Activité antimicrobienne des huiles essentielles de Pistacia atlantica Desf. de l’Algérie

Phytotherapie 12/2009; 7(6):304-308. DOI: 10.1007/s10298-009-0505-5


L’activité antimicrobienne des huiles essentielles de la résine de Pistacia atlantica Desf., récoltées dans trois stations de l’Ouest et le Sud-Ouest de l’Algérie, a été testée in vitro sur des isolats cliniques
de sept souches bactériennes (Escherichia coli, Enterobacter cloacae, K. pneumoniae, Pseudomonas aeruginosa, Xanthomonas maltophila, Enterococcus feacalis et Staphylococcus aureus) et de trois souches fongiques (Candida albicans, Candida albicans ATCC20027 et Candida albicans ATCC20032). La détermination du pouvoir antibactérien et antifongique a été réalisée par la méthode de la diffusion sur gélose.
Tous les extraits ont montré une forte activité antimicrobienne vis-à-vis des souches fongiques et bactériennes à des concentrations
voisines de 105 µg/ml. Les huiles essentielles ont révélé un grand pouvoir antibactérien vis-à-vis de Staphylococcus aureus et Enterococcus feacalis avec des concentrations minimales inhibitrices (CMI) inférieurs à 10 µg/ml. Candida albicans a présenté une forte résistance aux huiles essentielles testées.
Antimicrobial activity of essential oils of Pistacia atlantica Desf. resin, collected in three localities from the western and south-western of Algeria was tested in vitro on clinical
isolates of seven species of bacteria (Escherichia coli, Enterobacter cloacae, Klebsiella pneumoniae, Pseudomonas aeruginosa, Xanthomonas maltophila, Enterococcus
feacalis, and Staphylococcus aureus) and three species of fungi (Candida albicans, Candida albicans ATCC20027 and Candida albicans ATCC20032). Diffusion method was used for antibacterial and antifungal activities testing. All of the extracts showed strong
antimicrobial activity against both fungi and bacterial strains at the concentration of 105 µg/ml. The essential oils exhibited strong antibacterial activity against Staphylococcus aureus and Enterococcus feacalis with MIC lower than 10 µg/ml. Candida albicans showed resistance to all volatile oils tested.

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