Assessing Salmonella typhimurium persistence in poultry carcasses under multiple thermal conditions consistent with composting and wet rendering

Poultry Science
V VaddellaP Pandey

Abstract

Mitigation of Salmonella associated with poultry carcasses is primarily accomplished by rendering or carcass composting. While rendering temperatures and pressures are well established for pathogen inactivation in poultry carcasses, parameters controlling composting processes are less defined in part because multiple conditions and procedures are utilized. Consequently, limited knowledge exists describing the impacts of composting with varying temperature and mixing protocols with respect to the inactivation of Salmonella in poultry carcasses. To improve the existing knowledge of Salmonella survival in poultry carcasses, inactivation of Salmonella enterica serovar Typhimurium (ST) LT2 was investigated. The impacts of various composting temperatures (55, 62.5°C) and low-rendering (i.e., pasteurization) temperatures (70, 78°C) on Salmonella inactivation were tested in a bench-top setting using a ground carcass slurry and whole birds under mixed and non-mixed conditions. Results showed that the ground carcass slurry and the whole carcass exposed to temperatures consistent with composting had no detectable Salmonella after 110 h with a level of detection of one CFU/mL of ground carcass slurry and one CFU/g of whole carcasses, respe...Continue Reading

References

Apr 3, 1999·British Poultry Science·M J Lawson, A A Keeling
Feb 12, 2000·British Poultry Science·M J Lawson, A A Keeling
Feb 21, 2007·Journal of Applied Microbiology·K G Wilkinson
Sep 4, 2007·Bioresource Technology·K SivakumarD Chandrasekaran
Dec 20, 2011·Applied and Environmental Microbiology·Jinkyung KimXiuping Jiang
Sep 10, 2013·Applied and Environmental Microbiology·Zhao ChenJames Rieck
Nov 22, 2013·Gut Microbes·Deng Pan, Zhongtang Yu

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Citations

Jul 29, 2016·Poultry Science·P PandeyV Vaddella
Dec 20, 2017·Journal of Food Protection·Alejandra Ramirez-HernandezAlejandro Echeverry

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