KINETICS OF ICE RECRYSTALLIZATION IN AQUEOUS FRUCTOSE SOLUTIONS

Recrystallization rates of ice in fructose solutions were determined o ver a range of temperatures and ice phase volumes. Accretive and migra tory recrystallization both occur, the dominant mechanism being strong ly dependent on the mean size of the crystals. Accretion dominated whe n crystals were small and close together. Recrystallization rates decr eased with decreasing ice phase volume and decreasing temperature. The temperature dependence of the rates was consistent with Williams-Land ell-Ferry kinetics. With a mean field correction for ice phase volume the observed data fit the recrystallization theory of Lifshitz, Slyozo v and Wagner reasonably well.