The objective of this work is drying to improve the drying kinetics and to reduce the energy costs involved in the unit operation. On the other hand, many studies on the direct use of ultrasound during drying have been reported. Applying ultrasound interrupts the conti-nuity of the cytomembrane, and thus increases the mass transfer rate between the cell and its extracellular surroundings. Ultra-sound applied during dehydration process has proven to improve the quality of dried food due to its non-thermal character. Moreover, the drying time can be reduced, and the process canbe performed at lower temperature, which is notably significant for products containing thermolabile substances.