Antioxidant activities of novel small-molecule polysaccharide fractions purified from Portulaca oleracea L.

被引：0
|
作者：
Yu-Ping Li
Li-Hua Yao
Guan-Jie Wu
Xiao-Fang Pi
Yan-Chun Gong
Ruo-Shong Ye
Chen-Xi Wang
机构：
[1] Jiangxi Science and Technology Normal University,School of Life science
来源：
Food Science and Biotechnology | 2014年 / 23卷
关键词：
L.; polysaccharide; antioxidant activity; hydroxyl radical; reactive oxygen specie;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Novel small-molecule polysaccharide fractions, named POP II and POP III, were purified from Portulaca oleracea L. with average Mw values of 9.25 and 8.03 kDa, respectively. Monosaccharide analysis revealed that POP II was composed of Rha, Ara, Man, Glc, and Gal with molar ratios of 1: 1.42: 0.44: 0.88: 1.59. POP III was composed of Rha, Ara, Glc, and Gal with molar ratios of 1: 1.16: 0.23: 0.59. The antioxidant activities of the fractions were evaluated using cell-free and cell-mediated radical generating systems. POPII and POP III possessed strong antioxidant activities in both systems. The 2 novel polysaccharide fractions extracted from P. oleracea L. can be developed as natural antioxidants for treatment of free radical-related diseases.
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页码：2045 / 2052
页数：7
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