Investigation of Single and Multiple Effects of Lactic Acid,Cetylpyridinium Chloride and Trisodium Phosphate on the Chicken Carcasses Contaminated with E. coli O157:H7 and Listeria monocytogenes [Escherichia coli O157:H7 ve listeria monocytogenes i̇le kontamine edilmiş broyler karkaslari{dotless}nda laktik asit,cetylpyridinium chloride ve trisodyum fosfat'i{dotless}n tekil ve kombine etkilerinin i̇ncelenmesi]

The study was conducted to investigate the effects of cetylpyridinium chloride (cpc),trisodium phosphate (tsp),lactic acid (la) and their combinations on survival of e. coli o157:h7 and l. monocytogenes on broiler carcasses. broiler carcasses were contaminated with 5-strains of e. coli o157:h7 and 10-strains of l. monocytogenes. then,the carcasses were subjected to decontamination treatments with 0.2% or 0.4 cpc,8% or 12% tsp,2% or 4 la,2% la + 8% tsp,0.2% cpc + 2% la or 0.2% cpc + 8% tsp at 20°c for 15 min. effects of treatments on survival of the pathogens were determined. the differences in levels of both pathogens between before and after were significant (p<0.05). the most effective decontaminant on e. coli o157:h7 was 0.4% cpc with reduction 3.36 log10 cfu/ml and the least effective decontaminant 2% la with reduction of 1.91 log10 cfu/ml. the most effective decontaminant on l. monocytogenes was 0.4% cpc with reduction 5.04 log10 cfu/ml and the least effective decontaminant 2% la with reduction of 1.84 log10 cfu/ml. as a result,the most effective decontaminant against e. coli o157:h7 and l. monocytogenes on chicken carcasses was found to be cpc followed by tsp and la.