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Evaluation of a Phosphate To Control Pathogen Growth in Fresh and Processed Meat Products

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Abstract:

The efficacy of a phosphate blend, Bekaplus MSP, to inhibit the growth of foodborne pathogens in fresh or processed meat products was studied. The following products and challenge microorganisms were tested: ground beef, Escherichia coli O157:H7; linked smoked sausage, Salmonella typhimurium and L. monocytogenes; cured smoked ham, S. typhimurium and L. monocytogenes; and fresh pork sausage, E. coli O157:H7. All the products were prepared with or without 0.5% phosphate, individually inoculated with the challenge microorganism (103 CFU/g of meat), and stored at either 4, 12, or 20°C. There was minimal or no effect of the phosphate blend on the growth of L. monocytogenes or S. typhimurium. The temperature of storage had a significant effect (P < 0.05) on the population of E. coli O157:H7 in ground beef and fresh pork sausage with phosphate. However, the presence of phosphate in the ground beef had no effect (P > 0.05) on E. coli O157:H7, but the presence of phosphate in the fresh pork sausage had a significant effect (P < 0.05) on controlling E. coli O157:H7. These results indicate that this phosphate blend could be used in fresh pork sausage to help inhibit the growth of E. coli O157:H7.

Keywords: E. COLI O157:H7; L. MONOCYTOGENES; PHOSPHATES; PROCESSED MEATS; S. TYPHIMURIUM

Document Type: Research Article

Affiliations: 1: Department of Food Science and Technology, University of Nebraska—Lincoln, Lincoln, Nebraska, 68583-0808, USA 2: Department of Animal Science, University of Nebraska—Lincoln, Lincoln, Nebraska, 68583-0808, USA

Publication date: 1996-04-01

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