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Phenological Changes To The Chemical Composition And Biologicalactivity Of The Essential Oil From Moroccan Endemic Thyme (Thymusmaroccanus Ball), Chaima Jamali, Ayoub Kasrati, Khalid Bekkouche, Lahcen Hassani, Hans Wohlmuth, David Leach, Abdelaziz Abbad
Phenological Changes To The Chemical Composition And Biologicalactivity Of The Essential Oil From Moroccan Endemic Thyme (Thymusmaroccanus Ball), Chaima Jamali, Ayoub Kasrati, Khalid Bekkouche, Lahcen Hassani, Hans Wohlmuth, David Leach, Abdelaziz Abbad
Dr Hans Wohlmuth
The chemical composition, antioxidant and antimicrobial activities of essential oils isolated by hydrodistillation from the aerial parts of wild endemic Moroccan Thymus maroccanus at different developmental stages (vegetative, flowering and post-flowering) were evaluated. The yield of essential oils (v/w%) based on dry weight at different stages were: vegetative (2.14%), flowering (leaves: 1.80%; flowers: 3.46%), and post-flowering (leaves: 0.98%; post-flowers: 2.46%). Analysis of the essential oils by GC/MS revealed the presence of 28 components represented mainly by monoterpenes, both oxygenated (59.4–79.4%) and hydrocarbons (14.3–34.2%). The ranges of major constituents were as follow: carvacrol (14.1–77.6%), p-cymene (3.5–7.9%), γ-terpinene (3.8–6.6%) and α-pinene (1.2–7.8%). …