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Chemical composition and antioxidant activity of essential oil from aerial parts of Teucrium flavum L. subsp. flavum growing spontaneously in Tunisia |
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| Authors: | Saoussen Hammami Ridha El Mokni Khaled Faidi Danilo Falconieri Alessandra Piras Silvia Procedda |
| Institution: | 1. Research Unit 13ES63, Applied Chemistry and Environment, Faculty of Sciences, 5000 Monastir, Tunisiasaoussenhammami@voila.fr;3. Laboratory of Botany and Plant Ecology, Faculty of Sciences of Bizerta, 7021 Jarzouna, Bizerta, Tunisia;4. Research Unit 13ES63, Applied Chemistry and Environment, Faculty of Sciences, 5000 Monastir, Tunisia;5. Industrial Technical Institute “Michele Giua”, Via Montecassino, 09134 Cagliari, Italy;6. Department of Chemical and Geological Science, University of Cagliari, Cittadella Universitaria di Monserrato, S.P. Monserrato-Sestu km 0, 700 - 09042 Monserrato (CA), Italy;7. Department of Chemical and Geological Science, University of Cagliari, Cittadella Universitaria di Monserrato, S.P. Monserrato-Sestu km 0, 700 - 09042 Monserrato (CA), Italy |
| Abstract: | The objectives of this study were to chemically characterise and evaluate the antioxidant potential of the essential oil from Teucrium flavum L. subsp. flavum growing spontaneously in Tunisia. The volatile oil was extracted by hydrodistillation of the aerial parts in a Clevenger type apparatus. Forty constituents were identified via GC and GC-MS analysis. β-caryophyllene (32.5%) and α-humulene (17.8%) were the most abundant components. The evaluation of free radical scavenging activity using stable DPPH free radical showed that the volatile oil exhibits a moderate antioxidant activity and reduces DPPH to 50% at EC50 value of 1230 μg mL? 1. |
| Keywords: | Teucrium flavum L subsp flavum Lamiaceae essential oil aerial parts GC/MS β-caryophyllene α-humulene antioxidant effects |