Ivestigation Phytochimique Du Rhanterium Adpressum Pour Ses Propriétés Antioxydantes Et Antiradicalaires
Résumé: This present work aims to study the lipid fractions, essential oils, phenolic compounds and their antioxidant activities of the flowers of Rhanterium adpressum collected in the region Zelfana. The fatty acid composition of lipids allowed to deduct the percentage of saturated fatty acids increases the total expense of unsaturated fatty acids and total unsaturated fatty acids will total majority in the month of March is the month of the flowering of plant studied. On the other hand, the results of total tocopherols content in sterols and total phenols show that they vary in the opposite direction to the proportions of the total unsaturated fatty acids and in the same direction as those of saturated fatty acids total. The essential oils obtained by hydro- distillation samples were analyzed by GC and GC-MS. A total of 25 chemical constituents been identified. The results show that there are quantitative differences between the essential oils F1 and F2 . The essential oil sample F1 is characterized by the following major constituents: α-pinene (17.39%), camphene (21.81%) and Mycenae (19.28%). However, the oil sample F2 is characterized by the same major components but with different proportions (24.35% for the α-pinene, 17.79% to 18.6% and camphene for Mycènes). The qualitative analysis of essential oils Rhanterium adpressum total phenols shows that they are low in these compounds possessions. The result of the extraction and quantification of total phenols, flavonoids, and tannins reflect the butanol and ethyl acetate extracts of this species are relatively rich in phenolic compounds. Analysis of phenolic extracts of flowers Rantherium adpressum by HPLC showed that the majority of the phenolics extracts butanol and ethyl acetate are flavonoid type. Evaluation of antioxidant lipid extracts, essential oils and various phenolic compounds by in vitro tests, indicates that our extracts possess valuable antioxidant activities.
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