Results 191 to 200 of about 52,041 (231)
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Xylose absorption test using D-xylose-14C
Clinical Biochemistry, 1972Summary 1. D-xylose-14C was used to measure oral xylose absorption in the investigation of malabsorption syndromes. The concentration of D-xylose-14C present in the 1 and 2 hour serum samples and the quantity of D-xylose and D-xylose-14C excreted in the urine in 5 hours were used as indices of xylose absorption. 2.
D M, Lyster +4 more
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Determination of the anomeric configuration of D-xylose with D-xylose isomerases
Carbohydrate Research, 1976Abstract The anomeric configuration of D -xylose, resulting from hydrolysis of β- D xylopyranosides by β- D -xylosidase from Bacillus pumilus , has been determined by an enzymic procedure, based on the stereospecificity of D -xylose isomerases. The initial hydrolysis product is α- D -xylose.
H, Kersters-Hilderson +3 more
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Repression of xylose utilization by glucose in xylose-fermenting yeasts
Canadian Journal of Microbiology, 1988The xylose-fermenting yeasts Pichia stipitis, Candida steatolytica, and Candida shehatae were subjected to fermentations in synthetic media containing mixtures of glucose and xylose. In all cases, repression of xylose uptake by glucose was observed, although the extent of repression was different with each yeast.
Chandra J. Panchal +3 more
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2021
Lignocellulosic (LC) feedstock is the most economical and renewable natural feedstock of chemicals and energy. It is primarily composed of lignin, cellulose, and hemicellulose which are woven together and render the biomass recalcitrant to degradation.
Rozina Rashid +2 more
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Lignocellulosic (LC) feedstock is the most economical and renewable natural feedstock of chemicals and energy. It is primarily composed of lignin, cellulose, and hemicellulose which are woven together and render the biomass recalcitrant to degradation.
Rozina Rashid +2 more
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Bioconjugate Chemistry, 2022
d-Xylonic acid (XA), derived from pentose sugar xylose, is a multifunctional high-value chemical with a wide range of applications in the fields of medicines, food, agriculture and is a valuable chemical reagent for the synthesis of other useful commodity chemicals. In the bacterial system, xylose dehydrogenase (XDH) catalyzes the oxidation of d-xylose
Lekshmi Sundar M. S. +1 more
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d-Xylonic acid (XA), derived from pentose sugar xylose, is a multifunctional high-value chemical with a wide range of applications in the fields of medicines, food, agriculture and is a valuable chemical reagent for the synthesis of other useful commodity chemicals. In the bacterial system, xylose dehydrogenase (XDH) catalyzes the oxidation of d-xylose
Lekshmi Sundar M. S. +1 more
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Applied Biochemistry and Biotechnology, 1989
The economic impact of conversion of xylose to ethanol for a wood-to-ethanol plant was examined, and the maximum potential reduction in the price of ethanol from utilization of xylose is estimated to be $0.42 per gallon from a base case price of $1.65.
Norman D. Hinman +3 more
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The economic impact of conversion of xylose to ethanol for a wood-to-ethanol plant was examined, and the maximum potential reduction in the price of ethanol from utilization of xylose is estimated to be $0.42 per gallon from a base case price of $1.65.
Norman D. Hinman +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 ...
Tsutomu Kodaki, Jin-Ho Seo
exaly +3 more sources
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 ...
Tsutomu Kodaki, Jin-Ho Seo
exaly +3 more sources
Xylose fermentation by Saccharomyces cerevisiae using endogenous xylose-assimilating genes
Biotechnology Letters, 2015To genetically engineer Saccharomyces cerevisiae for improved ethanol productivity from glucose/xylose mixtures.An endogenous gene cassette composed of aldose reductase (GRE3), sorbitol dehydrogenase (SOR1) and xylulose kinase (XKS1) with a PGK1 promoter and a terminator was introduced into two S.
Jin, Konishi +3 more
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Reduction of PDC1 expression in S. cerevisiae with xylose isomerase on xylose medium
Bioprocess and Biosystems Engineering, 2011Ethanol production using hemicelluloses has recently become a focus of many researchers. In order to promote D: -xylose fermentation, we cloned the bacterial xylA gene encoding for xylose isomerase with 434 amino acid residues from Agrobacterium tumefaciens, and successfully expressed it in Saccharomyces cerevisiae, a non-xylose assimilating yeast. The
Dong Min, Kim +9 more
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Evolution in Reverse: Engineering a
Xylitol (1) is a pentitol and is used not only as a sweetener but also as a platform chemical for the production of industrially important chemicals. As a sweetener, it has been shown to possess several favorable properties in comparison to other sugar substitutes, such as anticariogenicity, good gastrointestinal tolerance, low caloric content, and ...
Nikhil U, Nair, Huimin, Zhao
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