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Tecoma stans  (L.), popularly known as ipê-mirim, is used in traditional medicine for the treatment of diabetes and digestive problems. The components of the hexane (HE) and methanol (ME) extracts obtained from the pericarp of  T .  stans  were identified by gas chromatography-mass spectrometry (GC-MS) in their methyl ester forms (FAME). The antioxidant and cytotoxic activities of extracts, fatty acids, and methyl esters were evaluated. Methyl linolenate, methyl linoleate, and methyl palmitate were the major compounds in the HE, while methyl hexacosanoate was the main component in the ME. The samples exhibited significant antioxidant potential by DPPH assay. In the  Artemia salina  larvae bioassay, FAME (HE) and FAME (ME) were considered toxic. This study showed, for the first time to our knowledge, the chemical composition of the hexane and methanol extracts from  T. stans  pericarp, as well as the antioxidant and cytotoxic activities of the extracts, fatty acids, and methyl esters.

Chemical composition, antioxidant and cytotoxic activities of extracts from the pericarp of Tecoma stans (L.) Juss. Ex Kunth (Bignoniaceae)