Chamomile extraction with supercritical carbon dioxide: Mathematical modeling and optimization

被引：33
作者：
Rahimi, E. [2 ]
Prado, J. M. [3 ]
Zahedi, G. [1 ]
Meireles, M. A. A. [3 ]
机构：
[1] Univ Teknol Malaysia, Fac Chem & Nat Resources Engn, Proc Syst Engn Ctr PROSPECT, Johor Baharu 81310, Johor, Malaysia
[2] Razi Univ, Dept Chem Engn, Simulat & Artificial Intelligence Res Ctr, Kermanshah, Iran
[3] UNICAMP State Univ Campinas, LASEFI DEA FEA Coll Food Engn, BR-13083862 Campinas, SP, Brazil
来源：
JOURNAL OF SUPERCRITICAL FLUIDS | 2011年 / 56卷 / 01期
基金：
巴西圣保罗研究基金会;
关键词：
Chamomile; Supercritical fluid extraction; Mathematical modeling; Genetic algorithm; FLUID EXTRACTION; CO2; EXTRACTION; ESSENTIAL OIL; COEFFICIENTS; L;
D O I：
10.1016/j.supflu.2010.11.008
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Supercritical fluid extraction of chamomile using carbon dioxide was investigated in the current study. A model that accounts for both particle and fluid phase was presented for the supercritical extraction. The distribution coefficient of chamomile extract, between solid and solvent has been determined using genetic algorithm method. The model was solved numerically and was successfully validated with experimental data. The model was found to give superior results when compared to experimental data. The effect of particle diameter on extraction yield was investigated using the proposed model. Using genetic algorithm optimization technique 313.15 K and 20 MPa were found as the optimum temperature and pressure, respectively. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：80 / 88
页数：9
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