Composition of Leaf Essential Oil of Eucalyptus camaldulensis
Muhammad Ashraf†, Qasim Ali†, Farooq Anwar* and Abdullah Ijaz Hussain

Department of Chemistry and Biochemistry, University of Agriculture, Faisalabad-38040, Pakistan E-mail: fqanwar@yahoo.com; Fax: (92)(41)9200764; Tel: (92)(41)9200161-69; Ext: 3309

†Department of Botany, University of Agriculture, Faisalabad-38040, Pakistan.

Abstract

Variation in the yield and chemical composition of essential oil obtained from the leaves of Eucalyptus camaldulensis from saline and non-saline provenances of Pakistan is presented. Eucalyptus camaldulensis leaves contained 0.98 and 0.96 % essential oils from saline and nonsaline areas, respectively. GC-MS analysis of the E. camaldulensis leaves essential oil revealed the presence of 24 and 27 compounds from the saline and non-saline samples, respectively. The principal constituent in the essential oil from saline and non-saline proven-ances was 1,8-cineole 34.42 and 40.05 %, respectively. Other major constituents were: α-pinene (14.68 and 12.43 %), γ-terpinene (9.42 and 7.48 %), ledol (7.42 and 7.67 %) and t-pinocarveol (8.36 and 3.32 %), respectively. Statistical analysis of the data showed that there were no significant differences in the yield of essential oil of E. camaldulensis from saline or non-saline habitats of Pakistan. However, the concentration of most of the chemical components varied significantly (p < 0.05) due to salt stress.

Keywords

Essential oils, GC-MS, Salinity, 1,8-Cineole, b-Pinene, p-Cymene.
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  • Asian J. Chem. /
  •  2010 /
  •  22(3) /
  •  pp 1779-1786