doiSerbia

Chemical composition of Rhododendron aureum (Gold rosebay) essential oil from Pribaikal'e (Russian Federation)

Olennikov Daniil N. (Laboratory of Medical and Biological Research, Department of Biologically Active Substances, Institute of General and Experimental Biology, Siberian Division, Russian Academy of Sciences, Ulan-Ude, Russian Federation)
Dudareva Lubov' V. (Laboratory of Physicochemical Research Methods, Siberian Institute of Plant Physiology and Biochemistry, Siberian Division, Russian Academy of Sciences, Irkutsk, Russian Federation)
Osipenko Semion N. (Laboratory of Plant Physiological Genetics, Siberian Institute of Plant Physiology and Biochemistry, Siberian Division, Russian Academy of Sciences, Irkutsk, Russian Federation)
Penzina Tat'yana A. (Greenhouse group, Siberian Institute of Plant Physiology and Biochemistry, Siberian Division, Russian Academy of Sciences, Irkutsk, Russian Federation)

The essential oils from five samples of leaves of Rhododendron aureum from the Irkutsk region, Pribaikal'e, Russian Federation, were isolated by hydrodistillation and analyzed by a combination of GC and GC/MS. Compounds representing 70.5-78.3 % of the oils were identified. Twenty-seven compounds were identified according to their chromatographic retention indices and mass spectra. The major components of the oils were calarene (10.4- -66.4 %), β-bourbonene (0.5-27.4 %), α-selinene (2.1-8.0 %) and kaur-16-ene (2.0-6.3 %). It was found that the chemical composition of Rh. aureum essential oil depends on the altitude of the growing plants.

Keywords: Rhododendron aureum, gold rosebay, essential oil, calarene