摘要
简介了扫描隧道显微镜(STM)、原子力显微镜(AFM)和扫描近场显微术(SNOM)的基本原理并比较了其优缺点,重点阐述了STM、AFM和SNOM在食品中多糖、淀粉、蛋白质和脂质等大分子微观形貌和纳米结构的表征和操纵方面的研究发现和成果,表明高清晰度、高分辨率的STM、AFM和SNOM非常适于食品中大分子在系统保持原生态或者不同状态条件下进行纳米级的结构研究。不断发展的扫描探针显微技术在食品工业中具有巨大发展潜力和广泛应用前景。
The principles, advantages and disadvantages of scanning tunnel microscope （STM）, atomic force microscopy （AFM） and scanning near-field optical microscope （SNOM） were introduced and compared. The current applications of STM, AFM and SNOM to imaging and manipulating nanostructure of biomacromolecules, such as polysaccharides, starch, proteins and lipids were focused in food systems. These show that STM, AFM and SNOM provide a basis for examining the macromolecular structure of foods under different conditions, and that they have a great potential prospect in the mapping of structure of food system.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2009年第8期280-287,共8页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学基金资助项目(30600420)
国家大学生创新计划项目(08102483)
关键词
食品
纳米结构
扫描探针技术
应用
生物大分子
food products
nanostructures
scanning probe microscopy
applications
biomacromolecule
