Evaluation of sodium dichloroisocyanurate treatment on recovered concentrations of Salmonella enterica, Escherichia coli O157:H7, and Listeria monocytogenes from cattle hide surfaces and culture medium,Journal of Food Safety

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Evaluation of sodium dichloroisocyanurate treatment on recovered concentrations of Salmonella enterica, Escherichia coli O157:H7, and Listeria monocytogenes from cattle hide surfaces and culture medium
Journal of Food Safety ( IF 1.9 ) Pub Date : 2020-07-07 , DOI: 10.1111/jfs.12834
Wilbert Long ₁ , Majher I. Sarker ₁ , Bassam A. Annous ₂ , George C. Paoli ₃

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A major concern of the cattle industry is cross‐contamination of meat with pathogens. Cattle are exposed to fecal material, mud, and other contaminants which harbor pathogens that can be shed onto meat and meat processing equipment. Due to increased chances of meat contamination during processing, new antimicrobial formulations for carcass washing before hide removal needs to be identified and tested. Sodium dichloroisocyanurate (SDIC) has biocidal properties and belongs to the N‐halamine group of compounds. Disk diffusion assays revealed, 1,000 ppm SDIC effectively reduced pathogen concentrations. SDIC was evaluated for its effects on pathogens in Tryptic Soy Broth and results revealed that 1,000 ppm SDIC had a strong correlation with time and treatment with no bacterial growth in log CFU ml⁻¹ observed at the lowest detection level. Treatment of inoculated hides with 1,000 ppm SDIC for 5 min resulted in reduction of Salmonella enterica, Escherichia coli O157:H7, and Listeria monocytogenes at 1.97, 2.02, and 2.84 log CFU cm⁻², respectively.

中文翻译：

评价二氯异氰尿酸钠处理方法对牛皮表面和培养基中沙门氏菌，大肠杆菌O157：H7和单核细胞增生性李斯特菌的回收浓度

养牛业的一个主要问题是肉与病原体的交叉污染。牛暴露于粪便，泥浆和其他污染物中，这些污染物中含有病原体，这些病原体可以撒到肉和肉加工设备上。由于加工过程中发生肉类污染的机会增加，因此需要确定和测试用于去除hide皮之前用于washing体洗涤的新抗菌剂。二氯异氰尿酸钠（SDIC）具有杀菌作用，属于化合物的N-卤胺基团。磁盘扩散分析显示，1,000 ppm SDIC有效降低了病原体浓度。评估了SDIC对胰蛋白酶大豆肉汤中病原体的影响，结果显示1,000 ppm SDIC与时间和处理有很强的相关性，log CFU ml ^-1中无细菌生长在最低检测水平下观察到。用1,000 ppm SDIC处理接种过的生皮5分钟，分别导致肠炎沙门氏菌，大肠杆菌O157：H7和单核细胞增生性李斯特菌减少，分别为1.97、2.02和2.84 log CFU cm ^-2。

更新日期：2020-07-07

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