A NOVEL L-FUCO-4-O-METHYL-D-GLUCURONO-D-XYLAN FROM HYPTIS-SUAVEOLENS

被引：21

作者：

ASPINALL, GO

CAPEK, P

CARPENTER, RC

GOWDA, DC

SZAFRANEK, J

机构：

[1] Department of Chemistry, York University, North York, Toronto

来源：

CARBOHYDRATE RESEARCH | 1991年 / 214卷 / 01期

关键词：

D O I：

10.1016/S0008-6215(00)90534-2

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The acidic polysaccharide from the seed-coat mucilage of Hyptis suaveolens is a highly branched L-fuco-4-O-methyl-D-glucurono-D-xylan for which a structure is proposed having a 4-linked beta-D-xylan backbone carrying side chains of single 4-O-methyl-alpha-D-glucuronic acid residues at O-2 and 2-O-L-fucopyranosyl-D-xylopyranose units at O-3. The structural analysis involves base-catalyzed beta-elimination of uronic acid residues from the methylated glycan followed by degradation using a modified Svensson oxidation-elimination sequence.

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页码：107 / 113

页数：7

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