Abstract
In a previous study, we observed that the growth of intestinal Bifidobacterium was selectively premoted by administration of 8g galactooligosaccharide per day. To determine the dosage of galactooligosaccharide (CUP OLIGO P, COP) necessary for the proliferation of fecal Bifidobacterium, fecal microflora, fecal moisture and pH were studied in eleven healty adult men (aged 25-60 years) given COP containing 2g galactooligosaccharide daily for 20 days. Total bacterial counts and percentages of Bifidebacterium spp. (p<0.01) were significantly increased during COP intake, whereas percentages of Bacteroidaceae were decreased.
