Freezing is a food preservation method that can be used to extend shelf life and maintains the original characteristics of fish-based products, which are highly perishable. Freezing is based on the reduction of food temperature at temperatures below the freezing point, when liquid water changes its phase into solid to form ice crystals (Fellows and Freezing, 2000). Freezing point (Tf) is one of the most important properties of foods (Rahman, 1994). It is the lowest temperature at which a product can be
refrigerated and stored unfrozen (Rahman and Driscoll, 1994).This property is used in prediction models of thermal properties, freezing and thawing times in order to optimize the process and the product quality (Rahman and Driscoll, 1994; Ribero et al., 2007).