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Antibacterial effect of the extracts and essential oils prepared from Pistacia lentiscus L. mastic gum against pathogenic bacteria | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 16, Issue 4, 2011, Pages 35-39 | ||
| Author | ||
| Hassan F. Al-Mola | ||
| Abstract | ||
| The water, ethanol, chloroform, acetone extracts and isolated essential oil of the mastic gum resins of Pistacia lentiscus L. were investigated for their antibacterial activity against seven different species of pathogenic microorganisms: Staphylococcus aureus, Corynebacterium diphtheriae, Escherichia coli, Proteus mirabilis, Klebsiella pneumonia, Salmonella typhi and Pseudomonas aeruginosa using disc diffusion and microdilution assay. All extracts showed antibacterial activity against most tested bacteria except, P. mirabilis and E. coli which were resistant to chloroform and acetone extracts. The ethanol extract exhibited the highest antibacterial activity against S. aureus whereas the water extracts exhibited some degree of activity and the chloroform and acetone extracts exhibited no or least activity. The isolated compound (essential oil) with a concentration of 50 mg/ml achieved good antibacterial activity against all tested bacteria (zone of inhibition range: 18-27 mm).Minimal inhibitory concentrations of The ethanol extract achieved best results against all tested bacteria and S. aureus was the most susceptible bacteria with a MIC value of 0.097 mg/ml, whereas the lowest susceptibility results were seen against C. diphtheria using the aqueous and acetone extracts. Finally the essential oil showed best results against P. aeruginosa and the least activity was calculated against E. coli and S. typhi. | ||
| Keywords | ||
| antibacterial; Mastic gum; Pistacia lentiscus L | ||
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