Chemical composition and Antioxidant Activities of Thymus pallidus Essential Oils

OUKNIN Mohamed

Abstract


The analysis of essential oil of Thymus pallidus (T. pallidus oil) by GC led to the identification of 36 components accounting for (98.4%) of the total oil. The main compounds of essential oils of T. pallidus were thymol (44.5%), p-cymene (18.5%), γ-terpinene (14.7%), linalol (3.7%), carvacrol (3.5%), borneol (3%) and trans caryophyllene (1.9%). The antioxidant activities of the essential oil of T. pallidus were evaluated by using three methods: free radical DPPH (2,2-diphenyl-1-picrylhydrazyl) scavenging activity, the Ferric Reducing Power (FRAP), and β-Carotene. The antioxidant assays revealed that the essential oil tested from T. pallidus showed strong activities. On the basis of these results, it can be concluded that this plant species represents prominent new herbal raw material that can be used in food, pharmaceutical and cosmetic industries.


Keywords


Essential oil; Thymus pallidus; Antioxidant activities; GC/MS

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