Sweet potato's starch is generally made up of between 80 to 90% carbohydrates of the dry weight of sweet potato roots.
The sweet potato yields an important starch, which is used as a food starch in noodles etc. and technically for sizing textiles and papers, for the manufacture of adhesives and in laundries.
Sweet potato starch granules vary from 4 to 40 microns with 19 micron in average. The amylose content is 19% - 25%.