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Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life

We tested the growth potential of Listeria monocytogenes on six RTE fruit products at low (4°C at the factory followed by 8°C retail/home storage) and abusive (4°C followed by 12°C) storage temperatures. Sliced coconut and fresh cut cantaloupe, as well as a fruit mix containing diced pineapple, cant...

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Detalles Bibliográficos
Autores principales: Ziegler, Matthias, Rüegg, Simon, Stephan, Roger, Guldimann, Claudia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PAGEPress Publications, Pavia, Italy 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6240924/
https://www.ncbi.nlm.nih.gov/pubmed/30538961
http://dx.doi.org/10.4081/ijfs.2018.7581
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author Ziegler, Matthias
Rüegg, Simon
Stephan, Roger
Guldimann, Claudia
author_facet Ziegler, Matthias
Rüegg, Simon
Stephan, Roger
Guldimann, Claudia
author_sort Ziegler, Matthias
collection PubMed
description We tested the growth potential of Listeria monocytogenes on six RTE fruit products at low (4°C at the factory followed by 8°C retail/home storage) and abusive (4°C followed by 12°C) storage temperatures. Sliced coconut and fresh cut cantaloupe, as well as a fruit mix containing diced pineapple, cantaloupe, apples and grapes supported the growth of L. monocytogenes with a growth potential δ>0.5 log CFU/g over six days. Mangoes, a mix of diced kiwi, cantaloupe and pineapple as well as a mix of diced pineapple, mango, grapefruit, kiwi and pomegranate did not support a growth potential that exceeded 0.5 log CFU/g over six days. The growth potential of L. monocytogenes correlated significantly with the pH; no product with a pH below 4 showed a significant growth potential of L. monocytogenes. Time after inoculation was also a significant predictor of the growth potential, while the fruit type and storage temperature were not.
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spelling pubmed-62409242018-12-11 Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life Ziegler, Matthias Rüegg, Simon Stephan, Roger Guldimann, Claudia Ital J Food Saf Article We tested the growth potential of Listeria monocytogenes on six RTE fruit products at low (4°C at the factory followed by 8°C retail/home storage) and abusive (4°C followed by 12°C) storage temperatures. Sliced coconut and fresh cut cantaloupe, as well as a fruit mix containing diced pineapple, cantaloupe, apples and grapes supported the growth of L. monocytogenes with a growth potential δ>0.5 log CFU/g over six days. Mangoes, a mix of diced kiwi, cantaloupe and pineapple as well as a mix of diced pineapple, mango, grapefruit, kiwi and pomegranate did not support a growth potential that exceeded 0.5 log CFU/g over six days. The growth potential of L. monocytogenes correlated significantly with the pH; no product with a pH below 4 showed a significant growth potential of L. monocytogenes. Time after inoculation was also a significant predictor of the growth potential, while the fruit type and storage temperature were not. PAGEPress Publications, Pavia, Italy 2018-10-08 /pmc/articles/PMC6240924/ /pubmed/30538961 http://dx.doi.org/10.4081/ijfs.2018.7581 Text en ©Copyright M. Ziegler et al., 2018 http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Ziegler, Matthias
Rüegg, Simon
Stephan, Roger
Guldimann, Claudia
Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life
title Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life
title_full Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life
title_fullStr Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life
title_full_unstemmed Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life
title_short Growth potential of Listeria monocytogenes in six different RTE fruit products: impact of food matrix, storage temperature and shelf life
title_sort growth potential of listeria monocytogenes in six different rte fruit products: impact of food matrix, storage temperature and shelf life
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6240924/
https://www.ncbi.nlm.nih.gov/pubmed/30538961
http://dx.doi.org/10.4081/ijfs.2018.7581
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