食品科学2011，Vol.32Issue(13)：84-88,5.
高温高压挤出处理对玉米皮膳食纤维溶解特性及物性的影响
Effect of High-Temperature-High-Pressure Extrusion on Solubility and Physical Properties of Corn Spermoderm Dietary Fiber
摘要
Abstract
Water soluble dietary fiber（S-CDF）,water insoluble dietary fiber（I-CDF）（acid insoluble dietary fiber（ACI-CDF） and alkaline insoluble fiber（ALI-CDF）） were extracted from high-temperature-high-pressure-extruded corn spermoderm.Solubility and physical properties of each of these CDFs and mixtures at different ratios of S-CDF to I-CDF were analyzed before and after high-temperature-high-pressure extrusion.The results showed that extrusion at 165 ℃,a material-to-liquid ratio of 1：1.5 and a feed speed of 15 kg/h proved optimal.Under these extrusion conditions,the extraction yield of S-CDF was increased by 68.74%,the expansibility,water-holding capacity and solubility of S-CDF,I-CDF,ACI-CDF and ALI-CDF were distinctly increased.When expansibility,cation exchange capacity,water-holding capacity,oil-holding capacity and water-binding capacity were comprehensively considered,the optimal S-CDF to I-CDF ratio was 1：4.关键词
玉米皮/膳食纤维/溶解性/物性Key words
corn spermoderm/dietary fiber/solubility/physical properties分类
轻工纺织引用本文复制引用
王大为,郭雪飞,杨羿..高温高压挤出处理对玉米皮膳食纤维溶解特性及物性的影响[J].食品科学,2011,32(13):84-88,5.基金项目
“十一五”国家科技支撑计划项目 （）
