The objective of this work is the valorization of Ammi visnaga L. by chemical characterization, as well as the study of the antioxidant activity of its essential oil. The extraction of essential oil from seeds and umbels of this plant is carried out by hydrodistillation, and yields are 0.26% for dry umbels, 0.14% for fresh umbels, 0.02% for dry seed, while the dried umbel in an oven had a yield of 0%. The analysis of the essential oil of A. visnaga by Gas chromatography-Mass spectrometry (GC-MS) identified 29 principle compounds (Campholenal (13.6%)), longipinene (5.53%), longifolene (5.48%), estragole (6.53%) and β-Mentha 1-b-8-ol (25.57%). Furthermore, the antioxidant activity of this essential oil was evaluated by the method of 2,2-diphenyl-1-picrylhydrazyl (DPPH) and showed a significant efficiency in radical DPPH reducing with an IC50 value of essential oil of 56.053 ± 0.856 μg/ml.
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