おおおなもみの精油成分
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The essential oil obtained by steam distillation from leaves of Oonamomi (<I>Xanthium canadense</I> Mill.) has been stadied. The constituents were separated by means of column chromatography and preparative gas chromatography and were identified by GC, MS, IR and NMR.<BR>Twelve terpenoid compounds and sixteen alkane were recognized as the constituents of the essential oil, among which germacrene-D (28.5%), <I>cis</I>-2-hexen-1-ol, limonene, δ-elemene, β-caryophyllene, α-humulene, β-selinene and δ-cadinene were main components.<BR>Two oxygen-containing guaiene compounds were isolated and their respective stractures were assigned to be 6, 11-oxyguaja-4, 9-diene (27) and 4-hydroxyguaja-6 (7), 10 (14) -diene (31) based on the chemical and spectral evidence.
- 日本油化学会の論文
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