ABSTRACT
Aims: This study was carried out to investigate the antimicrobial activity of Chrysophyllum albidum leaves extract on selected Gastro-instestinal bacteria such as Salmonella typhimurium, Shigella dysentariae, Vibrio cholera, Escherichia coli and Clostridium perfringens. Methodology: The leaves were extracted using ethanol, methanol and distilled water; the concentration of the extracts employed were 100 mg/ml, 200 mg/ml, 400 mg/ml and 500 mg/ml respectively; however the leaf extracts of Chrysophyllum albidum were screened for anti-microbial activity using the in vitro cup-plate method of agar diffusion technique with concentration of 10-5cells/ml of the selected bacteria. Simultaneously, 30 µg tetracycline and 30 µg metronidazole were used as positive control. Results: The result showed that the most active among them is Tetracycline; followed by ethanolic extract, aqueous extract, methanolic extract and metronidazole extract respectively on the tested bacteria. Conclusion: This research justifies the traditional use of the leaves of Chrysophyllum albidum for the therapeutic purposes; hence can be commercialized by pharmaceutical outfit; if not for anything but its availability and readily for human consumption.