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Jatropha  species have been shown to be an important source of secondary metabolites with different biological effects.  Jatropha cinerea  (Ortega) Müll. Arg and  Jatropha cordata  (Ortega) Müll. Arg are distributed in the Northwestern region of Mexico, are adapted to extreme weather conditions and are widely used (stems, leaves, and sap) in traditional medicine. The aim of the present study was to carry out the phytochemical characterization and the evaluation of the antioxidant activity in methanolic extracts of stems and leaves from  J. cinerea  and  J. cordata . The compounds present in the extracts of both species were characterized by ESI-IT-MS/MS and quantified by HPLC-DAD. The results showed that the stem extracts of both species are rich in phenolic acids, while the leaf extracts are rich in flavonoids. Some of the main compounds found were gallic acid, gentisic acid, 3,4-Dihydroxybenzoic acid, vitexin, isovitexin, and catechol. Both species showed high concentrations of phenols and total flavonoids and antioxidant activity.  J. cordata  showed the highest antioxidant capacity and the highest concentration of phenolic compounds. Overall, both  Jatropha  species are a natural source of antioxidant compounds with potential biotechnological uses.

plants

Determination of Chemical Constituents and Antioxidant Activities of Leaves and Stems from Jatropha cinerea (Ortega) Müll. Arg and Jatropha cordata (Ortega) Müll. Arg