Pressure and temperature evolution in the gelatin gel sample during the different freezing processes: (—), sample center temperature; (- - -), sample
surface temperature; (— —), pressure. (a) Freezing at atmospheric conditions. (b) High-pressure assisted freezing at 50 MPa. (c) High-pressure shift freezing
from 350 MPa/K17 8C to 0.1 MPa. (d) High-pressure shift freezing from 350 MPa/K17 8C to 50 MPa.