Document Type : Research Paper
Authors
1 Department of Microbiology, Faculty of Medicine, Shahed University, Tehran, Iran
2 -
Abstract
Staphylococcus aureus is an important pathogen that produces widespread infections. Increasing antibiotic usage for S. aureus infections, created antibiotic resistance and hence need for production of new antibiotics. Medicinal herb with antimicrobial effect have important role in traditional medicine. The aim of this study was to survey antimicrobial effect of hydroalchoholic extract of Zataria multiflora on S. aureus. The minimal inhibitory concentration (MIC) and minimal bactericidal concentratioin (MBC) of extract of dried leaf of Z. multiflora were determined by macro-dilution method. The changes of the number of bacteria in the presence of different concentrations (25% and 30%) of extract and time were assessed. The results were compared with changes of the number of bacteria in presence of 4 µg/mloxacillin. The results showed that MIC and MBC was equal 25% for extract of Z. multiflora and reduction of the number of bacteria on the present of 30% of extract after 8h is equal with reduction of the number of bacteria exposed to 4 µg/ml oxacillin after 4h. Z .multiflora is native for Iran. Further studies and research on the antimicrobial effects of this medicinal herb, probably, may lead to production of herbal drugs.
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