Effects of extraction methods of phenolic compounds from Xanthium strumarium L. and their antioxidant activity

• Main Authors: R. Scherer, HT. Godoy
• Format: Article
• Language: English
• Published: Universidade Estadual Paulista 2014-03-01
• Series: Revista Brasileira de Plantas Medicinais
• Subjects: Xanthium strumarium; carrapicho; atividade antioxidante; compostos fenólicos; IAA
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-05722014000100006&lng=en&tlng=en

The effect of extraction methods and solvents on overall yield, total phenolic content, antioxidant activity, and the composition of the phenolic compounds in Xanthium strumarium extracts were studied. The antioxidant activity was determined by using 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), and the composition of the phenolic compounds was determined by HPLC-DAD and LC/MS. All results were affected by the extraction method, especially by the solvent used, and the best results were obtained with the methanol extract. The methanolic and ethanolic extracts exhibited strong antioxidant activity, and the chlorogenic and ferulic acids were the most abundant phenolic compounds in the extracts.