GRANULAR GELATINIZED STARCH AND PREPARATION THEREOF

摘要

PURPOSE:To obtain the titled granular material resistant to floating on a fermentation mixture, exhibiting digesting property similar to steamed rice and directly addable to a fermentation mixture without using rice-steaming process. CONSTITUTION:Starch or a starchy raw material is supplied to an extruder in such a manner as to get a water-content of 16-25wt.% The above raw materials are kneaded, compressed and heated in the extruder and extruded at an extrusion material temperature of 80-110 deg.C and extrusion pressure of 20-50kg/cm<2>. The extrudate is cut into pellets, dried to a water-content of 8-16wt.%, gelatinized and granulated to obtain the objective product having a gelatinization degree of >=70% and a water-absorption of 200-350%.