Sorption isotherms in materials of biological origin mathematical and physical approach

被引:102
作者
Blahovec, J [1 ]
机构
[1] Czech Univ Agr, Dept Phys, Suchdol 16521 6, Czech Republic
关键词
sorption; isotherm; 'GAB'; 'BET'; Henderson; Chung-Pfost; Halsey; oswin; point of inflexion; parameter limits;
D O I
10.1016/j.jfoodeng.2004.02.012
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The parameters of the 'G.A.B.' equation are discussed from mathematical and physical point of view. Clear limits of those parameters are determined. The point of inflexion of the 'G.A.B.' isotherm was also analysed with the conclusion that the 'G.A.B.' isotherm behaves too rigidly to be able to describe complicated sorption cases. The different possibilities of some other isotherms for such a purpose were displayed. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:489 / 495
页数:7
相关论文
共 20 条
[1]  
Adamson A. W., 1976, PHYS CHEM SURFACES
[2]   Adsorption of gases in multimolecular layers [J].
Brunauer, S ;
Emmett, PH ;
Teller, E .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1938, 60 :309-319
[3]  
Brunauer S., 1943, The absorption of the gases and vapors. I. Physical adsorption
[4]  
CHUNG D S, 1967, Transactions of the ASAE (American Society of Agricultural Engineers), V10, P552
[5]  
CHUNG D S, 1967, Transactions of the ASAE (American Society of Agricultural Engineers), V10, P549
[7]   HYDRATION OF SOYBEAN PROTEIN [J].
HANSEN, JR .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1976, 24 (06) :1136-1141
[8]   Moisture sorption isotherm characteristics of plantain (Musa, AAB) [J].
Johnson, PNT ;
Brennan, JG .
JOURNAL OF FOOD ENGINEERING, 2000, 44 (02) :79-84
[9]  
KAREL M, 1975, PRINCIPLES FOOD SC 2, P237
[10]  
KHALLOUFI S, 2000, CANADIAN AGR ENG, V42