Comparative Risk Assessment for Intact and Non-Intact (Tenderized) Beef
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Cooking Inactivation of Shiga Toxin Producing Escherichia coli (STEC) in Non-intact Beefs--a mini-Review
Escherichia coli O157:H7 and Non-O157 shiga toxin producing E. coli (STEC) serogroups O26, O45, O103, O111, O121, or O145 are both considered adulterated in non-intact beefs. Forty to fifty-eight percent of U.S. consumers prefer to order beef steaks of medium rare to rare status. From 2000 to 2007, undercooked non-intact beef products have been involved in several outbreaks in the United States...
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The efficacy of hydrodynamic pressure (HDP) treatment for inactivation of Escherichia coli O157:H7 in blade-tenderized beef steaks was studied. Beef steaks (N = 48) were inoculated with a five-strain cocktail of Escherichia coli O157:H7 and treated with blade tenderization (BT), HDP or a combination of BT followed by HDP (BTH). Control and treated steaks were cooked to 54.4C (undercooked), 62.8...
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