Preparation method of potato dietary fiber using potato by-product

摘要

The present invention relates to a method of preparing a high-purity potato dietary fiber using potato by-products. More particularly, the present invention relates to a method of preparing a high-purity potato dietary fiber whose total dietary fiber content is remarkably increased by converting the potato by-products obtained from a process of producing potato starch from potatoes into resistant starch by phosphorylation crosslinking, the potato dietary fiber being used as a raw material for foods serving as dietary fiber sources.