Effect of Prepackage and Postpackage Pasteurization on Postprocess Elimination of Listeria monocytogenes on Deli Turkey Products
- 1 November 2004
- journal article
- Published by Elsevier in Journal of Food Protection
- Vol. 67 (11) , 2472-2479
- https://doi.org/10.4315/0362-028x-67.11.2472
Abstract
Surface pasteurization for inactivation of Listeria monocytogenes was evaluated for radiant heat prepackage pasteurization, submersed water postpackage pasteurization, and combinations of the two techniques on various types of ready-to-eat deli turkey products obtained from at least four different manufacturers. Products were inoculated either by in-package liquid inoculum or surface sponge-contact with approximately 109 CFU of L. monocytogenes. Additional testing of radiant heat pasteurization was performed with low-level inoculation of product undersides with approximately 100 CFU of L. monocytogenes followed by enrichment recovery after pasteurization. Prepackage pasteurization provided 2.0 to 2.8 log reductions when processed for 60 s and 2.8 to 3.8 log reductions when processed for 75 s. An improved radiant oven provided 3.53 (60 s) and 4.76 (75 s) log reductions of L. monocytogenes. No positive samples were detected after enrichment when 40 samples of deli turkey (4 to 4.5 kg) undersides were inoculated at low levels and processed for 75 s. Submersed water postpackage pasteurization provided 1.95 to 3.0 log reductions when processed for 2, 3, 4, or 5 min, and combinations of the two processes gave 3.0 to 4.0 log inactivation of L. monocytogenes using either 60 + 60 s or 60 + 90 s for the prepackage and postpackage pasteurization processes, respectively. These processes, either individually or in combination, can provide postprocess elimination of bacteria for the manufacture of safe ready-to-eat deli meats.Keywords
This publication has 11 references indexed in Scilit:
- Thermal Inactivation of Listeria monocytogenes on Ready-to-Eat Turkey Breast Meat Products during Postcook In-Package Pasteurization with Hot WaterJournal of Food Protection, 2003
- Prepackage Surface Pasteurization of Ready-to-Eat Meats with a Radiant Heat Oven for Reduction of Listeria monocytogenesJournal of Food Protection, 2003
- Molecular Characterization of Listeria monocytogenes Isolated from a Poultry Further Processing Facility and from Fully Cooked ProductJournal of Food Protection, 2002
- Postpackage Pasteurization of Ready-to-Eat Deli Meats by Submersion Heating for Reduction of Listeria monocytogenesJournal of Food Protection, 2002
- Pathogen Testing of Ready-to-Eat Meat and Poultry Products Collected at Federally Inspected Establishments in the United States, 1990 to 1999Journal of Food Protection, 2001
- Occurrence of Listeria species in retail poultry meat and comparison of a cultural/immunoassay for their detectionInternational Journal of Food Microbiology, 2001
- Incidence and principal sources of Listeria spp. and Listeria monocytogenes contamination in processed meats and a meat processing plantFood Microbiology, 1999
- Prevalence of Listeria spp. in meat and poultry productsFood Control, 1996
- Reduction of Listeria monocytogenes in Precooked Vacuum-Packaged Beef Using Postpackaging PasteurizationJournal of Food Protection, 1993
- Survival of Listeria monocytogenes in Postpasteurized Precooked Beef RoastsJournal of Food Protection, 1993