Premium
Essential oils from seven populations of Juniperus brevifolia (Seub.) Antoine, an endemic species of the Azores
Author(s) -
da Silva Jaime A.,
Pedro Luis G.,
Santos Pedro A. G.,
Figueiredo A. Cristina,
Barroso José G.,
Tenreiro Rogério P.,
Ribeiro Carlos A.,
Deans Stanley G.,
Looman Anja,
Scheffer Johannes J. C.
Publication year - 2000
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(200001/02)15:1<31::aid-ffj862>3.0.co;2-c
Subject(s) - monoterpene , sesquiterpene , limonene , chemistry , botany , essential oil , terpene , chemotype , cupressaceae , stereochemistry , food science , biology , organic chemistry , pollen
The composition of the essential oils isolated from twigs and from unripe berries of seven populations of Juniperus brevifolia (Seub.) Antoine, an endemic species of the Azorean archipelago, was analysed by GC and GC–MS. All oil samples were dominated by their monoterpene fraction (84–94%), limonene (41–79%) and α‐pinene (6–40%) being the main oil components. The sesquiterpene fraction occurred in a concentration range of 1–10%. Diterpenes amounted to 6%, sandaracopimara‐8(14),15‐diene (up to 5%) being the main component of this fraction. Cluster analysis of the essential oils revealed two distinct groups, one from the twigs and the other from the berries. The enantiomeric composition of α‐pinene and limonene showed a clear homogeneity between all the oil samples. Copyright © 2000 John Wiley & Sons, Ltd.