采用正交设计法 ,研究了麒麟菜高活性膳食纤维的提取工艺条件 ,筛选出麒麟菜碱处理和漂白的最佳工艺条件 ,提取出麒麟菜高活性膳食纤维 ,并进行人体的功能性试验。结果表明 ,麒麟菜高活性膳食纤维的产率达 32 .4 1% ,颜色较白 ,膳食纤维干基含量 w达 82 .57% ,钙含量 w2 .13% ,磷含量w0 .0 13% ,膨胀力为 2 4 .5m L / g,持水力为 14 50 % ;麒麟菜膳食纤维的功能性优于小麦麸皮膳食纤维 ,对人体便秘具有良好的疗效 The orthogonal design method was used to study the extraction process conditions of Eucheuma high activity dietary fiber. The optimum conditions for the treatment and bleaching of Eucheuma were screened out. The high activity dietary fiber of Eucheuma was extracted and the human functional test was carried out. The results showed that the yield of highly active dietary fiber of Eucheuma was 32.41%, the color was white, the content of dry fiber of dietary fiber was 82.57%, the content of calcium was 2.13%, the content of phosphorus was 0.13% Expansion force of 24.5 m L / g, water holding capacity of 1450%; Eucheuma dietary fiber functional wheat bran than fiber, human constipation has a good effect