Phytochemical profile and antioxidant properties of essential oils isolated from the aerial parts of Rosmarinus officinalis L. cultivatedin northwestern of Tunisia
Authors/Creators
- 1. Institut Sylvo-Pastoral de Tabarka, Université de Jendouba, Tunisie
- 2. Laboratoire des Ressources Sylvo-Pastorales, Institut Sylvo-Pastoral de Tabarka, Université de Jendouba, Tunisie
- 3. Unité de Physiologie Fonctionnelle et Valorisation des Bio-Ressources, Institut Supérieur de Biotechnologie de Béja, Université de Jendouba, Tunisie
Description
The present study aims to study chemical composition and antioxidant capacity of the essential oils isolated from the aerial parts of rosemary (Rosmarinus officinalis L.) cultivated in northwestern of Tunisia. Chemical composition of isolated rosemary essential oil was determined by gas chromatography and mass spectrometry (GC-MS). Antioxidant activities were determined in vitro using DPPH and ABTS assays. In this research, we identified 31 chemical compounds of the studied rosemary essential oil, and the main constituents were 1,8-cineole (20.07), eucalyptol (18.87), caryophyllene (9.49%), ?-pinene (8.52%), ?-thujone (7.42%) and ledol (6.39). We also showed that Rosmarinus officinalis Essential Oil (ROEO) present an important RSA (Radical Scavenging Activity) against DPPH and ABTS but lesser than BHT, used as reference antioxidant molecule. In conclusion we suggest that the proportion of monoterpenes present in the essential oil obtained from R. officinalis may be among the active principles responsible for the antioxidant activity shown in vitro by ROEO.