Abstract
Authors have proposed application of ice slurry to a cold storage of foods for widely using the ice slurry. Thus, in order to form new ice slurry for cold storage of foods, a trehalose with the effect expected to suppress ice crystal growth was used. The trehalose is a kind of a food additive. In this paper, "harvest method" was adopted to form the ice slurry. And freezing characteristics of trehalose solution were investigated based on a scraping force of ice growing on a carbon steel surface and observation results for behaviors of scraped ice, varying amounts of formed ice and supercooling degrees. Moreover, a feature for freezing characteristics of the trehalose solution was also clarified by comparing scraping force in the case of the trehalose solution with that of the ethylene-glycol solution.
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