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Article
Comparison of Homogenization by Blending or Stomaching on the Recovery of Listeria monocytogenes from Beef Tissues
Journal of Food Science (1990)
  • James S. Dickson, United States Department of Agriculture
Abstract

Homogenization by blending or stomaching was compared for the recovery of Listeria monocytogenes from inoculated intact beef tissue. There were no differences in numbers of recovered bacteria (P > 0.10) attributable to either homogenization time or method. Fewer viable bacteria (PcO.05) were recovered in phosphate buffer than either buffered peptone water or 2% trisodium citrate buffer. Tween 80 increased the numbers of bacteria recovered from fat tissue (PcO.05). Stomaching is an acceptable method for homogenizing samples for Listeria analysis.

Keywords
  • food-borne pathogen,
  • human consumption,
  • diluent
Disciplines
Publication Date
1990
Publisher Statement
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
Citation Information
James S. Dickson. "Comparison of Homogenization by Blending or Stomaching on the Recovery of Listeria monocytogenes from Beef Tissues" Journal of Food Science Vol. 55 Iss. 3 (1990)
Available at: http://works.bepress.com/james_dickson/55/