Comparing essential oil composition and essential oil yield of rosemarinus officinalis and lavandula angustifolia before and full flowering stages.
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Date
2012-01
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Abstract
The chemical composition of essential oils and essential oil yield obtained from
Rosemarinus officinalis (family Lamiaceae) and Lavandula angustifolia (family Lamiaceae) were
determined in two harvesting times. Their essential oil was determined by hydro-distillation, and
analysed by GC/MS. The results showed that harvesting time had significant effects on the oil content and
compositions in both plants. The maximum essential oil percentage was obtained in full flowering stage
in rosemary. Also and in lavender maximum linalool percentage (19.2%) was obtained in full flowering,
and minimum linalool percentage (0.2%) was shown in the other time. Also the concentration of β –
pinene (2.1%), δ-3-carene (1.5%), β – phellandrene (6.6%), Camphor(10.6%), Cryptone (0.8%), α-
terpineol (2.3%) and Linalool acetate (1.2%) were higher than befor flowering stage. Therefore the
harvesting time have a great importance in the production of essential oil and influenced on the quantity
and quality of essential oil. As consequence, the best harvesting time in both medicinal plants was
obtained in full flowering stage.
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Keywords
Harvesting time, Essential oil, Lavandula angustifolia, Rosemarinus officinalis
Citation
Najafian Sharareh, Rowshan Vahid, Tarakemeh Ameneh. Comparing essential oil composition and essential oil yield of rosemarinus officinalis and lavandula angustifolia before and full flowering stages. International Journal of Applied Biology and Pharmaceutical Technology. 2012 Jan-Mar; 3(1): 212-218.