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The volatile composition of two Eryngium species was studied. The essential oils were obtained by hydrodistillation in a modified Clevenger-type apparatus, and their analyses were performed by GC and GC-MS. A total of 58 different compounds were identified. Their main constituents were as follows: E. serbicum: germacrene D (19.7 %), ?-elemene (10.0 %) and spathulenol (6.9 %); E. palmatum: sesquicineole (21.3 %), caryophyllene oxide (16.0 %), spathulenol (16.0 %) and sabinene (5.5 %). The main portion in both studied taxa consisted of sesquiterpenes. .
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Capetanos et al. (2007) studied this question.
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