Amylopectin is a starch component with a high molecular weight and a branching shape.
It is composed of an alpha-glucose polymer that is linked linearly with (14) glycosidic linkages and (16) links that occur at intervals of 24 to 30 glucose subunits.
It is one of the two primary carbohydrate kinds present in starch (the other is amylose).
The outer layer of a starch granule that is composed of insoluble, highly branched polysaccharides with a high molecular weight.