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Iranian Journal of Microbiology، جلد ۴، شماره ۱، صفحات ۳۰-۳۴
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عنوان انگلیسی Essential oil of tarragon (Artemisia dracunculus) antibacterial activity on Staphylococcus aureus and Escherichia coli in culture media and Iranian white cheese.
چکیده انگلیسی مقاله In this study, the antibacterial effect of essential oil of tarragon (Artemisia dracunculus) on Staphylococcus aureus and Escherichia coli was evaluated in culture media and Iranian white cheese.The tarragon essential oil (EO) obtained by the steam distillation method and its antibacterial activity was evaluated in 96-well microtiter plates containing brain heart infusion broth. The enumeration of S. aureus and E. coli in cheese samples were carried out on the following media: Baired parker agar for S.aureus, incubated at 37°C for 24 h; and MacConkey sorbitol agar for E. coli, incubated at 37°C for 24 h. Iranian white cheese was produced from fresh and whole pasteurized cow milk (2.5%). Bacteria (10(3) cfu/mL) were inoculated to different batches. Cheese was treated with different concentrations of EO (15 and 1500 µg/mL) and separated into four parts in an equal manner. The sensory evaluation was done by a panel of four judges.According to the results obtained, minimum inhibitory concentrations (MIC) for E. coli and S. aureus were 2500 and 1250 µg/mL, respectively. Also, minimum bactericidal concentration (MBC) for the mentioned microorganisms were 5000 and 2500 µg/mL, respectively. All the EO concentrations for each bacteria result in reducing bacterial count of cheese samples compared to control (P< 0.05). Also, with increasing concentration of EO in cheese samples, the bacterial count was reduced further (P< 0.05).Based on our findings, tarragon essential oil has antibacterial effect on two important pathogen bacteria (S. aureus and E. coli) and can be applied as a preservative in foods such as cheese.
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نویسندگان مقاله m رییسی | m raeisi
department of food quality control, faculty of veterinary medicine, urmia university, urmia, iran.

سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

h تاجیک | h tajik


روحانی sm رضوی | roohani sm razavi


m مهام | m maham


محمود مرادی | m moradi


b حاجی محمدی | b hajimohammadi


h نقیلی | h naghili


هاشمی | m hashemi


t مهدی زاده | t mehdizadeh


نشانی اینترنتی http://ijm.tums.ac.ir/index.php/ijm/article/view/716
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