In this work an research of sublimation rate of free ice and ice from sprat carcasses was presented. The aim of this study was to determine how fast the free ice will sublime comparing to ice in cell structure of sprat cascases. The study was divided into two stages. In the first stage the free-ice sample and sprat carcass was sublimated separately. In the second stage the sublimation rate was tested for both samples at the same time. Based on the results of the first stage of research it was found that both samples sublimated under different conditions and the results from this stage was not comparable. We found a linear character of the weights changes, which made it possible to calculate the rate of sublimation from the results of the second stage of the study. The results were used to evaluate the possibility of using innovative sublimation-vacuum-steam method to thawing the blocks of sprat carcasses.
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