In this study, antioxidant activity of extracted mint and basil extracts using different solvent (methanol, acetone and hexane) was evaluated. Mint and basil extracts at different concentrations (0.05, 0.1, 0.3 and 0.5%) were added to palm oil. The results of peroxide revealed that oil samples containing the highest concentration of methanolic extract of mint showed the lowest peroxide index. This results probably because the methanol extract was able to extract higher amount of phenolic compounds compared to acetone and hexane. Therefore mint methanol extract, could be a suitable substitute for detrimental and synthetic antioxidants which usually used by factories.
