ABSTRACT: In order to improve the deep processing and drying technology of grass carp and other freshwater fish, the microwave drying equipment and hot air drying characteristics of grass carp fillets were studied, and the best drying model was determined.
The results show that when the microwave power increases from 200 W to 800 W, the effective water diffusion coefficient increases from 0.995 4*10-9 m2/s to 2.344 3*10-9 m2/s, and when the hot air drying temperature rises from 60 C to 80 C, the effective water diffusion coefficient increases from 4.001 4*10-10 m2/s to 7.291*10-10 m2/s, but the value is still lower than that of microwave drying. Diffusion coefficient value. By comparing correlation coefficient R2, residue square sum RSS and chi square 2, Page model has the highest fitting degree for microwave drying of grass carp fillets, and Two Term model has the highest fitting degree for hot air drying of grass carp fillets.
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