Effect of different dry aging temperatures on Listeria innocua as surrogate for Listeria monocytogenes

Effect of different dry aging temperatures on Listeria innocua as surrogate for Listeria monocytogenes

The objective of this study was to evaluate the effect of different dry aging temperatures on the behavior of Listeria innocua used as a surrogate of L. monocytogenes. The process was performed in boneless loin pieces for up to 42 days at 2 and 8 °C. The behavior of L. innocua was influenced by the...

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Veröffentlicht in:Meat science 2019-11, Vol.157, p.107884-107884, Article 107884
Hauptverfasser: da Silva, Astrid Caroline Muniz, de Oliveira Pena, Pâmela, Pflanzer, Sérgio Bertelli, da Silva do Nascimento, Maristela
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Dry aging
Food safety
Listeria
Meat
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container_start_page 107884
container_title Meat science
container_volume 157
creator da Silva, Astrid Caroline Muniz
de Oliveira Pena, Pâmela
Pflanzer, Sérgio Bertelli
da Silva do Nascimento, Maristela
description The objective of this study was to evaluate the effect of different dry aging temperatures on the behavior of Listeria innocua used as a surrogate of L. monocytogenes. The process was performed in boneless loin pieces for up to 42 days at 2 and 8 °C. The behavior of L. innocua was influenced by the temperature, aging time, and the water activity of the beef surface (P 
doi_str_mv 10.1016/j.meatsci.2019.107884
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The process was performed in boneless loin pieces for up to 42 days at 2 and 8 °C. The behavior of L. innocua was influenced by the temperature, aging time, and the water activity of the beef surface (P &lt; .05). After 42 days, reductions of 2.38 and 3.37 log cfu/g were obtained on the beef surface aged at 2 and 8 °C, respectively. According to data predicted by the Weibull model, the samples aged at 2 °C would achieve a 4-log reduction with twice the time required for the process at 8 °C. After trimming, 66.7% of the samples aged at 2 °C were positive for L. innocua, whereas at 8 °C the rate was 33.3%. 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subjects Dry aging
Food safety
Listeria
Meat
title Effect of different dry aging temperatures on Listeria innocua as surrogate for Listeria monocytogenes
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