Antioxidant Potentials of Canna indica, Pergularia daemia, and Parquetina nigrescens leaves.

Abstract

This research examined on evaluating the antioxidant properties of methanol leaf extracts from Canna indica, Pergularia daemia, and Parquetina nigrescens, using total antioxidant capacity (TAC) and ferric reducing antioxidant power (FRAP) assays. The IC50 for the TAC assay was determined to be 0.064 mg/ml, while Canna indica, Pergularia daemia, Parquetina nigrescens, and the standard gave IC50 values were 0.62 mg/ml, 0.421 mg/ml, 0.119 mg/ml, and 1.61 mg/ml, respectively. In the FRAP assay, IC50 values were 0.64 mg/ml for Canna indica, 0.50 mg/mL for Pergularia daemia, 0.267 mg/ml for Parquetina nigrescens, and 0.166 mg/ml for the standard. Canna indica extracts indicated the highest reducing potential and percentage of radical inhibition. The presence of bioactive substances like phenolics and flavonoids found in the plant could be responsible for this effect. Thus, this indicate research suggest that Canna indica is a potent antioxidant agent.