Chemical composition and antioxidant activity of the essential oil and the methanol extract of Algerian wild carrot Daucus carota L. ssp. carota. (L.) Thell

In this study we identified the chemical composition and antioxidants effects of essential oils and methanolic extracts from (seeds and leaves) of wild carrot. A Total of 48 and 47 volatile compounds from the essential oils of leaves and seeds in D. carota L. subsp. carota, were identified by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). These compounds were mainly α-pinene (27.44%), sabinene (25.34 %), germacrene D (16.33 %) in leaves essential oil and geranyl acétate (52.45 %), sedrone S (14.04 %), azarone E (11.39 %) in seeds essential oil. The total phenol contents of leaves extract was higher (13.83 mg GAE/g) than seeds extract (7.08 mg GAE/g). The antioxidant activity was estimated by two methods (radical scavenging activity was determined by DPPH and 2-thiobarbituric acid (TBA) method for the measurement of lipid oxidation). Thus antioxidant activity of methanolic extracts (leaves and seeds) relevant to D. carota present an antioxidant activity more significant than the essential oils. According to the results of this experience, the essential oils of D. carota L. subsp. carota may be considered as an interesting source of natural antioxidant.