Journal
MEAT SCIENCE
Volume 172, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2020.108309
Keywords
Pork; Antimicrobial intervention; Food safety; Color
Categories
Funding
- Foundation for Meat & Poultry Research Education
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The research showed that lactic acid and peroxyacetic acid treatments were effective in reducing pathogenic and surrogate bacteria on pork, while warm water treatment did not produce similar results. Objective and sensory color evaluations indicated minimal negative impacts on pork color after antimicrobial treatments. Various antimicrobial interventions were found to be effective in reducing bacteria on pork without diminishing quality.
Effect of various antimicrobial interventions on pork carcass cuts - skin-on and skinless, non-chilled and chilled - was studied. Carcass pieces were inoculated with Salmonella enterica, Shiga toxin-producing Escherichia coli (STEC), Escherichia coli pathogen surrogates or Campylobacter spp. Inoculated pieces were assigned to one of the following antimicrobial treatments: 2.5% and 5.0% room temperature lactic acid, 2.5% and 5.0% warm (55 degrees C) lactic acid, 400 ppm (0.4 mg/mL) room temperature peroxyacetic acid (PAA) or warm (55 degrees C) water. Treated pieces were sampled before antimicrobial treatment of non-chilled pork tissue, then at 30 m and 24 h posttreatment. For chilled pork, samples were collected after 24 h chilling and 30 m post-treatment. Lactic acid and PAA treatments reduced (P < 0.05) pathogenic and surrogate bacteria; warm water did not produce similar results. Objective and sensory color evaluations on treated pork indicated minimal negative impacts on pork color. Various antimicrobial interventions were effective in reducing surrogates on pork without diminishing quality.
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