多种淀粉颗粒的扫描电镜下的形态分析

[目的]比较分析多种淀粉颗粒的扫描电镜下的形态.[方法]利用扫描电镜对部分天然保健功能类食用淀粉进行观察,根据不同种类淀粉在扫描电镜下特征的差别,分别对每一种淀粉颗粒在扫描电镜下的形态特征进行归纳,并进行比较分析.[结果]观察发现,几种市面上宣称有保健功能类的食用淀粉如百合淀粉、葛根淀粉、桄榔淀粉、绿豆淀粉及马蹄淀粉,它们的形态分别为扁平三角形、粘连多面体型、梨形、肾形及卵圆形,与价格较低廉的日常食用淀粉如红薯淀粉、马铃薯淀粉、木薯淀粉、豌豆淀粉、小麦淀粉和玉米淀粉的形态及大小仍是有所区别,在扫描电镜下观察能较直观地反映出差别.[结论]研究可为天然保健功能类食用淀粉的鉴别提供参考依据.

Morphology Analysis of a Variety of Starch Granules by Using Scanning Electron Microscope

[Objective] To compare and analyze morphology of a variety of starch granules by using scanning electron microscope.[Method] The morphology characteristics of edible starch with natural health care function were observed using scanning electron microscope.According to different characteristics,the morphology features of each type starch granule were summarized and analyzed.[Result] It was found that several kinds of edible starch on the market which were claimed to have health care function,such as lily starch,Radix Puerariae starch,Arenga pinnata starch,mung bean starch,water chestnut,the morphology of them are flat triangular polyhedral,adhesion,pear shaped,kidney shaped and oval respectively.The differences can be intuitively reflected under scanning electron microscope compared with daily edible starch,such as sweet potato starch,potato starch,cassava starch,pea starch,wheat starch,maize starch.[Conclusion] The study can provide reference basis for identification of edible starch with natural health care function.