Summary
The essential oils of Estonian spruce and pine needles have been analysed by a combination of steam distillation/extraction, GC and GC-MS. According to their monoterpene composition Estonian pines belong to a high carene chemotype with monoterpenes representing up to 85% of total oil. Estonian spruce needle oil contains up to 70% of oxygenated terpenes and more limonene and 1,8-cineole than the same spruce species [Picea abies (L.) Karst.] from other localities.
A total of 60 components were identified. Coefficients of variation describe the range of component contents in individual trees within the population.
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Orav, A., Kailas, T. & Liiv, M. Analysis of terpenoic composition of conifer needle oils by steam distillation/extraction, gas chromatography and gas chromatography-mass spectrometry. Chromatographia 43, 215–219 (1996). https://doi.org/10.1007/BF02292955
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DOI: https://doi.org/10.1007/BF02292955