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Revista Cubana de Química
versión On-line ISSN 2224-5421
Resumen
CAMACHO-CAMPOS, Conrado et al. Phytochemical and antibacterial properties of extracts of Tagetes erecta L. (Asteraceae). Rev Cub Quim [online]. 2019, vol.31, n.1, pp. 53-64. ISSN 2224-5421.
The aim of the present work was to evaluate the phytochemical and antibacterial properties of extracts of leaves and flower of Tagetes erecta L. Plants from the University of Matanzas area were collected. The samples were washed, dried and powdered. Aqueous and ethanolic extracts were prepared and the qualitative amounts of various secondary metabolites assayed. Reduced sugar and total soluble carbohydrates and proteins were also determined. The antibacterial activity against referenced and wild strains was evaluated. Abundance presence of flavonoids, terpenoids, tannins, coumarins and cardiac glycosides was observed. The ethanolic extractos of leaves and flower showed antibacterial properties against Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae y Staphylococcus epidermidis, with higher inhibitory values for the flowers. The obtained results support the folkloric use of this specie and its potentialities for the control of bacterial diseases.
Palabras clave : Tagetes; phytochemical; antibacterial activity; secondary metabolites.