Composition and infraspecific variability of essential oil from Thymus herba barona Lois |
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Authors: | Marc Corticchiato Félix Tomi Antoine François Bernardini Joseph Casanova |
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Institution: | a1 Université de Corse, Equipe Chimie et Biomasse, CRES-URA CNRS 2053, Route des Sanguinaires, 20000 Ajaccio, France a2 Université de Corse, CEVAREN, BP 52, 20250 Corte, France |
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Abstract: | The composition of the essential oils of individual plants of Thymus herba barona Lois. growing wild in Corsica was investigated by GC, GC/MS an carbon-13 NMR. Eight groups of essential oil were distinguished: (i) thymol, (ii) carvacrol, (iii) linalool, (iv) geraniol, (v) -terpenyl acetate, (vi) terpinen-4-ol, (vii) carvone and cis-dihydrocarvone. Three chemotypes -thymol, carvacrol and linalool – are common in the genus Thymus, two others – geraniol, -terpenyl acetate – are scarce, while the latest three ones – terpinen-4-ol, carvone and cis-dihydrocarvone are quite original. It is the first time that the cis-dihydrocarvone chemotype is described in the genus Thymus |
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Keywords: | Thymus herba barona Lois Lamiaceae Essential oil Infraspecific variability 13C NMR Carvone cis-dihydrocarvone |
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