PRODUCTION OF PARTIAL DECOMPOSITION PRODUCT OF MILK PROTEIN

摘要

PURPOSE:To obtain a matter useful as a food material, having no bitterness, by partially decomposing casein with an immobilized enzyme. CONSTITUTION:Casein is partially decomposed by the use of an immobilized enzyme obtained by immobilizing a proteolytic enzyme which is stable in a neutrals or alkaline range and has improved thermostability. An immobilized enzyme which is obtained by blending a proteolytic enzyme which especially effectively acts at pH 6-9 and at 50-60 deg.C and hardly has peptidase activity with glutaraldehyde to give a solution, reacting the solution with a carrier consisting of alumina or chitosan to immobilize the enzyme and treating the enzyme with sodium boron hydride is preferably used as the immobilized enzyme.