FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (9): 521-523.

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Study on Antioxidant Activity of Extracts of Sweet Potato Stem and Leaf

 WU  Yi-南, ZHANG  Yu, GENG  Xiao-Lu, GAO  Yin-Yu, ZHU  Bei-Wei   

  1. 1.Biology and Food Engineering College, Dalian Light Industry Institute; 2.College of Life Science, Nanchang University
  • Online:2005-09-15 Published:2011-09-20

Abstract: The paper studied the antioxidant activity of the extracts of sweet potato stem and leaf (SPSL) by using the assays of DPPH radical, reducing power, hydroxyl radical and lipid peroxidation of linoleic acid (LA) was studied in this paper. The results showed that the extracts of SPSL had strong effect of scavenging free radicals, but it was weaker on the inhibition of lipid peroxidation, and there was a close correlation between scavenging free radicals and inhibition of lipid peroxidation.

Key words: sweet potato stem and leaf, antioxidant activity, radical, reducing power