A total of 1,160 barrows (PIC, initially 68.4 lb) were used in a 70-d study to determine the influence of dried distillers grains with solubles (DDGS) and glycerol on pork loin quality attributes. The pigs were blocked by weight and randomly assigned to 1 of 6 dietary treatments with 7 replications per treatment. Pigs were fed corn-soybean meal-based diets with the addition of DDGS, glycerol, or a combination of these. The treatments were arranged in a 2 × 3 factorial with main effects of DDGS (0 or 20%) and glycerol (0, 2.5, or 5%). Pork loins from the 2 heaviest barrows from each pen were utilized for analysis. There were no DDGS × glycerol interac-tions for purge loss, instrumental color (L*a*b*), visual color, marbling score, drip loss, visual color, pH, Warner-Bratzler shear force (WBSF), cook loss, and most sensory characteristics. However, there was a DDGS × glycerol interaction (P , 0.03) for off-flavor intensity. Specifically, pigs fed 20% DDGS without added glycerol had more ...

TY - JOUR. T1 - Dependence of the shape of the plasma fibronectin molecule on solvent composition. Ionic strength and glycerol content. AU - Rocco, M.. AU - Carson, M.. AU - Hantgan, R.. AU - McDonagh, J.. AU - Hermans, J.. PY - 1983. Y1 - 1983. N2 - Fibronectin has been purified to apparent homogeneity according to measurements of molecular weight and diffusion constant from light scattering and sedimentation in the analytical ultracentrifuge. This gives two estimates of molecular weight close to 500,000. (The difference with the gel electrophoretic value of 440,000 may indicate the presence of some material of molecular weight higher than that of the monomer). The (corrected) diffusion constant is found to decrease with ionic strength, much more rapidly in 30% glycerol than in water. A corresponding change occurs when the glycerol content is varied from 0 to 30% at moderate ionic strength, but at very low ionic strength the diffusion constant does not depend on glycerol content. It is ...

The excess chemical potential, partial molar enthalpy, and volume of 1-propanol were determined in ternary mixtures of 1-propanol-glycerol-H2O at 25degreesC. The mole fraction dependence of all these thermodynamic functions was used to elucidate the effect of glycerol on the molecular organization of H2O. The glycerol molecules do not exert a hydrophobic effect on H2O. Rather, the hydroxyl groups of glycerol, perhaps by forming clusters via its alkyl backbone with hydroxyl groups pointing outward, interact with H2O so as to reduce the characteristics of liquid H2O. The global hydrogen bond probability and, hence, the percolation nature of the hydrogen bond network is reduced. In addition, the degree of fluctuation inherent in liquid H2O is reduced by glycerol perhaps by participating in the hydrogen bond network via OH groups. At infinite dilution, the pair interaction coefficients in enthalpy were evaluated and these data suggest a possibility that the interaction is mediated through H2O ...

The tight junction regulates passage of molecules throuth the paracellular spaces. Occludin and claudins are the specific trancmembrance protains present at the tight junction and are believed to regulate the cell barrier functions. To examine the response of the tight junction to hyperosmotic solutions, Ⅰinvestigated the effects of hyperosmotic glycerol on function and protein expression of the tight junction in ECV304 cells. Cell cytotoxicity analysis showed that the high (10%) concentration of glcerol damaged 64.1% of the ECV304 cells (p＜0.001), and this was confirmed morphologically. Treatment with 1%, 2% or 5% glyserol increased the paracellular permeability of fluorescein isothiocyanate (FITC) -labeled dextran by 4.7%, 18.7% and 29.4% (p＜0.05), respectively. In addition, exposure to glycerol at any concentration strongly reduced the expression of occludin, whereas enpression of claudin-1 was affected very slightly. These results suggest that hyperosmotic glycerol would certainly ...

The effect of glycerol on nutrient digestibility in finishing pigs - Volume 1 Issue 1 - M E E McCann, E Magowan, K J McCracken, V E Beattie, F J Gordon, M D Scott, A Thompson, R Bradford

Crude glycerol is a main by-product from biodiesel production, and efficient utilization of crude glycerol will bring significant economic and environmental benefits. However, the complex compositions of crude glycerol may impair the cellular growth and inhibit the crude glycerol consumption. Therefore, it is necessary to find a simple method to treat the crude glycerol and release the inhibition on cell metabolism. The simply purified crude glycerol by activated carbon can be used as the carbon source to produce succinate in two-stage fermentation by the engineered Escherichia coli strain, MLB (ldhA−, pflB−) expressing phosphoenolpyruvate carboxykinase. In the flask experiments, succinate production from crude glycerol without treatment was less than that from pure glycerol. However, in the experiments of 1.5-L bioreactor, little succinate was produced in crude glycerol. The simply purified crude glycerol was used as carbon source for succinate production, and the glycerol consumption and succinate

In starvation, glycerol is released from adipose tissue and serves as an important precursor for hepatic gluconeogenesis. By unknown gender-specific mechanisms, women suppress the endogenous glucose production better than men and respond to metabolic stress with higher plasma glycerol levels. Hepatic glycerol uptake is facilitated by aquaporin-9 (AQP9), a broad-selectivity neutral solute channel, and represents an insulin-regulated step in supplying gluconeogenesis with glycerol. In the current study, hepatic AQP9 abundance was increased 2.6-fold in starved male rats as assessed by immunoblotting and immunohistochemistry. By contrast, starvation had no significant effect on hepatic AQP9 expression in female rats. Coordinately, plasma glycerol levels remained unchanged upon starvation in male rats whereas it was increased in female rats. The different responses to starvation were paralleled by higher glycerol permeability in basolateral hepatocyte membranes from starved male rats as compared to ...

TY - JOUR. T1 - Effect of groove width and depth and urethane coating on slip resistance of vinyl flooring sheet in glycerol solution. AU - Shibata, Kei. AU - Warita, Iori. AU - Yamaguchi, Takeshi. AU - Hinoshita, Mamoru. AU - Sakauchi, Koichi. AU - Matsukawa, Seiko. AU - Hokkirigawa, Kazuo. PY - 2019/7. Y1 - 2019/7. N2 - Sheet-type resin floors possess a risk of slipping during rains or liquid spills. We investigated the friction properties of vinyl flooring sheets using shoes and glycerol solution, and clarified the combined effect of the grooves depth and width and a urethane coating on the coefficient of friction (COF). According to the analysis, the static COF could be expressed using the spreading coefficient. All the dynamic COFs could be expressed using the spreading coefficient and aspect ratio of the grooves. All the COFs were significantly affected by the interfacial tension at the triple line but were relatively unaffected by the groove shape.. AB - Sheet-type resin floors possess a ...

Crude glycerol represents ca. 10 % of the product output in biodiesel production. As the biodiesel production increases exponentially, the amount of resulting crude glycerol is extensively high. The problem of its disposal or effective utilization is of increasing importance. In this work, the composities of poly(vinyl alcohol), horn meal and crude glycerol with the mass ratios of crude glycerol and poly(vinyl alcohol) 0.75, 1.5 and 2.25 were prepared and used for the formation of mulching coatings. The influence of the addition of crude glycerol to the composites on the mechanical, viscoelastic properties, swelling and dimensional stability in water of the composite films was examined. The increase of the amount of glycerol resulted in the increase of elasticity and dimensional stability of the composite films. The effect of the mulch films containing the different amount crude glycerol on evaporation of water from the substrate, vegetation of plants, soil properties and weeds (wild mustard and ...

Aquaglyceroporins-aquaporin membrane channels (AQP) that conduct glycerol and other small neutral solutes in addition to water-play major roles in obesity. In adipocytes, aquaglyceroporins mediate glycerol uptake and release across the plasma membrane, which are two key steps for triacylglycerols (TAGs) synthesis (lipogenesis) and hydrolysis (lipolysis). The aim of this study was to assess both glycerol permeability and metabolism in undifferentiated 3T3-L1 cells (UDCs) as well as in untreated (CTL-DCs) versus lipopolysaccharide (LPS-DCs)-treated differentiated 3T3-L1 adipocytes. Glycerol release, TAGs content and whole membrane glycerol permeability were significantly increased in DCs as compared to UDCs. Moreover, in DCs, LPS treatment significantly increased TAGs content and decreased glycerol permeability. In addition, a significant reduction in whole membrane glycerol permeability was observed in LPS-DCs as compared to CTL-DCs. The relative contributions of AQP3, AQP7 and AQP9 (facilitated

Porphyran is a sulfate galactan in the cell wall of Porphyra. Its acid hydrolysis product, oligo-porphyran (OP), was prepared and the structure studied by electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS). This oligosaccharide was mainly composed of monosulfate-oligo-galactan, disufate-oligo-galactan, trisulfate-oligo-galactan, trisulfate oligo-methyl-galactan, and 3,6-anhydrogalactose with the degree of polymerization ranging from 1 to 8. The effects of OP were investigated in the glycerol-induced acute renal failure (ARF) model. Compared with the normal group, rats from the glycerol-induced group exhibited collecting duct and medullary ascending limb dilation and casts. The OP-treated group exerted a protective effect against glycerol-induced changes. The results showed that the administration of OP markedly decreased mortality in female ARF rats. For male ARF rats, all of which survived, OP significantly decreased the blood urea nitrogen and serum creatinine levels. Ion levels in

Citation: Boyd, J.A., West, J.W., Bernard, J.K. 2013. Effects of feeding different amounts of supplemental glycerol on ruminal environment and digestibility of lactating dairy cows. Journal of Dairy Science. 96:470-476. Interpretive Summary: Glycerol can be used to replace corn in a dairy cows diet, but feeding glycerol to dairy cattle has been cost prohibitive because of its value in other fields. However, feeding glycerol became more feasible when it became a byproduct of biodiesel production. A study was conducted to evaluate the effects of increasing amounts of dietary glycerol on rumen environment, blood metabolites, and nutrient digestibility. Results indicated that the inclusion of dietary glycerol in the ration of high producing dairy cows may reduce intake, and alter milk yield and composition because of changes in ruminal fermentation. This trial was one step in determining optimal inclusion rates for glycerol in dairy cattle diets. Technical Abstract: A study was conducted to ...

The apparent DE and ME values of crude glycerol for growing pigs were determined in 5 experiments using crude glycerol (86.95% glycerol) from a biodiesel production facility, which used soybean oil as the initial feedstock. Dietary treatments were 0, 5, or 10% glycerol addition to basal diets in Exp. 1; 0, 5, 10, or 20% glycerol addition to basal diets in Exp. 2; and 0 and 10% crude glycerol addition to the basal diets in Exp. 3, 4, and 5. Each diet was fed twice daily to pigs in individual metabolism crates. After a 10-d adjustment period, a 5-d balance trial was conducted. During the collection period, feces and urine were collected separately after each meal and stored at 0°C until analyses. The GE of each dietary treatment and samples of urine and feces from each pig were determined by isoperibol bomb calorimetry. Digestible energy of the diet was calculated by subtracting fecal energy from the GE in the feed, whereas ME was calculated by subtracting the urinary energy from DE. The DE and ...

Glycerol is one humectant commonly employed due to its high hygroscopic and hyperosmotic properties. It is used in cosmetics as a moisturizer and in pharmaceutical formulations as an active compound. Being naturally present in the skin, glycerol was quickly identified for its role in skin hydration, similar to natural moisturizing factors (NMF).

Neuropeptide Y (NPY) is an important central orexigenic hormone predominantly produced by the hypothalamus, and recently found to be secreted in adipose tissue (AT). Acipimox (Aci) inhibits lipolysis in AT and reduces plasma glycerol and free fatty acid (FFA) levels. Exercise and Aci are enhancers of growth hormone (GH) and NPY secretion and exercise may alter leptin levels. We expect to find abnormal neuropeptidergic response in plasma and AT in patients with bulimia nervosa (BN). We hypothesize that Aci influences these peptides via a FFA-independent mechanism and that Aci inhibits lipolysis through a cyclic adenosine monophosphate (cAMP)-dependent pathway. Dysregulations of the AT-brain axis peptides might be involved in binge eating as is the case in BN. The objective of this study was to determine the responses of plasma NPY, GH, leptin, FFA and glycerol levels to exercise in BN patients and healthy women (C) given the anti-lipolytic drug Aci or placebo. The secondary objective of this study was to

Eesti Teadusinfosüsteem koondab informatsiooni teadus- ja arendusasutuste, teadlaste, teadusprojektide ning erinevate teadustegevuste tulemuste kohta.

The effect of three types of phosphodiesterase (PDE) inhibitors on in vivo antilipolysis was investigated in healthy subjects using a 2-h euglycemic, hyperinsulinemic (40 mU · m-2·min) clamp together with microdialysis of abdominal subcutaneous adipose tissue. During hyperinsulinemia (∼330 pmol/l), the circulating glycerol concentration was reduced to ∼50% of the basal level of 53.2 ± 3.6 μmol/l, indicating an antilipolytic effect. The decrease in adipose tissue dialysate glycerol, which mirrors the change in interstitial glycerol concentration, was about 40% during hyperinsulinemia when Ringers solution alone was perfused. Local perfusion with a selective PDE IV inhibitor, rolipram (10−4) mol/l), did not influence the insulin-induced decrease in dialysate glycerol (F = 0.8 vs. perfusion with Ringers solution by two-factor analysis of variance [ANOVA]), although rolipram increased the dialysate glycerol level by 144 ± 7% of the baseline value. However, local perfusion with a ...

Glycerol is by-product of transeterfication process of vegetable oil to produce biodiesel. Theproduction of glycerol increases as the number of biodiesel industries grows. The incrementof glycerol is not proportional with its application in industries which cause a drop in crudeglycerol price and problem to environment. Overcome this condition, an initial experiment ofglycerol characterization as a potential base drilling fluid was performed.This research covered the formulation of glycerol and quality assessment of glycerol, bothcrude and purified glycerol, by comparing the characteristic glycerol with former oil basefluids. The characterization of glycerol compound was conducted by Nuclear MagneticResonance (NMR) spectrometry, and fluid testing which cover the testing of specific gravity,flash point, pour and cloud point also kinematic viscosity.The fluid testing result showed that purified glycerol has better physical characterization thanthe crude glycerol. In addition, purified glycerol

1. The effective volume of distribution of labelled glycerol was studied in conscious young adult rabbits provided with in-dwelling cannulae in the femoral blood vessels. This could be estimated after sampling arterial blood throughout an intravenous infusion of [2-3H]glycerol. The volume was calculated by using an algebraic method of graphical area analysis over 100 min of equilibration, and is symbolized 100V e or 100V e%. It occupied 34.1 +/- 2.2% (mean +/- S.E.M.; n = 13) of the body weight. The pool of endogenous glycerol occupying this space is distinguished in the present paper by calling it the transit pool, symbolized 100Me. 2. The median time of transit of glycerol through this pool was approx. 6 min in these conscious rabbits with normal (less than 0.2 mM) blood glycerol concentrations. 3. The metabolism of glycerol was also studied in rabbits while anaesthetized with urethane or while conscious. On average, half of the change in glycerol concentration that occurred on overnight ...

Powered by Pure, Scopus & Elsevier Fingerprint Engine™ © 2021 Elsevier B.V. We use cookies to help provide and enhance our service and tailor content. By continuing you agree to the use of cookies. ...

Hydrogen is a clean source of energy with no harmful byproducts produced during its combustion. Bioconversion of different organic waste materials to hydrogen is a sustainable technology for hydrogen production and it has been investigated by several researchers. Crude glycerol generated during biodiesel manufacturing process can also be used as a feedstock for hydrogen production using microbial processes. The possibility of using crude glycerol as a feedstock for biohydrogen production has been reviewed in this article. A review of recent global biodiesel and crude glycerol production and their future market potential has also been carried out. Similarly, different technical constraints of crude glycerol bioconversion have been elaborately discussed and some strategies for improved hydrogen yield have also been proposed. It has been underlined that use of crude glycerol from biodiesel processing plants for hydrogen production has many advantages over the use of other organic wastes as ...

The World Health Organization (WHO) ethanol-based handrub (EBHR) formulation contains 1.45% glycerol as an emollient to protect healthcare workers (HCWs) skin against dryness and dermatitis. However, glycerol seems to negatively affect the antimicrobial efficacy of alcohols. In addition, the minimal concentration of glycerol required to protect hands remain unknown. We aim to evaluate the tolerance of HCWs to the WHO EBHR formulation using different concentrations of glycerol in a tropical climate healthcare setting. We conducted a cluster-randomized, double-blind, crossover study among 40 HCWs from an intensive care unit of a tertiary-care hospital in Brazil, from June 1st to September 30, 2017. We tested the WHO EBHR original formulation containing 1.45% glycerol against three other concentrations (0, 0.5, and 0.75%). HCWs used one formulation at a time for seven working days during their routine practice and then had their hands evaluated by an external observer using the WHO scale for visual

Biomass as a source of hydrogen production has gained great cognizance amongst researchers. The growing trend of energy is geared towards renewable energy sources for which crude glycerol serves as a viable source for hydrogen production. The most widely studied feedstock for hydrogen production is methane (CH4). In this work, crude glycerol which is a bi product in biodiesel production is considered because it produces higher number of moles of hydrogen than methane and also, adds up to the effective use of crude glycerol as a source of hydrogen. The kinetics for this system was studied over S/C ratio of 2.6 and O2/C 0.125 using 5% Ni/CeZrCa. Both power law and mechanistic kinetic models were studied. The overall power law model for crude glycerol autothermal reforming process was investigated with a pre-exponential factor of 4.3×1010 mol/gcat.min and activation energy of 8.78×104 J/mol. The reaction orders with respect to crude glycerol, water and oxygen are 1.04, 0.54 and 1.78 respectively. ...

article{877c87ba-990d-4d23-aaaf-30f37c47b19c, abstract = {The antilipolytic effect of insulin on human abdominal subcutaneous adipose tissue and skeletal muscle during local inhibition of cAMP-phosphodiesterases (PDEs) was investigated in vivo, by combining microdialysis with a euglycaemic, hyperinsulinaemic clamp. During hyperinsulinaemia, the glycerol concentration decreased by 40% in fat and by 33% in muscle. Addition of the selective PDE3-inhibitor amrinone abolished the insulin-induced decrease in adipose glycerol concentration, but did not influence the glycerol concentration in skeletal muscle. Nor did the PDE4-selective inhibitor rolipram or the PDE5-selective inhibitor dipyridamole influence the insulin-induced decrease in muscle tissue glycerol. However, the non-selective PDE-inhibitor theophylline counteracted the antilipolytic action of insulin at both sites. The specific activity of PDEs was also determined in both tissues. PDE3-activity was 36.8+/-6.4 pmol x min(-1) x mg(-1) in ...

3-hydroxypropionic acid (3-HP) is an important platform for the production of C3 chemicals, including acrylic acid, methyl acrylate, and acrylamide. Microbial production of 3-HP is mainly due to glycerol metabolism. In this study, in order to improve microbial 3-HP production, we applied a metabolic toggle switch for controlling the glycerol metabolism to redirect the excess metabolic flux of central metabolic pathway toward an exogenous 3-HP producing pathway in Escherichia coli. The metabolic toggle switch enables conditional repression of the expression of a target gene during the fermentation. We individually performed conditional repression of glpK, tpiA, and gapA, which are involved in glycerol metabolism. The conditional repression of glpK and tpiA was not effective for 3-HP production under our experimental conditions. However, gapA conditional repression contributed to improve 3-HP production (titer, 54.2 ± 1.5 mM; yield, 32.1 ± 1.3 %) compared with that for the wild type strain. Additional

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 ...

TY - JOUR. T1 - The MAP kinase Hog 1p differentially regulates stress-induced production and accumulation of glycerol and D-arabitol in Candida albicans. AU - Kayingo, Gerald. AU - Wong, Brian. PY - 2005/9. Y1 - 2005/9. N2 - Candida albicans produces and accumulates large amounts of the polyols D-arabitol and glycerol in culture, and/or in infected mammalian tissues. However, the effects of environmental stresses on production and accumulation of these polyols, and the means by which polyol production and accumulation are regulated have not been studied. C. albicans grown in glucose at 30 °C (i) produced maximal amounts of glycerol within 6 h, (ii) produced maximal amounts of D-arabitol and ribitol within 12 h, and (iii) released most of these polyols into the extracellular environment. C. albicans responded to osmotic and citric acid stress by producing and accumulating more glycerol, and to temperature and oxidative stresses by producing more D-arabitol. The increase in intracellular glycerol ...

TY - JOUR. T1 - More insights into support and preparation method effects in gold catalyzed glycerol oxidation. AU - Bogdanchikova, Nina. AU - Tuzovskaya, Inga. AU - Prati, Laura. AU - Villa, Alberto. AU - Pestryakov, Alexey. AU - Farías, Mario. PY - 2017/5/1. Y1 - 2017/5/1. KW - Active sites. KW - Catalysts. KW - Glycerol. KW - Gold. KW - Nanoparticles. KW - Oxidation. UR - http://www.scopus.com/inward/record.url?scp=85017685400&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=85017685400&partnerID=8YFLogxK. U2 - 10.2174/1570179413666161031114833. DO - 10.2174/1570179413666161031114833. M3 - Article. VL - 14. SP - 377. EP - 382. JO - Current Organic Synthesis. JF - Current Organic Synthesis. SN - 1570-1794. IS - 3. ER - ...

Global glycerol market size is likely to exceed USD 3 billion by 2022, as per a new research report by Radiant Insights, Inc. Regulatory push for promoting bio-diesel production is expected to boost glycerol demand over the forecast period, with expected decline of synthetic products such as DEG and propylene glycol paving the way for glycerol to gain market penetration. Moreover, new developments by Ohio Soybean Council for the development of new glycerol products from soybean are expected to tap new applications over the next six years. However, surging food demand is expected to impact oilseed supply as a raw material for glycerol production.. Increasing diabetes prevalence and changing food habits are expected to augment the use of glycerol as a low-calorie source of lecithin and carbohydrate. Glycerol demand for food & beverage applications is expected to reach USD 417.9 million by 2022, growing at over 8%. Additionally, its sustainable nature is expected to augment glycerol market demand ...

A total of 360 one-day-old Ross 308 broiler chicks were placed in 12 pens (30 birds per pen) and randomly assigned to three dietary treatments (four replicates per treatment). All broilers were fed a starter diet (0-21 days of age) and a finisher diet (22-42 days of age). The experimental treatments consisted of either 0% (GLYC-0), 4% (GLYC-4) or 8% (GLYC-8) crude glycerol added to the diet. The crude glycerol was obtained from a commercial biodiesel production facility that used sunflower, corn and soybean oil in the production of biodiesel.. The crude glycerol was analyzed to contain 82.6% glycerol, 0.03% methanol, 11.8% moisture, 0.64% crude protein, 0.1% ether extract and 4.81% ash. The metabolizable energy (ME) of the glycerol had previously been measured at 3,527 kcal/kg.. The composition of the experimental diets is shown in Table 1. The diets were formulated to provide nearly equal nutrient contents associated with the three levels of glycerol. The glycerol primarily replaced corn ...

Import Data And Price Of Crude Glycerol , www.eximpulse.com Eximpulse Services will provide you the latest and relevant market intelligence reports of Crude Glycerol Import Data. You can find live data of maximum number of ports of India which is based on updated shipment data of Indian Customs. Only previous two days data will be seen on website. You can use this Crude Glycerol import data for multiple kinds of analysis; lets say Import price, Quantity, market scenarios, Price trends, Duty optimization and many more. You can go through some of the sample shipment records for Crude Glycerol import data mentioned above. Here on Eximpulse Services you will get all kind of free sample as well as detailed reports of Export/ Import data as per your requirement. To get in touch for any kind of enquiry related to free sample or detailed report contact on +91-120-408-4957, +91-120-408-4958,+91-120-428-4019.. Data post 2012 as per Notification No.18/2012 - Customs(N.T.) and does not have names of Indian ...

The high sugar concentration in Icewine juice exerts hyperosmotic stress in the wine yeast causing water loss and cell shrinkage. To counteract the dehydration, yeast synthesize and accumulate glycerol as an internal osmolyte. In a laboratory strain of S. cerevisiae, STLl encodes for Stllp, an H+ /glycerol symporter that is glucose inactivated, but induced upon hyperosmotic stress. STLl, was found to be a highly upregulated gene in Icewine fermenting cells and its expression was 25-fold greater than in yeast cells fermenting diluted Icewine juice, making it one of the most differentially expressed genes between the two fermentation conditions. In addition, Icewine fermenting cells showed a two-fold higher glycerol production in the wine compared to yeast fermenting diluted Icewine juice. We proposed that Stllp is (1) active during Icewine fermentation and is not glucose inactivated and (2) its activity contributes to the limited cell growth observed during Icewine fermentation as a result of the ...

TY - JOUR. T1 - Thermodynamic analysis of glycerol dry reforming for hydrogen and synthesis gas production. AU - Wang, Xiaodong. AU - Li, Maoshuai. AU - Wang, Meihua. AU - Wang, Hao. AU - Li, Shuirong. AU - Wang, Shengping. AU - Ma, Xinbin. PY - 2009/11. Y1 - 2009/11. N2 - A thermodynamic analysis of glycerol dry reforming has been performed by the Gibbs free energy minimization method as a function of CO2 to glycerol ratio, temperature, and pressure. Hydrogen and synthesis gas can be produced by the glycerol dry reforming. The carbon neutral glycerol reforming with greenhouse gas CO2 could convert CO2 into synthesis gas or high value-added inner carbon. Atmospheric pressure is preferable for this system and glycerol conversion keeps 100%. Various of H2/CO ratios can be generated from a flexible operational range. Optimized conditions for hydrogen production are temperatures over 975 K and CO2 to glycerol ratios of 0-1. With a temperature of 1000 K and CO2 to glycerol ratio of 1, the production ...

In Italy, Bio-on and Greenergy International Limited have signed an agreement to begin a technical collaboration, the first in the United Kingdom, to look at the possibility of producing PHAs bioplastic from Glycerol, a biodiesel production co-product. The two companies will work together to establish the feasibility of building in the United Kingdom a 5,000 ton per year plant expandable to 10 thousand tons per year. Greenergys technical collaboration with Bio-on will investigate the potential to manufacture PHAs biopolymers from glycerol on an industrial scale in the UK. ...

China Industrial Glycerin 99.55% / Glycerol Prices, Find details about China Glycerol, Good Price for Glycerol Good Price from Industrial Glycerin 99.55% / Glycerol Prices - Dalian Chem Imp.& Exp. Group Co., Ltd.

The purpose of this study was to examine the effect of prior glycerol loading on competitive Olympic distance triathlon performance (ODT) in high ambient temperatures. Ten (3 female and 7 male) well-trained triathletes (VO2max = 58.4 ±2.4 ml-kg−1 min−1; best ODT time = 131.5 ± 2.6 min) completed 2 ODTs (1.5-km swim, 40-km bicycle, 10-km run) in a randomly assigned (placebo/ glycerol) double-blind study conducted 2 weeks apart. The wet-bulb globe temperature (outdoors) was 30.5 + 0.5 °C (relative humidity: 46.3 ± 1.1%; hot) and 25.4 + 0.2 °C (relative humidity: 51.7 ± 2.4%; warm) for day 1 and day 2, respectively. The glycerol solution consisted of 1.2 g of glycerol per kilogram of body mass (BM) and 25 ml of a 0.75 g · kg−1 BM carbohydrate solution (Gatorade®) and was consumed over a 60-min period, 2 hours prior to each ODT. Measures of performance (ODT time), fluid retention, urine output, blood plasma volume changes, and sweat loss were obtained prior to and during the ODT in ...

INTRODUCTION. Crude glycerin, a byproduct of biodiesel production, which consists of glycerol, water, fat, and minerals, has been studied as a potential energy source for poultry and pigs. The gross energy value of this byproduct, depending on its percentage of residual oil, is approximately 3600 kcal/kg (Lammers et al., 2008; Cerrate et al., 2006).. In order to use glycerol as an energy source for non-ruminant animals, it is essential to understand how this substance is metabolized. Glycerol utilization depends on the enzymes glycerol kinase and dehydroxiacetone phosphate dehydrogenase (Lin et al., 1976). When the capacity of these two enzymes is exceeded, glycerol is no longer used, and consequently, it is excreted from the body. It was observed in fasting animals that fatty acid and glycerol blood concentrations are similar, and therefore, it is assumed that both have similar distribution (Bergman, 1968). The dietary addition of glycerol favors the synthesis of glucose (Emmanuel & Robblee, ...

TY - JOUR. T1 - [2‐3H]GLYCEROL AS A PRECURSOR OF PHOSPHOLIPIDS IN RAT BRAIN. T2 - EVIDENCE FOR LACK OF RECYCLING. AU - Benjamins, Joyce A.. AU - McKhann, G. M.. PY - 1973/4. Y1 - 1973/4. N2 - Abstract- When [2‐3H]glycerol was injected intracranially into young rats, it was presented as a pulse label, leaving the brain rapidly and giving up much of its labelled hydrogen to water. [2‐3H]glycerol was efficiently incorporated into brain lipids, especially into choline and ethanolamine phospholipids. Following injection of a mixture of [3H]‐ and [14C]‐labelled glycerol, the ratio of 3H to 14C in the phospholipids of both whole brain and the microsomal fraction decreased as a function of time after injection. This finding indicated less recycling of the tritium label. This lack of recycling was further indicated by the finding that 94 per cent of the tritium label of phosphatidyl choline was in the glycerol portion of the molecule rather than in the fatty acids. At 2 weeks following ...

Hydrogen production by photocatalytic reforming of aqueous solutions of ethanol and glycerol was studied with the use of impregnated and embedded CuOx/TiO2 photocatalysts. Embedded [email protected] was prepared by a water-in-oil microemulsion method, which consists in the formation of Cu nanoparticles in the microemulsion followed by controlled hydrolysis and condensation of tetraisopropyl orthotitanate with the aim of covering the protected metal particles with a surrounding layer of porous titanium oxyhydroxide. Mild calcination leads to the complete removal of the organic residues, the crystallization of TiO2, and an unavoidable oxidation of copper. Two reference samples were prepared by classical wet impregnation of preformed TiO2 with different ratios of anatase, rutile, and brookite polymorphs. The two supports were prepared by sol−gel (TiO2−SG) and microemulsion (TiO2−ME) methods. Superior performances have been observed for the embedded system, which shows higher hydrogen production rates ...

TY - JOUR. T1 - Competition of glycerol with other oxidizable substrates in rat brain. AU - McKenna, M. C.. AU - Bezold, L. I.. AU - Kimatian, S. J.. AU - Tildon, J. T.. PY - 1986/1/1. Y1 - 1986/1/1. N2 - The rate of conversion of [1,3-14C]glycerol into 14CO2 was measured in the presence and absence of unlabelled alternative substrates in whole homogenates from the brains of young (4-6 and 18-20 days old) and adult rats. Unlabelled glucose decreased 14CO2 production from [1,3-14C]glycerol by about 40% at all ages studied. Unlabelled 3-hydroxybutyrate significantly decreased the 14CO2 production from both low (0.2 mM) and high (2.0 mM) concentrations of glycerol in 4-6- and 18-20-day-old rat pups. However, the addition of 3-hydroxybutyrate had no effect on the rate of 14CO2 production from 2.0 mM-glycerol in adult rats, suggesting that the interaction of 3-hydroxybutyrate with glycerol in adult rat brain is complex and may be related to the biphasic kinetics previously reported for glycerol ...

Global Glycerol Market is expected to reach USD 2.52 billion by 2020, according to a new study by Grand View Research, Inc. Biodiesel emerged as the leading source of glycerol, accounting for over 1,400 kilo tons of glycerol production in 2013. Growing application market coupled with increased production of oleochemicals in Asia Pacific is expected to augment glycerol demand over the forecast period.. Personal care and pharmaceuticals were the largest application segment, with glycerol consumption exceeding 870 kilo tons in 2013. However, food & beverage is expected to be the fastest growing application segment at an estimated CAGR of 8.4% from 2014 to 2020, owing to improving lifestyle in emerging economies leading to increased consumption of processed and packed foods.. Full Research Report on Global Glycerol Market Analysis ...

My recollection is that the formation of a phospholipid normally involves acylation of glycerol 3-phosphate. Glycerol 3-phosphate is a glycolytic intermediate, and so there is no actual phosphorylation of a glycerol; the phosphate on the glycerol will have come from the phosphorylation of glucose or of fructose 6-phosphate.. In a kinase reaction the oxygen of the -OH in the acceptor acts as a nucleophile at the P of the phosphate, so in terms of your question the O atom comes from the acceptor, not the donor. Presumably if there was a glycerol kinase (I expect there is) it would have the same mechanism so the O would come from the glycerol.. ...

A novel approach in the production of protein based films and composites were performed, using the bovine milk protein casein and regenerated cellulose fibres (lyocell). The films were prepared by first dissolving the casein protein in an aqueous alkaline solution in the presence of glycerol as a plasticizer. Further the composite films were prepared by the addition of fibres on aqueous alkaline solution with casein. The casein films and composites were thereafter prepared by casting the solution mixture on Teflon coated glass plate and drying for 48 hr. The effects of glycerol content and lyocell fibre reinforcements on the mechanical, thermal and physiological properties of the casein films were characterized. The results revealed that the increase in the addition of glycerol content decreases the tensile strength, youngs modulus, thermal stability of the film and increases the elongation percentage. Tensile property and thermal stability of the films was improved by the increase in the ...

During set up and the first ramp of thermal cycling, the enzyme is not active and misprimed primers are not extended. Once the PCR reaction reaches the optimal activation temperature, the chemical moiety is cleaved releasing the active TEMPase Hot Start DNA Polymerase, resulting in higher specificity, sensitivity and yield compared to standard Ampliqon Taq DNA polymerase.. Glycerol is normally a major part of the storage buffer of enzymes and acts as a cryoprotectant. Glycerol disrupts the water structure and makes the buffer more cell like, hence stabilising the polymerase. Glycerol is a highly viscous liquid and is therefore difficult and time-consuming to pipet accurately, especially in smaller volumes. As a consequence, pipetting glycerol in fast, robot-aided automation processes is almost an unsolvable challenge. Furthermore, the presence of glycerol in the enzyme buffer makes freeze drying impossible.. GLYCEROL FREE FOR AUTOMATION AND FREEZE DRYING. ...

High Quality Glycerol Supplier, FOODCHEM is Top Glycerol Supplier and Manufacturer in China for more than 10 years, Buy Glycerol Food Grade and Feed Grade at Foodchem

Define Diphosphatidyl glycerol. Diphosphatidyl glycerol synonyms, Diphosphatidyl glycerol pronunciation, Diphosphatidyl glycerol translation, English dictionary definition of Diphosphatidyl glycerol. n. A phospholipid usually obtained from beef heart, used in combination with phosphatidylcholine and cholesterol as an antigen to diagnose syphilis

We,China Isopropylidene glycerol Suppliers and China Isopropylidene glycerol Manufacturers, provide Isopropylidene glycerol product and the products related with China Isopropylidene glycerol

China Hot Sale Glycerol Price Manufacturer, Find details about China Glycerol, Glycerol Supplier from Hot Sale Glycerol Price Manufacturer - Dalian Chem Imp.& Exp. Group Co., Ltd.

Teknova offers custom molecular biology media such as buffers and reagents, pre-poured agar plates, dry culture media, liquid culture media, and media supplements.

Glycerol information & features Our glycerol can be widely used in many industries including food, chemical and cosmetic industry and et.We can offer not only sebacic acid but also glycerol. Glycerol is also called glycerin. The annual output