Method to prepare a mixture and food products deriving therefrom

A method to prepare a mixture to make cereal-based food products natively containing gluten, said method comprising:

• a step comprising the mixing of cereal flour containing gluten with at least one proteolytic enzyme supplied in a proteolytic solution, in order to at least partly remove from said gluten, by means of enzymatic proteolysis, antigenic epitopes of gluten proteins that trigger pathologies immune-mediated by gluten, obtaining a hydrolyzed flour solution;
• a step comprising centrifuging said hydrolyzed flour solution in order to remove a liquid phase supernatant containing reaction residues and obtain a hydrolyzed flour pellet, which constitutes a hydrolyzed flour composition;
• a step comprising the preparation of a mixture obtained by mixing said hydrolyzed flour pellet, with a transglutaminase enzyme supplied in powder and with a liquid source of lysine, said liquid source of lysine constituting all and the sole source of liquid necessary to obtain said mixture, thereby at least partly deactivating, by means of transamidation with amino acid residues of said lysine, the remaining antigenic epitopes of gluten proteins.