Résumé:
Coagulase-negative staphylococci have long been regard as devoid of pathogenicity
and as simple contaminants of defective specimens. Today they are opportunistic bacteria
potentially pathogenic.
On the basis of several scientific works on the nutritional, medical and pharmaceutical
interest of Moringa oleifera,we investigated the antibacterial activity of extracts obtained
from the plant Moringa oleifera (fresh juice extract, infusion extract, decoction extract, ethyl
acetate extract, butanolic extract and ethanolic extract) against ten clinical isolates of SCN.
According to our results, it appears that the tested extracts of the M. oleifera plant
showed variable antibacterial properties against the tested SCN isolates. We noticed a high
activity for ethyl acetate extract and medium for butanolic extract, decoction and infusion
extract but low for ethanolic extract.
The minimum inhibitory concentration (MIC) values recorded by the extracts studied
vary from 12,5% to 25% (v/v) for the fresh juice extract, from 0,23mg/ml to 0,93mg/ml and
from 6,25mg/ml to 50mg/ml for the ethyl acetate and butanol fractions respectively and from
3,12% to 12,5% for the infusion extract.
