Fleming L L, Floch M H
Am J Gastroenterol. 1986 Jul;81(7):507-11.
Most dietary carbohydrates are digested and absorbed in the small bowel. However, fiber carbohydrate and other carbohydrates can be metabolized by the normal flora of the colon. The substrate for bacterial fermentation includes compounds for which small bowel digestive and absorptive mechanisms may, or may not, exist and soluble and some insoluble fiber. Products of fermentation include gases and volatile fatty acids which may be absorbed or nourish the colon mucosa. Total body nutrition and metabolism may also be affected by the products digested and absorbed in the colon.
大多数膳食碳水化合物在小肠中被消化和吸收。然而，纤维碳水化合物和其他碳水化合物可被结肠的正常菌群代谢。细菌发酵的底物包括可能存在或不存在小肠消化和吸收机制的化合物以及可溶性和一些不溶性纤维。发酵产物包括气体和挥发性脂肪酸，它们可能被吸收或滋养结肠黏膜。结肠中消化和吸收的产物也可能影响全身营养和代谢。
