In this study, a novel ultrasonic vacuum (USV) drying technique was used to shorten the drying time of
fish fillets. For this purpose, ultrasonic treatment and vacuum-drying were simultaneously performed to
dehydrate salmon and trout fillets at 55 C, 65 C, and 75 C. In addition, the USV technique was compared
with vacuum-drying and oven-drying techniques. The dehydration kinetics of the fillets was successfully
described by seven thin-layer drying models with R2 range between 0.944 and 1.000. Depending
on drying temperatures and fish species, the drying times could be shortened using the USV technique
between 7.4% and 27.4% compared with vacuum-drying. The highest effective moisture diffusivity was
determined in the fillets dried with the USV technique and they increased with increasing drying temperatures.
Ultrasonic treatment accelerated the vacuum drying process for the fillets; therefore, this technique
could be used to improve the efficiency of vacuum-drying for the fillets.
In this study, a novel ultrasonic vacuum (USV) drying technique was used to shorten the drying time offish fillets. For this purpose, ultrasonic treatment and vacuum-drying were simultaneously performed todehydrate salmon and trout fillets at 55 C, 65 C, and 75 C. In addition, the USV technique was comparedwith vacuum-drying and oven-drying techniques. The dehydration kinetics of the fillets was successfullydescribed by seven thin-layer drying models with R2 range between 0.944 and 1.000. Dependingon drying temperatures and fish species, the drying times could be shortened using the USV techniquebetween 7.4% and 27.4% compared with vacuum-drying. The highest effective moisture diffusivity wasdetermined in the fillets dried with the USV technique and they increased with increasing drying temperatures.Ultrasonic treatment accelerated the vacuum drying process for the fillets; therefore, this techniquecould be used to improve the efficiency of vacuum-drying for the fillets.
การแปล กรุณารอสักครู่..