pentosann.

Brit.

/ˈpɛntə(ʊ)san/, U.S.

/ˈpɛn(t)əˌsæn/

Forms: 1800s– pentosan, 1900s– pentosane.

Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: pentose n., -an suffix.

Etymology: < pentose n. + -an suffix, after German Pentosan (C. Schulze & B. Tollens 1892, in Ann. der Chem. 271 55); compare glucosan n., hexosan n. at hexose n. Derivatives, etc. Compare French pentosane (1907 as pentozane).

Biochemistry.

A polysaccharide whose constituent monosaccharides are pentoses.Pentosans occur widely in plant tissues; examples include araban and xylan.

ΘΚΠ

the world > matter > chemistry > organic chemistry > carbohydrates > sugars > polysaccharides > [noun] > having pentoses as constituents

pentosan1892

1892 Jrnl. Chem. Soc. 62 1420 (heading) The pentosans of woody vegetable fibre.

1931 E. C. Miller Plant Physiol. viii. 420 The pentosans have the general formula (C₅H₈O₄)_n and occur, for the most part, in the cell walls of various plant parts.

1963 R. R. A. Higham Handbk. Papermaking ii. 34 The presence of pentosans in wood pulps helps to produce increased fibre bonding in paper.

1992 Internat. Jrnl. Food Sci. & Nutrition 43 40/1 Metabolism of cereal pentosans in the rat.

This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).

单词	pentosan
释义	pentosann. Brit. /ˈpɛntə(ʊ)san/, U.S. /ˈpɛn(t)əˌsæn/ Forms: 1800s– pentosan, 1900s– pentosane. Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: pentose n., -an suffix. Etymology: < pentose n. + -an suffix, after German Pentosan (C. Schulze & B. Tollens 1892, in Ann. der Chem. 271 55); compare glucosan n., hexosan n. at hexose n. Derivatives, etc. Compare French pentosane (1907 as pentozane). Biochemistry. A polysaccharide whose constituent monosaccharides are pentoses.Pentosans occur widely in plant tissues; examples include araban and xylan. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > polysaccharides > [noun] > having pentoses as constituents pentosan1892 1892 Jrnl. Chem. Soc. 62 1420 (heading) The pentosans of woody vegetable fibre. 1931 E. C. Miller Plant Physiol. viii. 420 The pentosans have the general formula (C₅H₈O₄)_n and occur, for the most part, in the cell walls of various plant parts. 1963 R. R. A. Higham Handbk. Papermaking ii. 34 The presence of pentosans in wood pulps helps to produce increased fibre bonding in paper. 1992 Internat. Jrnl. Food Sci. & Nutrition 43 40/1 Metabolism of cereal pentosans in the rat. This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022). < n.1892
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