Investigation of Juniperus species of the United States for new sources of cedarwood oil
Adams, R.P.
The 11 taxa of Juniperus with widespread distribution in the United States and with significant biomass production were investigated to determine their yields of cedarwood oil and the major components of commercial interest: alpha-cedrene, beta-cedrene, thujopsene, cuparene, cedrol, and widdrol. Taxa examined wereJ. ashei, J. californica, J. erythrocarpa, J. deppeana, J. monosperma, J. occidentalis var.occidentalis, J. o. var.australis, J. osteosperma, J. pinchotii, J. scopulorum, andJ. virginiana. The volatile heartwood oils were removed by steam distillation and analyzed by gas chromatography-mass spectroscopy to determine their yields and composition. Cedarwood oil yields inJ. erythrocarpa andJ. scopulorum were comparable to those of the two species currently being utilized (J. ashei, J. virginiana).
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