Antibacterial Activity of Methanolic Extract of Thespesia populnea (Malvaceae) Flower

Preliminary phytochemical screening of Thespesia populnea demonstrated the presence of flavonoids, glycosides, saponins, alkaloids and triterpenes. Antibacterial activity of methanolic extract of Thespesia populnea was Checked at a lowest concentration by cup and plate method. Zones of inhibition produced by methanolic extract in a dose of 5, 10, 25, 50 and 100 µg/ml against some selected strains was measured and compared with those of standard antibiotic levofloxacin (10 µg/ml).