Pre-Chill Spray of Chicken Carcasses to Reduce Salmonella typhimurium

Authors

  • YANBIN LJ,

    1. Authors Li, Walker, and Xiong are with the Dept. of Biological & Agricultural Engineering and author Slavik is with the Dept. of Poultry Science, Univ. of Arkansas, Fayetteville, AR 72701.
    Search for more papers by this author
  • MICHAEL F. SLAVIK,

    1. Authors Li, Walker, and Xiong are with the Dept. of Biological & Agricultural Engineering and author Slavik is with the Dept. of Poultry Science, Univ. of Arkansas, Fayetteville, AR 72701.
    Search for more papers by this author
  • JOEL T. WALKER,

    1. Authors Li, Walker, and Xiong are with the Dept. of Biological & Agricultural Engineering and author Slavik is with the Dept. of Poultry Science, Univ. of Arkansas, Fayetteville, AR 72701.
    Search for more papers by this author
  • HUA XIONG

    1. Authors Li, Walker, and Xiong are with the Dept. of Biological & Agricultural Engineering and author Slavik is with the Dept. of Poultry Science, Univ. of Arkansas, Fayetteville, AR 72701.
    Search for more papers by this author

  • We thank P.M. Matsler and J.P. Huang for technical assistance. This research was funded by the Food Safety Consortium and the Southeastern Poultry & Egg Association.

ABSTRACT

A test chamber was designed and constructed and prechill chicken carcasses inoculated with Salmonella typhimurium were treated in it. They were sprayed with tap water, 0.85% sodium chloride (NaCl), 5% or 10% trisodium phosphate (TSP), 5% or 10% sodium bisulfate (SBS), 0.1% cetylpyridinium chloride (CPC), or 1% lactic acids (LAC) at 207, 345 or 827 kPa pressure for either 30 or 90 sec exposure time. Samples were taken from carcass wash water to determine the most probable number of Salmonella. Compared to tap water spraying, 0.85% NaCl spraying did not significantly reduce Salmonella. The greatest reductions of S. typhimurium, by 10% TSP, 10% SBS, 0.1% CPC or 1% LAC spraying, were 3.7, 2.4, 1.6 or 1.6 log in 90 sec treatments, respectively.

Ancillary