| Abstract
| - The essential oils from aerial and root parts of Glehnia littoralis were investigated by GC and GC−MS, and 125 compounds were identified. Plants were obtained from Northern and Southern Japan,and samples from the same locations were cultivated either exposed or unexposed to sunlight. Themain constituents of the essential oils were found to be α-pinene (0.03−13.40%), limonene (0.15−10.71%), β-phellandrene (0.03−22.93%), germacrene B (0.27−8.33%), spathulenol (0.24−6.50%),β-oplopenone (0.06−6.47%), panaxynol (0.38−24.58%), propyl octanoate (3.44−27.85%), hexadecanoicacid (0.45−27.80%), and linoleic acid (0.16−17.56%). Terpenoid compounds were found in higherconcentrations in the Northern type oils than in the Southern types, whereas the concentration ofpolyacetylenic compounds was higher in one of the Southern samples, except from the aerial partsof those cultivated exposed. Consequently, the constitution of the essential oils from G. littoraliscould be separated into Northern and Southern types. Keywords: Glehnia littoralis; essential oil; blanching culture; panaxynol
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