(2-O-alpha-D-galactopyranosyl-4-O-methyl-alpha-D-glucurono)-D-xylan from Eucalyptus globulus Labill
authors Shatalov, AA; Evtuguin, DV; Neto, CP
journal CARBOHYDRATE RESEARCH
author keywords (2-O-alpha-D-galactopyranosyl-4-O-methyl-alpha-D-glucurono)-D-xylan; Eucalyptus globulus Labill; structural analysis
keywords METHYLATION ANALYSIS; POLYSACCHARIDES; ACID; PURIFICATION; SPECTROSCOPY; HETEROXYLAN; CELLULOSE; CELLS; FIBER; BRAN
abstract An unusual heteroxylan composed of galactosyl, 4-O-methyl-glucuronosyl and xylosyl residues with molar ratio 1:3:30 was isolated from the wood of Eucalyptus globulus Labill. The results of linkage analysis, supported by data of H-1, 2D H-1-H-1 COSY and C-13 NMR spectroscopy, revealed that the polysaccharide is a (2-O-alpha-D-galactopyranosyl-4-O-methyl-alpha-D-glucurono)-D-xylan with a (1-->4)-linked beta-D-xylopyranosyl backbone branched at O-2 by short side chains composed of terminal 4-O-methyl-alpha-D-glucuronic acid and of 4-O-methyl-alpha-D-glucuronic acid substituted at O-2 with alpha-D-galactose. (C) 1999 Elsevier Science Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0008-6215
year published 1999
volume 320
issue 01-fev
beginning page 93
ending page 99
digital object identifier (doi) 10.1016/S0008-6215(99)00136-6
web of science category Biochemistry & Molecular Biology; Chemistry, Applied; Chemistry, Organic
subject category Biochemistry & Molecular Biology; Chemistry
unique article identifier WOS:000082901000010
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journal impact factor 1.841
5 year journal impact factor 1.973
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