Evaluation of Three Isolation Experiments for Campylobacter Bacteriophages from Chicken Skin: A Comparative Study
Asian Food Science Journal,
Background: Campylobacter strains are of the leading pathogens causing bacterial gastroenteritis, whose infections are generally considered to be one of the most common foodborne illnesses of animal origin. The etiology of this infection often goes back to eating contaminated raw meat or infected poultry. The bacteria are present in abundance in chicken skin. The use of appropriate bacteriophages is one of the most effective experiments in eliminating Campylobacter strains. Phage therapy refers to the use of bacteriophages to treat bacterial infections.
Aim: Accordingly, the present study aimed to compare three experiments of bacteriophage isolation in chicken skin.
Experiments: Thus, 15 samples of chicken skin were collected from five different fresh chicken suppliers in Ghaemshahr, Iran. The samples were transported to the laboratory aseptically in the vicinity of ice, and then cultured in blood agar medium, and the isolates were identified by various tests including gram staining, catalase and oxidase tests.
Results: The results were compared before and after three bacteriophage isolation experiments. Out of 15 chicken skin samples tested in all three experiments, 6 (40%) strains were identified in the first experiment, 8 (53.4%) strains in the second experiment and 12 (20%) strains in the third experiment after bacteriophage therapy.
Conclusion: The bacteriophage isolation experiments alone or in combination with other intervention strategies are recommended as promising tools for greater food safety. These experiments can be useful to increase food safety and reduce the risk of infection in humans through the consumption of potentially infected edible parts of chicken. According to the results of this study, among the three proposed experiments, the experiment of chicken skin enrichment in Bolton selective media containing target isolates was the most efficient approach, which showed a high limit of detection at low concentrations and the highest rate of phage recovery. This can be a more reliable way to isolate the Campylobacter bacteriophages and eliminate the Campylobacter strains.
- campylobacter bacteriophage
- chicken skin
- food contamination.
How to Cite
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