2021, Vol. 9 Issue 2, Part A
Chemical compositions and enantiomeric distributions of leaf essential oils of three conifers from Oregon
AUTHOR(S): Elizabeth Ankney, Prabodh Satyal and William N Setzer
ABSTRACT:Essential oils from conifers have been shown to be valuable in aromatherapy as well as topical medications. In this work, the leaves (needles) of Abies procera (noble fir), Pinus contorta subsp. murrayana (Sierra lodgepole pine), and Tsuga heterophylla (western hemlock) were collected from northern Oregon and the essential oils obtained by hydrodistillation. The essential oils were analyzed by gas chromatography – mass spectrometry (GC-MS) as well as chiral GC-MS. (–)-Limonene dominated the essential oil of A. procera (44.0%). The major components of P. contorta murrayana were β-phellandrene (37.2%; 99.6% (–)-enantiomer), β-pinene (17.0%; 97.8% (–)-enantiomer), and α-terpineol (11.6%; 96.6% (–)-enantiomer). Tsuga heterophylla essential oil showed α-terpineol (10.2%; 86.9% (–)-enantiomer), (+)-pulegone (7.6%), and beyerene (13.3%) as major constituents. This is the first characterization of the leaf volatiles from A. nobilis, P. contorta murrayana, and T. heterophylla from Oregon.
Pages: 07-14 | 212 Views 27 Downloads
How to cite this article:
Elizabeth Ankney, Prabodh Satyal, William N Setzer. Chemical compositions and enantiomeric distributions of leaf essential oils of three conifers from Oregon. Am J Essent Oil Nat Prod 2021;9(2):07-14.