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Supercritical Fluid Extraction of Eucalyptus Volatile Oil in View of Thermodynamic Modelling.
Sovová, Helena ; Stateva, R.P. ; Topiař, Martin
The aim of this contribution is to determine this relationship in the case of eucalyptus oil. The oil from the leaves of Eucalyptus grandis L., which was selected for experiments, is rich in a monoterpene alfa-pinene, a monoterpene oxide 1,8-cineole, a sesquiterpene aromadendrene, and a sesquiterpene alcohol globulol. The composition of saturated vapour phase in volatile oil+CO2 system was measured by sampling the extract from either milled dry leaves or essential oil on inert carrier, using a sufficiently large solvent residence time. Gas chromatography was used to analyse the composition of the samples, leaves, and essential oil. The extraction pressure and temperature were varied in the region of scCO2 with relatively low density, where the solvent selectivity is more pronounced. The experimental results were used to determine the temperature dependence of the parameters of thermodynamic model for the studied system.
Plný tet: SKMBT_C22016090211381 -  PDF
Plný text: content.csg - PDF
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