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Journal of Supercritical FluidsVolume 57, Issue 2, June 2011, Pages 129-136

Supercritical CO2 extraction of Helichrysum italicum: Influence of CO2 density and moisture content of plant material(Article)

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  • aUniversity of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, 11120 Belgrade, Serbia
  • bInstitute for Medical Plant Research Dr Josif Pančić, Tadeuša Košćuška 1, 11000 Belgrade, Serbia

Abstract

Kinetics and selectivity of supercritical carbon dioxide (SC CO 2) extraction of Helichrysum italicum flowers were analyzed at pressures in the range of 10-20 MPa and temperatures of 40 °C and 60 °C (density of SC CO2 from 290 to 841 kg/m3) and also at 10 MPa and 40 °C using flowers with different moisture contents (10.5% and 28.4%). Increased moisture content of H. italicum flowers resulted in enchased solubility of solute enabling decrease of SC CO2 consumption necessary for achieving desired extraction yield. The most abundant compounds in the supercritical extracts are sesquiterpenes and waxes while monoterpenes and sesquiterpenes are the main constituents of essential oil obtained by hydrodistillation. The optimal set of working parameters with respect to extraction yield, SC CO2 consumption and chemical composition of extract were defined related to moisture content of raw material and SC CO 2 density. © 2011 Elsevier B.V.

Author keywords

Helichrysum italicumKineticsMathematical modellingMoisture content influenceProcess optimizationSupercritical extraction

Indexed keywords

Engineering uncontrolled termsHelichrysum italicumMathematical modellingMoisture content influenceProcess optimizationSupercritical extraction
Engineering controlled terms:Carbon dioxideEssential oilsMathematical modelsMoistureMoisture determinationOlefinsOptimizationProcess controlSupercritical fluid extraction
Engineering main heading:Extraction

Funding details

Funding sponsor Funding number Acronym
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja142073MPNTR
Ministarstvo Prosvete, Nauke i Tehnološkog RazvojaMPNTR

  • 1

    Financial support of this work by the Serbian Ministry of Science , Project No. 142073, is gratefully acknowledged.

  • ISSN: 08968446
  • CODEN: JSFLE
  • Source Type: Journal
  • Original language: English
  • DOI: 10.1016/j.supflu.2011.02.013
  • Document Type: Article

  Skala, D.; University of Belgrade, Faculty of Technology and Metallurgy, Karnegijeva 4, Serbia;
© Copyright 2011 Elsevier B.V., All rights reserved.

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