Antibacterial Effect of Essential Vegetal Extracts on Staphylococcus aureus Compared to Antibiotics
AbstractThis study is aiming to evaluate the antimicrobial activity of ten essential vegetal extracts on strains of Staphylococcus aureus isolated from animal lesions. The comparative effect of some antibiotics on these strains isolated from animals was also tested and estimated. The extracts were represented by Albies alba, Aloe barbadensis, Calendula officinalis, Cocos nucifera, Eucalyptus globulus, Hypericum perforatum, Lavandula angustifolia, Satureja hortensis, Mentha piperita, Pinus silvestris essential oils, in three amounts (30 Î¼l, 3 Î¼l and 0,3 Î¼l) and comparatively eight antibiotics frequently utilized in staphylococci infections treatment in animals were used. Animal origin S. aureus strains were identified using API staph tests (BioMerieux, France). The tests were realized by diffusion method using Muller Hilton agar while the antibacterial effect was interpreted depending on the inhibition area diameter. The obtained results revealed that Satureja hortensis and Albies alba extracts inhibit the develop of the most staphylococci tested strains. The highest inhibition areas were observed for the amounts of 30 Î¼l and 3 Î¼l essential extract. Most of the staphylococci strains were resistant to antibiotics, the most efficient being Ceftiofur and Methicillin. The results are suggesting that savory and fir has antibacterial effect on S. aureus similar to the best antibiotics proving to be an alternative as natural antibiotics utilization in infectious diseases.
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