Post-harvest reduction of Salmonella in pork trimming
Schilling, M. Wes
Date of Degree
Original embargo terms
Complete embargo for 1 year||8/16/2021
Graduate Thesis - Open Access
Master of Science
College of Agriculture and Life Sciences
Department of Animal and Dairy Sciences
The objective of the current study was to determine the efficacy of 3% acetic acid in reducing Salmonella in pork trimming and the effects of such treatment on meat quality. For 15-s dipping and 5-log CFU/pork cube inoculation, only 0.2- to 0.3-log reduction was observed (P ≤ 0.026). Acetic acid worked best at 75 s and 50°C, providing 1.4-log reduction (P < 0.001), damaging Salmonella cell membranes. When an inoculated pork cube was placed at the geometrical center of 2.3-kg pork trimming, dipping at 50°C for 75 s only reduced Salmonella by 0.2 log (P = 0.040). Although dipping slightly increased lightness (P < 0.001) and decreased redness (P ≤ 0.008) on the meat surface, no inside color change was detected (P = 0.120). Neither lipid oxidation (TBARS, P = 0.644), protein solubility (P = 0.187), nor water-holding capacity (P = 0.076) were affected by treatments.
Sajeev, Dishnu, "Post-harvest reduction of Salmonella in pork trimming" (2020). Theses and Dissertations MSU. 3578.