pentose


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

pentose

 [pen´tōs]
a monosaccharide containing five carbon atoms in a molecule.

pen·tose

(pen'tōs),
A monosaccharide containing five carbon atoms in the molecule; for example, arabinose, lyxose, ribose, xylose, xylulose.

pentose

/pen·tose/ (pen´tōs) a monosaccharide containing five carbon atoms in a molecule.

pentose

(pĕn′tōs′, -tōz′)
n.
Any of a class of monosaccharides having five carbon atoms per molecule and including ribose and several other sugars.

pentose

[pen′tōs]
Etymology: Gk, pente, five; L, osus, having
a monosaccharide made of carbohydrate molecules, each containing five carbon atoms. It is produced by the body and is elevated after the ingestion of certain fruits, such as plums and cherries, and in certain rare diseases.

pen·tose

(pen'tōs)
A monosaccharide containing five carbon atoms in the molecule.

pentose

A sugar with five carbon atoms in each molecule. The ‘backbone’ of DNA on each side of the helix consists of a chain of pentose sugars alternating with phosphate groups. The sugar in DNA is 2-deoxyribose, and in RNA is ribose. The NUCLEOTIDE chain is formed by linking the 5’ position of one pentose ring to the 3’ position on the next via a phosphate group. 5’ and 3’ are used to indicate the ends of a DNA fragment and the directions in which the ‘backbones’ run.

pentose

a monosaccharide with five carbon atoms.

pentose

a monosaccharide containing five carbon atoms in a molecule.

pentose cycle
see pentose phosphate pathway (below).
pentose phosphate pathway
called also pentose cycle; see pentose phosphate pathway.
References in periodicals archive ?
The biotransformation of these pentoses into ethanol is one of the most important scientific and technological challenges requiring solution (Rossel, 2006; Silva, Mussatto, Roberto, & Teixeira, 2011; 2012).
Growth and ethanol fermentation ability on hexose and pentose sugars and glucose effect under various conditions in thermotolerant yeast Kluyveromyces marxianus.
downregulates the pentose phosphate pathway to decrease glutathione and ribose production
Cellulose is a polymer of glucose while hemicellulose ispredominantly composed of xylans which, after hydrolysis, yield the pentose sugar and xylose [7].
In aging occur changes in erythrocytes characteristic for apoptosis, such as decrease in affinity to hemoglobin, decrease in activity of enzymes of glycolytic cycle and pentose cycle, oxidation and fragmentation of proteins.
The enzyme G6PD is involved in the pentose phosphate pathway which is essential for red cell metabolism.
Even among the driest wines, it is rare to find wines with less than 1 gram per liter of residual sugar, due to the unfermentability of certain types of sugars, such as pentose, a monosaccharide.
GSH-dependent detoxification involves glutathione peroxidase (GSHx), which has a pivotal role in the elimination of hydrogen and organic peroxides and leads to the formation of oxidized glutathione but is reduced back to its thiol form (GSH) by glutathione reductase (GSHr), leading to the consumption of NADPH, which is chiefly formed by pentose phosphate pathway.
Gorwa-Grauslund, Stress-related challenges in pentose fermentation to ethanol by the yeast Saccharomyces cerevisiae, Biotechnology journal, 6(3), 286-99 (2011).