Viable starter culture, beta-galactosidase activity, and lactose in duodenum after yogurt ingestion in lactase-deficient humans.

@article{Pochart1989ViableSC,
  title={Viable starter culture, beta-galactosidase activity, and lactose in duodenum after yogurt ingestion in lactase-deficient humans.},
  author={Philippe Pochart and Olivier Dewit and Jehan Francois Desjeux and Pierre Bourlioux},
  journal={The American journal of clinical nutrition},
  year={1989},
  volume={49 5},
  pages={828-31}
}
Ten lactose malabsorbers were intubated and given fresh or heated yogurt to which polyethylene-glycol (PEG) and spores of Bacillus stearothermophilus (SBS) had been added as internal standards. In duodenal samples taken after fresh yogurt ingestion, viable starter culture was detected for 60 min in 6 of 7 subjects and the ratio of microbial beta-galactosidase activity to SBS remained similar during this period to its value in the preingested yogurt. In the two groups ingesting fresh and heated… CONTINUE READING
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