Effects of various chemical decontaminants on Salmonella Typhimurium survival in chicken carcasses

Abstract Salmonella Typhimurium is one of the most common foodborne pathogens isolated from poultry meat. The goal of this study was to investigate S. Typhimurium survival in broiler carcasses exposed to ozone, lactic acid, sodium hypochlorite and levulinic acid. S. Typhimurium was inoculated into broiler carcasses, which were divided into eight treatment groups, including a positive and negative control group. After standardized bacterial culture methods, microbiological analysis revealed a statistically significant relationship between the number of bacteria detected and the concentration and application time in all the treatment groups (p 0.05). Among the decontaminants, the most effective chemical solution was 3% LEV. The ozone treatment caused a lower logarithmic decrease in S. Typhimurium numbers at all treatment times as compared with that in the other treatment groups.