NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2011, Vol. 23 ›› Issue (2): 337-340.

• Article • Previous Articles     Next Articles

Antioxidant Activity of Sedum aizoon from Henan

LI Yuan-yuan, WANG Jun-xia, CAO Nai-feng, KANG Wen-yi*   

  1. 1Institute of Chinese Materia Medica, Henan University, Kaifeng 475004, China; 2Pharmaceutical College of Henan University, Kaifeng 475004, China
  • Received:2010-06-25 Online:2011-04-25 Published:2011-10-14

Abstract:

The total antioxidant activity of Sedum aizoon from Luoyang and Xinyang was evaluated by three methods: DPPH radical scavenging,ABTS radical scavenging and FRAP assay. The results were compared with positive controls BHA,BHT,and PG.. The results showed that S. aizoon had good total antioxidant activity in vitro. The ethyl acetate extract of S. aizoon from Luoyang and Xinyang had the highest antioxidant activity,which higher than that of the methanol extract. Among the six extracts of S. aizoon,the ethyl acetate extract of S. aizoon from Xinyang showed the highest antioxidant activity,which higher than that of ethyl acetate extracts from Luoyang and n-butanol extract. It also showed higher activity of DPPH and ABTS radical scavenging than that of positive control BHA and BHT. It exhibited the ferric reducing antioxidant power was higher than that of positive control BHT.

Key words: Sedum aizoon, antioxidant activity, DPPH, ABTS, FRAP