Essential oil from naturally exuded Pseudotsuga menziesii var. glauca (Pinaceae) resin

InformationPseudotsuga menziesii (Douglas fir) is an essential oil-bearing tree in the Pinaceae family.Essential oil was produced by hydrodistillation of naturally exuded resin and was analyzed by GC/MS and GC/FID to establish the essential oil profile.The resulting essential oils (n = 3) were largely composed of (average values) α-pinene (57.7%), camphene (1.5%), sabinene (3.1%), β-pinene (5.9%), δ-3-carene (17.6%), and limonene (6.4%).The essential oil yield and profile (monoterpenoids, sesquiterpenoids, diterpenoids) share many similarities with frankincense (Boswellia spp.) resin essential oils, particularly B. sacra.The current study, to the author's knowledge, is the first investigation of the essential oil obtained by hydrodistilled Douglas fir resin and provides the foundation for future research on the production and application of a novel and sustainable product.