淀粉颗粒聚集态结构研究进展  

Review on Aggregation State Structures of Starch Granule

作　　者：张斌[1] 黄强[1] 罗发兴[1] 王凯[1] 

机构地区：[1]华南理工大学轻工与食品学院,广东广州510640

出　　处：《高分子材料科学与工程》2011年第4期167-170,共4页Polymer Materials Science & Engineering

基　　金：广东省高校优秀青年创新人才培养计划项目资助(x2qsN9100250);华南理工大学中央高校基本科研业务费资助项目(2009ZM0058;2009ZM0028)

摘　　要：详述了淀粉颗粒中直链淀粉和支链淀粉的分子结构和分布位置,结晶结构及聚集态结构,以及颗粒的晶体结构与形状之间的关系等最新研究成果,同时对淀粉颗粒聚集态结构的研究方向提出展望。认为直链淀粉是分散在支链淀粉分子中且更集中于颗粒表面;颗粒表面比颗粒内部的支链淀粉分子具有更多的短支链。A型多晶淀粉比B型多晶淀粉具有更为松散的内部结构,因而后者对酸和酶具有更强的抗性。In this paper,the current understanding on molecular structures,crystalline structures and relative locations of amylose and amylopectin molecules in the starch granule were reviewed.Amylose is interspersed among amylopectin and is more concentrated at the periphery than at the core of a starch granule.Amylopectin at the periphery of a starch granule consists of shorter branch chains than that at the inner part of the granule.The A-type polymorphic starch granules have loosely packed internal structures,whereas the B-type polymorphic starch granules have solid internal structures and are more resistant to acid or enzyme hydrolysis.

关 键 词：淀粉颗粒 支链淀粉 聚集态结构 

分 类 号：O631.13[理学—高分子化学]