In vitro Activity of Four Common Essential Oil Components against Biofilm-producing Pseudomonas aeruginosa

Research Article

***In vitro* Activity of Four Common Essential Oil Components against Biofilm-producing *Pseudomonas aeruginosa***

Soumya El abed, Abdellah Houari, Hassan Latrache, Adnane Remmal and Saad Ibnsouda Koraichi

Biofilm control has become an area of intense study. The effect of four Essential Oil Components (EOC’s) on adherence and biofilms on two pathogenic Pseudomonas aeruginosa isolates were investigated in this study. The inhibitory activity was tested on polystyrene flat-bottomed microtitre plates using the Crystal Violet (CV) staining assay. The results showed that this activity was dependent on the terpenes concentration used to treat the adherence and biofilm. Treatment of Pseudomonas aeruginosa adherence with eugenol, carveol and carvone (0.5 Minimum Inhibitory Concentration), resulted 60, 45 and 54% inhibition for P. aeruginosa (CIP A22) and 69, 65 and 42% for P. aeruginosa (ATCC 27853), respectively. β-ionone shows a slight inhibitory effect for the two strains studied. The results also showed that eugenol (0.5 Minimum Inhibitory Concentration) was able to induce an inhibition≥90% of P. aeruginosa biofilm (strain ATCC 27853) and a concentration of carvone and carveol of at least 0.5 Minimum Inhibitory Concentration (MIC) was required to obtain approximately 50% of biofilm inhibition. β-ionone (0.5 MIC) appeared as the least efficient against P. aeruginosa biofilm resulted only 43% reduction of the biofilm. This study demonstrated the anti-adherence and antibiofilm activity of terpenes and points out the exceptional efficiency of eugenol, carvone and carveol, which could represent candidates in the treatment of Pseudomonas aeruginosa biofilm.

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Soumya El abed, Abdellah Houari, Hassan Latrache, Adnane Remmal and Saad Ibnsouda Koraichi, 2011. In vitro Activity of Four Common Essential Oil Components against Biofilm-producing Pseudomonas aeruginosa. Research Journal of Microbiology, 6: 394-401.

URL: https://scialert.net/abstract/?doi=jm.2011.394.401

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Authors

Soumya El abed

Abdellah Houari

Hassan Latrache

Adnane Remmal

Saad Ibnsouda Koraichi

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Research Article

***In vitro* Activity of Four Common Essential Oil Components against Biofilm-producing *Pseudomonas aeruginosa***

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