Moisture Adsorption Isotherms Characteristics of a New Moisture Adsorbers
Journal Title: International Journal of Modern Research In Engineering & Management. - Year 2018, Vol 1, Issue 10
Abstract
The purpose of the study was to analyze the effect of the replacement rate of the most hygroscopic moisture adsorber on the adsorption properties of a new moisture adsorbers formulated. Moisture adsorption isotherms of this new moisture adsorbers formulated were determined at 4 ± 1 °C, using the standard static gravimetric method. All moisture adsorption isotherms of new moisture adsorbers were type II following Brunauer’s classification. The moisture isotherms were sigmoid shaped and showed a clear dependence on the substitution rates of the most hygroscopic moisture adsorber (ads 3). Of the eighteen new moisture adsorbers formulated, only AB (40:60) and AL (60:40) adsorbers had the characteristic appearance of better moisture adsorbeers in modified atmosphere packaging of fruits and vegetables (tomato and mushroom). Thus, their incorporation into the packaging could avoid the condensation of water vapor by maintaining an optimal relative humidity. Based on statistical parameters, additive isotherm approach of Labuza (1968) could not correctly describe the adsorption characteristics of all this new moisture adsorbers formulated. However, this model gave better prediction with the new AB moisture adsorbers than with the new AL moisture adsorbers with sums of relative mean errors of 165.89% and 293.71%, respectively.
Authors and Affiliations
Yué Bi Yao Clément
Keywords
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