Antimicrobial effect of Satureja bachtiarica extracts aqueous and ethanolic on Escherichia coli and Staphylococcus aureus
محل انتشار: مجله علمی علوم بیولوژیکی، دوره: 2، شماره: 2
سال انتشار: 1391
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 443
فایل این مقاله در 8 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_SJBS-2-2_001
تاریخ نمایه سازی: 16 آذر 1394
چکیده مقاله:
According to biologically active compounds and traditional use of the Satureja bachtiarica, seem that this plant has significant antimicrobial effects. In this study antimicrobial effect of extracts evaluated by two methods, Collins method and disk agar diffusion method on Escherichia coli PTCC 1330 and Staphylococcus aureus PTCC 1337 microorganisms. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for both species determined by using a dilution method. Statistical analysis was carried out by analysis of variance (ANOVA). All ethanolic extract concentrations had an inhibitory effect on the disk agar diffusion method. In Collins method ethanolic extract in 2000 μg/ml concentration, could prevent the growth of both strains on medium. The aqueous extract, had no antimicrobial significant effect in 2000 μg/ml concentration. The ethanolic extract MIC of Satureja bachtiarica for Staphylococcus aureus was 8 mg/ml, and for Escherichia coli was 16 mg/ml. But the aqueous extracts MIC of Satureja bachtiarica for Staphylococcus aureus was 32 mg/ml and for Escherichia coli was 64 mg/ml. The ethanolic extract MBC of Satureja bachtiarica for Staphylococcus aureus was 16 mg/ml, and for Escherichia coli was 32 mg/ml. But the aqueous extracts MBC of Satureja bachtiarica for Staphylococcus aureus was 64 mg/ml and for Escherichia coli was 256 mg/ml. The Satureja bachtiarica extract presented the more effective impact on the growth of Staphylococcus aureus PTCC 1337 than Escherichia coli PTCC 1330 (p<0.05). The results indicate that ethanolic extract of Saturejabachtiarica has the greatest effect on gram positive bacteriumStaphylococcus aureus PTCC 1337
کلیدواژه ها:
نویسندگان
M Heidart Sureshjani
Department of Food Science and Technology, Ferdowsi University of Mashhad, Iran
F Tabatabaei Yazdi
Department of Food Science and Technology, Ferdowsi University of Mashhad, Iran
A Mortazavi
Department of Food Science and Technology, Ferdowsi University of Mashhad, Iran
F Shahidi
Department of Food Science and Technology, Ferdowsi University of Mashhad, Iran