DPPH radical scavenging activity of aqueous TA extract in cell-free system. The curve is obtained by plotting various concentrations of the extract (μg/ml) against percent inhibition of DPPH radical. Vitamin C (VitC) has been used as a known DPPH radical scavenger.
Manna et al. BMC Complementary and Alternative Medicine 2006 6:33 doi:10.1186/1472-6882-6-33