The effects of high pressure and heat treatments on sterilization, enzyme inactivation and quality of kiwifruit juice were investigated. Pressure levels ranging from 200 to 600 MPa and temperatures varying from 10 to 50℃were applied for up to 30 min.
Results show that total number of bacteria declined with pressure and temperature increased and arrived commercial asepsis under 400 MPa at 30℃. After 30-day storage period at 4℃, kiwifruit juice was still safe while 50℃was used as treated temperatu...