Citation: Hai Sheng CHEN, Wing Nang LEUNG, Yi Xin XU. An Acidic Polysaccharide from Tribulus terrestris[J]. Chinese Chemical Letters, ;2002, 13(7): 625-628. shu

An Acidic Polysaccharide from Tribulus terrestris

1.
Collage of Pharmacy, Second Military Medical University, Shanghai 200433;
2.
Department of Biology, Hong Kong Baptist University, Hong Kong

Received Date: 17 September 2001

An aqucous acidic polysaccharide, named rhamnogalacturonan (designated as TTP-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, mannosc, 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-polysaccharidc with the connection of α-(l-4) galacturonic acid with α-(1-3) rhamnose by GC analysis of partially hydrolyzed products and the determination of ¹H, ¹³C-NMR spectra.
- Tribulus terrestris L.,
- rhamnogalacturonan,
- structural characterization
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