Starch hydrolysate prepn. rich in maltose - by hydrolysis of cereal enzyme extract, using alpha-amylase

摘要

In prepn. of a starch hydrolysate rich in maltose, a native cereal enzyme extract, rich in protein and minerals, is hydrolysed in admixture with a starch suspension in a ratio of 1:2-10 wt.% and a dry matter content of 5-42 wt., with moderate stirring and for 0.3-4 h, with addn. of an alpha-amylase and utilisation of the natural cereal beta-amylase present in the medium. Hydrolysis is at 45-67 deg.C and pH 4.5-6.8 to 45-50 dextrose equiv. units. USE/ADVANTAGE - A 1-stage process avoids starch liquefaction, and gives a shorter reaction time. 85-92 wt.% of the carbohydrate is maltose, 7-13% is maltotriose and 1-3% is glucose. The hydrolysate is an additive for food compsns. and a material for biotechnological processes, and prodn. of maltose syrup.