Pregelatinized starch is a physically modified starch that has been treated to break its hydrogen bonds and create a porous structure, allowing it to dissolve easily in cold water. Also known as α-starch, it is widely used in industries such as construction, feed, food, and paper. The main raw materials are starches like corn, potato, and wheat. Pregelatinized starch improves fluidity and compressibility compared to traditional starch.
Production Methods of Pregelatinized Starch:
- Roller Method: Wheat starch is mixed with deionized water, heated, and dried on a drum. This method offers continuous production and low energy consumption but results in broken particles with limited stability and elasticity.
- Extrusion Method: Starch is gelatinized under high temperature and pressure, then rapidly dried by extrusion. This method is cost-effective but produces starch with low viscosity and elasticity.
- Spray Method: Starch milk is sprayed into a drying tower using high-temperature airflow. This method produces hollow spherical particles but is energy-intensive and complex due to the need for high atomization.
Celotech’s Prestar® pregelatinized starch is widely used in industries like construction, improving the operability and anti-sag performance of putty. It dissolves quickly at room temperature, forming a uniform colloid, making it useful in thickeners and adhesives. Celotech’s product combines high performance with a focus on sustainability, supporting modern green industry standards.
