• In contrast, in the defined sugar mixture and WSH, the pentoses were consumed faster than glucose. (biomedcentral.com)
  • Production of glycolipid biosurfactants, mannosylerythritol lipids, from pentoses and d-glucose/d-xylose mixtures by Pseudozyma yeast strains. (scielo.br)
  • Hexoses and pentoses are generally converted to C 2 and C 3 intermediates and to reduced electron carriers (e.g. (fao.org)
  • generate pentoses from hexoses - 2. (studylib.net)
  • generate hexoses from pentoses (gluconeogenesis) - 3. (studylib.net)
  • The inherently higher robustness and tolerance of S. cerevisiae to various inhibitors gives it a head start in programs aimed at developing strains with extreme inhibitor tolerance, able to efficiently ferment hexoses and pentoses in concentrated lignocellulose hydrolysates [ 6 ]. (biomedcentral.com)
  • The aim of this study was to quantify uptake of pentose and hexose monosaccharides in an industrial substrate and to present a kinetic growth model of C. saccharolyticus that includes sugar uptake on defined and industrial media. (biomedcentral.com)
  • Moreover, the observation indicates a regulation system that has fundamental research relevance, since pentose and glucose uptake in C. saccharolyticus has only been described with ABC transporters, whereas previously reported diauxic growth phenomena have been correlated mainly to PTS systems for sugar uptake. (biomedcentral.com)
  • The different materials in environment were source for pentose-assimilating yeast with variable metabolic profile. (scielo.br)
  • 2 2 Webb SR, Lee H. Regulation of d-xylose utilization by hexoses in pentose-fermenting yeasts. (scielo.br)
  • However the yield has not reached a satisfactory level for industrial applications On the other hand, pentose-assimilating yeasts can be used for obtainment of high aggregate value products. (scielo.br)
  • The pentose-assimilating capacity of yeasts Pseudozyma antarctica PYCC 5048 T , P. aphidis PYCC 5535 T and P. rugulosa PYCC 5537 T and production of a glycolipid biosurfactant was demonstrate 3 3 Faria NT, Santos MV, Fernandes P, Fonseca LL, Fonseca C, Ferreira FC. (scielo.br)
  • Unfortunately, baker's yeast is unable to efficiently metabolize pentose sugars, particularly D-xylose, which accounts for up to 35% of total sugars in xylan-rich lignocellulosic biomass such as hard woods and straw [ 3 ]. (biomedcentral.com)
  • Microorganisms such as acetogens, carboxytrophs and methanogens are able to utilize the CO2 + H2, and/or CO available in such syngas as their sole source of carbon and energy for growth as well as the production of biofuels and other valuable products. (banksolar.ru)
  • Mesophilic microorganisms are not capable of producing H 2 at high yield being it reported in the range of 1-2 mol H 2 /mol hexose [ 4 ]. (biomedcentral.com)
  • The carbon dioxide that plants absorb as they grow offsets some of the carbon dioxide emitted when ethanol made from them is burned, so cellulosic ethanol fuel has the potential to have a lower carbon footprint than fossil fuels. (wikipedia.org)
  • This phenomenon suggested a diauxic-like behavior as was deduced from the successive appearance of two peaks in the hydrogen and carbon dioxide productivity. (biomedcentral.com)
  • The English "yeast" and the Dutch "gist" are derived from the Greek term zestos which means boiled, a reference to the bubbling foam caused by the evolution of carbon dioxide. (biologydiscussion.com)
  • temperature exposure [Term] id: XCO:0000012 name: air carbon dioxide content def: "A condition in which the level of carbon dioxide in the air surrounding the organism or breathed by the organism is controlled as part of the experiment. (mcw.edu)
  • Carbon dioxide emission in the biosphere is attributed to two sources, one biological and the other industrial. (banksolar.ru)
  • Industrial carbon dioxide emission is mainly from the exhaust gases of industrial processes. (banksolar.ru)
  • Where carbon dioxide occurs in high concentration in such processes, the carbon dioxide in the exhaust gas can be trapped and then recovered for uses as a raw material. (banksolar.ru)
  • However, carbon dioxide released from automobiles, for example, is too diluted to be trapped for recovery. (banksolar.ru)
  • A counter-measure against the elevation of carbon dioxide in the atmosphere is to strengthen the path of carbon dioxide recycling through photosynthesis and then efficiently utilize the plant biomass formed as a result. (banksolar.ru)
  • High energy crops native to South East Asia (and Africa and South America) are therefore desirable tools for the counter-measure to carbon dioxide elevation. (banksolar.ru)
  • We discuss the historical relevance and the benefits of pulque consumption, its chemical and nutritional properties, including the health benefits associated with diverse lactic acid bacteria with probiotic potential isolated from the beverage. (frontiersin.org)
  • Partial breakdown into lactic acid or ethanol and CO2 Note: Bacteria have many different pathways for carbohydrate metabolism based on the enzymes they are able to produce. (studylib.net)
  • Recently, LC-MS/MS approaches have also been applied to the identification of proteins and proteotypic peptides of lactic acid bacteria in fermented food matrices. (bvsalud.org)
  • Here, we developed an innovative nanoLC-ESI-MS/MS-based methodology for profiling lactic acid bacteria in commercial and artisanal milk kefir products as well as in kefir grains at the genus, species and subspecies level. (bvsalud.org)
  • An overview of the composition of lactic acid bacteria was also obtained for unlabelled kefir highlighting, for the first time, the great potential of LC-MS/MS as a sensitive tool to assess the authenticity of fermented foods. (bvsalud.org)
  • The experimental data included four different cases: glucose, xylose, sugar mixture, and wheat straw hydrolysate (WSH) fermentations. (biomedcentral.com)
  • The substrate uptake rate of C. saccharolyticus on single sugar-defined media was higher on glucose compared to xylose. (biomedcentral.com)
  • Yeasts able to convert xylose into ethanol have been described like as Scheffersomyces (Pichia) stipitis, S. (Candida) shehatae and Pachysolen tannophilus . (scielo.br)
  • Nevertheless, the yield achieved resembles the xylose-fermenting species, the xylose utilization is slow and occurs only after glucose exhaustion. (scielo.br)
  • The production of bioethanol from lignocellulose hydrolysates requires a robust, D-xylose-fermenting and inhibitor-tolerant microorganism as catalyst. (biomedcentral.com)
  • Although there are various species of bacteria, filamentous fungi and other yeast species that are naturally capable of efficiently metabolizing D-xylose, they lack the other crucial advantages of the yeast S. cerevisiae , which have made it the most prominent industrial microorganism. (biomedcentral.com)
  • The purpose of the present work was to develop such a strain from a prime industrial yeast strain, Ethanol Red, used for bioethanol production. (biomedcentral.com)
  • An industrial yeast strain for bioethanol production with lignocellulose hydrolysates has been developed in the genetic background of a strain widely used for commercial bioethanol production. (biomedcentral.com)
  • Yeasts lack chlorophyll and are unable to manufacture by photosynthesis from inorganic substrates the organic compounds required for growth, as do higher plants, algae, and even some bacteria. (biologydiscussion.com)
  • For instance, the transformation of plants with a yeast-derived invertase targeted to different subcellular compartments has led to the elucidation of several key aspects of sugar metabolism, including phloem loading mechanisms, the regulation of photosynthesis by sugars, the importance of sugar-metabolism compartmentation with regards to sucrose biosynthesis, storage and distribution, as well as the role of cell-wall invertase in phloem unloading and sink strength. (sun.ac.za)
  • MALDI-TOF MS proved to be useful for the detection/identification of bacteria in clinical diagnostics and agri-food applications. (bvsalud.org)
  • The French chemist, Henri Braconnot, was the first to discover that cellulose could be hydrolyzed into sugars by treatment with sulfuric acid in 1819. (wikipedia.org)
  • Background Composting is a special global carbon cycle which sustains various microbes engendering the cellulose degradation. (researchsquare.com)
  • Cellulose is something we don ‗ t normally think of as sugar but it ends in ose so is therefore a suga r. (50webs.com)
  • In this study, pomace from conventionally grown apples (Malus Domestica) of the Ligol cultivar were fermented with selected LAB strains (Lpb. (bvsalud.org)
  • Most anaerobic bacteria undergo hexose metabolism via the Emden-Meyerhof-Parnas pathway (EMP) which produces pyruvate as an intermediate along with NADH. (fao.org)
  • The genetic transformation of plants and the subsequent development of transgenic lines with disturbed sugar metabolism have made an unprecedented impact on the study of sugar translocation and -partitioning. (sun.ac.za)
  • Combining experimental results from batch fermentations with genome analysis, reconstruction of central carbon metabolism and metabolic flux analysis (MFA), this study shed light on glucose catabolism of the thermophilic alkalitolerant bacterium C. celer . (biomedcentral.com)
  • In addition, global warming has led to an increase in temperature of water, which has affected the normal lifecycles of bacteria and algae, mainly by increasing the duration of bloom seasons. (ncsu.edu)
  • Slower absorption also allows the body to utilize complex sugars for energy instead of having to store them as fat for later use. (50webs.com)
  • The unique structure of complex sugars allows them to be absorbed and broken down more sl owly than simple sugars, avoiding rapid spikes in blood glucose. (50webs.com)
  • These factors include sugar transporters and invertases as well as metabolites, including sucrose and glucose, which function as signalling molecules to modulate gene expression. (sun.ac.za)
  • For a biotechnological exploitation of this bacterium for H 2 production it is crucial to understand the factors that regulate carbon and electron fluxes and therefore the final distribution of metabolites to channel the metabolic flux towards the desired product. (biomedcentral.com)
  • Lb. sakei group members and S. cerevisiae through bidirectional nutrient dependencies, and further underlined that these bacteria compete with the yeast over nutrients to a lesser extent than the rest LAB species. (bvsalud.org)
  • These raw materials for ethanol production have the advantage of being abundant and diverse and would not compete with food production, unlike the more commonly used corn and cane sugars. (wikipedia.org)
  • Transcript levels of the sucrose transporter NtSUT1 and hexose transporter NtMST1 encoding genes increased significantly in the source leaves and roots of Vac-Inv lines, whereas increased NtMst1 transcript levels were also detected in the roots of Apo-Inv lines. (sun.ac.za)
  • In the second stage, hydrogen-producing acetogenic bacteria convert the higher volatile fatty acids e.g., propionic and butyric acids, produced, to H 2 , CO 2 , and acetic acid. (fao.org)
  • Yeasts possess rather rigid, thick cell walls, have a well-organized nucleus with a nuclear membrane (eukaryotic), and have no motile stages. (biologydiscussion.com)
  • Our analysis of this data reveals an absolute protein-to-RNA ratio of 10 2 -10 4 for bacterial populations and 10 3 -10 5 for an archaeon, which is more comparable to Eukaryotic representatives' humans and yeast. (nature.com)
  • Furthermore, the transcriptional responses of B5 at different temperature by using rice straw as sole carbon sources were also analyzed, based on which the mechanism of lignocellulose degradation at high temperature was revealed that B5 could resist the heat by up-regulating the heat shock proteins (HSP) and then secrete various Carbohydrate-Active enzymes (CAZymes) to realize energy balance. (researchsquare.com)
  • These pre-treatments are designed to allow the carbohydrate portion of the biomass to be broken down into simple sugars, for example by en-zymatic hydrolysis using exogenously added cellulases to release fermentable sugars [ 12 ]. (banksolar.ru)
  • This process produces a translucent syrup that's an alternative to white and brown sugar. (50webs.com)
  • In fact, even from an industrial viewpoint they are confusing, for yeast considered as a cultivated organism in one industry, for example- brewery yeast, may well be considered to be wild yeast by bakers. (biologydiscussion.com)
  • At present, many taxonomists are in agreement with the arrangement proposed by Ainsworth in which the fungi are treated as a separate kingdom and the yeasts are included in the division Eumycota. (biologydiscussion.com)
  • While the definition of yeasts varies somewhat according to author, they are generally defined as fungi which, in a stage of their life cycle, occur as single cells, reproducing commonly by budding or less frequently by fission. (biologydiscussion.com)
  • The distinction of yeasts from related mycelial fungal forms is highly subjective, resulting in a number of transitional forms between yeasts and the more typical higher fungi. (biologydiscussion.com)
  • In this study, a similar strategy of transgenic plant analysis was employed to expand our insight into the regulation of sugar partitioning. (sun.ac.za)
  • All 6 ADHs are expressed, and Cphy3925 and Cphy1029 are among the most highly expressed proteins on all tested carbon sources (19, 39). (researchgate.net)
  • Biomass is a renewable, unevenly geographically distributed resource that can be consid-ered sustainable and carbon-neutral if properly managed. (banksolar.ru)
  • Hence the total en-ergy fixed by biomass is estimated to be 13.5×107 kcal/ha year, this being equiva-lent to 15 tons of fuel. (banksolar.ru)
  • The fermented material was then subjected to ultrasound-assisted extraction, and the resulting extracts were analysed for their composition (phenolic compounds, triterpenoids, simple organic acids), and antioxidant activity. (bvsalud.org)
  • Transgenic lines overproducing the yeast-derived invertase in either the vacuole (Vac-Inv) or apoplast (Apo-Inv) were utilised to analyse the effect of the altered sugar levels in sink and source organs on the expression of sugar transporters, as well as the endogenous cell wall invertase and inhibitors in these plants. (sun.ac.za)
  • At high P H2 the cellular redox state was balanced by rerouting the flow of carbon and electrons to ethanol and formate production allowing unaltered glycolytic flux and growth rate, but resulting in a decreased H 2 synthesis. (biomedcentral.com)
  • Brown Rice Syrup is made by fermenting brown rice with special enzymes that break down the natural starch content of the rice. (50webs.com)
  • plantarum KKP 1527 was about 30% higher than that of non-fermented AP extracts, (2) extracts of AP fermented with Lpb. (bvsalud.org)
  • Unlike soluble fiber, insoluble fiber does not feed undesirable bacteria well and is not readily fermented into short chain fatty acids. (50webs.com)
  • Industrial terms such as "cultured, true, wild, top, or bottom yeasts" have little meaning from the botanical point of view. (biologydiscussion.com)
  • We found that: (1) the total phenolic content of AP extracts fermented with Lpb. (bvsalud.org)