The dual-enzyme method in sugar industry is a process of hydrolyzing starch into glucose using amylase and dextranase enzyme as catalysts. The starch hydrolysis is carried out in two steps: the first step is to liquefy the liquefied liquid with a high temperature resistant a-amylase; the second step is to further hydrolyze the liquefied liquid into glucose with a dextranase enzyme, so that the DE value reaches more than 98%.

The production process includes many steps: pulping measurement, saccharification + compound dextranase enzyme, enzyme decolorization + activated carbon, plate and frame filtration → old activated carbon discard, evaporation and concentration - glucose syrup, cooling crystallization, massecuite separation, sieving, inspection, weighing and packaging ,Product storage.

The following main process include Pretreatment for protein, Clarification and Crystallization.

Because the fluids of saccharification contains protein, that normally use the wide-gap plate heat exchanger for heating and cooling process of saccharification.