Antimicrobial Activities of Essential Oils from Safou (Dacryodes edulis) Grown in Côte d'Ivoire

Andrée Emmanuelle Sika, Romuald Léonce Kadji, Didier Kra Kedjebo, Soumaïla Dabonné, Rose Koffi-Nevry

Abstract


Research on natural substances from plants contributes to the valorization of under-exploited and unknown plants in Côte d'Ivoire. Thus, the objective of this study was to highlight the antimicrobial properties of essential oils of Safou (Dacryodes edulis). To do this, essential oils (EOs) of Safou seeds and barks were extracted. Antimicrobial activity was determined on Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumonia, Proteus mirabilis, Aspergillus fumigatus and Candida albicans. The minimum inhibitory dilution (MID) of the essential oils for each microorganism was also determined with 1/10; 1/25; 1/50 and 1/100 dilutions. Essential oils (EOs) from seeds and barks of Safou showed strong antimicrobial activity on the tested microorganisms. The inhibition diameters ranged from 12.5 to 27 mm. However, no inhibitory activity was observed on Pseudomonas aeruginosa. The minimum inhibitory dilution (MID) of Safou seed and bark EOs showed inhibition diameters ranged from 9 to 19.5 mm. EOs were more active on bacteria than on yeasts and molds. Safou essential oils could be potentially used as natural antimicrobial agents against infectious diseases in humans and for food preservation

Keywords


Safou (Dacryodes edulis); Safou seed; Safou bark; essential oil; antimicrobial activity

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References


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