Salvia broussonetii Benth.: aroma profile and micromorphological analysis |
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Authors: | Basma Najar Luisa Pistelli Claudio Cervelli Claudia Giuliani |
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Institution: | 1. Dipartimento di Farmacia, Università degli Studi di Pisa, Pisa, Italy;2. CREA-OF Centro di Ricerca Orticoltura e Florovivaismo, Sanremo, Italy;3. Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy |
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Abstract: | The volatile profiles (VOC) and the essential oil (EO) composition from the aerial parts of Salvia broussonetii were analysed. Sesquiterpene hydrocarbons dominate the VOCs from leaves (95.7%) and flowers (67.6%), followed by monoterpene hydrocarbons (2.6 and 29.7%, respectively). The main common compounds are germacrene D, β-bourbonene, α-pinene, α-copaene and α-gurjunene, even if with divergent relative abundances. In the leaf EOs the sesquiterpenes prevail, even if not overwhelmingly (about 50.0%), followed by monoterpenes (23.0–35.0%) and by minor fractions of diterpene hydrocarbons and non-terpene derivates. The most abundant common compounds across the two sampling periods are α-pinene, β-pinene, isobornyl acetate, α-gurjenene, germacrene D and bifloratriene. A morphological characterisation of the trichomes responsible for the productivity in terpenes was also performed. Four different morphotypes were observed on the above ground organs of S. brussonetii: peltates and capitates of type II and III resulted the only producers of volatile substances. |
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Keywords: | Salvia broussonetii Lamiaceae volatiles essential oil micromorphological analysis glandular trichomes |
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