Chemical compositions of the essential oil of commiphora. habessinica growing in Yemen gas chromatography-mass spectrometry analysis

الملخص EN

Background : The aim of this study is to analyze the chemical constituents of the essential oil of resin of Yemeni Commiphora habessinica.

Methodology : Commiphora.

habessinica resin was collected from Hujarriyah district, Taiz Governorate, Yemen.

Oleo gum resin (20g) of C.

habessinica was subjected to hydro distillation for 3 h in a Clevenger-type apparatus.

The constituents are quantified using gas chromatograph equipped with mass spectrometry.

results : thirteen constituents of Yemeni Commiphora habessinica were identified with two unidentified compounds with RI 1715 (5.2 %), and RI 1819 (4.1 %) respectively by gas chromatograph equipped with mass spectrometry.

The major constituents were β-elemene (32.1 %), α-selinene (18.9 %), cadina-1,4-diene (7.5 %), germacrene B (3.6 %), α-copaene (3.5 %), t-muurolol (3.0 %) caryophyllene oxide (2.

9%) and α-cadinol(2.6 %).

Conclusion : The data reported in our study showed that the oil composition of C.

habessinica was characterized mainly by sesquiterpene hydrocarbons (69.7 %) and showed among the Commiphora oils, the highest percentage in -elemene (32.1 %) which possessed antitumor activity.

Cadina-1,4-diene, t –muurolol, and α-cadinol were identified for the first time in the oil of Commiphora genus.