B Survival of Spray beef Initial wash with water reduced N. Clayton, 2002. S. E. coli – carcasses 80 psi, O157:H7 by more than 2.5 log units unpublished thesis from U. typhimurium 32°C for 15 and reduced and Kentucky Listeria Clostridium seconds with 3% by 3 log units. acetic acid (pH 2.69) A hot water A hot water treatment 127º F (53º C) treatment 127º F for 10 seconds, than a 10 second flame (53º C) for 10 singe, 50ppm chlorine or 2% lactic seconds on pork acid on pork carcasses resulted in the carcasses, than a reduction of by 3.7 log S. typhimurium 10 second flame units. singe, 50 ppm chlorine or 2% lactic acid B A hot water A hot treatment 127º F (53º C) for E. coli – O157:H7 treatment and 127º F 10 seconds on pork carcasses, than a (53º C) for 10 10 second flame singe, 50ppm chlorine Salmonella seconds on pork or 2% lactic acid combined with typhimurium contamination carcasses, than a additional hot water rinse resulted in 10 second flame the reduction of by 4.7 S. typhimurium singe, 50ppm log units. chlorine or 2% lactic acid combined with additional hot water rinse.
B – Survival of S. typhimurium Spray beef carcasses 80 psi, 32°C for 15 seconds with 3% acetic acid (pH 2.69) Initial wash with water reduced E. coli O157:H7 by more than 2.5 log units and reduced Listeria and Clostridium by 3 log units. N. Clayton, 2002. unpublished thesis from U. Kentucky A hot water treatment 127º F (53º C) for 10 seconds on pork carcasses, than a 10 second flame singe, 50 ppm chlorine or 2% lactic acid A hot water treatment 127º F (53º C) for 10 seconds, than a 10 second flame singe, 50ppm chlorine or 2% lactic acid on pork carcasses resulted in the reduction of S. typhimurium by 3.7 log units. B – E. coli O157:H7 and Salmonella typhimurium contamination A hot water treatment 127º F (53º C) for 10 seconds on pork carcasses, than a 10 second flame singe, 50ppm chlorine or 2% lactic acid combined with additional hot water rinse. A hot treatment 127º F (53º C) for 10 seconds on pork carcasses, than a 10 second flame singe, 50ppm chlorine or 2% lactic acid combined with additional hot water rinse resulted in the reduction of S. typhimurium by 4.7 log units.
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