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Bioprotective Effect of Lactococcus piscium CNCM I-4031 Against Listeria monocytogenes Growth and Virulence ArchiMer
Saraoui, Taous; Leroi, Francoise; Chevalier, Frederique; Cappelier, Jean-michel; Passerini, Delphine; Pilet, Marie-france.
Listeria monocytogenes is a Gram-positive pathogen occurring in many refrigerated ready-to-eat foods. It is responsible for foodborne listeriosis, a rare but severe disease with a high mortality rate (20–30%). Lactococcus piscium CNCM I-4031 has the capacity to prevent the growth of L. monocytogenes in contaminated peeled and cooked shrimp and in a chemically defined medium using a cell-to-cell contact-dependent mechanism. To characterize this inhibition further, the effect of L. piscium was tested on a collection of 42 L. monocytogenes strains. All strains were inhibited but had different sensitivities. The effect of the initial concentration of the protective and the target bacteria revealed that the inhibition always occurred when L. piscium had reached...
Tipo: Text Palavras-chave: Biopreservation; Lactococcus piscium; Listeria monocytogenes; Co-culture; Cell ratio; Scanning electron microscopy; Virulence.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00449/56065/57588.pdf
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