Phenolic Compounds from An Algerian Endemic Species of <i>Hypochaeris laevigata</i> var. <i>hipponensis</i> and Investigation of Antioxidant Activities
Nabila Souilah | Zain Ullah | Hamdi Bendif | Kamel Medjroubi | Tahar Hazmoune | Tarek Hamel | Mehmet Öztürk | Gema Nieto | Salah Akkal
<i>Hypochaeris laevigata</i> var. <i>hipponensis</i> (Asteraceae) is an endemic plant from Algeria. In the current study, we analyzed for the first time its chemical composition, especially phenolic constituents of dichloromethane (DCM), ethyl acetate (EA), and n-butanol (BuOH) fractionsof the aerial parts of <i>Hypochaeris laevigata</i> var. <i>hipponensis</i> by liquid chromatography-mass spectrometry (LC-MS/MS). The number of phenolic compounds detected in DCM, EA, and BuOH fractions were found to be 9, 20, and 15, respectively. More specifically, 12 phenolic acids were detected. Among them, quinic acid, chlorogenic acid, and caffeic acid were the most abundant ones. Meanwhile, only seven flavonoids were detected. Among them, rutin, apigetrin, and isoquercitrin were the major ones. We also determined the total phenolic and flavonoid contents, and fraction EA showed the highest values, followed by BuOH, and DCM fractions. Furthermore, the antioxidant action was dictated by five methods and the tested plant fractions demonstrated a noteworthy antioxidant action.
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