METHOD OF PRODUCING FROZEN COMPOSITION COMPRISING PROTEIN, AND METHOD OF PREVENTING DENATURATION BY FREEZING OF FROZEN COMPOSITION COMPRISING PROTEIN

摘要

PROBLEM TO BE SOLVED: To provide a method of producing a frozen composition comprising a protein, with its sulfur odor decreased and its denaturation by freezing suppressed by using hydrolyzed albumen of a decreased sulfur odor, and a method of preventing the denaturation by freezing of a frozen composition comprising a protein.SOLUTION: A method of producing a frozen composition comprising a protein is characterized by adding hydrolyzed albumen to a composition comprising a protein and freezing the same, which hydrolyzed albumen is produced by a pretreatment step of causing denaturation of albumen by heat-treating a diluted liquid of albumen diluted with 0.4 to 3 parts of water relative to one part of liquid albumen under a condition of pH of 9 to 12 and a temperature of 55 to 90°C and by a step of hydrolyzing the denatured albumin using protease.