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1 Service d'Hépato-Gastroentérologie, Hôpital Charles-Nicolle, 1 rue de Germont, 76031 Rouen Cedex, France
2 Laboratoire de Bactériologie-Parasitologie, Hôtel-Dieu, 51 rue de Lecat, 76031 Rouen Cedex, France
3 Service de Médecine Nucléaire, Centre Hospitalier Universitaire, 54500 Vandoeuvre les Nancy, France
4 B.S.N., 7 rue de Téhéran, 75381 Paris Cedex 08, France
Two Bifidobacterium strains contained in two different fermented milks behave very differently when exposed to an in vitro simulated gastric environment. One strain survives very well during at least 90 min (< 107/g), but the second strain studied is much less resistant. These in vitro results, with slight differences, were confirmed by an in vivo study in humans. The assessment of the gastric emptying rate of these products allows an estimation of the amount of Bifidobacterium that may pass into the small intestine.
Key Words: Bifidobacterium fermented milks gastric transit
Submitted on March 2, 1990
Accepted on July 23, 1990
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