Antioxidant activity of sulfated polysaccharide fractions extracted from Undaria pinnitafida in vitro
Antioxidant activity of sulfated polysaccharide fractions extracted from Undaria pinnitafida in vitro
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裙带菜硫酸化多糖组分的体外抗氧化活性
DOI：
10.1016/j.ijbiomac.2009.12.004
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发表时间：
2010-03-01
影响因子：
8.2
通讯作者：
Wang, Shusheng
中科院分区：
文献类型：
--
作者：
Hu, Tingting;Liu, Dan;Wang, Shusheng
两个硫酸化多糖级分从裙带菜（Undaia pinnitafida）中分离得到两个多糖组分（S1和S2），并对其化学性质进行了测定。结果表明，两种硫酸化多糖均以鼠李糖为主要中性糖，硫酸根含量较高（33.99 ~ 34.29%）抗氧化活性测定表明，硫酸酯化多糖S1和S2具有较好的抗氧化活性，其抗氧化能力强于去硫酸酯化多糖DS-1和DS-2。(C)2009 Elsevier B V.保留所有权利。
Two sulfated polysaccharide fractions (S1 and S2) were successfully isolated from seaweed Undaia pinnitafida and the chemical characteristics were determined Antioxidant activities of the polysaccharide fractions were evaluated by assays of various antioxidants in vitro systems, including superoxide anion, 2,2-diphenyl-1-picrylhydrazyl (DPPH), hydroxyl radical-scavenging activity and metal chelating ability The results showed that the two sulfated polysaccharides contained rhamnose as the major neutral sugar and present high sulfate content (33 99-34 29%) Antioxidant assays suggested that the two sulfated polysaccharide fractions (SI and S2) possessed good antioxidant properties and had stronger antioxidant abilities than de-sulfated polysaccharides (DS-1 and DS-2) Available data obtained by in vitro models suggested that the correlation between the sulfate content and antioxidant activity was positive. (C) 2009 Elsevier B V. All rights reserved.