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


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


(Elements & Compounds) any monosaccharide containing five atoms of carbon per molecule: occur mainly in plants and the nucleic acids
[C20: from penta- + -ose2]


(ˈpɛn toʊs)

a monosaccharide containing five atoms of carbon, as xylose, C5H10O5, or produced from pentosans by hydrolysis.
[< German (1890); see pent-, -ose2]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pentose - any monosaccharide sugar containing five atoms of carbon per molecule
monosaccharide, monosaccharose, simple sugar - a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates
References in periodicals archive ?
The occurrence of pentose residues in peptide hormones was initially suggested in the course of mass spectroscopic analysis of a defense peptide, TobHypSys, (63) but the molecular nature of the sugar moiety remained elusive.
3-7) Xylitol is a 5-carbon sugar, otherwise referred to as a pentose or pentitol sugar.
The inhibitors' action on pentose fermentation is an important step in the development of new energy processes using clean technologies.
Figure 6 provides a visualization of the altered reactions and pathways in glycolysis, the citric acid (TCA) cycle and pentose phosphate pathways.
However, the main disadvantage of this organism is lacking of mechanisms to take up pentose sugars as substrate.
It can be verified that xylose accounts for 20% of the TRS content at the beginning of the fermentation, and then this pentose starts to be consumed over time, although it is known that xylose can only be fermented by species of yeast others than Saccharomyces cerevisiae (RODRUSSAMEE et al.
Effects of cultivation conditions on the growth of the basidiomycete Coriolus hirsutus in a medium with pentose wood hydrolyzate.
An insect virus which is named after a genetic material which is named after a pentose monosaccharide which is named after another pentose monosaccharide which is named after a product from tree sap which is named after an ethnicity.
For example, upregulation of the pentose phosphate pathway (PPP) leads to generation of the ROS-quenching antioxidant glutathione.
1997) while studying the metabolic response to ration level in common carp (Cyprinus carpio), mentioned that the activities of pentose phosphate cycle dehydrogenases, glucose-6-phosphate dehydrogenase and phosphogluconate dehydrogenase were most susceptible to nourishing level.