Monitoring of Pig Slaughter Stages and Correlation in the Prevalence of Pathogens and Levels of Microorganisms That Indicate Microbiological Quality and Hygiene Using a Predictive Model

Pig production is relevant to the Brazilian economy. Different stages of the raising and slaughtering process influence the microbiological quality of pig products and by-products. Microbiological analysis and hazard analysis and critical control points (HACCPs) are tools for monitoring microbiologi...

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Main Authors: Elton Rodrigo Cê, Audecir Giombelli, Jalusa Deon Kich, Karla Suzana Moresco, Andresa Miranda, Mayka Reghiany Pedrão, Gracielle Johann, Andréa Cátia Leal Badaró, Elisabete Hiromi Hashimoto, Alessandra Machado-Lunkes
Format: Article
Language:English
Published: Elsevier 2023-01-01
Series:Journal of Food Protection
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Online Access:http://www.sciencedirect.com/science/article/pii/S0362028X22030150
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author Elton Rodrigo Cê
Audecir Giombelli
Jalusa Deon Kich
Karla Suzana Moresco
Andresa Miranda
Mayka Reghiany Pedrão
Gracielle Johann
Andréa Cátia Leal Badaró
Elisabete Hiromi Hashimoto
Alessandra Machado-Lunkes
author_facet Elton Rodrigo Cê
Audecir Giombelli
Jalusa Deon Kich
Karla Suzana Moresco
Andresa Miranda
Mayka Reghiany Pedrão
Gracielle Johann
Andréa Cátia Leal Badaró
Elisabete Hiromi Hashimoto
Alessandra Machado-Lunkes
author_sort Elton Rodrigo Cê
collection DOAJ
description Pig production is relevant to the Brazilian economy. Different stages of the raising and slaughtering process influence the microbiological quality of pig products and by-products. Microbiological analysis and hazard analysis and critical control points (HACCPs) are tools for monitoring microbiological quality indicator microorganisms. The construction of predictive models can assist the process of monitoring the microbiological quality of pig products. This study aimed to map the slaughter stages and develop a model to predict the absence or presence of Salmonella based on the process variables (distance from the farm to the slaughterhouse and aerobic mesophilic) and analyze their influence on contamination indicator microorganisms. A total of 810 samples were collected at nine stages of the slaughter process (bleeding, scalding, dehairing, singeing, washing, evisceration, inspection, final washing, and chilling). The binary class predictive model was used as a microbiological quality predictor at the slaughter stages. Salmonella was identified at all process stages, with lower contamination levels at the scalding and chilling stages, whereas the highest levels were found at the dehairing and bleeding stages. The predictive model revealed an accuracy of about 85% for Salmonella being a tool to monitor the microbiological quality of pig slaughter.
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spelling doaj.art-511a757982c0427fa9793d349f784aed2023-07-23T04:53:39ZengElsevierJournal of Food Protection0362-028X2023-01-01861100034Monitoring of Pig Slaughter Stages and Correlation in the Prevalence of Pathogens and Levels of Microorganisms That Indicate Microbiological Quality and Hygiene Using a Predictive ModelElton Rodrigo Cê0Audecir Giombelli1Jalusa Deon Kich2Karla Suzana Moresco3Andresa Miranda4Mayka Reghiany Pedrão5Gracielle Johann6Andréa Cátia Leal Badaró7Elisabete Hiromi Hashimoto8Alessandra Machado-Lunkes9Graduate Program of Food Technology, Federal University of Technology-Parana, Francisco Beltrão-PR, Londrina-PR, BrazilSchool of Pharmacy, Federal University of Minas Gerais, Belo Horizonte-MG, BrazilBrazilian Agricultural Research Corporation (EMBRAPA), Concórdia-SC, BrazilGraduate Program of Food Technology, Federal University of Technology-Parana, Francisco Beltrão-PR, Londrina-PR, Brazil; Federal University of Fronteira Sul, Realeza-PR, BrazilGraduate Program of Food Technology, Federal University of Technology-Parana, Francisco Beltrão-PR, Londrina-PR, BrazilGraduate Program of Food Technology, Federal University of Technology-Parana, Francisco Beltrão-PR, Londrina-PR, BrazilGraduate Program of Food Technology, Federal University of Technology-Parana, Francisco Beltrão-PR, Londrina-PR, BrazilDepartment of Agricultural Sciences, Federal University of Technology-Parana, Francisco Beltrão-PR, BrazilGraduate Program of Food Technology, Federal University of Technology-Parana, Francisco Beltrão-PR, Londrina-PR, BrazilGraduate Program of Food Technology, Federal University of Technology-Parana, Francisco Beltrão-PR, Londrina-PR, Brazil; Corresponding author.Pig production is relevant to the Brazilian economy. Different stages of the raising and slaughtering process influence the microbiological quality of pig products and by-products. Microbiological analysis and hazard analysis and critical control points (HACCPs) are tools for monitoring microbiological quality indicator microorganisms. The construction of predictive models can assist the process of monitoring the microbiological quality of pig products. This study aimed to map the slaughter stages and develop a model to predict the absence or presence of Salmonella based on the process variables (distance from the farm to the slaughterhouse and aerobic mesophilic) and analyze their influence on contamination indicator microorganisms. A total of 810 samples were collected at nine stages of the slaughter process (bleeding, scalding, dehairing, singeing, washing, evisceration, inspection, final washing, and chilling). The binary class predictive model was used as a microbiological quality predictor at the slaughter stages. Salmonella was identified at all process stages, with lower contamination levels at the scalding and chilling stages, whereas the highest levels were found at the dehairing and bleeding stages. The predictive model revealed an accuracy of about 85% for Salmonella being a tool to monitor the microbiological quality of pig slaughter.http://www.sciencedirect.com/science/article/pii/S0362028X22030150Aerobic mesophilesEnterobacteriaceaeEscherichia coliSalmonella
spellingShingle Elton Rodrigo Cê
Audecir Giombelli
Jalusa Deon Kich
Karla Suzana Moresco
Andresa Miranda
Mayka Reghiany Pedrão
Gracielle Johann
Andréa Cátia Leal Badaró
Elisabete Hiromi Hashimoto
Alessandra Machado-Lunkes
Monitoring of Pig Slaughter Stages and Correlation in the Prevalence of Pathogens and Levels of Microorganisms That Indicate Microbiological Quality and Hygiene Using a Predictive Model
Journal of Food Protection
Aerobic mesophiles
Enterobacteriaceae
Escherichia coli
Salmonella
title Monitoring of Pig Slaughter Stages and Correlation in the Prevalence of Pathogens and Levels of Microorganisms That Indicate Microbiological Quality and Hygiene Using a Predictive Model
title_full Monitoring of Pig Slaughter Stages and Correlation in the Prevalence of Pathogens and Levels of Microorganisms That Indicate Microbiological Quality and Hygiene Using a Predictive Model
title_fullStr Monitoring of Pig Slaughter Stages and Correlation in the Prevalence of Pathogens and Levels of Microorganisms That Indicate Microbiological Quality and Hygiene Using a Predictive Model
title_full_unstemmed Monitoring of Pig Slaughter Stages and Correlation in the Prevalence of Pathogens and Levels of Microorganisms That Indicate Microbiological Quality and Hygiene Using a Predictive Model
title_short Monitoring of Pig Slaughter Stages and Correlation in the Prevalence of Pathogens and Levels of Microorganisms That Indicate Microbiological Quality and Hygiene Using a Predictive Model
title_sort monitoring of pig slaughter stages and correlation in the prevalence of pathogens and levels of microorganisms that indicate microbiological quality and hygiene using a predictive model
topic Aerobic mesophiles
Enterobacteriaceae
Escherichia coli
Salmonella
url http://www.sciencedirect.com/science/article/pii/S0362028X22030150
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