Updated About content Print Article Share Article
views updated

niacytin The bound forms of the vitamin niacin, found in cereals. Complexes of niacin with polysaccharides and peptides or glycopeptides; not hydrolysed by intestinal enzymes, so biologically unavailable, but can be liberated by acid or alkaline hydrolysis or by baking the cereal, especially with an alkaline baking powder.