当前位置: 首页 > 文章 > 荞麦淀粉及其抗性淀粉的颗粒结构荞麦淀粉及其抗性淀粉的颗粒结构 食品科学 2013,34 (23) 25-27
Position: Home > Articles > Granular Structure of Buckwheat Starch and Resistant Starch FOOD SCIENCE 2013,34 (23) 25-27

荞麦淀粉及其抗性淀粉的颗粒结构荞麦淀粉及其抗性淀粉的颗粒结构

作  者:
周一鸣;李保国;崔琳琳;周小理;陈越
单  位:
上海理工大学食品科学与工程研究所
关键词:
荞麦;淀粉;抗性淀粉;颗粒结构;结晶度
摘  要:
采用激光粒度仪、扫描电镜、X射线衍射仪对荞麦(苦荞、甜荞)淀粉及其抗性淀粉的颗粒粒径分布范围、颗粒大小、晶体结构等特性进行分析.结果表明:荞麦(苦荞、甜养)淀粉颗粒形状均呈不规则的多面体球型,结晶类型与其他谷物淀粉相似,为典型的A型,粒径大小为7-8μm,苦荞淀粉结晶度为34.95%,甜荞淀粉结晶度为26.92%.荞麦抗性淀粉颗粒呈无定型,粒径为150μm,非结晶型,颗粒为玻璃体.
译  名:
Granular Structure of Buckwheat Starch and Resistant Starch
关键词:
buckwheat%starch%resistance starch%granular structure%crystallinity
摘  要:
In the present study, some physical characteristics of buckwheat starch and resistant buckwheat starch such as particle size and crystal properties were explored. The results showed that the buckwheat starch granules were irregular polyhedrons or spheres in shape with diameters ranging from 7 to 8 μm. Its crystal type was typically type A, and the crystallinity was 34.95% for tatary buckwheat starch and 26.92% for common buckwheat starch. The resistance buckwheat starch granules showed undefined shapes with diameter of 150 μm and were amorphous.

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