In vitro antioxidant activities of a water-soluble polysaccharide derived from Dendrobium nobile Lindl. extracts

被引：136
作者：
Luo, AoXue [1 ,3 ]
He, XingJin [1 ]
Zhou, SongDong [1 ]
Fan, YiJun [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 / 04期
关键词：
Dendrobium nobile Lindl; Polysaccharide; Monosaccharides composition; Structure; Free radicals; Antioxidant activities; STRUCTURAL-CHARACTERIZATION; IMMUNOSTIMULATORY ACTIVITY; SESQUITERPENE GLYCOSIDES; CAPACITY; VIVO; PHENANTHRENES; ANTITUMOR; FEATURES; FUNGUS;
D O I：
10.1016/j.ijbiomac.2009.07.008
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：
A water-soluble polysaccharice (DNP), isolated from the aqueous extracts of the stem of Dendrobium nobile Lindl., was found to have an average molecular weight (Mw) of about 8.76 x 10(4) Da. Monosaccharides analysis revealed that DNP was composed of rhamnose, arabinose, xylose, mannose, glucose and galactose in a molar ratio of 1.00:2.80:2.20:30.76:117.96:31.76. The evaluation of antioxidant activity in vitro revealed that DNP is a novel potential antioxidant. The NMR spectra suggested that the main structure of DNP was possible as (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：359 / 363
页数：5
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