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Microbiological Stability of Canned Tuna Produced in Italy and in Non-European Countries

The results of a study on the microbiological stability of canned tuna produced by Italian companies and similar canned products manufactured in countries outside Europe are reported herein. The study involved 38 samples of canned tuna of various brands, of which 14 were produced by companies outsid...

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Autores principales: Casalinuovo, Francesco, Gazzotti, Teresa, Rippa, Paola, Ciambrone, Lucia, Musarella, Rosanna, Pratticò, Elena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PAGEPress Publications, Pavia, Italy 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5076627/
https://www.ncbi.nlm.nih.gov/pubmed/27800383
http://dx.doi.org/10.4081/ijfs.2015.4780
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author Casalinuovo, Francesco
Gazzotti, Teresa
Rippa, Paola
Ciambrone, Lucia
Musarella, Rosanna
Pratticò, Elena
author_facet Casalinuovo, Francesco
Gazzotti, Teresa
Rippa, Paola
Ciambrone, Lucia
Musarella, Rosanna
Pratticò, Elena
author_sort Casalinuovo, Francesco
collection PubMed
description The results of a study on the microbiological stability of canned tuna produced by Italian companies and similar canned products manufactured in countries outside Europe are reported herein. The study involved 38 samples of canned tuna of various brands, of which 14 were produced by companies outside Europe and 24 by Italian companies. Qualitative and quantitative microbiological tests were conducted for the following parameters: bacterial colony counts at 30°C, total coliforms, total Enterobacteriaceae, sulphite-reducing anaerobes, Salmonella spp., Bacillus cereus, Escherichia coli, Staphylococcus aureus, yeasts and molds. Bacterial loads and mold contamination were respectivelyin found in 8/14 (57%) samples from outside EU and 7/24 (29%) Italian samples. The bacterial flora was represented by Gram-positive bacteria (Staphylococcus warneri, Staphylococcus lentus, Streptococcus mitis, Enterococcus faecalis, Leuconostoc mesenteroides), Gram-negative bacteria (Sphingomonas paucimobilis, Acinetobacter iwoffii, Rhizobium radiobacter), spore-forming bacteria (Bacillus vallismortis), while the fungal species was represented by Penicillium spp., Rhizopus spp., Rhodotorula spp. and Alternaria spp. Excluding anomalies in the thermal treatment process of products and any contamination after treatment, the contaminations encountered in both cases were most likely due to insufficient production quality standards and the quality of the raw material used. These results may require a redefinition of the concept of commercial stability as hitherto stated.
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spelling pubmed-50766272016-10-31 Microbiological Stability of Canned Tuna Produced in Italy and in Non-European Countries Casalinuovo, Francesco Gazzotti, Teresa Rippa, Paola Ciambrone, Lucia Musarella, Rosanna Pratticò, Elena Ital J Food Saf Article The results of a study on the microbiological stability of canned tuna produced by Italian companies and similar canned products manufactured in countries outside Europe are reported herein. The study involved 38 samples of canned tuna of various brands, of which 14 were produced by companies outside Europe and 24 by Italian companies. Qualitative and quantitative microbiological tests were conducted for the following parameters: bacterial colony counts at 30°C, total coliforms, total Enterobacteriaceae, sulphite-reducing anaerobes, Salmonella spp., Bacillus cereus, Escherichia coli, Staphylococcus aureus, yeasts and molds. Bacterial loads and mold contamination were respectivelyin found in 8/14 (57%) samples from outside EU and 7/24 (29%) Italian samples. The bacterial flora was represented by Gram-positive bacteria (Staphylococcus warneri, Staphylococcus lentus, Streptococcus mitis, Enterococcus faecalis, Leuconostoc mesenteroides), Gram-negative bacteria (Sphingomonas paucimobilis, Acinetobacter iwoffii, Rhizobium radiobacter), spore-forming bacteria (Bacillus vallismortis), while the fungal species was represented by Penicillium spp., Rhizopus spp., Rhodotorula spp. and Alternaria spp. Excluding anomalies in the thermal treatment process of products and any contamination after treatment, the contaminations encountered in both cases were most likely due to insufficient production quality standards and the quality of the raw material used. These results may require a redefinition of the concept of commercial stability as hitherto stated. PAGEPress Publications, Pavia, Italy 2015-03-19 /pmc/articles/PMC5076627/ /pubmed/27800383 http://dx.doi.org/10.4081/ijfs.2015.4780 Text en ©Copyright F. Casalinuovo 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
Casalinuovo, Francesco
Gazzotti, Teresa
Rippa, Paola
Ciambrone, Lucia
Musarella, Rosanna
Pratticò, Elena
Microbiological Stability of Canned Tuna Produced in Italy and in Non-European Countries
title Microbiological Stability of Canned Tuna Produced in Italy and in Non-European Countries
title_full Microbiological Stability of Canned Tuna Produced in Italy and in Non-European Countries
title_fullStr Microbiological Stability of Canned Tuna Produced in Italy and in Non-European Countries
title_full_unstemmed Microbiological Stability of Canned Tuna Produced in Italy and in Non-European Countries
title_short Microbiological Stability of Canned Tuna Produced in Italy and in Non-European Countries
title_sort microbiological stability of canned tuna produced in italy and in non-european countries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5076627/
https://www.ncbi.nlm.nih.gov/pubmed/27800383
http://dx.doi.org/10.4081/ijfs.2015.4780
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