Microbiological quality assessment and validation of antimicrobials against unstressed or cold-stress adapted Salmonella and surrogate Enterococcus faecium on broiler carcasses and wings.

摘要: Abstract This study aims to evaluate the microbiological quality and efficacy of antimicrobials inactivate unstressed or cold-stress adapted Salmonella Enterococcus on broiler carcasses wings processed at a small USDA-inspected slaughter facility in West Virginia. The first part included 42 that were pre- secondarily-enriched bacterial media followed by streak-plating onto XLT-4 HardyCHROM™-agar confirmation using an API20E-kit. aerobic plate counts (APC), Escherichia coli (ECC), total coliforms (TCC), yeast/molds analyzed petri-films. second fresh inoculated with cold-stress-adapted (4 °C, 7-day) Typhimurium Tennessee, faecium ATCC 8459 (5.5 6.0 log10 CFU/mL) later dipped into peroxyacetic acid (PAA; 1,000 ppm), lactic (LA; 5%), citric blend (LCA; 2.5%), sodium hypochlorite (SH; 70 ppm) for 30 s without (carcasses) 2-min drainage (wings). surviving bacteria recovered non-selective selective agar analyze microbial population, Enterococcus. APC, TCC, Yeast/Molds 2.62, 1.08, 2.37 CFU/mL carcasses, respectively. A 40% tested positive spp. E. (0.48 1.70 CFU/mL), For antimicrobial reductions cells greater (P 0.05). reduction increased order SH ≤ LCA