Antioxidant activity and flavonoids identification by LC-MS/MS analysis in leaf extract from trattinnickia rhoifolia willd

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Abstract

The objectives of this work were to evaluate the antioxidant and hepatoprotective activities in the oxidative stress model induced by paracetamol in male Swiss mice, to evaluate the hypoglycemic and hypolipidemic action and to identify flavonoids in the leaves ethanolic extract from Trattinnickia rhoifolia. By the LC-MS / MS method, eight flavonoids were identified in the hydromethanolic (HM) and ethyl acetate (EA) fractions, except for Amentoflavone, the flavonoids Apigenin, Canferol, Luteolin, Quercetin, Quercetin-3-β-d-glucoside, Rutin and Taxifoline were identified for the first time in this species. These fractions were evaluated for antioxidant capacity (DPPH test) and their protective effect in vivo through the analysis of superoxide dismutase, catalase, glutathione-s-transferase, non-protein thiols, ascorbic acid, TBARS and carbonylated proteins. The data showed that EA has antioxidant capacity and superior oxidative stress repair in chemical and biological analyzes, besides hypoglycemic and hypolipidemic action. Thus, the present work contributes significantly to the literature, since it is the first study that identifies the chemical constituents and pharmacological properties of leaves extract from T. rhoifolia.

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Magalhaes, L. M., Sinhorin, V. D. G., De Souza, C. C. P., De Campos Bicudo, R., & Sinhorin, A. P. (2019). Antioxidant activity and flavonoids identification by LC-MS/MS analysis in leaf extract from trattinnickia rhoifolia willd. Fronteiras, 87(2), 13–34. https://doi.org/10.21664/2238-8869.2019v8i2.p13-34

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