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Effect of bacterial interactions on the spoilage of cold-smoked salmon ArchiMer
Joffraud, Jean-jacques; Cardinal, Mireille; Cornet, Josiane; Chasles, Jean-sebastien; Leon, Sandrine; Gigout, Frederique; Leroi, Francoise.
Cold-smoked salmon is a lightly preserved fish product in which a mixed microbial flora develops during storage and where the interactive behaviour of micro-organisms may contribute to their growth and spoilage activity. The aim of this study was to assess the effect of the bacterial interactions between the main species contaminating the cold-smoked salmon on bacterial growth, chemical and sensory changes, and spoilage. First, Carnobacterium piscicola, Photobacterium phosphoreum, Lactobacillus sakei, Vibrio sp., Brochothrix thermosphacta and Serratia liquefaciens-like were inoculated as pure cultures on sterile cold-smoked salmon. All bacterial species grew well; Vibrio sp. was the fastest and L. sakei strains developed very rapidly as well with a high...
Tipo: Text Palavras-chave: Spoilage; Interaction; Microbial flora; Cold smoked salmon.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1727.pdf
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Selection and evaluation of seafood-borne psychrotrophic lactic acid bacteria as inhibitors of pathogenic and spoilage bacteria ArchiMer
Matamoros, Sebastien; Pilet, Marie-france; Gigout, Frederique; Prevost, Herve; Leroi, Francoise.
In this study, inhibitory psychrotrophic lactic acid bacteria were isolated and investigated for future use in biopreservation of seafood products. Screening of 5575 colonies isolated from various seafood products resulted in the selection of 132 colonies presenting inhibitory properties. Among them, 52 isolates had characteristics of LAB and showed growth at 15 °C but not at 30 °C. The inhibition spectrum of these 52 isolates against 14 target strains (Gram-positive and -negative) showed inhibition of typical seafood spoiling and pathogenic bacteria and enabled the formation of seven interesting clusters. Sequencing of the 16S rRNA gene of a representative isolate from each cluster identified three Leuconostoc gelidum, two Lactococcus piscium, one...
Tipo: Text Palavras-chave: Carnobacterium alterfunditum; Lactobacillus fuchuensis; Leuconostoc gelidum; Lactococcus piscium; Psychrotrophic; Inhibition; Seafood; Lactic acid bacteria.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6472.pdf
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