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

Zhu Pei-wei

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.

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Available abstract

Key concepts: Lipid peroxidation, Radical, Chemistry, Antioxidant, DPPH, Linoleic acid, Scavenging, Food science