FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (11): 60-63.doi: 10.7506/spkx1002-6630-201011013

• Basic Research • Previous Articles     Next Articles

Free Radical Scavenging and Antioxidant Activity of Six Potherbs from Guizhou

GONG Jiang-ning1 LIAO Li-ling1,* WANG Zheng-wu2 ZHENG Kui-ling1   

  1. 1. School of Chemistry and Material Science, Guizhou Normal University, Guiyang 550001, China 2.Department of Food Science
    and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2009-09-27 Revised:2010-03-16 Online:2010-06-01 Published:2010-12-29
  • Contact: LIAO Li-ling E-mail:zhengwuwang@sjtu.edu.cn

Abstract:

Six potherbs including Chenopodium album linn, Pteridum aquilinum var latiusculum, purslane, Picris divaricata vaniot, water cress and Bengal waterdropwort from Guizhou were extracted with ethanol or water and the extracts were tested for their hydroxyl and DPPH free radical scavenging capabilities. Meanwhile, the IC50 values as determined using rapeseed oil and lard as antioxidant models were used to evaluate their antioxidant activity. The results indicated that the 6 potherbs exhibited high hydroxyl and DPPH free radical scavenging capabilities and had excellent antioxidant effects on rapeseed oil and lard. However, added Bengal waterdropwort could accelerate oxidantion of rapeseed oil and lard.

Key words: potherbs from Guizhou, hydroxyl free radicals, DPPH free radical, edible oil, antioxidation

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