Nonuniform microwave heating causes localized over-heating in frozen food products, lowering the quality of the thawed products. The solid-state microwave system has the potential to enhance heating performance as it provides flexible control over microwave parameters, e.g., frequency and power. The real-time collected microwave power reflection enables dynamic parameter control. This study developed two dynamic solid-state defrosting strategies: 1) selective frequency shifting strategy that only selectively shifted frequencies with high efficiency, 2) adaptive power control strategy that adapted power input with simultaneously orderly shifted frequencies. Results showed that the adaptive power control strategy had a better defrosting performance on frozen mashed potato and pork chop samples. Besides, with the adaptive power control strategy, the rotation of the turntable did not pose a significant improvement on the standard deviation of the temperature distribution in the defrosted products when compared to the stationary heating, which might be due to the minimized movement...

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