Results 171 to 180 of about 53,903 (231)

D-xylose Testing

Journal of Clinical Gastroenterology, 1999
The literature on D-xylose testing has been reviewed, stressing advances in our understanding of absorption in general (including D-xylose absorption), the relationship of D-xylose testing to the development of excellent serologic tests for the diagnosis of celiac disease, the use of D-xylose testing in the evaluation of diarrhea in acquired ...
R M, Craig, E D, Ehrenpreis
openaire   +2 more sources

Xylose absorption test using D-xylose-14C

Clinical Biochemistry, 1972
Summary 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
openaire   +2 more sources

Determination of the anomeric configuration of D-xylose with D-xylose isomerases

Carbohydrate Research, 1976
Abstract 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
openaire   +2 more sources

Repression of xylose utilization by glucose in xylose-fermenting yeasts

Canadian Journal of Microbiology, 1988
The 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
openaire   +1 more source

Expression of a heterologous xylose transporter in a Saccharomyces cerevisiae strain engineered to utilize xylose improves aerobic xylose consumption

Applied Microbiology and Biotechnology, 2008
The goal of this investigation was to determine the effect of a xylose transport system on glucose and xylose co-consumption as well as total xylose consumption in Saccharomyces cerevisiae. We expressed two heterologous transporters from Arabidopsis thaliana in recombinant xylose-utilizing S. cerevisiae cells.
Nasib Qureshi   +2 more
exaly   +3 more sources

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