L. reuteri I5007 showed strong adhesion to porcine intestinal mucus and several cell lines such as
Caco-2 cells, IPEC-J2 cells and IEC-6 cells [49,50]. Other LAB strains also have the capacity to
adhere to mucus and the intestinal epithelial cells [50–52]. Mechanisms of adherence to an epithelial
surface involve receptor-specific binding and charge as well as hydrophobic interaction