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Modeling of the Kinetics of Supercritical Fluid Extraction of Lipids from Microalgae with Emphasis on Extract Desorption.
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SYSNO ASEP 0467132 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Modeling of the Kinetics of Supercritical Fluid Extraction of Lipids from Microalgae with Emphasis on Extract Desorption. Author(s) Sovová, Helena (UCHP-M) RID, ORCID, SAI
Nobre, B.P. (PT)
Palavra, A. (PT)Source Title Materials. - : MDPI
Roč. 9, č. 6 (2016), s. 423-441Number of pages 19 s. Language eng - English Country CH - Switzerland Keywords microalgae ; supercritical extraction ; kinetics Subject RIV CI - Industrial Chemistry, Chemical Engineering Institutional support UCHP-M - RVO:67985858 UT WOS 000378630600022 EID SCOPUS 84975691259 DOI 10.3390/ma9060423 Annotation Microalgae contain valuable biologically active lipophilic substances such as omega-3 fatty acids and carotenoids. In contrast to the recovery of vegetable oils from seeds, where the extraction with supercritical CO2 is used as a mild and selective method, economically viable application of this method on similarly soluble oils from microalgae requires, in most cases, much higher pressure. This paper presents and verifies hypothesis that this difference is caused by high adsorption capacity of microalgae. Under the pressures usually applied in supercritical fluid extraction from plants, microalgae bind a large fraction of the extracted oil, while under extremely high CO2 pressures their adsorption capacity diminishes and the extraction rate depends on oil solubility in supercritical CO2. A mathematical model for the extraction from microalgae was derived and applied to literature data on the extraction kinetics in order to determine model parameters. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2017
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