Antioxidant properties of methanolic extracts from Diospyros mespiliformis (jackal berry), Flacourtia indica (Batoka plum), Uapaca kirkiana (wild loquat) and Ziziphus mauritiana (yellow berry) fruits

被引:24
|
作者
Ndhlala, Ashwell R. [1 ]
Chitindingu, Kuda [1 ]
Mupure, Chipo [1 ]
Murenje, Tapiwa [1 ]
Ndhlala, Farai [2 ]
Benhura, Mudadi A. [1 ]
Muchuweti, Maude [1 ]
机构
[1] Univ Zimbabwe, Dept Biochem, Harare, Zimbabwe
[2] Open Learning Ctr, Dept Stat, Harare, Zimbabwe
来源
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY | 2008年 / 43卷 / 02期
关键词
antioxidant; free radical; phenolic acids; wild fruits;
D O I
10.1111/j.1365-2621.2006.01431.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Four wild fruits, Diospyros mespiliformis, Flacourtia indica, Uapaca kirkiana and Ziziphus mauritiana, were extracted with methanol and analysed for radical-scavenging effect of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical, reducing power and anion radical effect on superoxide anion using colorimetric method. There was an increase in the radical-scavenging effect, reducing power and superoxide anion radical-scavenging effect as the concentration of sample increased. Diospyros mespiliformis had high DPPH radical-scavenging capacity. The peels of F. indica and U. kirkiana had higher DPPH radical-scavenging effects, reducing power and superoxide-scavenging effects compared with the pulp while the pulp of Z. mauritiana had high DPPH radical-scavenging effects, reducing power and superoxide-scavenging effects compared with the peel.
引用
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页码:284 / 288
页数:5
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