摘要
以橡子全粉、脱单宁后的橡子全粉(橡子全粉DT)和从橡子粉中提取的淀粉为研究对象,利用RVA黏度仪分析了橡子全粉和橡子淀粉的糊化性质。RVA图谱表明,3种物料的糊化温度大小关系为橡子全粉DT>橡子全粉>橡子淀粉,而它们的峰值黏度、谷值黏度、破损值、最终黏度及回生值大小关系却均为橡子淀粉>橡子全粉DT>橡子全粉。利用体外消化模型对橡子淀粉进行消化实验结果显示,随着橡子全粉中单宁的脱除,淀粉的可消化率随之增加,表现出快速消化淀粉(RDS)含量在增加。
A new kind of low loss ZrTi2O6 filled polytetrafluoroethylene （PTFE） microwave composite substrates were fabricated through the hot-pressing process. The microwave dielectric properties of the composites were measured using dielectric resonator method （18-12 GHz）. The relative permittivity （εr） and loss tangent （tanδ） of the composites increase with an increase of the volume fraction of ZrTi2O6 ceramic （0-46%）. The experimental dielectric constants of the composites match well with the theoretically predicted values using Lichtenecker model. As the volume fraction of ZrTi2O6 ceramic increases, the thermal expansion coefficient and the temperature coefficient of dielectric constant decrease. The ZrTi2O6/PTFE composites exhibit a dielectric constant of 7.42 with a loss tangent of 0.0022 （10 GHz） at an optimum filler volume fraction of 46% ZrTi2O6.
出处
《食品科技》
CAS
北大核心
2013年第12期204-208,共5页
Food Science and Technology
关键词
橡子淀粉
糊化性质
消化性
marine power
emissions reduction
technology
analysis
作者简介
万洋灵（1992--），女，安徽人，硕士研究生，研究方向为食品工程。
通讯作者
