at the early stage of granule development. (iastate.edu)
  • The transmission electron microscopic images of GEMS-0067 endosperm tissues harvested at an early stage (20 days after pollination) of the kernel development showed that the elongated starch granules formed by fusion of small granules through amylose interaction in the amyloplast at the early stage of granule development. (iastate.edu)
  • An increase of HAM gene-dosage in maize ae-mutant resulted in higher amylose/IC content of the starch and significantly affected the molecular organization in the granule, granule morphology, starch crystallinity, and starch thermal properties. (iastate.edu)
  • An increase in starch content correlated with an increased amylose content of the starch and with an increase in the ratio of granule-bound starch synthase to soluble starch synthase activity. (plantphysiol.org)
  • X-ray crystallinity of amylose and amylopectin films with 0, 10 and 30% of glycerol and stored at RH 0, 54 and 91% were studied. (vtt.fi)
  • Amylose-glycerol films prepared by casting from solution were hydrated to different water contents. (vtt.fi)
  • At a given hydration level, the presence of glycerol did not affect the extent of crystallinity or polymorphism of amylose. (vtt.fi)
  • Proton NMR relaxometry was used to study the effects of water and glycerol on the molecular mobility of amylose. (vtt.fi)
  • Spin-spin and spin-lattice relaxation parameters suggested a step change in the mobility of amylose when sufficient plasticiser, water and glycerol, was added to decrease the glass transition temperature ( T g ) such that it became equal to or smaller than the observation temperature ( T ), i.e. (vtt.fi)
  • In the rubbery state, the mobility of amylose increased with increasing glycerol and water contents, i.e. with increasing ( T − T g ). (vtt.fi)
  • The mobility of amylose in the glassy state was best assessed through the spin-lattice relaxation times which suggested that at a given ( T − T g ), the addition of glycerol leads to a decreased mobility probably through its well documented antiplasticising role. (vtt.fi)
  • The carbon atoms on glucose are numbered, starting at the aldehyde (C=O) carbon, so, in amylose, the 1-carbon on one glucose molecule is linked to the 4-carbon on the next glucose molecule (α(1→4) bonds). (wikipedia.org)
  • Amylose is a molecule that is found in starch. (diabeticlive.com)
  • In a handout the following is stated: Amylose is insoluble in water, therefore a good storage compound e.g. in stroma of chloroplasts This is with regard to the chemical structure of the molecule. (wyzant.com)
  • The SSIIa and SBEIIa mutants have a 28% and 74% increase in amylose and a 2.8- and 35-fold increase in RS, respectively. (unitus.it)
  • NOMAC : New Tools for Managing the Fate of Cereal Nutrients in the Gut : Effects of Amylose Content on Glycemic Index. (clinicaltrials.gov)
  • Molecular insights into how a deficiency of amylose affects carbon allocation--carbohydrate and oil analyses and gene expression profiling in the s. (nih.gov)
  • The association of polymorphisms in carbohydrate and starch metabolic genes with variation in amylopectin chain length distribution and percent amylose may help to guide manipulation of pea seed starch structural and functional properties through plant breeding. (biomedcentral.com)
  • Amylose is a carbohydrate . (pediaa.com)
  • Amylose can act as a storage carbohydrate in plants. (pediaa.com)
  • Dilute aqueous solutions of amylose (0.1 wt%) and fatty acids were briefly heated at 160°C, then kept at 90 or 100°C for 24 h. (emc-proceedings.com)
  • Rectangular V-amylose single crystals were prepared by adding racemic ibuprofen to hot dilute aqueous solutions of native and enzymatically-synthesized amylose. (cnrs.fr)
  • It can be assumed that this wastewater is comprised of acids, such as acetic, butyric, propionic, butyric and lactic acids, and the products of amylose and amylopectin degradation, such as dextrin, oligosaccharides and monosaccharides (data non published). (thefreedictionary.com)
  • When other things including amylopectin bind to amylose, the viscosity can be affected, but incorporating κ-carrageenan, alginate, xanthan gum, or low-molecular-weight sugars can reduce the loss in stability. (wikipedia.org)
  • The amylose rapid analyzer analysis shows that the amylose content and ratio It has a great influence on starch viscosity and swelling potential, and it is also one of the important factors affecting the quality of noodles. (kuryemotor.com)
  • Amylose can be found in starch (in plants). (pediaa.com)
  • McKenzie K. S., Rutger J. N. (1983): Genetic Analysis of Amylose Content, Alkali Spreading Score, and Grain Dimensions in Rice1. (agriculturejournals.cz)
  • In this study, a major quantitative trait locus (QTL) for grain amylose content was identified from a doubled haploid (DH) population. (usda.gov)