Journal
JOURNAL OF FUNCTIONAL FOODS
Volume 34, Issue -, Pages 453-460Publisher
ELSEVIER
DOI: 10.1016/j.jff.2017.05.011
Keywords
Fresh-cut pear; Gastrointestinal simulation; L. monocytogenes virulence; Biopreservation
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Funding
- Secretaria d'Universitats i Recerca del Departament d'Economia i Coneixement de la Generalitat de Catalunya (AGAUR fellowship) [2015-FI-B100156]
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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 degrees 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. (C) 2017 Elsevier Ltd. All rights reserved.
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