食品科学 ›› 2020, Vol. 41 ›› Issue (13): 267-275.doi: 10.7506/spkx1002-6630-20190626-330

• 专题论述 • 上一篇    下一篇

直链淀粉和支链淀粉分子结构研究进展

韩文芳,林亲录,赵思明,李江涛,牛桂红   

  1. (1.稻谷及副产物深加工国家工程实验室,中南林业科技大学食品科学与工程学院,湖南 长沙 410004;2.华中农业大学食品科学技术学院,湖北 武汉 430070)
  • 出版日期:2020-07-15 发布日期:2020-07-29
  • 基金资助:
    国家自然科学基金青年科学基金项目(31801497);湖南省自然科学基金青年基金项目(2018JJ3873); 中南林业科技大学引进人才科研启动基金项目(2016YJ060;2016YJ061); 中南林业科技大学青年科学研究基金项目(QJ2018009B)

Recent Advances in Molecular Structures of Amylose and Amylopectin

HAN Wenfang, LIN Qinlu, ZHAO Siming, LI Jiangtao, NIU Guihong   

  1. (1. National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China;2. College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China)
  • Online:2020-07-15 Published:2020-07-29

摘要: 表面等离子体共振(surface plasmon resonance,SPR)传感器是利用物理光学现象实现对待测物进行快速检测的一种超灵敏检测仪器。近年来因其无需标记、灵敏度高、检测速度快、试剂用量少和可实时监测等优点在食品安全检测领域得到了广泛的关注。本文主要介绍SPR传感器的原理及其在食品安全检测中的研究现状,重点展示了SPR生物传感器近年来在食品安全检测方面的应用,主要包括在农兽药残留、致病菌、重金属以及生物毒素等方面的应用现状,阐述了SPR传感器在食品安全检测领域的优势及发展趋势。

关键词: 表面等离子体共振, 传感器, 食品安全检测

Abstract: Starch is the principal energy reserve in plants and the macroscopic component of many foods, and functions as an important raw material for the food industry. It is generally accepted that starch comprises highly branched amylopectins (AP) and linear amyloses (AM). The molecular structures of AM and AP in starch granules are of crucial importance for understanding the relationship among starch biosynthesis, structure and functional properties. In this paper, the content, structure and its contribution to the structure of starch granules of AM are elucidated along with the cluster structure model, the building block backbone model and structural hierarchy of amylopectin branched chain structure. We hope that this review will provide useful information for future research on the molecular structures of amylose and amylopectin in starch.

Key words: amylose, amylopectin, molecular structure, cluster model, building block backbone model

中图分类号: