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An Acidic Polysaccharide from Tribulus terrestris

HaiShengCHEN、WingNangLEUNG

2002中国化学快报：英文版Biochemistry, Genetics and Molecular Biology被引 1

摘要

An aqueous acidic polysaccharide, named rhamnogalacturonan (designated as TIP-D2) was isolated from Tribulus terrestris L by means of DEAE-cellulose chromatography and gel filtration. The molecular mass of TTP-D2 was estimated to be 26 KDa by gel filtration.TTP-D2 is composed of galacturonic acid, rhamnose, arabinose, galactose,fucose,mannose,xylose and glucose in a ratio of 71.4:13.5:5.6:4.9:3.1:1.9:1.9:1.0. The main chain structure of TTP-D2 was elucidated as an acidic hetero-polysaccaride with the connection of α-(1-4) galacturonic acid with α-（1-3) rhamnose by GC analysis of partially hydrolyzed products and determination of ^1H,^13C-NMR spectra.

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