Effect of a non-lethal High Pressure Homogenization treatment on the in vivo response of probiotic lactobacilli

► Non-lethal HPH treatments can increase some in vivo probiotic characteristics. ► Non-lethal HPH treatments modified the interaction of lactobacilli with the small intestine. ► HPH-treated cells induced a higher IgA response compared to untreated cells. ► Results of HPH-treatments were strain- and feeding period-dependent.