Holloway W D, Tasman-Jones C, Bell E
Am J Clin Nutr. 1980 Feb;33(2):260-3. doi: 10.1093/ajcn/33.2.260.
The digestion of hemicellulose in humans was investigated with subjects with an ileostomy and subjects with healthy small and large bowel on a fixed diet of known fiber content. It was shown that an average of 65% of the hemicelluloses were digested by women ileostomy subjects and 83% by men ileostomy subjects and 97% in the intact women subjects and 95% in the intact men subjects. The monosaccharide composition of the hemicelluloses in the diet, small bowel excreta and feces, suggest that an arabinoxylan hemicellulose from cereals, is not digested in the small bowel and only partly digested in the large bowel. This study suggests that it is the arabinoxylans from cereals that are important components of dietary fiber.
针对回肠造口术患者以及小肠和大肠健康且饮食中纤维含量固定已知的受试者，对人体半纤维素的消化情况进行了研究。结果表明，回肠造口术女性受试者平均消化了65%的半纤维素，男性受试者为83%；完整女性受试者消化了97%，完整男性受试者消化了95%。饮食、小肠排泄物和粪便中半纤维素的单糖组成表明，谷物中的阿拉伯木聚糖半纤维素在小肠中未被消化，仅在大肠中部分被消化。这项研究表明，谷物中的阿拉伯木聚糖是膳食纤维的重要组成部分。
