Abstract
Analysed the drying characteristics of white seedless grape under the conditions of air temperatures（30～45 ℃） and air velocity（0.5～2 m/s），and obtained the available moisture diffusion coeffi-cient and drying activation energy. Finally, non-linear regression analysis was used to develop four common agricultural thin layer-drying models based on the data, and these models were evaluated by coefficient of determination (R2), root mean squared error (RMSE) and chisquare value (χ2). Results: The available moisture diffusion coefficient were rising with the growth of air temperature and air velocity. The drying activation energy (Ea) is calculated to be 22.95 kJ/mol according to Arrhenius formula. According to the statistical parameters from four kinds of models, such as determination (R2), chisquare value (χ2) and root mean squared error (RMSE), the Parabolic model can well predict the moisture change law during drying process of white seedless grape. The results could provide a theoretical basis for white seedless grape drying production.
Publication Date
6-28-2017
First Page
79
Last Page
83
DOI
10.13652/j.issn.1003-5788.2017.06.016
Recommended Citation
Jiapeng, YANG; Shengkun, YAN; Lijun, XU; and Yan, LIU
(2017)
"Drying characteristics and mathematical model of hot air drying for white seedless grape,"
Food and Machinery: Vol. 33:
Iss.
6, Article 16.
DOI: 10.13652/j.issn.1003-5788.2017.06.016
Available at:
https://www.ifoodmm.cn/journal/vol33/iss6/16
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