Outer shell, inner blocklets, and granule architecture of potato starch

被引:45
作者
Huang, Junrong [1 ]
Wei, Ningguo [1 ]
Li, Hongliang [1 ]
Liu, Shuxing [1 ]
Yang, Daqing [1 ]
机构
[1] Shaanxi Univ Sci & Technol, Coll Life Sci & Engn, Xian 710021, Shaanxi Provinc, Peoples R China
基金
中国国家自然科学基金;
关键词
Potato starch; Outer shell; Blocklets; Granule architecture; SEM; ATOMIC-FORCE MICROSCOPY; INTERNAL STRUCTURE; PEA STARCH; VARIETIES; MUTANTS; SITES; IMAGE; WAXY; AFM;
D O I
10.1016/j.carbpol.2013.12.064
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Potato starch was heated in distilled water and acetic acid solution (pH= 1.5), respectively, then washed with anhydrous ethanol and dried. After cooked in water with certain program, high-resolution scanning electron micrographs (SEM) of broken granules showed isolated outer shells. After treatment with acetic acid, SEM images of dissilient granules exhibited outer shells with randomly assembled spherical inner blocklets. A refined blocklet model was proposed for potato starch granule, the smaller blocklets were compacted densely to form the stiffer outer shell, and the larger blocklets were packed loosely to form the inner shells. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:355 / 358
页数:4
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