Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus survive gastrointestinal transit of healthy volunteers consuming yogurt.
作者： Denis D.G. Mater , Laurent Bretigny , Olivier Firmesse , Maria-Jose Flores , Agnès Mogenet
DOI: 10.1016/J.FEMSLE.2005.07.006
关键词:
摘要: To date, there is significant controversy as to the survival of yogurt bacteria (namely, Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus) after passage through human gastrointestinal tract. Survival both bacterial species in feces was investigated by culture on selective media. Out 39 samples recovered from 13 healthy subjects over a 12-day period fresh intake, 32 37 contained viable S. (median value 6.3 x 10(4) CFU g(-1) feces) L. 7.2 10(4)CFU feces), respectively. The results present study indicate that substantial numbers can survive transit.
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