In-vitro Assays to Show the Antioxidant Potential of ?-sitosterol from Lawsonia inermis Leaves

Apprehensions about the therapeutic efficacy and safety of synthetic drugs fuel the research to discover holistic remedies. The antioxidant effect of methanolic extract of Lawsonia inermis leaves (MELIL) -sitosterol have been investigated against the in-vitro oxidant systems by using 2, 2- diphenyl-1-picrylhydrazyl (DPPH), hydroxyl radical, superoxide anion, FRAP (ferric reducing antioxidant power) and nitric oxide assays. The results obtained clearly shows that -sitosterol exerts significant antioxidant effect across all the studied oxidant systems.