Selection of psychotrophic bacteria active against spoilage and pathogenic micro-organisms relevant for seafood products

Type Book section
Date 2006
Language English
Author(s) Matamoros Sébastien1, 2, Pilet Marie-France1, Gigout Frédérique2, Prevost Hervé1, Leroi Françoise2
Affiliation(s) 1 : Laboratoire de Microbiologie Alimentaire et Industrielle, ENITIAA, Nantes, France
2 : Département de Sciences et Techniques Alimentaires Marines, IFREMER, Nantes, France
Book Seafood Research from Fish to Dish - Quality, Safety & Processing of Wild & Farmed Seafood
Keyword(s) biopreservation, seafood products, psychrophilic lactic acid bacteria, inhibition
Abstract In this study, 51 seafood products were screened to select psychrophilic inhibiting lactic acid bacteria. 5575 colonies were tested for inhibition against four target strains : Listeria monocytogenes, Staphylococcus xylosus, Pseudomonas sp. and Serratia liquefaciens. 456 colonies (8,2%) showed inhibition and 132 (28,9%) of them were picked up. 54 isolates growing at 15°C but not at 30°C were selected. Basic phenotypic characteristics (Gram, catalase and oxidase test) were then tested. Finally, 52 presumptive psychrophilic LAB strains were selected. The inhibition spectrum of these strains was enlarged to 14 spoiling or pathogenic target strains relevant for seafood products. The inhibition profiles were recorded, and clustering was made to separate eight distinct groups.
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Matamoros Sébastien, Pilet Marie-France, Gigout Frédérique, Prevost Hervé, Leroi Françoise (2006). Selection of psychotrophic bacteria active against spoilage and pathogenic micro-organisms relevant for seafood products. In Seafood Research from Fish to Dish - Quality, Safety & Processing of Wild & Farmed Seafood (Edited by J.B. Luten, C. Jacobsen, K. Bekaert, A. Sæbø, J. Oehlenschläger). https://archimer.ifremer.fr/doc/00002/11339/