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Evaluation of decontamination efficacy of commonly used antimicrobial interventions for beef carcasses against Shiga toxin-producing Escherichia coli.

Authors :
Signorini, Marcelo
Costa, Magdalena
Teitelbaum, David
Restovich, Viviana
Brasesco, Hebe
García, Diego
Superno, Valeria
Petroli, Sandra
Bruzzone, Mariana
Arduini, Victor
Vanzini, Mónica
Sucari, Adriana
Suberbie, Germán
Maricel, Turina
Rodríguez, Ricardo
Leotta, Gerardo A.
Source :
Meat Science. Aug2018, Vol. 142, p44-51. 8p.
Publication Year :
2018

Abstract

In Argentina, Shiga toxin producing Escherichia coli (STEC) serogroups O157, O26, O103, O111, O145 and O121 are adulterant in ground beef. In other countries, the zero-tolerance approach to all STEC is implemented for chilled beef. Argentinean abattoirs are interested in implementing effective interventions against STEC on carcasses. Pre-rigor beef carcasses were used to determine whether nine antimicrobial strategies effectively reduced aerobic plate, coliform and E. coli counts and stx and eae gene prevalence. These strategies were: citric acid (2%; automated), acetic acid (2%; manual and automated), lactic acid (LA 2%; manual and automated), LA (3%; automated), electrolytically-generated hypochlorous acid (400 ppm; manual), hot water (82 °C; automated) and INSPEXX (0.2%; automated). Automated application of 2% LA after 30–60-min aeration and 3% LA at 55 °C were the most effective interventions. Automated application was more effective than manual application. Decontamination of beef carcasses through automated application of lactic acid and hot water would reduce public health risks associated with STEC contamination. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
03091740
Volume :
142
Database :
Academic Search Index
Journal :
Meat Science
Publication Type :
Academic Journal
Accession number :
129295326
Full Text :
https://doi.org/10.1016/j.meatsci.2018.04.009