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Extraction and isolation of Pistacia lentiscus L. essential oil by supercritical CO 2
Author(s) -
Congiu Raffaele,
Falconieri Danilo,
Marongiu Bruno,
Piras Alessandra,
Porcedda Silvia
Publication year - 2002
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.1095
Subject(s) - pistacia lentiscus , chemistry , supercritical fluid extraction , essential oil , myrcene , caryophyllene , chromatography , eucalyptol , pistacia , extraction (chemistry) , supercritical fluid , botany , organic chemistry , limonene , ecology , mediterranean climate , biology
Abstract Supercritical CO 2 extraction coupled to a fractional separation technique (SFE) was used to isolate essential oil from the leaves and berries of Pistacia lentiscus L. The technique adopted allowed us to separate the volatile oil from waxes. In the case of the leaf essential oil, the yield was 0.45% by weight of the charged material. The chemical composition of the oil, determined by GC–MS analysis, revealed the presence of β‐caryophyllene (31.38%), germacrene D (12.05%) and γ‐cadinene (6.48%). Remarkable differences were noticed in the corresponding hydrodistilled oil, composed chiefly by β‐pinene (18.71%), β‐phellandrene (12.83%) and β‐caryophyllene (13.22%). The yield of volatile oil obtained or treating Pistacia lentiscus berries was only 0.2%. β‐myrcene, α‐pinene and α‐phellandrene are the compounds characteristic of the oil obtained with both methods, SFE and hydrodistillation. Copyright © 2002 John Wiley & Sons, Ltd.