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To assess the antibacterial and cytotoxic properties of stem-barks of Feretia apodanthera and Erythrophleum ivorense extracts from powdered stem-barks of Feretia apodanthera and Erythrophleum ivorense were prepared following standard techniques of marceration, filtration and evaporation. Antibacterial activity was assayed against five pathogenic bacteria strains by the welldiffusion and broth microdilution methods. Cytotoxicity was measured by acute toxicity test on female albino rats and confirmed by cell viability assay using 3T3 cell lines. Phytochemical analysis was performed following standard techniques. The aqueous/alkaloid extracts of Feretia apodanthera and the ethanol extract of Erythrophleum ivorense were active against the five pathogenic bacteria strains tested (diameter zone of inhibition (DZI) ranging from 5.1 to 17.8mm). The Feretia apodanthera extracts were the most active against Staphylococcus aureus (DZI 17.1-17.8mm). The MIC and MBC of the extracts of both plants ranged from 0.094mg/ml to 48mg/ml and 0.047mg/ml to 48mg/ml respectively. Extracts of Feretia. apodanthera at 5000mg/Kg had no effect on the behavioural properties of rats and no death was observed. Incubation with 3T3 cell lines did not produce any cell toxicity up to 20μM and 5μM respectively for the aqueous extract and the alkaloid fraction. Incubation with higher concentrations produced cell death with IC50 of 39.41 ± 0.95μM and 38.45 ± 1.64μM respectively. Phytochemical analysis revealed the presence of various constituents. The results show for the first time that stem-bark extracts of F. apodanthera and E. ivorense possess antibacterial activities against common human pathogenic bacteria and the low/lack of toxicity as demonstrated with the F. apodanthera extracts justify and confirm their safe ethnomedical uses.

international journal of pharmacology, phytochemistry and ethnomedicine

Cytotoxic and Antibacterial Assessment of Stem-Barks of &lt;i&gt;Feretia apodanthera&lt;/i&gt; and &lt;i&gt;Erythrophleum ivorense&lt;/i&gt;; Two West African Medicinal and Socio-Economic Trees