结果（1）每日摄食8，12g葡苷聚糖可使大便中乙酸盐、丁酸盐和异丁酸盐含量明显升高；

• Results (1) significant increase of fecal acetate, butyrate and isobutyrate were found in both groups of 8 and 12 g/d polydextrose intake;