that catalyzes the hydrolysis of -1,4-glycoside bonds and subsequent intramolecular (cyclization) and intermolecular transglycosylation (disproportionation and coupling) reactionof -1,4-glucane.This enzyme being amylolytic in natureis the only one capable of converting starch into a mixture of non-reducing sugars designated as cyclodextrins, besides linear sugars and dextrins.Cyclodextrins, the main products of the CGTase catalysis reaction, are cyclic oligosaccharides made up by d-(+)-glucopyranose units linked by -1,4 linkages.These compounds have wide industrial applications due to their capability to form water-soluble inclusion complexes with several substances; this property modifies physico-chemical proprieties of encapsulated host-molecules