The polyphenolic composition and antioxidant activity of the aerial parts of 18 medicinal or food plants of the Asteraceae family were studied. Five main caffeoyl derivatives were determined individually by HPLC and compared with levels determined by colorimetry for total dihydroxycinnamic derivatives and total phenolics. The aim of this study was to assess the contribution of these constituent...

La diabetes mellitus tipo 2 es una afección crónica con elevada prevalencia en las comunidades rurales e indígenas de Guatemala, cuales se ha reportado el uso plantas medicinales para su tratamiento. Con propósito conocer qué son utilizadas la población esta afección, realizó un estudio etnofarmacológico 36 sujetos tz’utujil Santiago Atitlán, Sololá, por medio análisis antropológico y farmacoló...

In this study, we present a proposal for the physical and chemical quality control of the powder of the species T. parthenium (feverfew) and its hydroalcoholic extract obtained by percolation. The sesquiterpene lactone parthenolide, the main active compound of this plant, was quantifi ed by HPLC and its content was found to be 0.49% in the powder and 1.06% in the extract. The total content of f...

The in vitro activity of parthenolide against Leishmania amazonensis was investigated. Parthenolide is a sesquiterpene lactone purified from the hydroalcoholic extract of aerial parts of Tanacetum parthenium. This isolated compound was identified through spectral analyses by UV, infrared, (1)H and (13)C nuclear magnetic resonance imaging, DEPT (distortionless enhancement by polarization transfe...