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Description
Distarch adipate is a highly utilized modified starch valued for its texturizing stability. This study aims to investigate how specific physical and chemical processing variations alter its rheological profile, providing essential data for optimizing industrial-scale starch modification. Starch modification was performed in a controlled 600 mL reactor system integrated with automated stirring, temperature, pH regulation, and precise dosing. The effects of shifting parameters—specifically acetic anhydride and adipic acid concentrations, modifier preparation time/temperature, water and sulfate levels, and various mixing intervals—were comprehensively evaluated. All rheological changes were characterized using a Brabender amylograph. The resulting Brabender amylograms demonstrated that adjustments in modifier concentration and reaction temperature directly dictate the peak viscosity and gelatinization onset. The results indicate that achieving high-performance distarch adipate requires a careful balance of all components and process conditions, as a shift in a single parameter significantly alters the overall rheological behavior. The optimized starch matrix must exhibit excellent texture, acid and shear resistance, and high water-holding capacity. Mixing time and sulfate presence primarily influenced the breakdown and setback viscosity profiles. In conclusion, this work presents a systematic overview of how chemical dosing and mechanical handling inside a reactor can be adjusted to tailor the visco-elastic performance of distarch adipate. These insights allow for precise customization of starch properties for specific food and industrial formulations requiring high stability.
Keywords: distarch adipate, rheology, Brabender amylograph, water-holding capacity, process optimization.