Hygroscopic behavior of mango powder of coite and espada cultivar and evaluation of physicochemical characteristics/Comportamento higroscopico de pos de manga das variedades coite e espada e avaliacao das caracteristicas fisico-quimicas

The mango, is much appreciated by its nutritional and sensorial characteristics, but is highly perishable and requires specific techniques for its conservation and marketing. In this sense, this study aimed to evaluate the hygroscopic behavior of powdered mango varieties Coite and Espada cv. using adsorption isotherms and physicochemical characteristics of theses varieties of mango in natura and powder The results showed that the mango powders didn't show significant difference in relation to physicochemical characteristics, except for the pH value. In contrary, in nature samples only the pH didn't show significant difference. Among the mathematical models used to fit the adsorption isotherms, the GAB model was the more appropriate to fit the experimental data showing the water content of the monolayer of 0,09086 and 0,08857 (g x 100 [g.sup.-1] dry matter) and relative average errors of 6,16 and 2.86% for Coite and Espada, respectively. The Oswin model was the second mathematical model that showed very close values to fit the GAB model.