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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| Format: | Article |
| Language: | English |
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PAGEPress Publications
2015-03-01
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| Series: | Italian Journal of Food Safety |
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| Online Access: | http://www.pagepressjournals.org/index.php/ijfs/article/view/4780 |
| _version_ | 1818299248495558656 |
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| author | Francesco Casalinuovo Teresa Gazzotti Paola Rippa Lucia Ciambrone Rosanna Musarella Elena Pratticò |
| author_facet | Francesco Casalinuovo Teresa Gazzotti Paola Rippa Lucia Ciambrone Rosanna Musarella Elena Pratticò |
| author_sort | Francesco Casalinuovo |
| collection | DOAJ |
| 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 <em>Enterobacteriaceae</em>, sulphite-reducing anaerobes, <em>Salmonella</em> spp., <em>Bacillus cereus</em>, <em>Escherichia coli</em>, <em>Staphylococcus aureus</em>, 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 (<em>Staphylococcus warneri</em>, <em>Staphylococcus lentus</em>,<em> Streptococcus mitis</em>, <em>Enterococcus faecalis</em>, <em>Leuconostoc mesenteroides</em>), Gram-negative bacteria (<em>Sphingomonas paucimobilis</em>, <em>Acinetobacter iwoffii</em>, <em>Rhizobium radiobacter</em>), spore-forming bacteria (<em>Bacillus vallismortis</em>), while the fungal species was represented by <em>Penicillium</em> spp., <em>Rhizopus</em> spp., <em>Rhodotorula</em> spp. and <em>Alternaria</em> 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. |
| first_indexed | 2024-12-13T04:48:12Z |
| format | Article |
| id | doaj.art-5f2469f03c8447fd9a5c3b0aeabbc844 |
| institution | Directory Open Access Journal |
| issn | 2239-7132 |
| language | English |
| last_indexed | 2024-12-13T04:48:12Z |
| publishDate | 2015-03-01 |
| publisher | PAGEPress Publications |
| record_format | Article |
| series | Italian Journal of Food Safety |
| spelling | doaj.art-5f2469f03c8447fd9a5c3b0aeabbc8442022-12-21T23:59:05ZengPAGEPress PublicationsItalian Journal of Food Safety2239-71322015-03-014110.4081/ijfs.2015.47804245Microbiological stability of canned tuna produced in Italy and in non-European countriesFrancesco Casalinuovo0Teresa Gazzotti1Paola Rippa2Lucia Ciambrone3Rosanna Musarella4Elena Pratticò5Institute for Experimental Veterinary Medicine of Southern Italy, CatanzaroDepartment of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia (BO)Institute for Experimental Veterinary Medicine of Southern Italy, CatanzaroInstitute for Experimental Veterinary Medicine of Southern Italy, CatanzaroInstitute for Experimental Veterinary Medicine of Southern Italy, CatanzaroInstitute for Experimental Veterinary Medicine of Southern Italy, CatanzaroThe 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 <em>Enterobacteriaceae</em>, sulphite-reducing anaerobes, <em>Salmonella</em> spp., <em>Bacillus cereus</em>, <em>Escherichia coli</em>, <em>Staphylococcus aureus</em>, 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 (<em>Staphylococcus warneri</em>, <em>Staphylococcus lentus</em>,<em> Streptococcus mitis</em>, <em>Enterococcus faecalis</em>, <em>Leuconostoc mesenteroides</em>), Gram-negative bacteria (<em>Sphingomonas paucimobilis</em>, <em>Acinetobacter iwoffii</em>, <em>Rhizobium radiobacter</em>), spore-forming bacteria (<em>Bacillus vallismortis</em>), while the fungal species was represented by <em>Penicillium</em> spp., <em>Rhizopus</em> spp., <em>Rhodotorula</em> spp. and <em>Alternaria</em> 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.http://www.pagepressjournals.org/index.php/ijfs/article/view/4780Canned food, Canned tuna, Food safety, Food technology |
| spellingShingle | Francesco Casalinuovo Teresa Gazzotti Paola Rippa Lucia Ciambrone Rosanna Musarella Elena Pratticò Microbiological stability of canned tuna produced in Italy and in non-European countries Italian Journal of Food Safety Canned food, Canned tuna, Food safety, Food technology |
| 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 | Canned food, Canned tuna, Food safety, Food technology |
| url | http://www.pagepressjournals.org/index.php/ijfs/article/view/4780 |
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