Results 201 to 210 of about 24,546 (228)

Calculation of metabolic flow of xylose in Lactococcus lactis

Journal of Bioscience and Bioengineering, 2007
A 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.
Hitomi, Ohara, Michiko, Owaki, Kenji, Sonomoto   +2 more
openaire   +2 more sources

D-Xylose metabolism in Rhodosporidium toruloides

Biotechnology Letters, 1997
Hofer et al. (Biochem. Biophys. Acta 1971. 252:1-12) presented circumstantial evidence that suggested that Rhodosporidium toruloides produced a xylose isomerase. We were unable to detect this activity in cell-free extracts of this yeast, however, xylose reductase and xylitol dehydrogenase activities were detected.
S.N. Freer, C.D. Skory, R.J. Bothast
openaire   +1 more source

Metabolic Engineering of Saccharomyces cerevisiae for Xylose Utilization

2001
Metabolic 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 ...
B, Hahn-Hägerdal, C F, Wahlbom, M, Gárdonyi, W H, van Zyl, R R, Cordero Otero, L J, Jönsson   +5 more
openaire   +2 more sources

Metabolic pathway analysis of the xylose-metabolizing yeast protoplast fusant ZLYRHZ7

Journal of Bioscience and Bioengineering, 2017
Xylose 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, Renpeng, Du, Gang, Song, Yuhuan, Zhang, Wenxiang, Ping   +4 more
openaire   +2 more sources

Effects of NADH-preferring xylose reductase expression on ethanol production from xylose in xylose-metabolizing recombinant Saccharomyces cerevisiae

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, Tsutomu, Kodaki, Yong-Cheol, Park, Jin-Ho, Seo   +3 more
openaire   +2 more sources

Metabolism of Xylose by the Lens of the Eye

1969
Interest 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 ...
openaire   +1 more source

D-Xylose Metabolism by Mutant Strains of Candida sp

1983
The first step in the metabolism of d-xylose by yeasts and mycelial fungi was found to be the reduction of d-xylose to xylitol, a reaction catalyzed by NADPH-linked d-xylose reductase. This step is followed by the oxidation of xylitol to d-xylulose which is catalyzed by NAD-linked xylitol dehydrogenase.
L D, McCracken, C S, Gong
openaire   +2 more sources

Xylose metabolism in Pachysolen tannophilus: purification and properties of xylose reductase

Canadian Journal of Microbiology, 1984
Xylose 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, Christian P. Kubicek, Wilfried Wöhrer, Max Röhr   +3 more
openaire   +1 more source

Kinetic Analysis and Comparison of Models of Xylose Metabolism byKlebsiella planticola

Biochemical and Biophysical Research Communications, 1996
A model for the degradation of xylose and ethanol production by Klebsiella planticola is proposed and compared with the exponential and Michaelis-Menten approaches. This model is based on the energy system diagrams and it is a simplified version of a previous model developed for the glucose and ethanol kinetics of the yeast Saccharomices cerevisiae. In
BASTIANONI, S., GASTALDELLI, A., BONECHI, C., MOCENNI, C., ROSSI, C.   +4 more
openaire   +5 more sources

Control of xylose metabolism in Escherichia coli

Biochimica et Biophysica Acta (BBA) - General Subjects, 1970
J D, David, H, Wiesmeyer
openaire   +2 more sources