Inhibitory effect of caffeic acid analogues isolated from Salviae Miltiorrhizae Radix against 1,1-diphenyl-2-picrylhydrazyl radical.

Abstract

Caffeic acid and its four polymers isolated from Salviae Miltiorrhizae Radix were examined for their activity of scavenging free radicals in a 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical generating system. The results showed that the polymers of caffeic acid inhibited the DPPH radical more strongly than caffeic acid. The strongest activity was displayed by… (More)

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