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Supercritical fluid extraction of the volatile oil from Santolina chamaecyparissus
Author(s) -
Grosso Clara,
Figueiredo Ana Cristina,
Burillo Jesus,
Mainar Ana M.,
Urieta José S.,
Barroso José G.,
Coelho José A.,
Palavra António M. F.
Publication year - 2009
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200900350
Subject(s) - borneol , chemistry , camphor , essential oil , chromatography , supercritical fluid , supercritical fluid extraction , extraction (chemistry) , sesquiterpene , fraction (chemistry) , particle size , organic chemistry , medicine , alternative medicine , pathology , traditional chinese medicine
Supercritical fluid extraction (SFE) of the volatile oil from Santolina chamaecyparissus L. flower heads was performed under different conditions of pressure, temperature, mean particle size and CO 2 flow rate. This oil was compared with the essential oil isolated by hydrodistillation (HD). The SFE volatile and essential oils were analysed by GC and GC‐MS. The range of the main volatile components obtained with HD and SFE were, respectively: 1,8‐cineole (25–30% and 7–48%), camphor (7–9% and 8–14%), borneol (7–8% and 2–11%), terpinen‐4‐ol (6–7% and 1–4%), terpinolene (1–4% and 1–7%) and isobornyl acetate (1–2% and 1–11%). The chemical composition of the extracts was greatly influenced by the conditions of pressure and temperature used. In fact, it was possible to enrich the sesquiterpene fraction by increasing the pressure from 8 to 9 MPa, while changing the temperature from 40 to 50°C at 90 bar enriched of the volatiles in n ‐alkanes.
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