Chemical Composition of the Essential Oils of Four Cultivated Eucalyptus Species in Iran as Medicinal Plants (E. microtheca, E. spathulata, E. largiflorens and E. torquata)

authors:

avatar Fatemeh Sefidkon 1 , * , avatar Mohammad Hassan Assareh 1 , avatar Zahra Abravesh 1 , avatar Mohammad Mehdi Barazandeh 1

Research Institute of Forests and Rangelands,Tehran, Iran
Iranian Journal of Pharmaceutical Research: Vol.6, issue 2; 135-140
published online: November 20, 2010
article type: Rapid Communication
received: October 21, 2005
accepted: June 21, 2006
DOI: https://doi.org/10.22037/ijpr.2010.711

how to cite: Sefidkon F, Assareh M H, Abravesh Z, Barazandeh M M. Chemical Composition of the Essential Oils of Four Cultivated Eucalyptus Species in Iran as Medicinal Plants (E. microtheca, E. spathulata, E. largiflorens and E. torquata). Iran J Pharm Res. 2007;6(2):e128322. https://doi.org/10.22037/ijpr.2010.711.

Abstract

The leaves of four cultivated Eucalyptus species, Eucalyptus microtheca var. Microtheca F. Muell., Eucalyptus spathulata, Eucalyptus largiflorens and Eucalyptus torquata were collected in spring from Kashan and Isfahan provinces (central region of Iran). After drying the plant materials in shade, their essential oils were obtained by hydro-distillation. The oils were analyzed by capillary gas chromatography, using flame ionization and mass spectrometric detection.

Twenty-two components were identified in the oil of Eucalyptus microtheca with 1,8-cineole (34.0%), p-cymene (12.4%), α-pinene (10.7%) and β-pinene (10.5%) as main constituents. Twenty-one compounds were identified in the oil of Eucalyptus spathulata with 1,8-cineole (72.5%) and α-pinene (12.7%) as main components. Twenty-six compounds were characterized in the oil of Eucalyptus largiflorens with 1,8-cineole (37.5%), p-cymene (17.4%) and neo-isoverbenol (9.1%) as main components. Sixteen compounds were characterized in the oil of Eucalyptus torquata with 1,8-cineole (66.9%) α-pinene (13.9%) and trans-pinocarveol (6.3%) as main constituents. The results showed that although the 1,8-cineole was the main component of the essential oils of all Eucalyptus species, but its relative content was higher in the oil of Eucalyptus spathulata and Eucalyptus torquata.