An improvement in the immersion freezing process for frozen dough via ultrasound irradiation

► Ultrasound-assisted freezing (UAF) process was consists of three stages. ► Ultrasound can enhance heat transfer during the UAF process for dough. ► Ice crystal nucleation inside the dough was enhanced in UAF process. ► The elasticity of frozen dough was improved in UAF process. ► UAF process has little influence on the flavor of dough.