期刊
CARBOHYDRATE POLYMERS
卷 79, 期 1, 页码 180-183出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2009.07.044
关键词
Bupleurum chinense; Polysaccharide; Structure characterization; Antioxidant activity
资金
- national key technology RD program [2007BA138B02]
- Jilin Provincial scientific and technologic development project [200705403, 20070923]
- foundation for the development of science and technology of Jilin City [200813]
The water-soluble polysaccharide (BCPS-1) was isolated from Bupleurum chinense DC. BCPS-1 (M-w = 29 kDa) was composed of Ara; Gal; Glc with a molar ratio of 2.1:2.5:1. According to FT-IR, partial acid hydrolysis, periodate oxidation and Smith degradation, methylation and GC-MS analysis, the results indicate BCPS-1 had a backbone of (1 -> 5)-linked Ara, (1 -> 4)-linked Gal and (1 -> 3)-linked Gal residues with occasionally branches at O-6. The branches were composed of (1 -> 4)-linked Glc, and terminated with Gal residues. The in vitro antioxidant activity evaluated by DPPH radical scavenging method showed that BCPS-1 had a significant antioxidant effect in a concentration-dependent manner. (C) 2009 Elsevier Ltd. All rights reserved.
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