Application of pre-treatments such as electrical methods, and ultrasound are being used for decreasing
the processing time and/or preserving the quality of the foodstuffs in drying technology. In this study,
electroplasmolysis (EP) and ultrasound pre-treatments (US) were implemented for mushrooms. Elecroplasmolysis
was performed at 100 V for 40 s and ultrasound was performed at 35 kHz for 30 min. Then
samples were dried in a tray dryer at 50 C with a 1.5 m/s air velocity. Drying rate and quality properties
were investigated. As a result, the combination of pretreatments (EP þ US) increased the drying rate
around 37.10%. Ultrasound treatment preserved the phenolic content and color values better compared to
electroplasmolysis.