摘要
用扫描电镜研究12种大米淀粉颗粒的粒径,用旋转流变仪研究不同大米淀粉糊的流变学特性,并分析大米淀粉粒度分布与流变特性间的关系。结果表明,大米淀粉粒度分布符合罗森分布。大米淀粉糊呈假塑性流体的特性,黏度系数对温度有较大的依赖性。大米淀粉粒度分布与流变特性间的关系显著。
Granular diameter and rheological properties of rice starch from 12 kinds of rice were measured by scanning elec- tronic microscope and rotary rheometer, respectively. The relationship of rice starch between granularity distribution and theo- logical properties was studied by using mathematical model. Results showed that granularity distribution of rice starch meets Rosin-Rammler distribution. Rice starches paste was pseudoplastic, and the consistency coefficient depended on temperature greatly. The relationship of rice starch between granularity distribution and rheological properties was significant.
出处
《粮食与饲料工业》
CAS
北大核心
2012年第12期22-25,28,共5页
Cereal & Feed Industry
关键词
大米淀粉
粒度分布
流变学特性
rice starch
granularity distribution
rheology property
