Essential oils from stem and leaves of Angelica urumiensis (Mozaffarian) from Iran

Abstract

The composition of essential oils of the leaves and stem of Angelica urumiensis were analysed by chromatography–mass spectrometry. Overall, 58 volatile components were identified on the basis of their mass spectra characteristics and retention indices. Twenty-seven compounds were identified in the oil of the leaves, comprising 94.69% of the total oil, in which α-cadinol (20.2%), palmitic acid (14.14%), hexahydrofarnesyl acetone (10.03%), 1-dodecanol (7.55%), linoleic acid (6.37%) and oleic acid (5.34%) were the major constituents. Oxygenated sesquiterpenes and fatty acids were the main groups of compounds with 30.7% and 25.85%, respectively. Fifty compounds, representing 96.35% of the total oil, were identified in the stem oil. Palmitic acid (13.37), α-cadinol (9.24%), (epi)-α-cadinol (5.76%) and δ-cadenine (6.11%) were the major compounds. Sesquiterpenes and oxygenated sesquiterpenes dominated in the oil, comprising 28.03% and 20.9%, respectively. The chemical compounds of the essential oils showed that there are only 22 common compounds between two parts.

Keywords:

• essential oil
• Angelica urumiensis
• apiaceae
• α-cadinol

Acknowledgements

We are grateful to V. Mozaffarian (Research Institute of Forests and Rangelands, Tehran) for helpful assistance in collecting plant material and for botanical identification. We would also like to acknowledge the financial support provided by the Research Council of Shahid Beheshti University.