Evaluation Of Antioxidant And Anti-Microbial Activities Of Kalanchoe Pinnata And Pongamia Pinnata

Abstract

The aim of this study was to investigate and determine the antioxidant and antimicrobial activities of hydroalcoholic extracts of K. pinnata (leaves) and the seeds of P. pinnata. The antioxidant activity was evaluated using the 2,2-diphenyl1-picrylhydrazyl radical, while the antibacterial activity was assessed using the disc diffusion in-vitro assay method. The hydroalcoholic extracts of K. pinnata and P. pinnata seeds exhibited significant antioxidant activity, with IC50 values of 69.93µg/ml and 99.06µg/ml, respectively. The antimicrobial activity of the extracts was evaluated against Gram-positive (B. subtilis) and Gram-negative (K. pneumoniae) bacterial strains. The results showed that the hydroalcoholic extracts of K. pinnata and P. pinnata seeds contain potential antimicrobial activity due to the presence of secondary metabolites. These findings indicate that the hydroalcoholic extracts of K. pinnata leaves and P. pinnata seeds possess strong antibacterial and antioxidant properties, making them promising sources of natural compounds for the development of new drugs.