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• W2887805640 abstract "<br><b>OBJECTIVE:</b> <i>Amaranthus viridis</i> (<i>Amaranthaceae</i>) widely distributed all over the world, growing under a wide range of climatic conditions and has been utilized as a medicinal herb in traditional Ayurvedic medicine as antipyretic agents, also for the treatment of inflammation, ulcer, diabetic, asthma and hyperlipidemia. The aim of the study was designed to evaluate the chemical composition and antioxidant and biological properties of different fractions obtained from <i>A. viridis</i>.<br><b>MATERIALS AND METHODS:</b> Four different extracts of <i>A. viridis</i> were prepared using aqueous, methanol, chloroform, and hexane and investigated their antioxidant potential using free radical scavenging activities such as 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azinobis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), and nitric oxide (NO) radical scavenging activity, as well as metal chelating activity. In addition, antityrosinase and antigenotoxicity properties were also evaluated by the standard <i>in vitro</i> methods. Finally, the active methanolic extract (ME) was investigated for identifying the phenolic compounds using UPLC-MS/MS.<br><b>RESULTS:</b> In the present study, chlorogenic acid, gulonic acid, and kaempferol were found to be the major components responsible for the antioxidant activity of <i>A. viridis</i> extract as evidenced from UPLC-MS/MS. Furthermore, the ME of <i>A. viridis</i> revealed excellent antioxidant activities such as DPPH radical scavenging activity (IC₅₀= 47.23 ± 0.66 μg/mL), NO radical scavenging activity (IC₅₀= 64.33 ± 2.01 μg/mL), hydrogen peroxide (H₂O₂) radical scavenging activity (IC₅₀= 33.21 ± 3.3 μg/mL), ABTS radical scavenging activity (IC₅₀= 47.61 ± 1.31 μg/mL), metal chelating activity (IC₅₀= 32.1 ± 1.11 μg/mL), as well as lipid peroxidation inhibiting activity (IC₅₀= 112 ± 1.21 μg/mL). Furthermore, ME revealed that the protective effects of extract were observed on H₂O₂-induced DNA damages with alkaline comet assay.<br><b>CONCLUSIONS:</b> Taken together, the study concluded that the promising antioxidant capacities of <i>A. viridis</i> extract can further be utilized in various agricultural, pharmaceutical, and food applications.<br>" @default.
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• W2887805640 date "2018-01-01" @default.
• W2887805640 modified "2023-10-16" @default.
• W2887805640 title "Phytochemical screening, antioxidant, antityrosinase, and antigenotoxic potential of Amaranthus viridis extract" @default.
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• W2887805640 doi "https://doi.org/10.4103/ijp.ijp_77_18" @default.
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