Dynamics and model for supercritical carbon dioxide drying of tilapia fillet

The supercritical CO2 drying is a new drying technique. In order to master the supercritical CO2 drying characteristics of tilapia fillet, the influences of the temperature, pressure and CO2 flow on supercritical CO2 drying process of tilapia fillet under certain condition were studied and the equations of drying curve were fitted. The results showed that drying temperature (35-55℃) had a significant effect on supercritical CO2 drying, while pressure (15-35?MPa) and flow of CO2 (15-35?L/h) had a less effect on supercritical CO2 drying. The drying process could accurately be described by the Page model. The results can provide some helpful information for industrialization production and control of supercritical CO2 drying for tilapia fillet.