| Identification of lactic acid bacteria involved in the spoilage of pasteurized "foie gras" products. | |
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MedLine Citation:
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PMID: 20416816 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The spoiling microflora of a re-packaged French "foie gras" product was studied. A total of 54 isolates, originating from two different factories, were identified using phenotypical and molecular methods (partial 16S rDNA sequencing). Weissella viridescens was the main species detected in the products from factory 1 (64% of the isolates). These products had a low lactic acid concentration and were considered as non-spoiled. The microflora of factory 2 was dominated mainly by the genus Lactobacillus (95% of the isolates), and the high lactic acid concentration of these products was linked with a strong spoilage. Among the 30 Lactobacillus strains, three species were predominant: Lactobacillus sakei (nine isolates), Lactobacillus coryniformis (eight isolates) and Lactobacillus paraplantarum (five isolates). Challenge tests were performed to confirm the involvement of the Lactobacillus strains in the spoilage of the product. Sterile "foie gras" samples were inoculated with 14 LAB strains from the collection. The most acidifying strains belonged to the species L. sakei, Lactobacillus plantarum and L. paraplantarum. This confirmed the role of the strains from the Lactobacillus genus as the main spoilers of "foie gras" products and will be useful to design new quality protocols and extend the shelf-life of these products. |
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Authors:
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S Matamoros; S André; I Hue; H Prévost; M F Pilet |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-02-17 |
Journal Detail:
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Title: Meat science Volume: 85 ISSN: 1873-4138 ISO Abbreviation: Meat Sci. Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-05-07 Completed Date: 2010-11-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101160862 Medline TA: Meat Sci Country: England |
Other Details:
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Languages: eng Pagination: 467-71 Citation Subset: IM |
Copyright Information:
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Copyright 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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UMR INRA 1014 SECALIM, ONIRIS, Nantes, France. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Base Sequence DNA, Ribosomal Food Microbiology* Lactic Acid / analysis Lactobacillales / classification, genetics, isolation & purification Lactobacillus / classification, genetics, isolation & purification* Liver / microbiology* Meat Products / microbiology* Poultry RNA, Ribosomal, 16S |
| Chemical | |
Reg. No./Substance:
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0/DNA, Ribosomal; 0/RNA, Ribosomal, 16S; 50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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