Protein solution for use in forming protein film for e.g. food products, contains modified protein, which is modified by cleaving disulfide bond(s) originally present in the protein by sulfitolysis to obtain free sulfhydryl groups

摘要

A protein solution for use in protein film formation, has a pH of = 7 and contains modified protein, which is modified by cleaving at least one disulfide bond originally present in the protein by sulfitolysis to obtain free sulfhydryl groups. These free sulfhydryl groups are able to cause an interchange reaction to form disulfide bonds between the proteins. Independent claims are also included for: (1) a protein-based film comprising a protein network formed by disulfide bonds between the proteins, where the protein network is formed by treating protein with modified protein in a solution having a pH of = 7; (2) a food product being coated with or containing substances coated with the above film; (3) baby's milk formula containing the above film as emulsion; (4) pharmaceutical product containing at least one therapeutically active agent and being coated with the above film; (5) a container coated with the above film; and (6) method for preparing a protein-based film comprising providing the inventive protein solution, and forming the solution into the protein-based film.