Effects of various processing techniques and interventions on beef safety and shelf-life
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Two experiments were conducted; the first evaluated decrease in log survival of pathogenic bacterial populations using three antimicrobial interventions (Peroxyacetic acid – PAA; Lactic Acid – LA; lactic/citric acid blend – LCA) applied at a spray cabinet used just before carcass chilling. Efficacy was evaluated using a Shiga-toxin producing Eschericia coli (STEC) inoculation cocktail that incorporated two strains of E. coli O157:H7 and 12 non-O157 STEC strains. In addition, this study was intended to validate the use of non pathogenic E. coli to serve as surrogates for the aforementioned STEC ...