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Growth of Listeria monocytogenes, Aeromonas hydrophila, and Yersinia enterocolitica on Vacuum and Saturated Carbon Dioxide Controlled Atmosphere-Packaged Sliced Roast Beef

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The growth of Listeria monocytogenes, Aeromonas hydrophila and Yersinia enterocolitica on sliced roast beef packaged under vacuum or saturated CO2 controlled atmosphere conditions was measured. At -1.5°C, the pathogens declined in numbers in the controlled atmosphere packs but were able to grow under vacuum packaging. At 3°C, growth occurred, with maximum numbers being reached at the end of the product's storage life. The increased shelf life of sliced roast beef incubated under a carbon dioxide controlled atmosphere compared to vacuum-packaged beef did not, therefore, bring with it a concomitant risk associated with the increased growth of these three pathogens over the extended storage period.

Document Type: Research Article

Affiliations: Meat industry Research institute of New Zealand, P. O. Box 617, Hamilton, New Zealand

Publication date: 1994-03-01

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