Antibacterial Effect of Silver Nanoparticles Against Four Foodborne Pathogens
| Author | Mehdi Zarei | en |
| Author | Amirhesam Jamnejad | en |
| Author | Elahe Khajehali | en |
| Orcid | Mehdi Zarei [0000-0002-2965-7773] | en |
| Issued Date | 2014-01-01 | en |
| Abstract | Background:: There is increased demand for improved disinfection methods due to microorganisms resistant to multiple antimicrobial agents. Numerous types of disinfectants are available with different properties; but the proper disinfectant must be carefully selected for any specific application to obtain the desired antimicrobial effect. Objectives:: Antimicrobial effect of a commercial nanosilver product, NanoCid® L2000, against some foodborne pathogens was evaluated. Materials and Methods:: Minimum inhibitory concentrations (MIC) were determined by monitoring the growth of bacteria at 600 nm, after 24 hours incubation at 35°C. Minimum bactericidal concentrations (MBC) were determined based on 3 log decrease in the viable population of the pathogens after incubation of nutrient agar plates at 35°C for 24 hours. The required exposure time for 3 log reduction in the viable population of the tested pathogens was determined as the minimum exposure time for efficient bactericidal activity. Results:: The MIC values of Ag NPs against tested pathogens were in the range of 3.12-6.25 µg/mL. While Listeria monocytogenes showed the MIC value of 6.25 µg/mL, Escherichia coli O157:H7, Salmonella typhimurium and Vibrio parahaemolyticus all showed the MIC values of 3.12 µg/mL. However, all the pathogens showed the same MBC value of 6.25 µg/mL. To obtain an efficient bactericidal activity against E. coli O157:H7 and S. typhimurium, the exposure time should be at least ca. 6 hours., while this time was ca. 5 hours for V. parahaemolyticus and ca. 7 hours for L. monocytogenes. Conclusions:: Silver nanoparticles showed great antibacterial effectiveness on four important foodborne pathogens. Therefore, Ag NPs could be a good alternative for cleaning and disinfection of equipment and surfaces in food-related environments. | en |
| DOI | https://doi.org/10.5812/jjm.8720 | en |
| Keyword | Silver | en |
| Keyword | Nanoparticles | en |
| Keyword | Pathogen | en |
| Keyword | Disinfection | en |
| Keyword | Microbial Sensitivity Tests | en |
| Publisher | Brieflands | en |
| Title | Antibacterial Effect of Silver Nanoparticles Against Four Foodborne Pathogens | en |
| Type | Research Article | en |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- 18632-pdf.pdf
- Size:
- 94.15 KB
- Format:
- Adobe Portable Document Format
- Description:
- Article/s PDF