Results 231 to 240 of about 45,599 (268)
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Calculation of metabolic flow of xylose in Lactococcus lactis
Journal of Bioscience and Bioengineering, 2007A circuit diagram is proposed on the basis of an analysis of metabolic pathways of lactic acid bacteria, namely, a phosphoketolase pathway and a pentose phosphate/glycolic pathway. An augmented matrix was derived from carbon balances and stoichiometries from the circuit diagram, and solved by Gaussian elimination.
Michiko Owaki +2 more
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Metabolism of d-xylose in Schizosaccharomyces pombe cloned with a xylose isomerase gene
Applied Microbiology and Biotechnology, 1989The Escherichia coli xylose isomerase gene was transformed into Schizosaccharomyces pombe for direct d-xylose utilization. In order to understand d-xylose metabolism and determine the limiting factors on d-xylose utilization by the transformed yeast, d-xylose transport, xylose isomerization, and xylulose phosphorylation were investigated.
Li Fu Chen, Err-Cheng Chan, P. P. Ueng
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Xylose metabolism in Pachysolen tannophilus: purification and properties of xylose reductase
Canadian Journal of Microbiology, 1984Xylose reductase (xylitol: NADP oxidoreductase, EC 1.1.1.139) has been purified from D-xylose grown cells of the yeast Pachysolen tannophilus by application of DEAE-cellulose ion exchange chromatography, 2′,5′-ADP-Sepharose affinity chromatography, Biogel P200 gel filtration, and dextran blue Sepharose chromatography to approximately 95% homogeneity ...
Günther Ditzelmüller +3 more
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Metabolic pathway analysis of the xylose-metabolizing yeast protoplast fusant ZLYRHZ7
Journal of Bioscience and Bioengineering, 2017Xylose is the second major fermentable sugar present in hard woods and herbs (after d-glucose). Therefore, efficient conversion of xylose to ethanol is essential for the commercialization of lignocellulosic ethanol, which may provide an ideal alternative to fossil fuels in the future.
Jingping Ge +4 more
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Metabolic Engineering of Saccharomyces cerevisiae for Xylose Utilization
2001Metabolic engineering of Saccharomyces cerevisiae for ethanolic fermentation of xylose is summarized with emphasis on progress made during the last decade. Advances in xylose transport, initial xylose metabolism, selection of host strains, transformation and classical breeding techniques applied to industrial polyploid strains as well as modeling of ...
Leif J. Jönsson +5 more
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Xylose metabolism by Candida shehatae in continuous culture
Applied Microbiology and Biotechnology, 1988Xylose metabolism by Candida shehatae in continuous culture was examined under both fully-aerobic and semi-aerobic conditions. Growth did not occur in the absence of respiration. Under fully-aerobic conditions, the cell yield was constant at 0.51 g/g and the specific respiration rate Qo2was linearly related to the specific growth rate μ with a slope of
Thomas W. Chapman +2 more
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Metabolism of Xylose by the Lens of the Eye
1969Interest in the metabolism of xylose by the lens stems from the finding, by Darby and Day in 1940, that this sugar when fed to weanling rats, rapidly causes cataract (an opaque lens). It had earlier been shown by Mitchell and Dodge in 1935 that galactose was similarly cataractogenic, and the third type of these so-called “sugar”cataracts is brought ...
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Strain engineering of Saccharomyces cerevisiae for enhanced xylose metabolism
Biotechnology Advances, 2013Efficient and rapid fermentation of all sugars present in cellulosic hydrolysates is essential for economic conversion of renewable biomass into fuels and chemicals. Xylose is one of the most abundant sugars in cellulosic biomass but it cannot be utilized by wild type Saccharomyces cerevisiae, which has been used for industrial ethanol production ...
Yong Su Jin +3 more
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Journal of Biotechnology, 2012
Efficient conversion of xylose to ethanol is an essential factor for commercialization of lignocellulosic ethanol. To minimize production of xylitol, a major by-product in xylose metabolism and concomitantly improve ethanol production, Saccharomyces cerevisiae D452-2 was engineered to overexpress NADH-preferable xylose reductase mutant (XR(MUT)) and ...
Sung-Haeng Lee +3 more
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Efficient conversion of xylose to ethanol is an essential factor for commercialization of lignocellulosic ethanol. To minimize production of xylitol, a major by-product in xylose metabolism and concomitantly improve ethanol production, Saccharomyces cerevisiae D452-2 was engineered to overexpress NADH-preferable xylose reductase mutant (XR(MUT)) and ...
Sung-Haeng Lee +3 more
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Journal of Biotechnology, 2010
Xylose-fermenting Saccharomyces strains are needed for commercialization of ethanol production from lignocellulosic biomass. Engineered Saccharomyces cerevisiae strains expressing XYL1, XYL2 and XYL3 from Pichia stipitis, however, utilize xylose in an oxidative manner, which results in significantly lower ethanol yields from xylose as compared to ...
Ki Sung Lee +6 more
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Xylose-fermenting Saccharomyces strains are needed for commercialization of ethanol production from lignocellulosic biomass. Engineered Saccharomyces cerevisiae strains expressing XYL1, XYL2 and XYL3 from Pichia stipitis, however, utilize xylose in an oxidative manner, which results in significantly lower ethanol yields from xylose as compared to ...
Ki Sung Lee +6 more
openaire +3 more sources