Premium
Chemical composition of the oil and supercritical CO 2 extract of Schinus molle L.
Author(s) -
Marongiu Bruno,
Porcedda Alessandra Piras Silvia,
Casu Rita,
Pierucci Paola
Publication year - 2004
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/ffj.1350
Subject(s) - chemistry , supercritical fluid extraction , supercritical carbon dioxide , hydrocarbon , limonene , wax , supercritical fluid , extraction (chemistry) , carbon dioxide , steam distillation , separator (oil production) , essential oil , chromatography , organic chemistry , physics , thermodynamics
Supercritical carbon dioxide extraction allowed Schinus molle L. volatile oil to be obtained. Extraction conditions were as follows: pressure, 90 bar; temperature, 50 °C, carbon dioxide ow, Φ = 1.0 kg/h. Waxes were entrapped in the rst separator set at 90 bar and ‐10 °C. The oil was recovered in the second separator, working at 15 bar and 10 °C. The main components were α ‐phellandrene (26.5%), limonene + β ‐phellandrene (21.0%), elemol (10.8%) and α ‐eudesmol (6.1%). Comparison with the hydrodistilled oil (HD) did not reveal any large difference, whereas the signicant difference between the SFE and SD oils was the content of sesquiterpenes, which is higher in the SFE products. Collection of samples at different extraction times during supercritical extraction allowed changes of the oil composition to be monitored. Lighter compounds, as hydrocarbon monoterpenes, were extracted in shorter times than the heavier hydrocarbon and oxygenated sesquiterpenes. Copyright © 2004 John Wiley & Sons, Ltd.