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Molecules 2013, 18(6), 7194-7238; doi:10.3390/molecules18067194

Supercritical Fluid Extraction of Plant Flavors and Fragrances

1
Department of Life Sciences and Systems Biology, University of Turin, Innovation Centre, Via Quarello 15/A, 10135 Turin, Italy
2
Biosfered S.r.l., Academic Spin Off of the University of Turin, Innovation Centre, Via Quarello 15/A, 10135 Turin, Italy
*
Author to whom correspondence should be addressed.
Received: 15 May 2013 / Revised: 13 June 2013 / Accepted: 14 June 2013 / Published: 19 June 2013
(This article belongs to the Special Issue Flavors and Fragrances)

Abstract

Supercritical fluid extraction (SFE) of plant material with solvents like CO2, propane, butane, or ethylene is a topic of growing interest. SFE allows the processing of plant material at low temperatures, hence limiting thermal degradation, and avoids the use of toxic solvents. Although today SFE is mainly used for decaffeination of coffee and tea as well as production of hop extracts on a large scale, there is also a growing interest in this extraction method for other industrial applications operating at different scales. In this review we update the literature data on SFE technology, with particular reference to flavors and fragrance, by comparing traditional extraction techniques of some industrial medicinal and aromatic crops with SFE. Moreover, we describe the biological activity of SFE extracts by describing their insecticidal, acaricidal, antimycotic, antimicrobial, cytotoxic and antioxidant properties. Finally, we discuss the process modelling, mass-transfer mechanisms, kinetics parameters and thermodynamic by giving an overview of SFE potential in the flavors and fragrances arena. View Full-Text
Keywords: volatile oils; flavoring compounds; supercritical CO2 extraction; modelling; biological activity volatile oils; flavoring compounds; supercritical CO2 extraction; modelling; biological activity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Capuzzo, A.; Maffei, M.E.; Occhipinti, A. Supercritical Fluid Extraction of Plant Flavors and Fragrances. Molecules 2013, 18, 7194-7238.

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