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Analysis of antimicrobial properties of silver and copper nanoparticles compared to sodium hypochlorite against food contaminating pathogens
Forogh Mohammadi , Maryam Karimi-Dehkordi , Ashkan Pourshahbaz Pourshahbaz *
Islamic Azad University, Sanandaj, Iran , devsiecnce1374@gmail.com
Abstract:   (1119 Views)
Consumers in poor nations are at risk from foodborne infections. Nanotechnology may help find food-grade antimicrobials. This research compares the antibacterial effects of silver and copper nanoparticles (NPs) and sodium hypochlorite on food-contaminating pathogens Salmonella typhimurium, Listeria monocytogenes, and Kluyveromyces marxianus. This work chemically produced silver and copper NPs. We discovered the produced nanoparticles' physical and chemical properties. SEM verified morphology and size. Synthesized copper and silver NPs were X-ray diffraction-analyzed. To assess the antibacterial activity of silver, copper NPs, and sodium hypochlorite, the MIC and MBC were defined. Diffusion tests from the well assessed nanoparticle antibacterial activity. SEM micrographs revealed copper and silver nanoparticles' spherical shape. This study found functional group stretching vibrations in silver and copper NPs using FTIR. XRD revealed copper and silver NP crystal structures. In the treatment of infections with varying silver and copper nanoparticle concentrations, non-growth halo indicated antibacterial efficacy. In addition, silver and copper nanoparticles have substantial MIC/MBC against the infections. Producing food packaging materials that are safe and long-lasting requires bacterial sensitivity to nanoparticles. This work synthesized silver and copper NPs to minimize food contamination and health hazards.

 
Keywords: Antimicrobial, Sodium hypochlorite, Silver nanoparticle, Copper nanoparticle
     
Type of Study: Original Article | Subject: Microbiology
Received: 2024/05/10 | Revised: 2025/04/6 | Accepted: 2025/03/30
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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Creative Commons Licence
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.



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