Abstract
The control of ice crystal growth has been an important issue in various fields. The adding of antifreeze protein (AFP) to food or organs has been focused on recently because it is appropriate for the controlled ice growth. The present authors have paid particular attention to the effects of an electric field on the freezing solution of ion antifreeze protein. Experiments were conducted using for aqueous solutions of winter flounder antifreeze protein and sodium chloride stored in a gap between two cover glasses. The dc field was given to the solution. The temperature at the ice/solution interface was measured with a fine thermocouple. The interface velocity was measured with successive images captured with a video camera. It turned out that the interface shape was changed by the electric field. The interface velocity and the supercooling degree were decrease by the electric field.
