xylose

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Xylose

A pentose sugar, referred to in the early literature as l -xylose. It is present in many woody materials. The polysaccharide xylan, which is closely associated with cellulose, consists practically entirely of d- xylose. Corncobs, cottonseed hulls, pecan shells, and straw contain considerable amounts of this sugar. This pentose sugar is also a component of the hemicelluloses and the rare disaccharide, primeverose. See Carbohydrate

xylose

[′zī‚lōs]
(biochemistry)
C5H10O5 A pentose sugar found in many woody materials; combustible, white crystals with a sweet taste; soluble in water and alcohol; melts about 148°C; used as a nonnutritive sweetener and in dyeing and tanning. Also known as wood sugar.
References in periodicals archive ?
API 50 CH fermentation patterns of isolated LAB from the control WCWS Items Group A Group B Group C ZZU 3 ZZU 21 ZZU 16 ZZU 8 L-Arabinose + + + + Ribose + w - + D-Xylose + + - + Galactose + + - - D-Glucose + + + + D-Fructose + + + + D-Mannose + + + + Mannitol - - - - Sorbitol - - - - [alpha]-Methyl-D-manno side - - - - [alpha]-Methyl-D-glucoside + + w - V-acetyl glucosamine + w + w Amygdaline - - + + Arbutine - w w w Esculine - - - - Salicine + w + w Cellobiose + + + + Maltose + + + + Lactose - w - - Melibiose + + - - Saccharose + + w + Trehalose + + + - Melezitose - - - - D-Raffinose + + - - Starch w - - - [beta]-Gentiobiose w w w - D-Turanose + + + - D-Arabitol - - - - Gluconate - - w w 5-ceto-gluconate - - w - Items Group D Group E Group F JCM ZZU 12 ZZU 23 ZZU 20 [5805.
The effect of cell density on the production of xylitol from D-xylose by yeasts.
Results: A significant reduction in the urinary excretion of INH and D-xylose in HIV-positive persons compared to healthy volunteers was observed.
Interpretation & conclusion: Decreased urinary excretion of D-xylose and INH are suggestive of intestinal malabsorption in HIV-positive individuals.
Plasma diamine oxidase, D-xylose, nitric oxide synthase, and NOx concentrations
LPS challenge could decrease D-xylose concentrations on d 20, and NOS concentrations on d 10 (p<0.
Kinetics and mechanism of Mn (II) catalyzed oxidation of D-Arabinose and D-xylose by chromium (vi) ions in perchloric acid medium".
The synthesis of 4-, 3-, and 2-0-[beta]-D-galactopyranosyl-D-xylose disaccharides (4-, 3-, and 2-galactosylxylose, respectively) was performed in 1 reaction step by enzymatic [beta]-D-galactosylation of D-Xylose, following our previous work on this topic (19-21).
At 3 h after LPS or saline injection, blood samples from the pigs given d-xylose solution were collected into heparinized vacuum tubes (Becton Dickinson vacutainer Systems, Franklin Lakes, NJ) and centrifuged (3,500xg for 10 min) to separate plasma.
Pyrazinamidase, CR-MOX agar, salicin fermentation-esculin hydrolysis, and D-xylose fermentation for identifying pathogenic serotypes of Yersinia enterocolitica.
No interfering peaks at m/z 253 were obtained with D-galactose, D-arabinose, D-ribose, and D-xylose.
At 21 days of age, performance, morphological characteristics of intestine, D-xylose level in plasma, activities of digestive enzymes in digesta, digestibility of nutrients and 5-bromo-2-deoxyuridine (BrdUrd)-labeling index of intestinal epithelial cells were determined.