X射线衍射在淀粉颗粒结晶度研究中的应用

本文介绍了X 射线衍射技术测定淀粉颗粒结晶度的几种不同方法以及各自的应用状况，分析比较了这几种方法的测定原理、优缺点，以及各自测定马铃薯淀粉、木薯淀粉、玉米淀粉、大米淀粉、小麦淀粉、糯米淀粉等常见淀粉的结晶度大小；最后，阐述了X 射线衍射测定淀粉颗粒结晶度的方法所存在的问题及可能的发展方向。

A Review of Application of X ray Diffraction in Crystal Structure Determination of Starch Granules

Crystallinity of starch granules is important for properties of starch crystals. Current main X ray diffraction methods including Herman method, Wakelin method and Zhang Binshang’s method for the determination of crystal structure are introduced in this paper. The current application status quo, basic principles, advantages and disadvantages of these methods are discussed here. Meanwhile, crystallinity of several common starches such as potato starch, cassava starch, corn starch, rice starch, wheat starch and waxy rice starch determined by these methods is compared. Finally, the prospect development trends for the determination of crystallinity for starch granules are proposed based on the analysis of current problems.