Document Type : Research Paper
Authors
1 Academmic member of Research Center of Tehran Province
2 Academmic member of Organization in Research and Education of Agriculture
Abstract
Antibacterial effect of essential oils of thirteen genus of cultivated Eucalyptus in the Fadak station of Dezful on E.coil, St. aureus, B.cereus and L. monocitogenes were studied. The essential oils of leaves were obtained through the hydrodistillation method. The rates of essential oils to dry matter of leaves were registered.
The methods od disc diffusion and tube concentration were used to evaluate the microbial growth inhibition effects of essential oils. The essential oils had weak (+), mild (++) and good (+++) effects against the St. aureus. The minimum inhibitory concernation was ½. Against the E.coil weak (+) and mild (++) effects of the essential oil were registered. M.I.C. was ½. In B.cerus weak (+), mild (++), good (+++) and very good (++++) effects of essential oils were shown. The M.I.C. was 1/8. Also the essential oils had weak (+) and mild (++) effects against the L. monocitogenes.
Research on herbal antibacterial agents is important, considering the limitation of the use of chemical antibacterial agents, and increasing development of herbal antibacterial agents.
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