Composition analysis and antioxidant activity of polysaccharide from Dendrobium denneanum

被引：212

作者：

Fan, Yijun ^{[1
,3
]}

He, XingJin ^{[1
]}

Zhou, Songdong ^{[1
]}

Luo, Aoxue ^{[1
,3
]}

He, Tao ^{[2
]}

Chun, Ze ^{[2
]}

机构：

[1] Sichuan Univ, Coll Life Sci, Chengdu 610064, Peoples R China

[2] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China

[3] Sichuan Agr Univ, Dujiangyan 611830, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2009年 / 45卷 / 02期

关键词：

Dendrobium denneanum; Polysaccharide; Antioxidant activity; Composition; Free radicals; CAPACITY; IDENTIFICATION; EXTRACTS;

D O I：

10.1016/j.ijbiomac.2009.04.019

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：

Three polysaccharide fractions (DDP1-1, DDP2-1 and DDP3-1) were successfully purified from the crude polysaccharide of Dendrobium denneanum by DEAE-Cellulose and Sephadex G-200 column chromatography. The average molecular weights (Mws) of these fractions were 51.5, 26.1 and 6.95 kDa, respectively. Monosaccharide components analysis indicated that DDP1-1 and DDP2-1 were composed of arabinose, xylose, mannose, glucose and galactose in a molar ratio of 1.00:2.82:57.11:140.82:7.76 and 1.00:1.62:1.18:77.5:7.79. DDP3-1 was composed of arabinose, mannose, glucose and galactose in a molar ratio of 1.00:1.03:8.84:2.00. On the basis of antioxidant test in vitro, DDP2-1 exhibited the highest antioxidant ability among these samples. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：169 / 173

页数：5

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