橡子与玉米、木薯的淀粉成分物理性质比较  

Comparison on Physical Properties of Acorn Starch with Corn Starch and Cassava Starch

作　　者：程荷芳[1] 卫民[1] 蒋剑春[1] 张宁[1] 陈育如[2] 杨静[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所生物质化学利用国家工程实验室国家林业局林产化学工程重点开放性实验室江苏省生物质能源与材料重点实验室,江苏南京210042 [2]南京师范大学生命科学学院,江苏南京210046

出　　处：《林产化学与工业》2009年第B10期183-186,共4页Chemistry and Industry of Forest Products

基　　金：国家林业局948创新重点项目(2006-4-C06)

摘　　要：通过对橡子淀粉与广泛用于制取燃料乙醇的玉米淀粉、木薯淀粉的形态大小、晶体结构、糊化特性等物理性质的比较分析,得出橡子淀粉颗粒呈椭圆形,粒径较玉米淀粉、木薯淀粉小;晶体结构属C型,而玉米淀粉、木薯淀粉属于典型的A型晶体结构;糊化温度高于玉米淀粉和木薯淀粉,总体糊化特性与玉米淀粉相似。Particle shape and size, crystal structure and paste property of acorn starch were compared with those of corn starch and cassava starch which are commonly used as raw materials for fuel ethanol production. Results showed that acorn starch is of oval-shape, its particle size is smaller than the sizes of corn starch and cassava starch. Its crystalline structure is of C type, while corn starch and cassava starch are of typical A crystal structure. The pasting temperature is higher than those of corn starch and cassava starch. The overall paste property of acorn starch is similar to corn starch.

关 键 词：橡子淀粉 玉米淀粉 木薯淀粉 物理性质 

分 类 号：TQ351[化学工程]