Table 1.

DPPH and ABTS^−· radical reactions, redox potentials and antioxidant activities of plant extracts

Extract	Cyclic Voltammetric Peaks	DPPH Assay (IC50 µg/ml)	ABTS·− assay Ascorbate equ. (%)	IC50 (µg/ml) to inhibit γ-radiation induced lipid peroxidation
Phyllanthus embilica, T1	0.25 V	8 ± 2	33 ± 5	7 ± 3
Terminalia chebula, T2	0.3 V	6 ± 4	60 ± 5	11 ± 4
Terminalia belerica, T3	0.24 V	10 ± 2	35 ± 4	13 ± 3
Triphala, T4	0.3 V	7 ± 3	33 ± 6	10 ± 3