Related Experiment Video
Updated: Jan 26, 2026

Colorimetric Paper-based Detection of Escherichia coli, Salmonella spp., and Listeria monocytogenes from Large Volumes of Agricultural Water
Published on: June 9, 2014
Transfer of Listeria monocytogenes and Salmonella typhimurium Between Beef Tissue Surfaces 1
1U. S. Department of Agricultural, Agricultural Research Service, Roman L. Ilruska Meat Animal Research Center, P. O. Box 166 Clay Center, NE 68933.
Abstract:
Beef tissue surfaces were inoculated with either Listeria monocytogenes or Salmonella typhimurium and placed in contact with uninoculated tissue surfaces. The transfer of bacteria from one surface to another was determined under conditions designed to simulate contamination during meat processing. Bacterial transfer decreased when the initial inoculum was allowed to adsorb to the base tissue prior to contact with the second tissue. The type of base tissue was a factor (P<0.05), with a greater transfer from fat with contact times of less than 1 min and a greater transfer from lean with longer contact times.
Related Concept Videos
Surface Tension and Surface Energy
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
Ionic Bonding and Electron Transfer
Transfer RNA Synthesis
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
Maximum Power Transfer
By substituting the entire circuit with...
Mechanisms of Heat Transfer I
Mechanisms of Heat Transfer II

