期刊
JOURNAL OF FOOD ENGINEERING
卷 88, 期 4, 页码 429-437出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2008.03.008
关键词
mango; Amelie; shrinkage; drying kinetics; diffusivity
Drying characteristics of Amelie mango were investigated through slices shrinkage behaviour at 50, 60 and 70 degrees C and drying kinetics at temperatures ranging from 50 to 70 degrees C and for slices of 2.5, 5 and 10 mm thick. Results showed that mango slices shrinkage was less influenced by temperature and best fitted by the linear model of volume additivity. The density of solid matrix and the linear shrinkage coefficient were evaluated respectively at 1468 kg/m(3) and 1.468. The fitting of experimental data with two models (Page and Henderson & Pabis) showed that drying curves were best described by the Page model. Both water diffusivity values and drying rates curves were strongly influenced by shrinkage. Drying rates were underestimated and diffusivities overestimated when drying data are not corrected for shrinkage. An Arrhenius dependence type of diffusivity was established from drying data corrected for shrinkage and the activation energy deduced was 25.355 kj/mol. (c) 2008 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据