Absrtact: Microwave drying method was used to dry corn reconstituted rice. Six factors, including material thickness, microwave drying equipment, microwave power, hot air speed, hot air temperature and hot air time, were selected to optimize the drying process by quadratic general rotary combination design method.
The results show that the optimum technological conditions are material thickness 6 m m, microwave time 6 min, microwave power 1800 W, hot air speed 1 m/s, hot air temperature 40 C and hot air time 15 min. Under these conditions, the drying rate was 0.57 kg/kg.min, the bursting waist rate was 5% and the sensory evaluation was 87. Microwave-hot air combined drying is suitable for the drying of corn reconstituted rice, which is a fast drying method with better product quality.
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