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Isolation of eucalyptus oil by supercritical fluid extraction
Author(s) -
Della Porta G.,
Porcedda S.,
Marongiu B.,
Reverchon E.
Publication year - 1999
Publication title -
flavour and fragrance journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 70
eISSN - 1099-1026
pISSN - 0882-5734
DOI - 10.1002/(sici)1099-1026(199907/08)14:4<214::aid-ffj814>3.0.co;2-h
Subject(s) - chemistry , fractionation , chromatography , separator (oil production) , supercritical fluid extraction , extraction (chemistry) , supercritical fluid , steam distillation , essential oil , organic chemistry , physics , thermodynamics
Eucalyptus volatile oil was isolated by supercritical CO 2 extraction with a fractional separation technique. GC–MS analysis of the various fractions obtained at different extraction and fractionation conditions allowed the identification of the best operating conditions to isolate the volatile oil. A good extraction performance was obtained by operating at 90 bar and 50°C for 510 min. The optimum fractionation was achieved by operating at 90 bar and −10°C in the first separator and at 15 bar and 15°C in the second one. The influence of the extraction pressure and of the extraction time on the oil composition were also evaluated. A comparison with the hydrodistilled oil is also given. Copyright © 1999 John Wiley & Sons, Ltd.