Free radical scavenging activities of mushroom polysaccharide extracts

被引:854
作者
Liu, F [1 ]
Ooi, VEC [1 ]
Chang, ST [1 ]
机构
[1] CHINESE UNIV HONG KONG,DEPT BIOL,SHATIN,NT,HONG KONG
关键词
polysaccharide; mushroom; free radical; malondialdehyde dismutase; oxidative stress;
D O I
10.1016/S0024-3205(97)00004-0
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
The superoxide and hydroxyl radical scavenging activities of eight mushroom antitumor polysaccharide extracts were investigated using phenazin methosulphate-NADH-nitroblue tetrazolium system and ascorbic acid-Cu2+-cytochrome C system respectively. The results showed that six of eight mushroom polysaccharide extracts had superoxide and hydroxyl radical scavenging activities. The protein content of the polysaccharide extracts appeared to contribute a direct effect on free radical scavenging activity. However, none of the mushroom polysaccharide extracts had antioxidative activity as measured by detecting malondialdehyde (MDA) contents of liver microsomes.
引用
收藏
页码:763 / 771
页数:9
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