| Literature DB >> 21839386 |
Alberto Lo Curto1, Iole Pitino, Giuseppina Mandalari, Jack Richard Dainty, Richard Martin Faulks, Martin Sean John Wickham.
Abstract
The aim of this study was to investigate survival of three commercial probiotic strains (Lactobacillus casei subsp. shirota, L. casei subsp. immunitas, Lactobacillus acidophilus subsp. johnsonii) in the human upper gastrointestinal (GI) tract using a dynamic gastric model (DGM) of digestion followed by incubation under duodenal conditions. Water and milk were used as food matrices and survival was evaluated in both logarithmic and stationary phase. The % of recovery in logarithmic phase ranged from 1.0% to 43.8% in water for all tested strains, and from 80.5% to 197% in milk. Higher survival was observed in stationary phase for all strains. L. acidophilus subsp. johnsonii showed the highest survival rate in both water (93.9%) and milk (202.4%). Lactic acid production was higher in stationary phase, L. casei subsp. shirota producing the highest concentration (98.2 mM) after in vitro gastric plus duodenal digestion.Entities:
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Year: 2011 PMID： 21839386 DOI： 10.1016/j.fm.2011.06.007
Source DB: PubMed Journal: Food Microbiol ISSN： 0740-0020 Impact factor: 5.516