评估在加工过程中用于减少牛头部大肠杆菌O157:H7的各种抗菌干预措施。

Evaluation of various antimicrobial interventions for the reduction of Escherichia coli O157:H7 on bovine heads during processing.

作者信息

Kalchayanand Norasak, Arthur Terrance M, Bosilevac Joseph M, Brichta-Harhay Dayna M, Guerini Michael N, Wheeler Tommy L, Koohmaraie Mohammad

机构信息

US Department of Agriculture, Agricultural Research Service, Roman L. Hruska US Meat Animal Research Center, Nebraska 68933-0166, USA.

出版信息

J Food Prot. 2008 Mar;71(3):621-4. doi: 10.4315/0362-028x-71.3.621.

DOI:10.4315/0362-028x-71.3.621

PMID:18389711

Abstract

The effectiveness of electrolyzed oxidizing water, FreshFx, hot water, DL-lactic acid, and ozonated water was determined using a model carcass spray-washing cabinet. A total of 140 beef heads obtained from a commercial processing line were inoculated with Escherichia coli O157:H7 on the cheek areas. Each head was exposed to a simulated preevisceration wash and then had antimicrobial wash treatments. Hot water, lactic acid, and FreshFx treatments reduced E. coli O157:H7 on inoculated beef heads by 1.72, 1.52, and 1.06 log CFU/cm2, respectively, relative to the simulated preevisceration wash. Electrolyzed oxidizing water and ozonated water reduced E. coli O157:H7 less than 0.50 log CFU/cm2. Hot water, lactic acid, and FreshFx could be used as decontamination washes for the reduction of E. coli O157:H7 on bovine head and cheek meat.

摘要

使用一个模拟屠体喷淋清洗柜来测定电解氧化水、FreshFx、热水、DL-乳酸和臭氧水的效果。从一条商业加工生产线获取的总共140个牛头在脸颊部位接种了大肠杆菌O157:H7。每个牛头都经历了一次模拟的宰前清洗，然后进行抗菌清洗处理。相对于模拟的宰前清洗，热水、乳酸和FreshFx处理分别使接种牛头的大肠杆菌O157:H7减少了1.72、1.52和1.06 log CFU/cm²。电解氧化水和臭氧水使大肠杆菌O157:H7减少的量小于0.50 log CFU/cm²。热水、乳酸和FreshFx可用作去污清洗剂，以减少牛头和脸颊肉上的大肠杆菌O157:H7。