Effect of Growth Stage on Essential‐Oil Yield and Composition of Daucus sahariensis |
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| Authors: | Guido Flamini Tahar Smaili Amar Zellagui Noureddine Gherraf Pier Luigi Cioni |
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| Institution: | 1. Dipartimento di Scienze Farmaceutiche, Sede di Chimica Bioorganica e Biofarmacia, University of Pisa, Via Bonanno 33, I‐56126 Pisa;2. Laboratory of Biomolecules and Plant Breeding, Life Science and Nature Department, Faculty of Exact Science and Life Science and Nature, University of Larbi Ben M'hidi, Oum Elbouaghi, 04000, Algeria;3. Laboratoire des Ressources Naturelles et Aménagement des Milieux Sensible, University of Larbi Ben M'hidi, Oum Elbouaghi, 04000, Algeria |
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| Abstract: | The essential oils obtained by hydrodistillation from Daucus sahariensis Murb . harvested at three different growth stages were characterized by GC/MS analysis. In total, 88 compounds were identified, with myristicin (29.8–51.7%), myrcene (6.7–31.1%), α‐pinene (11.6–14.8%), and limonene (5.3–11.5%) as main constituents. Monoterpene hydrocarbons were the most represented compounds in the oils of the plant samples collected during the flower‐budding and full‐flowering periods. On the contrary, during the fruiting stage, the oils were dominated by phenylpropanoids. The essential oils were subject of considerable variation in their composition during the various developmental stages, particularly concerning the content of myrcene that decreased significantly passing from the vegetative to the fruiting stage. Conversely, for myristicin, the opposite trend was observed. Furthermore, the essential‐oil yields were quite low during the flower‐budding phase (0.27%), but rapidly increased during plant development (0.63 and 0.68% for the flowering and fruiting phases, resp.). |
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| Keywords: | Daucus sahariensis Essential oils Myristicin Myrcene |
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