Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/342010
Type: Artigo
Title: Kinetics and mathematical modeling of thin layer drying of osmo-treated aloe vera (aloe barbadensis) gel slices
Author: Moradi, Mehdi
Niakousari, Mehrdad
Khaneghah, Amin Mousavi
Abstract: In the present work, the drying kinetics of osmo-pretreated Aloe vera gel slices (AVGS) was investigated. AVGS with an initial moisture content of 98.29% (wet basis) were subjected to 5 hr of osmosis process (10% NaCl solution, at 40 degrees C, NaCl solution to A. vera ratio = 5:1), prior to atmospheric thin layer drying at air temperatures of 55, 70, and 85 degrees C and air volumetric air flow rates of 0.015, 0.036, and 0.054 m(3)/s for the duration of 160 min. Results showed the mean values of the moisture ratio in air temperatures of 55, 70, and 85 degrees C were categorized into three levels (p < .01) of 0.551, 0.429, and 0.336, respectively, while the corresponding values for the osmo-convective method were 0.561, 0.418, and 0.321, respectively. Similarly, the mean values of the moisture ratio in air flow rates of 0.015, 0.036, and 0.054 m(3)/s for the convective and osmo-convective method assigned to different levels (p < .01) of 0.511, 0.417, 0.385 and 0.510, 0.416, 0.372, respectively. Superposition technique was utilized to propose a new model for each drying method. The predicted moisture ratios evaluated by the superposition technique were in a good agreement with experimental values of moisture ratio
Subject: Aloe vera
Country: Estados Unidos
Editor: Wiley
Rights: Fechado
Identifier DOI: 10.1111/jfpe.13180
Address: https://onlinelibrary.wiley.com/doi/full/10.1111/jfpe.13180
Date Issue: 2019
Appears in Collections:FEA - Artigos e Outros Documentos

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