期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 42, 期 10, 页码 1688-1695出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.lwt.2009.05.010
关键词
Water activity; Sorption isotherm; Sorption models; Sorption mechanism; Classification; Desorption; Adsorption; Langmuir
The equation developed by Blahovec and Yanniotis, which is based on surface adsorption and solution water, was applied for fitting experimental sorption data for starchy and high protein foods, fruits and vegetables, nuts, legumes, and seeds. Analysis of sorption isotherms shows that surface adsorption is more important than solution water in the isotherms for cereals, potatoes, legumes and seeds, while in vegetables, fruits, meat, milk products and some nuts solution water is more important. The ratio of solution water to surface adsorption increases as water activity increases, it is higher for the adsorption isotherm than the desorption isotherm at any water activity value and decreases as temperature increases. (C) 2009 Elsevier Ltd. All rights reserved.
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