Abstract

A. Mann*, J. O. Amupitan, A. O. Oyewale, J. I. Okogun and K. Ibrahim

Terpenoidal fractions were isolated from both Anogeissus leiocarpus (DC) Guill and Perr (Stem) and Terminalia avicennioides Guill and Perr (Root) and assayed against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. The terpenoidal fractions exhibited antimicrobial activities against all the test microorganisms. All test organisms were susceptible to the terpenoidal fractions. The minimum inhibitory concentration ranged between 0.213 and 5.0 µg/ml. The terpenoidal fractions from A. leiocarpus and T. avicennioides could be a potential source of chemotherapeutic agents. The antimicrobial activities of these terpenoidal fractions provide justification for the chemotherapeutic utilization of these plants.