DPPH scavenging activity. Effect of the T. chebula, T. belerica and E. officinalis extracts and standard ascorbic acid on DPPH radical scavenging study. The data is expressed as % scavenging of DPPH radicals. The results are mean ± S.D. of six parallel measurements. ***p < 0.001 vs 0 μg/ml.
Hazra et al. BMC Complementary and Alternative Medicine 2010 10:20 doi:10.1186/1472-6882-10-20