Effectiveness of ZnO Nano Particles against the Foodborne Microbial Pathogens E. coli and S. aureus
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Keywords

ZnO, Nano particles, Antimicrobial agents, MIC, MBC.

How to Cite

Saif Aldin, K., Al-Hariri, S., & Ali-Nizam, A. (2020). Effectiveness of ZnO Nano Particles against the Foodborne Microbial Pathogens E. coli and S. aureus. Jordan Journal of Chemistry (JJC), 15(2), 87-94. https://doi.org/10.47014/15.2.4

Abstract

In this work, various concentrations of ZnO nano particles, prepared by the coprecipitation method with a size range of 47-68 nm, have been investigated as antimicrobial agents. Dilution antimicrobial susceptibility tests were carried out on two kinds of microbes (Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli) according to the standard method recommended by Clinical and Laboratory Standards Institute, CLSI-2015-M07-A10. The results showed that the antimicrobial effect is larger, the higher the concentration of ZnO nano particles in solution. It was also found that Gram-positive microbes are more sensitive to ZnO nano particles when compared with the Gram-negative ones. The minimum inhibitory concentration (MIC) for E. coli was found to be 50 mg/mL while that for S. aureus was 25 mg/mL. The minimum bactericidal concentration (MBC) was 1600 mg/mL for E. coli and 800 mg/mL for S. aureus.

https://doi.org/10.47014/15.2.4
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