عنوان مقاله [English]
Background and Objective: The aim of this study is to evaluation of extract medicinal plants, the saffron, yarrow, thyme and rosemary on the bacteria Escherichia coli, Listeria monocytogenes, Salmonella typhimurium and Staphylococcus aureus.
Material and Methods: Antimicrobial effects of hydro-ethanol extract on the bacteria was surveyed using diffusion method in a culture medium Mueller-Hinton agar by paper discs (6 mm) based on Bauer and Kirby instructions. The antibiotic ciprofloxacin, amikacin, gentamicin, azithromycin, trimethoprim-sulfamethoxazole, ceftriaxone, penicillin and ampicillin was used as positive control. Means square was conducted by Least Significant Difference (LSD) test at five percent of probability level (P<0.05).
Results: Myrtus Extract is the most effective medicinal plant on the bacteria Listeria, Salmonella typhimurium and Staphylococcus aureus, respectively, with an average of 2.5±0.43, 1.67±0.25 and 2.33±0.66 cm the diameter of bacterial inhibition zone. Rosemary Extract is the most effective medicinal plant on the bacteria E.coli, respectively with an average of 1.25±0.66 cm the diameter of bacterial inhibition zone. Compared the effect of plant extracts with antibiotics were used in this research, was found that most of the extracts were more effective than ampicillin and penicillin on the bacterium E. coli. Myrtus extract Compared with all antibiotics was more effective than on bacteria Listeria monocytogenes, Salmonella typhimurium and Staphylococcus aureus.
Conclusions: According to the results, and increasing resistance to antimicrobial synthetic materials, Myrtus and after rosemary plant can be as effective in destroying some bacteria like; E.coli, Listeria monocytogenes, Salmonella typhimurium and Staphylococcus aureus.