Study of the antimicrobial activities of Solanum indicum ssp. distichum (Schumach. and Thonning 1827) fruits (“gnangnan” berries) from a tropical humid zone (Côte d’Ivoire)
AbstractThe antibacterial activity of both aqueous and ethanolic extracts of Solanum indicum ssp. distichum (Schumach. and Thonning, 1872) fruits was investigated. These extracts were evaluated for antibacterial
activity against two Gram positive (Listeria innocua LRGIA 01 and Staphylococcus aureus CNRZ3) and two Gram negative (Escherichia coli industrial strain and Pseudomonas aeruginosa ATCC 15742) strains. This
evaluation was performed by following their growth by a spectrophotometric method in Brain Heart Infusion broth. L. innocua LRGIA01growth was completely inhibited by 0.04 g.mL-1 of aqueous extract of Solanum
indicum berries, while a dose-dependent inhibition by 0.04 g.mL-1 and 0.1 g.mL-1 ethanolic extracts was observed. Conversely, the inhibitory activity of ethanolic extract on P. aeruginosa ATCC 15742 growth, was higher than that of aqueous extract. E. coli industrial strain and S. aureus CNRZ 3 growth were inhibited by 0.1 mg.mL-1 ethanolic extract but not by 0.04 mg.mL-1 ethanolic or aqueous extracts. These results suggest that different classes of compounds are likely responsible for the antibacterial activities. The high inhibitory activity of aqueous and ethanolic extracts on L. innocua LRGIA01 and P. aeruginosa ATCC 15742 strains, respectively calls for further studies to identify the antibacterial compounds present in Solanum indicum berries
and their mechanisms of action.
Submission of a paper for publication implies the transfer of the copyright from the author(s) to the publisher upon acceptance. International Formulae Group is therefore the copyright holder after publication of an article in International Journal of Biological and Chemical Sciences, and published articles should not be used for commercial purpose without the written consent of the Editor-in-Chief. They are licensed under a Creative Commons Attribution-Non Commercial-Share Alike 4.0 International License.