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Composition of the essential oil of Juniperus cedrus Webb & Berth. grown on Madeira
Author(s) -
Cavaleiro Carlos,
Salgueiro Lígia,
Barroso José G.,
Figueiredo A. Cristina,
Pedro Luis G.,
Fontinha Susana S.,
Bighelli Ange,
Casanova Joseph,
Looman Anja,
Scheffer Johannes J. C.
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.1061
Subject(s) - monoterpene , chemistry , limonene , essential oil , sesquiterpene , cupressaceae , botany , terpene , fraction (chemistry) , composition (language) , terpenoid , stereochemistry , food science , organic chemistry , pollen , linguistics , philosophy , biology
The essential oils isolated from twigs of Juniperus cedrus Webb & Berth. grown on Madeira were analysed by GC, GC–MS and 13 C‐NMR. The oils consisted mainly of monoterpene hydrocarbons (53.1–87.8%), the main ones being α‐pinene (19.6–55.3%), limonene (17.3–32.7%) and Δ‐3‐carene (5.5–15.7%). The sesquiterpenoid fraction (4.1–22.3%) was dominated by E ‐caryophyllene (1.6–7.4%), while sandaracopimaradiene (0.1–6.1%), isoabienol (0.5–1.3%) and trans ‐totarol (0.4–2.2%) were the main diterpenoids (2.2–11.9%). Oct‐1‐en‐3‐ol (1.0–2.2%) was the major constituent of the non‐terpenic fraction (1.3–2.7%). The composition of our oil samples differed to some extent from that reported for J. cedrus oil grown on the Canary Islands. Copyright © 2002 John Wiley & Sons, Ltd.
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