Abstract
The mixtures of fresh fecal samples from 5 volunteers and refined soybean oligosaccharides (SOR) containing 76% stachyose, 22% raffinose and 2% sucrose, were anaerobically incubated for 3hr at 37°C. After incubation, measurements were taken for pH, compositions of short chain fatty acids (SCFA), and putrefactive products including phenol, p-cresol, indole, skatole and ammonia. 1) In the samples mixed with SOR, the amount of saccharides-derived SCFA (acetic acid and butyric acid) were significantly higher than those in the control sample and the pH value was significantly lower than that in the control sample. 2) In contrast, the amount of certain putrefactive products including indole and ammonia was significantly reduced in the sample mixed with SOR compared with that in the control sample.
