高温下淀粉凝胶化颗粒的结构特征

Character of Starch Gelatinized Granule from Higher Temperature Drying Process

凝胶化作用是淀粉改性过程中存在的一种现象。采用红外光谱和X-射线衍射方法探讨了淀粉凝胶化颗粒的结构和结晶变化过程。结果表明,在淀粉的高温成型过程中,凝胶化颗粒化学结构没有发生明显的变化,结晶状态则趋于完全无定型化。

In the article, infrared spectrometry and X-ray scattering techniques have been used to study gelatinized starch granule, it reveals that the gelatinized starch granule is amorphous in molecular arrangement, and has no change in its chemical structure different from native starch granule. The gelling in the drying process of starch slurry appears a physical action.