The present study was designed to screen solvent extracts of Capparis zeylanica Linn. for free radical scavenging activity in vitro. The course material of Capparis zeylanica leaves was successively extracted with hexane, ethyl acetate, methanol and aqueous. The free radicals used were DPPH, Hydroxyl radical, Hydrogen peroxide, Nitric oxide, lipid peroxide, superoxide, Phenazine Methosulphate-NADH method, Xanthine-xanthine oxidase system, Pyrogallol autooxidation, cytochrome C, total antioxidant activity, total phenolic content and Reducing power. Hexane showed high antioxidant activity when compared to the other three extracts. Least activity was observed in ethyl acetate extract for all the parameters studied.
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