Multiple approaches for the study of the effects of bifidobacteria on intestinal health: Influence of food technology

BURNS, P.; HRDÝ, J.; ALARD, J.; ZACARÍAS, M.F.; LAVARI, L.; REINHEIMER, J.; POT, B.; VINDEROLA, G.; GRANGETTE, C.

París

Jornada; Journées franco-argentines de coopération scientifique pour l?innovation; 2014

Intestinal health requires the balanced coexistence of eukaryotic cells with the gut microbiota. Probiotic lactobacilli and bifidobacteria are increasingly recognized as a way to prevent and/or treat intestinal disorders. Commercial probiotic bacteria are delivered mainly as frozen or freeze-dried cultures. However, spray drying is a lower cost technology that could be used for the production of probiotic cultures. The aim of this study was to compare the effect of fresh and spray dried bifidobacteria cultures on their ability to prevent experimental colitis and protect against Salmonella Typhimurium infection in mice.Both Bifidobacteria strains studied were able to rescue mice from colitis and to exhibit similar anti-inflammatory potential given either after fresh culture or spray drying. Similar effects were also observed against Salmonella infection. These results indicate that spray drying arises as a promising technology for the development of dehydrated cultures as a lower cost alternative to freeze-drying.