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Separation Science and Technology Volume 36, 2001 - Issue 15
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Original Articles

MODELING OF THE THYME-SUPERCRITICAL CARBON DIOXIDE EXTRACTION SYSTEM. I. THE INFLUENCE OF CARBON DIOXIDE FLOW RATE AND GRINDING DEGREE OF THYME

Zoran Zeković Department of Biotechnology and Pharmaceutical Engineering, Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, Novi Sad, 21000, YugoslaviaCorrespondence[email protected]
,
Žika Lepojević Department of Biotechnology and Pharmaceutical Engineering, Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, Novi Sad, 21000, Yugoslavia
&
Aleksandar Tolić Department of Biotechnology and Pharmaceutical Engineering, Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, Novi Sad, 21000, Yugoslavia
Pages 3459-3472 | Received 01 May 2000, Published online: 15 Feb 2007
 
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Abstract

The influence of carbon dioxide flow rate and grinding degree of thyme on supercritical fluid extraction of thyme was investigated. The extraction rate of the pharmacologically important compound of thyme-thymol can be successfully expressed by analogy to first-order reaction kinetics. To model extraction of the thyme–supercritical carbon dioxide system, we used the Reverchon-Sesti Osseo equation as well as our modified equation.

ACKNOWLEDGMENT

The authors are thankful to Mr. Lazar Olušfski for thyme sample.

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