In vitro Antioxidant and Antimycobacterial Activity of Seeds of Piper longum Linn: A comparative Study

Piper longum, belonging to the family Piperaceae, have been reported to have pharmacological and clinical importance. The present study was undertaken to compare the in vitro antioxidant and antimycobacterial activity of chloroform, ethyl-acetate, hexane, ethanol, hydro-ethanol and aqueous extracts of seeds of Piper longum in order to establish the most active extract for further study. All the six extracts were screened for antioxidant activity using in vitro screening models viz. scavenging activity of DPPH radical, nitric oxide, hydroxyl radical; reductive ability and ABTS assay. Ascorbic acid served as reference standard.

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