The aims of this study were to i) screen the effect of buckwheat flour and oat bran as prebiotic on the production of probiotic fiber enriched fermented milks, by investigating the kinetics of acidification of buckwheat flour- and oat bran-supplemented milk fermented by L. rhamnosus IMC 501®, L. paracasei IMC 502® and SYNBIO®, ii) evaluate the effects of buckwheat flour and oat bran on probiotic bacteria survival, pH and sensory characteristics of the fermented fiber-enriched milk products, over a 28-day storage period, iii) develop a new synbiotic product by using the best combination of probiotics and prebiotics to promoting better growth and survival and be acceptable to the consumers with high concentration of probiotics. This new product was used to conduct a human feeding trial to validate the fermented milk as a carrier for transporting bacterial
cells into the human gastrointestinal tract