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2002
Conference Paper
Titel
Recovery of volatile essential oils from citron (citrus junos) peel with supercritical carbon dioxide
Abstract
The volatile essential oils of freeze-dried citron peel were extracted using supercritical carbon dioxide, with and without ethanol entrainer, in a semi-flow type system and analyzed by gas chromatography. The results, compared with extracts obtained by SDE (simultaneous steam distillation and extraction), and conventional solvent extraction using ethanol and ether, showed SCO2 to be a superior solvent. The major compound, limonene, was recovered by the SFE process at varying conditions of temperature, 303.15 K to 18.15 K and pressure, 6.9 MPa to 17.2 MPa. The maximum recovery of volatile essential oil by SFE was achieved at 13.8 MPa and 313.15 K.
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