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- Title
Control of Listeria monocytogenes on frankfurters and cooked pork chops by irradiation combined with modified atmosphere packaging.
- Authors
Kudra, Li L; Sebranek, Joseph G; Dickson, James S; Larson, Elaine M; Mendonca, Aubrey F; Prusa, Kenneth J; Cordray, Joseph C; Jackson-Davis, Armitra; Lu, Zheng
- Abstract
This study was conducted to investigate the efficacy of controlling Listeria monocytogenes on frankfurters and cooked pork chops with irradiation and modified atmosphere packaging (MAP) containing a high concentration of CO(2). Frankfurters and cooked pork chops were inoculated with a five-strain cocktail of L. monocytogenes and packaged in vacuum or high-CO(2) MAP. Irradiation was applied to each product at 0, 0.5, 1.0, or 1.5 kGy. No significant packaging effect was found for the radiation sensitivity of L. monocytogenes. Radiation D(10)-values for L. monocytogenes were 0.66 ± 0.03 and 0.70 ± 0.05 kGy on frankfurters and 0.60 ± 0.02 and 0.57 ± 0.02 kGy on cooked pork chops in vacuum and high-CO(2) MAP, respectively. High-CO(2) MAP was more effective than vacuum packaging for controlling the growth of survivors during refrigerated storage. These results indicate that irradiation and high-CO(2) MAP can be used to improve control of L. monocytogenes in ready-to-eat meats.
- Publication
Journal of food protection, 2012, Vol 75, Issue 6, p1063
- ISSN
1944-9097
- Publication type
Journal Article
- DOI
10.4315/0362-028X.JFP-11-528