Antibacterial activity of polyalthia Longifolia against hospital isolates of Bengaluru district

Abstract

The medicinal value of polyalthia longifolia against clinical isolates staphylococcus aureus, Streptococcus faecalis, Pseudomonas aeruginosa, Bacillus subtilis, and E.coli were detected by methanolic extracts of leaves, the methanolic extract revels the presence of terpenoids, flavonoids, saponins, tannins, and phenolic compounds and subjected antibiotic activity by the well diffusion method. Flavonoids showed very good zone of inhibition against staphylococcus aureus, Pseudomonas aeruginosa, Bacillus subtilis, and E. coli as 21 mm, 23 mm, 21 mm, 19 mm, and 16 mm respectively alkaloids and saponins showed moderate zone of inhibition.