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Abstract
Lavender (Lavandula officinalis L.) has carminative, antispasmodic, antidepressant, expectorant, anti-rheumatic, relaxant, sedative, anti-inflammatory and tonic properties. It is a great aid for relaxing and winding down before bedtime. In this research the changes in the composition of essential oils from the aerial parts of Lavandula officinalis were determined at different temperatures and times. The essential oil of air-dried samples was obtained by hydro distillation and analyzed by gas chromatography/mass spectrometry (GC/MS). Changes in essential oils compositions were detected during storage for 4 months in refrigerator, freezer, and at room temperature. The results indicated that at room temperature, the proportions of compounds with lower boiling temperatures such as α-Pinene (2.3–0.2%), Camphene (1.5–0.1%), Sabinene (0.7–0.1%), β-Pinene (1.7–0.3%) and 1, 8-Cineole (24.7–16.2%) were decreased. Furthermore, the essential oil composition showed the least alterations and Lavandula officinalis L. kept its primary quality when stored at low temperatures, particularly in refrigerator.
Acknowledgments
First of all, I would like to thank the grace of God for completing this work and the author wish to thank superintendent of Eram Garden Mr. Engineer Hamid Reza Satari and Mr. Engineer Ahmad Reza Ghasemi for their kindness and cooperation and also to thank superintendent of Department of Natural Resources, Fars Research Center for Agriculture and Natural Resources Dr Vahid Rowshan for his kindness and providing the laboratory facilities.