Adhesion and invasion of Listeria monocytogenes and interaction with Lactobacillus rhamnosus GG after habituation on fresh-cut pear

Iglesias Valenzuela, María Belén; Viñas Almenar, Inmaculada; Colás Medà, Pilar; Collazo Cordero, Cyrelys; Serrano Casasola, José Carlos Enrique; Abadias i Sero, Mª Isabel

doi:https://doi.org/10.1016/j.jff.2017.05.011

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Issue date

2017-07

Author

Iglesias Valenzuela, María Belén

Viñas Almenar, Inmaculada

Colás Medà, Pilar

Collazo Cordero, Cyrelys

Serrano Casasola, José Carlos Enrique

Abadias i Sero, Mª Isabel

Abstract

Several foods are carriers of probiotic bacteria. Most species of the genus Lactobacillus are probiotics and common inhabitants of the human gastrointestinal tract. It is known that they contribute to the health of gastrointestinal tract, but at the same time certain strains can be antagonistic against

foodborne pathogens. In this study, we evaluated the effect of Lactobacillus rhamnosus GG on the ability of a strain of Listeria monocytogenes serovar 4b to survive passage through the gastrointestinal tract, and its adhesion and invasion into Caco-2 cells when it was previously habituated on fresh-cut pear stored at 10 °C for 7 days. At the end of the storage, L. rhamnosus GG caused a reduction in the survival of L. monocytogenes in the gastrointestinal tract, and adhesion and invasion into Caco-2 cells. Moreover, it showed an antagonistic activity against L. monocytogenes.

URI

http://hdl.handle.net/10459.1/59977

DOI

https://doi.org/10.1016/j.jff.2017.05.011

Is part of

Journal of Functional Foods, 2017, vol. 34, p. 453-460