Antimicrobial appraisal and antioxidant potential of Anisomeles indica (L.) Kuntze (Lamiaceae)

Abstract

Plant extracts of Anisomeles indica prepared in different solvents were analyzed for their antimicrobial activities using disc diffusion assay against six bacterial and four fungal strains. The total phenolic and flavonoid content was also determined quantitatively. Out of the six plant extracts, methanolic extract showed the highest amount of phenols (153.7±0.75mgGAE/g) and flavonoids (173.85±.506 mg Quercetin/g) and it was positively correlated with antimicrobial potential of the extract. Free radical scavenging activity was evaluated by non-enzymatic assays (DPPH and ABTS assay) and enzymatic assays. Our results concluded that methanol extract exhibited highest antioxidant activity via DPPH and ABTS assay and also display high phenolic and flavonoid content. The enzymatic activity level of A. indica was found to be satisfactory.