Antioxidative activity of polysaccharide fractions isolated from Lycium barbarum Linnaeus

被引:323
作者
Lin, C. L. [2 ]
Wang, C. C. [1 ]
Chang, S. C. [1 ]
Inbaraj, B. Stephen [1 ]
Chen, B. H. [1 ,3 ]
机构
[1] Fu Jen Catholic Univ, Dept Food Sci, Taipei 242, Taiwan
[2] Cathay Gen Hosp, Dept Endocrinol & Metab, Taipei, Taiwan
[3] Fu Jen Catholic Univ, Grad Inst Med, Taipei 242, Taiwan
关键词
Lycium barbarum Linnaeus; Polysaccharide; Antioxidative activity; CHEMICAL-COMPOSITION; TEA; IDENTIFICATION; PURIFICATION; XANTHAN;
D O I
10.1016/j.ijbiomac.2009.04.014
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
070307 [化学生物学]; 071010 [生物化学与分子生物学];
摘要
Antioxidant activity of polysaccharide fractions isolated from Lycium barbarum Linnaeus was evaluated. Polysaccharides were extracted with boiling water, followed by precipitating with ethanol, protein hydrolysis, dialysis, and fractionation with a DEAE-Sepharose CL-6B column. A total of 4 fractions, including 1 neutral polysaccharide (LBPN) and 3 acidic polysaccharides were obtained, and compared with crude polysaccharide (CP), crude extract of polysaccharide (CE), deproteinated polysaccharide (DP), and deproteinated and dialyzed polysaccharide (DDP) for antioxidative activity. With the exception of CE and DDP, most polysaccharides were effective in scavenging DPPH and ABTS(center dot)* free radicals, superoxide anion and hydroxyl radical at 1000 mu g/mL. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:146 / 151
页数:6
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