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标题：Drying Kinetics of Nephelium Lappaceum (Rambutan) in a Drying Oven
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作者：Syarifah Nor Faizah Syed Abdul Rahman ; Syarifah Nor Faizah Syed Abdul Rahman ; Radziah Wahid 等
期刊名称：Procedia - Social and Behavioral Sciences
印刷版ISSN：1877-0428
出版年度：2015
卷号：195
页码：2734-2741
DOI：10.1016/j.sbspro.2015.06.383
语种：English
出版社：Elsevier
摘要：Abstract Nephelium Lappaceum (Rambutan) is a local seasonal fruit that has a short storage life. In this study, the effects of temperature on the drying of Nephelium Lappaceum samples were investigated. The present investigation was conducted at drying temperatures of 40°C, 50°C, 60°C, 70°C and 80°C for 24hours, and the drying kinetics of Nephelium Lappaceum were evaluated. The experimental data were fitted to five thin layer mathematical models, including the Lewis, Page, Handerson and Pabis, logarithmic and two-term model. These models were evaluated by comparing the coefficient of determination (R2), chi square (χ2), reduced sum square error (SSE) and root mean square error (RMSE). The logarithmic model best fit the experimental data. The effective diffusivity, Deff, was calculated using Fick's diffusion equation, and the value of Deff varied from 1.34 x 10-10 to 4.36 x 10-10 m2/s. The activation energy, Ea, and diffusivity constant, D0, were 24.99kJ/mol and 2.23 x 10-6 m2/s, respectively.
关键词：Drying kinetics;Rambutan;Nephelium Lappaceum;thin layer model;mathematical modelling