Fate of Escherichia coli O157:H7 in ground beef following high-pressure processing and freezing.

@article{Black2010FateOE,
  title={Fate of Escherichia coli O157:H7 in ground beef following high-pressure processing and freezing.},
  author={Elaine P Black and Kirsten A. Hirneisen and Dallas G. Hoover and Kalmia E. Kniel},
  journal={Journal of applied microbiology},
  year={2010},
  volume={108 4},
  pages={1352-60}
}
AIMS The purposes of this study were to evaluate the efficacy of high pressure to inactivate Escherichia coli O157:H7 in ground beef at ambient and subzero treatment temperatures and to study the fate of surviving bacteria postprocess and during frozen storage. METHODS AND RESULTS Fresh ground beef was inoculated with a five-strain cocktail of E. coli O157:H7 vacuum-packaged, pressure-treated at 400 MPa for 10 min at -5 or 20 degrees C and stored at -20 or 4 degrees C for 5-30 days. A 3-log… CONTINUE READING

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