Antibacterial Effects Of Gongronema Latifolium (Utazi) Leaf And Jatropha Curcas (Barbados) Leaf Extracts On Some Clinical Bacterial Isolates

ABSTRACT

Methanol and water extracts of J. curcas and G. latifolium were prepared in different concentration of 0.5mg/l to 5mg/l. Methanol extract showed more inhibitory properties over water extract. Gongrenema latifolium exhibited high inhibitory effect than J.curcas. The diameter of zone of inhibition of J.curcas range from 6mm to 10mm and 6mm to 14mm for water and methanol extracts respectively while the diameter zone of inhibition for G. latifolium range from 6mm to 10mm and 6mm to 26mm for water and methanol extract respectively. The minimum inhibitory concentration of J.curcas on E. coli was 0.5mg/l and 2.5mg/l on S. aureus and Salmonella typhi. The minimum inhibitory concentration (MIC) of G. latifolium on E. coli was 1mg/l while S. aureus and Salmonella typhi was 2.5mg/l. Therefore, the result obtained indicated that the extracts of Gongronema latifolium and Jatropha curcas possess antibacterial activities against Staphylococcus aureus, Salmonella typhi and Escherichia coli. Jatropha curcas are  efficacious for the remedy of boils, carbouncle and other entero-infection cause by Staphylococcus aureus, E. coli and Salmonella typhi.