Abstract
The aim of the present work was to investigate the antibacterial effects of four different decontaminants [slightly acidic electrolysed water (SAEW), chlorine dioxide, calcium oxide, and nisin (N)] and two different application methods (spraying, S; and immersion, I) on Salmonella Typhimurium and Listeria monocytogenes strains on chicken meats. The decontamination effect of each solution was applied by spraying and immersion on days 0 (2 h after application), 1, 3, and 6. It was determined that SAEWI's antibacterial activity against S. Typhimurium continued from day 0 (0.85 log reduction) during the cold storage. It was observed that NS and NI applications decreased the number of L. monocytogenes by 2.82 - 2.76 log/g, respectively, on day 0 as compared to the control group; and had the strongest antibacterial effect in terms of sustaining the effect during cold storage. It was found that SAEWS had a weak antibacterial effect against L. monocytogenes, but had a stronger antibacterial activity against S. Typhimurium, the most important pathogen of poultry slaughterhouses and poultry meats. In conclusion, SAEWS is a decontaminant that could be included in Salmonella control programs in slaughterhouses, due to its antibacterial effect against Salmonella species.
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