食品科学

• 基础研究 • 上一篇    下一篇

荞麦淀粉及其抗性淀粉的颗粒结构

周一鸣1,2,李保国1,崔琳琳3,周小理2,*,陈 越2   

  1. 1.上海理工大学食品科学与工程研究所,上海 200093;2.上海应用技术学院香料香精技术与工程学院,上海 201418;
    3. 上海商学院旅游与食品学院,上海 200235
  • 出版日期:2013-12-15 发布日期:2014-01-03
  • 通讯作者: 周小理
  • 基金资助:

    国家自然科学基金项目(31071527);国家现代农业(燕麦荞麦)产业技术体系建设专项(CARS-08-D-2-5)

Granular Structure of Buckwheat Starch and Resistant Starch

ZHOU Yi-ming1,2,LI Bao-guo1,CUI Lin-lin3,ZHOU Xiao-li2,*,CHEN Yue2   

  1. 1. Institute of Food Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
    2. College of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China;
    3. College of Tourism and Food Science, Shanghai Business School, Shanghai 200235, China
  • Online:2013-12-15 Published:2014-01-03
  • Contact: ZHOU Xiao-li

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、甜荞)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。

关键词: 荞麦, 淀粉, 抗性淀粉, 颗粒结构, 结晶度

Abstract:

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.

Key words: buckwheat, starch, resistance starch, granular structure, crystallinity

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