amylopectin

am.y.lo.pec.tin

n.（名词）
The outer portion of a starch granule consisting of insoluble, highly branched polysaccharides of high molecular weight.
支链淀粉，淀粉粒纤维素：淀粉粒的外层部分，由不溶于水且高分支的高分子量多糖构成