Fate of Escherichia coli O157:H7, Salmonella Typhimurium DT 104, and Listeria monocytogenes in fresh meat decontamination fluids at 4 and 10°C
作者： JOHN SAMELIS , JOHN N. SOFOS , PATRICIA A. KENDALL , GARY C. SMITH
DOI: 10.4315/0362-028X-64.7.950
关键词:
摘要: Bacterial pathogens may colonize meat plants and increase food safety risks following survival, stress hardening, or proliferation in decontamination fluids (washings). The objective of this study was to evaluate the ability Escherichia coli O157:H7, Salmonella Typhimurium DT 104, Listeria monocytogenes survive grow spray-washing from fresh beef top rounds sprayed with water (10 85°C) acid solutions (2% lactic acetic acid, 55°C) during storage washings at 4 10°C air simulate plant conditions. Inoculated 104 (5.4 ± 0.1 log CFU/ml) died off lactate (pH 2.4 0.1) acetate 3.1 0.2) by 2 days either temperature. In contrast, inoculated E. O157:H7 (5.2 L. survived for least 7 days, respectively; their survival better acidic stored 4°C than 10°C....
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