Does yogurt enriched with Bifidobacterium longum affect colonic microbiology and fecal metabolites in healthy subjects?

Autor: Gotthard Ruckdeschel, Heinrich Kasper, Hans-Peter Bartram, Wolfgang Scheppach, Stephanie Gerlach, Elisabeth Kelber
Rok vydání: 1994
Předmět:
Zdroj: The American Journal of Clinical Nutrition. 59:428-432
ISSN: 0002-9165
DOI: 10.1093/ajcn/59.2.428
Popis: Diet-induced changes in the colonic micmoflora seem to play a mole in colon carcinogenesis. In this study the effects of a yogurt (500 mL/d for 3 wk) enriched with Bifido- bacterium /ongum and 5 g lactulose/L (A) on the fecal bacterial flora and various risk indexes for colon camcinogenesis were tested in 12 healthy volunteers and compared with a conventional yogurt (B). Increased excretion of bifidobactemia (P < 0.017) was found after consumption of both yogurts compared with the pre- study periods, whereas cultural counts of aenobes and anacrobes were not different. Breath-hydrogen exhalation was elevated and mouth-to-cecum transit time was accelerated in the period of yo- gurt A ingestion (P < 0.05) whereas no differences were found for oro-anal mean transit time, stool weight and pH, and fecal concentrations of short-chain fatty acids, bile acids, and neutral stemols. The results generally indicate great stability of the human fecal flora to this kind of dietary intervention. AmJ C/in Nutr 1994;59:428-32.
Databáze: OpenAIRE