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Adhesion Properties of Probiotic Lactobacillus Strains Isolated from Tunisian Sheep and Goat Milk

Abstract : Four hundred strains isolated from Tunisian sheep and goat raw milks were initially screened for their ability to survive the GastroIntestinal Tract (GIT). Forty-three among the four hundred bacteria were resistant to pepsin, pH 2, pancreatin and bile salts at 0.3%, even after 5 hours of incubation. Identification using 16S rRNA gene sequencing was established and we obtained as a species Lactobacillus plantarum (29 isolates from sheep milk and 11 from goat milk) and Lactobacillus pentosus (2 isolates from sheep milk and 1 from goat milk). We showed the ability for auto-aggregation and/or hydrophobicity properties. Finally, both M63 and C78 strains showed an important level of adhesion to three intestinal epithelial cells Caco-2 TC7, HT29-MTX, and HT29-CL.16E. Taken together, these properties allow the lactobacilli strains to be considered promising beneficial strains for developing functional foods for consumers.
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https://hal.univ-lorraine.fr/hal-03611850
Contributor : Matthieu Delannoy Connect in order to contact the contributor
Submitted on : Thursday, March 17, 2022 - 1:52:21 PM
Last modification on : Friday, May 13, 2022 - 10:27:06 AM

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I. Mahmoudi, O. Ben Moussa, T. Khaldi, M. Kebouchi, Claire Soligot-Hognon, et al.. Adhesion Properties of Probiotic Lactobacillus Strains Isolated from Tunisian Sheep and Goat Milk. Journal of Agricultural Science and Technology (JAST), University of Tarbiat Modares, 2019, 21 (3), pp.587-600. ⟨hal-03611850⟩

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