Survival of yogurt bacteria in the human gut

Marina Elli; Maria Luisa Callegari; Susanna Ferrari; Elena Bessi; Daniela Cattivelli; Sara Soldi; Lorenzo Morelli; Nathalie Goupil Feuillerat; Jean-Michel Antoine

doi:10.1128/AEM.02950-05

Survival of yogurt bacteria in the human gut

Appl Environ Microbiol. 2006 Jul;72(7):5113-7. doi: 10.1128/AEM.02950-05.

Authors

Marina Elli¹, Maria Luisa Callegari, Susanna Ferrari, Elena Bessi, Daniela Cattivelli, Sara Soldi, Lorenzo Morelli, Nathalie Goupil Feuillerat, Jean-Michel Antoine

Affiliation

¹ AAT-Advanced Analytical Technologies S.r.l., Spin-off of the Catholic University of Piacenza, Via Emilia Parmense, 84, 29100 Piacenza, Italy. marina.elli@unicatt.it

Abstract

Whether Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus can be recovered after passage through the human gut was tested by feeding 20 healthy volunteers commercial yogurt. Yogurt bacteria were found in human feces, suggesting that they can survive transit in the gastrointestinal tract.

Publication types

Clinical Trial

MeSH terms

Adult
Colony Count, Microbial
Electrophoresis, Gel, Pulsed-Field
Feces / microbiology
Female
Gastrointestinal Tract / microbiology*
Humans
Lactobacillus delbrueckii / genetics
Lactobacillus delbrueckii / growth & development*
Lactobacillus delbrueckii / isolation & purification
Male
Polymerase Chain Reaction / methods
Probiotics*
Streptococcus thermophilus / genetics
Streptococcus thermophilus / growth & development*
Streptococcus thermophilus / isolation & purification
Yogurt / microbiology*