Subhashini K. Sripathi2017-11-152017-11-1520110974-4169https://ir.avinuty.ac.in/handle/avu/3658Pisonia grandis (R-Br) (grand |devil’s claw) Qfyctaginaceae) is a lettuce tree having anti-inflanunatoiy, antidiabetic, diuretic, and wound healing activity. Antioxidant activity of aqueous fraction of ethanol extract o f Pisonia grandis (R.Br) was analyzed by its electrochemical bdiavior. Cyclic voltammetry o f the aqueous fraction o f the ethanol extract at glassy carbon elec tive with KCl as su j^ rtin g electrolyte revealed a reversible and an irreversible redox reaction which is due to the presence of one or more secondary metabolites like flavonoids, phenols and tri-terpenoids having antioxidant propoties