Starch is a high-molecular carbohydrate composed of linear (amylose) and branched (amylopectin) chains of glucose residues. In water, at
increased temperatures, it undergoes gelatinisation followed by amylase-induced hydrolysis. Owing to this, it is completely digested in the gastrointestinal
tract of humans. Also raw starch of some plant species, e.g. cereals, is subject to complete but slow digestion. In addition, starch may
occur in the form incapable of enzymatic hydrolysis, referred to as “resistant starch