Dielectric Properties of Hydrothermally Modified Potato, Corn, and Rice Starch

The effect of starch granule sizes, shapes, composition, and frequency on the dielectric properties (dielectric constant, loss factor, conductivity) native hydrothermally modified starches (potato, corn, rice starch) are investigated in this work. Dielectric determined from 5 Hz to GHz. exhibit lower than GHz due disruption polysaccharide’s molecular arrangement. potato shows highest factor (208.12 at 50 19.95 500 Hz) stable conductivity (~5.33 × 10−7 S/m larger continuous network structure after hydrothermal modification. largest difference constant (47.30%) (71.42%) between form range MHz–5 This is restriction dipole motions closely packed findings indicate that quality modification can be characterized by for assisting starch-based plastic production’s design.