Slavin J L, Marlett J A, Neilson M J
J Nutr. 1983 Nov;113(11):2353-9. doi: 10.1093/jn/113.11.2353.
The neutral monosaccharides in neutral detergent fiber (NDF) extracted from low and high cellulose diets and from feces excreted by seven women consuming the same diet were determined. In addition, apparent digestibilities of the NDF neutral monosaccharides during consumption of both diets were compared. Diets were of constant daily composition and differed only in that the high fiber diet contained 16 g/day of Solka Floc. NDF residues from food and feces were hydrolyzed by the Saeman procedure and the neutral saccharides measured by high performance liquid chromatography. More than 75% of the food NDF from both diets was glucose. Mean fecal NDF was 77% glucose during feeding of the low fiber diet, 89% glucose during the high fiber diet. Xylose was the next most common monosaccharide, accounting for 6-16% of the monosaccharides detected in food and fecal NDF. Concentrations of the other sugars, arabinose, cellobiose, mannose, galactose and rhamnose, ranged from 1 to 6%. Apparent digestibility of the sugars decreased significantly when Solka Floc was consumed: glucose from 85 to 48%; xylose from 76 to 57%; arabinose 89 to 73%; and mannose 86 to 43%. These data indicate that the monosaccharides in NDF from a representative low fiber diet are degraded extensively in the gut, and that adding Solka Floc to the diet decreases the digestibility of all fiber-derived monosaccharides.
测定了从低纤维素饮食和高纤维素饮食中提取的中性洗涤纤维（NDF）以及七名食用相同饮食的女性排泄粪便中的中性单糖。此外，还比较了两种饮食摄入期间NDF中性单糖的表观消化率。饮食的每日成分恒定，不同之处仅在于高纤维饮食含有16克/天的索尔卡纤维粉。食物和粪便中的NDF残留物通过塞曼法水解，中性糖通过高效液相色谱法测定。两种饮食中超过75%的食物NDF是葡萄糖。在低纤维饮食喂养期间，粪便NDF的平均葡萄糖含量为77%，在高纤维饮食喂养期间为89%。木糖是其次最常见的单糖，占食物和粪便NDF中检测到的单糖的6-16%。其他糖类，阿拉伯糖、纤维二糖、甘露糖、半乳糖和鼠李糖的浓度范围为1%至6%。食用索尔卡纤维粉时，糖类的表观消化率显著下降：葡萄糖从85%降至48%；木糖从76%降至57%；阿拉伯糖从89%降至73%；甘露糖从86%降至43%。这些数据表明，来自代表性低纤维饮食的NDF中的单糖在肠道中被广泛降解，并且在饮食中添加索尔卡纤维粉会降低所有纤维衍生单糖的消化率。
