Seasonal Variation of Leaf, Stem and Umbel Ray Essential Oils ofBupleurum gibraltariumLam
Autor: | M. C. García-Vallejo, María José Pérez-Alonso, Carlos Fernández-López, Jesús Palá-Paúl, Joaquín Altarejos, Ana Fernández-Ocaña, Arturo Velasco-Negueruela, Ana M. Camacho-Simarro |
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Rok vydání: | 2006 |
Předmět: |
Bupleurum
Limonene Apiaceae 2 3 4-trimethylbenzaldehyde biology Bupleurum gibraltarium Seasonal variation Umbel Sabinene General Chemistry Seasonality biology.organism_classification medicine.disease chemistry.chemical_compound chemistry Oil content α-pinene Botany Essential oil composition medicine Composition (visual arts) |
Zdroj: | Repositorio de Resultados de Investigación del INIA Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria INIA INIA: Repositorio de Resultados de Investigación del INIA |
ISSN: | 2163-8152 1041-2905 |
DOI: | 10.1080/10412905.2006.9699124 |
Popis: | The yield and composition of essential oils from leaves, stems, umbel rays and also from whole aerial parts of Bupleurum gibraltarium Lam. (Apiaceae) were determined during the pre-flowering, full flowering, late flowering, and fruiting vegetative periods. A fruit sample was also studied for comparative purposes. Leaves (0.8–1.8% yield) and stems (0.3–0.7%) reached their maximum oil content during the late flowering period, whereas umbel rays (2.2–3.7%) reached it in full flowering. Oil samples were analyzed by capillary GC and GC/MS components which were found in amounts greater than 2% were selected to carry out a seasonal study. In the leaf oils, sabinene (12.0–33.9%) and limonene (7.8–23.4%) were the main components, the sabinene level being minimum in full flowering and maximum in fruiting. In stem oils, sabinene (4.7–21.6%) and 2,3,4-trimethylbenzaldehyde (9.3–13.6%) were the main components, the sabinene level being minimum in pre-flowering and maximum in full flowering. In umbel ray oils, sabinene (20.7–43.1%) was the first component in all the phenological periods, followed by α-pinene (7.3–28.2%). Both monoterpenes increased their levels in late flowering and reached minimum amounts in fruiting. © 2006, Taylor & Francis Group, LLC. All rights reserved. |
Databáze: | OpenAIRE |
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