DRIED ALPHA-TYPE WHITE BRAN FOR PREPARATION OF JAPANESE SAKE, AND ITS PREPARATION

摘要

PURPOSE:To prepare dried alpha-type white bran preservable for a long period and utilizable as a substitute for polished rice in the preparation of Japanese sake, by impregnating white bran with an alkaline aqueous solution, steaming the bran, and quickly drying the product. CONSTITUTION:100kg of white bran is sprinkled with 5-25kg of an aqueous solution of a harmless alkaline additive for food such as ammonium carbonate, sodium carbonate, etc. to effect the impregnation of the solution. The obtained white bran having wet and crumbling texture is steamed, and immediately washed with water by immersion or spraying to remove the proteins, amino acids and the alkaline additives. The steamed and washed white bran is dried without delay at 60-100 deg.C until the water-content reaches =10%.