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The leaf oil of Ferula arrigonii Bocchieri was investigated using combination of GC, GC/MS and 13C-NMR spectroscopy. After fractionation by column chromatography, 56 components were identified, representing 97.0% of the total amount of the oil. The main constituents were β-phellandrene (16.6%), germacra-1(10),5-dien-11-ol (15.4%) and linalool (12.5%). 13C-NMR appeared to be a powerful tool for sesquiterpene identification.
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Filippini et al. (2000) studied this question.
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