2007•Journal of Zhejiang University Agriculture and Life SciencesRequires access

Study on antioxidant activities of mulberry pigment in vitro

Hui Li

Abstract

Antioxidant activities of mulberry pigment were evaluated by determining the total antioxidant capacity, inhibitory effect of lipid per-oxidation, as well as scavenging effects to ·OH, DPPH· and ABTS+, which generated by different systems. The results showed that mulberry red pigment extract had strong antioxidant activities on inhibiting to lipid per-oxidation, and scavenging to ·OH, DPPH· and ABTS+. The half inhibitory content (IC_ 50 ) expressed by anthocyanin was 18.56,77.62,35.91 and 109.33 mg·L -1 , respectively, in these four systems. The overall results suggest that the mulberry extract would be an excellent natural antioxidant and free radical scavenger.

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Key concepts: Antioxidant, ABTS, DPPH, Pigment, Anthocyanin, Scavenger, Chemistry, Food science