Analysis and Antioxidant Activity of the Essential Oils of Ferula vesceritensis Coss. et Dur. and Thymus munbyanus Desf
2012
Benchabane, Othmane | Hazzit, Mohamed | Baaliouamer, Aoumeur | Mouhouche, Faiza
The essential oils from leaves of Thymus munbyanus Desf. and Ferula vesceritensis Coss et Dur. were analyzed by GC and GC-MS and assayed for their antioxidant activities. Eighty nine components representing 93 - 96.8 % of the oils were characterized. Sesquiterpene hydrocarbons (37.0 %) and oxygen-containing sesquiterpenes (47.8 %) were the predominant classes in the oil of F. vescertentis with viridiflorol (13.4 %), δ-cadinene (10.1 %) and famesol (8.1 %) as major constituents; while oxygen-containing monoterpenes (66.4 %) was the most prominent group in T. munbyanus oil with carvacrol (35.2 %) and thymol (18.5 %) as the main constituents. The antioxidant activities of the essential oils were evaluated by DPPH free radical-scavenging and thiobarbituric acid reactive substances (TBARS) assays. For both tests, T. munbyanus oil showed potent activity, similar to that of BHT, mainly for high concentrations, whereas F. vesceritensis oil showed moderate activity.
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