Chemical composition and antimicrobial activity of Opuntia stricta F. essential oil
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2014, Vol 4, Issue 5
Abstract
Due to biological activities of Opuntia sp. and use of this plant in traditional medicine, chemical composition and antimicrobial activity of the essential oil of Opuntia stricta F. were studied. The essential oil of the plant was extracted using hydrodistillation method and analyzed by GC and GC/MS. Nineteen compounds were identified, with thymol (42.7%) as the dominant component. The antimicrobial activity of the oil was evaluated using disc diffusion method against standard strains of Bacillus cereus, Bacillus licheniformis, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans. All of the microorganisms were sensitive in 20 mg/ml concentration of the oil. MIC values about B. cereus, B. licheniformis, E. coli, P. aeruginosa and C. albicans were 1.25, 1.25, 5, 20 and 2.5 mg/ml, respectively. It could be concluded that Opuntia stricta has a potent antimicrobial activity and its effect may be attributed to high content of thymol which was proved in this study. Consequently, the essential oil of the plant can introduce to develop new drug candidate for antimicrobial therapy and food preservative as well.
Authors and Affiliations
Elham Moosazadeh, Mohammad Reza Akhgar, Ashraf Kariminik
Keywords
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