Food Protection Trends - September 2011 - (Page 569)

Copyright© 2011, International Association for Food Protection 6200 Aurora Ave., Suite 200W, Des Moines, IA 50322-2864 Food Protection Trends, Vol. 31, No. 9, Pages 569–574 Localized Chemical Decontamination of Cattle Hides to Reduce Microbial Loads and Prevalence of Foodborne Pathogens JOHN A. SCANGA,1* ANDY W. BUSCHOW,2 JONATHAN L. KAUK,2 TIMOTHY E. BURK,2 BIJAN KOOHMARAIE,2 MICHAEL J. DE LA ZERDA,2 ALI MOHSENI MOTLAGH,3 MANSOUR SAMADPOUR2 and MOHAMMAD KOOHMARAIE2 1 Elanco Animal Health, 2500 Innovations Way N., Greenfield, IN 46140, USA; 2IEH Laboratories and Consulting Group, 15300 Bothell Way NE, Lake Forest Park, WA 98155, USA; 3American Foods Group, LLC, 500 South Washington St., Green Bay, WI 54301, USA ABSTRACT Hides of cattle have been shown to be the principal source of E. coli O157:H7 at slaughter. This project was conducted to determine if localized interventions are a viable option for cattle hide decontamination. Localized decontaminant treatments consisting of negative control (CT), warm water (H2O), 6.0% lactic acid (LA), 5.0% acetic acid (AA), and 2.7% sodium hydroxide (NaOH) were applied to the pattern lines of beef hides. Samples were collected before and after treatment application and from dressed carcass surfaces and were analyzed for aerobic bacterial plate counts (APC), total coliform count (TCC), biotype I E. coli count (ECC), E. coli O157:H7, and Salmonella. APCs on cattle hides were reduced by 0.11, 2.62, 2.30 and 1.66, TCCs were reduced by -0.09, 3.82, 3.76 and 3.63, and ECCs were reduced by -0.03, 3.77, 3.83 and 3.54 log CFU/400 cm2 following application of H2O, LA, AA and NaOH, respectively. Prevalence of E. coli O157:H7 was reduced by -6.0%, 46.0%, 28.0% and 53.2% and Salmonella was reduced by -20.0%, 0% (none detected), 24.0% and 17.1% following application of H2O, LA, AA and NaOH, respectively. Use of localized chemical interventions on cattle hides is an effective mechanism for reducing incoming loads of bacteria on hide surfaces and reducing foodborne pathogen prevalence on dressed carcasses. A peer-reviewed article * Author for correspondence: Phone: +1 970.222.3340; Fax: +1 970.834.9728 E-mail: scangajo@lilly.com SEPTEMBER 2011 | FOOD PROTECTION TRENDS 569 http://www.foodprotection.org/files/food-protection-trends/Sep-11-Scanga.pdf

Table of Contents for the Digital Edition of Food Protection Trends - September 2011

Food Protection Trends - September 2011
Contents
Sustaining Members
Food for Thought from Your President
Commentary from the Executive Director
Epidemiological Approaches to Food Safety
Localized Chemical Decontamination of Cattle Hides to Reduce Microbial Loads and Prevalence of Foodborne Pathogens
General Interest Paper – Implementation of the Food Safety Modernization Act
Call for 2012 Secretary Nominations
New Members
What’s Happening in Food Safety
Industry Products
Coming Events
Advertising Index
Journal of Food Protection Table of Contents
Membership Application

Food Protection Trends - September 2011