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:: Volume 22, Issue 2 (Summer 2020) ::
J Gorgan Univ Med Sci 2020, 22(2): 82-88 Back to browse issues page
Antibacterial activity of ZnO nanoparticles on standard and isolated strains of Salmonella enteritidis and Bacillus cereus associated with Iranian foods
Shima Naddafi1 , Mohammad Mehdi Soltan Dallal * 2, Alireza Partoazar3 , Zahra Dargahi1
1- M.Sc in Food Microbiology, Department of Pathobiology, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2- Professor, Department of Pathobiology, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Professor, Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran , msoltandallal@gmail.com
3- Assistant Professor, Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
Abstract:   (551 Views)
Background and Objective: The emergence of Gram-positive and Gram-negative bacteria resistant to antibiotics is a crisis worldwide. In this study, the antibacterial effect of zinc oxide nanoparticles was evaluated on standard and food isolated strains of Salmonella enteritidis and Bacillus cereus.
Methods: This descriptive laboratory study, zinc oxide nanoparticles were prepared on zeolite materials, and zinc level was determined using XRF. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of ZnO nanoparticles were determined using disc diffusion method.
Results: MIC value for all tested bacteria was 4 mg/ml and MBC values of standard and isolated strains of Salmonella enteritidis were 16 and 8 mg/ml, respectively, and for standard and isolated strains of Bacillus cereus was calculated in the range of 16 mg/ml.
Conclusion: Zinc oxide nanoparticles can inhibit Salmonella enteritidis and Bacillus cereus strains and may have a potential for its replacement with current preservatives to prevent food spoilage in industry.
Keywords: Salmonella enteritidis [MeSH], Bacillus cereus [MeSH], Zinc oxide [MeSH], Nanoparticles [MeSH], Antibacterial activity [MeSH], Food [MeSH],
Article ID: Vol22-26
Full-Text [PDF 266 kb]   (73 Downloads)    
Type of Study: Original Articles | Subject: Microbiology
References
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Naddafi S, Soltan Dallal M M, Partoazar A, Dargahi Z. Antibacterial activity of ZnO nanoparticles on standard and isolated strains of Salmonella enteritidis and Bacillus cereus associated with Iranian foods. J Gorgan Univ Med Sci. 2020; 22 (2) :82-88
URL: http://goums.ac.ir/journal/article-1-3627-en.html


Volume 22, Issue 2 (Summer 2020) Back to browse issues page
مجله علمی دانشگاه علوم پزشکی گرگان Journal of Gorgan University of Medical Sciences
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