Abstract
In a previous study, we observed that administration of oligosaccharide containing theanderose (TR-32) selectively promoted the growth of intestinal bifidobacteria. In the present study, we examined the effect of TR-32 administration on fecal pH, short-chain fatty acid (SCFA) concentration and putrefaction products. During the intake of TR-32, the fecal pH decreased according to the concentration of SCFA produced by intestinal bacteria. On intestinal putrefaction products, fecal ammonia was decreased significantly. A tendency for decreased fecal putrefaction products (phenol, p-cresol, skatole, 4-ethylphenol) were observed during the administration of TR-32. These results indicated that an increase in the ratio of the number ofBifidobacteriumto the total number of intestinal bacteria by the administration of TR-32 caused a decrease in the concentration of intestinal putrefaction products (ammonia, phenol, p-cresol, skatole, 4-ethylphenol).
