Investigation of antibacterial effects of ethanolic extract of Sumac (Rhus coriaria L.) against Escherichia coli in vitro

Subject Areas : Food Science and Technology

حمدالله Moshtaghi ¹ ( Assistant Professor, Department of Food Hygiene and Quality Control, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran )
مریم Abbasvali ² ( Assistant Professor, Department of Food Hygiene and Quality Control, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran )
الناز Mohammadi ³ ( Graduated of Veterinary Medicine, Shahrekord University, Shahrekord, Iran. )
A.R Safian ⁴ ( Graduated of Veterinary Medicine, Shahrekord University, Shahrekord, Iran. )
میلاد Adel ⁵ ( PhD student, Department of Aquatic Animal Health and Diseases, Caspian Sea Ecology Research Center, Sari, Iran )

Received: 2013-05-04 Accepted : 2013-11-23 Published : 2013-08-23

Keywords: &lt, i&gt, Rhus coriaria L&lt, i&gt, , Antibacterial Effects, &lt, i&gt, Escherichia coli&lt, i&gt, ,

Abstract :

   The antibacterial effect of etbhanolic extract of Sumac (Rhus coriaria L.) was investigated quantitatively and qualitatively on Escherichia coli. The results of well diffusion test showed that extracts of Sumac in concentration of 0.5%, 1%, 2.5% and 5% could inhibited E. coli. In this study it was shown that MIC of the alcoholic extract of Sumac against E. coli was 6.25 mg/ml and its MBC against this bacterium was 50 mg/ml. The results from evaluation of the antibacterial effects of the Sumac revealed that at 4 and 15 °C, the growth of E. coli in test tubes containing meat extracts has increased Throughout the 48 h of incubation period. Results showed that the growth of this bacteria in different concentration of Sumac extract as decreased in the both tested temperatures in comparison to time zero (p<0.05). Furthermore, there was a significant difference in the number of microorganism at various times between control and experimental groups in both tested temperatures (p<0.05). 

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