MOISTURE SORPTION BEHAVIOR OF WEANING FOODS

Water activity - equilibrium moisture content data were obtained for commercial weaning foods A and B at 20, 30, 40 and 50+/-1-degrees-C using dynamic method. Commonly used models such as Brunauer Emmette Teller (BET; Caurie's; Henderson's; Chung and Pfost; and Guggenheim Anderson deBoer (GAB) were fitted to the observed values of moisture sorption data to find their suitability to predict the moisture sorption behaviour of these foods. Guggenheim Anderson deBoer model described the moisture sorption of the two weaning foods, better than other equations considered. Henderson's; Chung and Pfost; and Caurie's equation could predict equilibrium moisture content values more correctly with two pairs of their constants.