Desorption Isotherms for Plantain at Several Temperatures

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Abstract
Moisture equilibrum data for desorption of water from ripe and unripe plantain was obtained at 40°, 50°, 60°, and 70°C over a range of relative humidities from 10–90% using a static gravimetric method. Ripe plantain exhibited higher equilibrum moisture (EMC) than unripe plantain when exposed to the same conditions. A nonlinear least squares regression program was used to fit five desorption isotherm models to the experimental data and the parameters of the models evaluated. The minmum standard error of estimates of the EMC (1.9% for ripe and 1.4% for unripe plaintain) was obtained by using the modified Halsey model.