Objective: To investigate the quantification of total phenolic, alkaloid content and in-vitro antioxidant activity of ethanol (70%), methanol, ethyl acetate and hexane extracts of Mesua ferrea (M. ferrea) leaves. Methods: The quantification of the total phenolic and alkaloid contents were estimated by taking gallic acid and atropine are as a standard; In-vitro antioxidant activity was evaluated for extracts by using different free radicals (superoxide, hydroxyl and DPPH).Results: M. ferrea leaves ethanol (70%) extract have more phenolic and alkaloidal content than other extracts. The selected plant extracts were produced concentration dependent percentage inhibition of different free radicals and produced maximum activity at a concentration of 1 280 μg and there after the percentage inhibition were raised gradually to its maximum level with higher concentrations. Conclusion: In the present study we found that the extracts of M. ferrea showed good antioxidant activity. Among the four extracts, the ethanol (70%) extract showed better activity than other extracts.
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