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Applied and Environmental Microbiology, July 2006, p. 5113-5117, Vol. 72, No. 7
0099-2240/06/$08.00+0     doi:10.1128/AEM.02950-05
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Survival of Yogurt Bacteria in the Human Gut

Marina Elli,1* Maria Luisa Callegari,2 Susanna Ferrari,2 Elena Bessi,1 Daniela Cattivelli,1 Sara Soldi,1 Lorenzo Morelli,1 Nathalie Goupil Feuillerat,3 and Jean-Michel Antoine3

AAT-Advanced Analytical Technologies S.r.l., 29100 Piacenza, Italy,1 Centro Ricerche Biotecnologiche, 26100 Cremona, Italy,2 Danone Vitapole, Nutrivaleur, 91767 Palaiseau Cedex, France3

Received 14 December 2005/ Accepted 15 April 2006

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.

* Corresponding author. Mailing address: AAT-Advanced Analytical Technologies S.r.l., Spin-off of the Catholic University of Piacenza, Via Emilia Parmense, 84, 29100 Piacenza, Italy. Phone: 39-335-7988122. Fax: 39-0523-599246. E-mail: marina.elli{at}unicatt.it.

Applied and Environmental Microbiology, July 2006, p. 5113-5117, Vol. 72, No. 7
0099-2240/06/$08.00+0     doi:10.1128/AEM.02950-05
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



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