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Listeria Spp. and Listeria Monocytogenes Contamination in Ready-To-Eat Sandwiches Collected from Vending Machines

Ready-to-eat (RTE) food is characterised by a long shelf-life at refrigerated temperature and can be consumed as such, without any treatment. The aim of the work was to evaluate the presence of Listeria spp. and Listeria monocytogenes in RTEs collected from refrigerated vending machines placed in ho...

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Autores principales: Cossu, Francesca, Spanu, Carlo, Deidda, Silvia, Mura, Erica, Casti, Daniele, Pala, Carlo, Lamon, Sonia, Spanu, Vincenzo, Ibba, Michela, Marrocu, Elena, Scarano, Christian, Piana, Andrea, De Santis, Enrico Pietro Luigi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PAGEPress Publications, Pavia, Italy 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5076732/
https://www.ncbi.nlm.nih.gov/pubmed/27800439
http://dx.doi.org/10.4081/ijfs.2016.5500
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author Cossu, Francesca
Spanu, Carlo
Deidda, Silvia
Mura, Erica
Casti, Daniele
Pala, Carlo
Lamon, Sonia
Spanu, Vincenzo
Ibba, Michela
Marrocu, Elena
Scarano, Christian
Piana, Andrea
De Santis, Enrico Pietro Luigi
author_facet Cossu, Francesca
Spanu, Carlo
Deidda, Silvia
Mura, Erica
Casti, Daniele
Pala, Carlo
Lamon, Sonia
Spanu, Vincenzo
Ibba, Michela
Marrocu, Elena
Scarano, Christian
Piana, Andrea
De Santis, Enrico Pietro Luigi
author_sort Cossu, Francesca
collection PubMed
description Ready-to-eat (RTE) food is characterised by a long shelf-life at refrigerated temperature and can be consumed as such, without any treatment. The aim of the work was to evaluate the presence of Listeria spp. and Listeria monocytogenes in RTEs collected from refrigerated vending machines placed in hospital environment and accessible to the hospitalised patients. In 4 different sampling, 55 RTEs were collected from vending machines of six hospitals located in different areas of Sardinia region. All the samples were characterised by similar manufacturing process, such as the use of modified atmosphere packaging and belonged to 5 different producers. Listeria spp. was not countable using the enumeration method in all of the analysed samples. Using the detection method, Listeria spp. was recovered from 9 sandwich samples. Interestingly, 3 of these samples (5.5%) made by the manufacturer, were positive for L. monocytogenes contamination. The risk related to the L. monocytogenes presence in RTEs proportionally increases when food is introduced in susceptible environments, such as hospitals and consumed by susceptible people. Although the RTEs analysed showed values that complied with the European microbiological criteria for foodstuffs, the availability of these products in a susceptible environment should be carefully checked. Therefore, in order to limit the possible exposition to L. monocytogenes, more information on the risk related to RTE consumption should be provided to the hospitalised patients.
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spelling pubmed-50767322016-10-31 Listeria Spp. and Listeria Monocytogenes Contamination in Ready-To-Eat Sandwiches Collected from Vending Machines Cossu, Francesca Spanu, Carlo Deidda, Silvia Mura, Erica Casti, Daniele Pala, Carlo Lamon, Sonia Spanu, Vincenzo Ibba, Michela Marrocu, Elena Scarano, Christian Piana, Andrea De Santis, Enrico Pietro Luigi Ital J Food Saf Article Ready-to-eat (RTE) food is characterised by a long shelf-life at refrigerated temperature and can be consumed as such, without any treatment. The aim of the work was to evaluate the presence of Listeria spp. and Listeria monocytogenes in RTEs collected from refrigerated vending machines placed in hospital environment and accessible to the hospitalised patients. In 4 different sampling, 55 RTEs were collected from vending machines of six hospitals located in different areas of Sardinia region. All the samples were characterised by similar manufacturing process, such as the use of modified atmosphere packaging and belonged to 5 different producers. Listeria spp. was not countable using the enumeration method in all of the analysed samples. Using the detection method, Listeria spp. was recovered from 9 sandwich samples. Interestingly, 3 of these samples (5.5%) made by the manufacturer, were positive for L. monocytogenes contamination. The risk related to the L. monocytogenes presence in RTEs proportionally increases when food is introduced in susceptible environments, such as hospitals and consumed by susceptible people. Although the RTEs analysed showed values that complied with the European microbiological criteria for foodstuffs, the availability of these products in a susceptible environment should be carefully checked. Therefore, in order to limit the possible exposition to L. monocytogenes, more information on the risk related to RTE consumption should be provided to the hospitalised patients. PAGEPress Publications, Pavia, Italy 2016-05-11 /pmc/articles/PMC5076732/ /pubmed/27800439 http://dx.doi.org/10.4081/ijfs.2016.5500 Text en ©Copyright F. Cossu et al. http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Cossu, Francesca
Spanu, Carlo
Deidda, Silvia
Mura, Erica
Casti, Daniele
Pala, Carlo
Lamon, Sonia
Spanu, Vincenzo
Ibba, Michela
Marrocu, Elena
Scarano, Christian
Piana, Andrea
De Santis, Enrico Pietro Luigi
Listeria Spp. and Listeria Monocytogenes Contamination in Ready-To-Eat Sandwiches Collected from Vending Machines
title Listeria Spp. and Listeria Monocytogenes Contamination in Ready-To-Eat Sandwiches Collected from Vending Machines
title_full Listeria Spp. and Listeria Monocytogenes Contamination in Ready-To-Eat Sandwiches Collected from Vending Machines
title_fullStr Listeria Spp. and Listeria Monocytogenes Contamination in Ready-To-Eat Sandwiches Collected from Vending Machines
title_full_unstemmed Listeria Spp. and Listeria Monocytogenes Contamination in Ready-To-Eat Sandwiches Collected from Vending Machines
title_short Listeria Spp. and Listeria Monocytogenes Contamination in Ready-To-Eat Sandwiches Collected from Vending Machines
title_sort listeria spp. and listeria monocytogenes contamination in ready-to-eat sandwiches collected from vending machines
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5076732/
https://www.ncbi.nlm.nih.gov/pubmed/27800439
http://dx.doi.org/10.4081/ijfs.2016.5500
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