Essential oils from seven populations of Juniperus brevifolia (Seub.) Antoine, an endemic species of the Azores

Authors
da Silva, JA Pedro, LG Santos, PAG Figueiredo, AC Barroso, JG Tenreiro, RP Ribeiro, CA Deans, SG Looman, A Scheffer, JJC
Citation
Ja. Da Silva et al., Essential oils from seven populations of Juniperus brevifolia (Seub.) Antoine, an endemic species of the Azores, FLAV FRAG J, 15(1), 2000, pp. 31-39
Citations number
26
Categorie Soggetti
Food Science/Nutrition
Journal title
FLAVOUR AND FRAGRANCE JOURNAL
ISSN journal
08825734 → ACNP
Volume
15
Issue
1
Year of publication
2000
Pages
31 - 39
Database
ISI
SICI code
0882-5734(200001/02)15:1<31:EOFSPO>2.0.ZU;2-6
Abstract
The composition of the essential oils isolated from twigs and from unripe b erries of seven populations of Juniperus brevifolia (Seub.) Antoine, an end emic species of the Azorean archipelago, was analysed by GC and CC-MS. All oil samples were dominated by their monoterpene fraction (84-94%), limonene (41-79%) and alpha -pinene (6-40%) being the main oil components. The sesq uiterpene fraction occurred in a concentration range of 1-10%. Diterpenes a mounted to 69%, sandaracopimera-8(14), 15-diene (up to 5%) being the main c omponent 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 alpha -pinene and limonene showed a clear homo geneity between all the oil samples. Copyright (C) 2000 John Wiley & Sons, Ltd.