Journal
FOOD MICROBIOLOGY
Volume 27, Issue 8, Pages 1121-1127Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fm.2010.07.019
Keywords
Gastrointestinal tract; Dynamic gastric model; Probiotic; Lactobacillus rhamnosus
Funding
- Biotechnology and Biological Research Sciences Council (BBSRC, UK)
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In the present study six probiotic Lactobacillus rhamnosus strains were investigated for their ability to survive in the human upper gastrointestinal tract through a dynamic gastric model of digestion. MRS broth was used as delivery vehicle and survival was investigated during in vitro gastric and gastric plus duodenal digestion. Results highlighted that all tested strains showed good survival rate during both gastric and duodenal digestion. In particular, three strains exhibited a great survival showing a recovery percentage in the range between 117 and 276%. In agreement with survival data, high lactic acid production was detected for all strains, confirming their metabolic activity during digestion. (C) 2010 Elsevier Ltd. All rights reserved.
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