title: Characterization of proanthocyanidins from Parkia biglobosa (Jacq.) G. Don. (Fabaceae) by Flow Injection Analysis-Electrospray Ionization Ion Trap Tandem Mass Spectrometry and Liquid Chromatography/Electrospray Ionization Mass Spectrometry.
abstract: The present study investigates the chemical composition of the African plant Parkia biglobosa (Fabaceae) roots and barks by Liquid Chromatography-Electrospray Ionization and Direct Injection Tandem Mass Spectrometry analysis. Mass spectral data indicated that B-type oligomers are present, namely procyanidins and prodelphinidins, with their gallate and glucuronide derivatives, some of them in different isomeric forms. The analysis evidenced the presence of up to 40 proanthocyanidins, some of which are reported for the first time. In this study, the antiradical activity of extracts of roots and barks from Parkia biglobosa was evaluated using DPPH method and they showed satisfactory activities.
authors: Department of Organic Chemistry, Institute of Chemistry, UNESP-Sao Paulo State University, 14800-900 Araraquara, Sao Paulo, Brazil.
authors: Viviane Raïssa Sipowo
authors: VR
authors: Tala
authors: Viviane
authors: V
authors: Candida da Silva
authors: Clenilson Martins
authors: CM
authors: Rodrigues
authors: Augustin Ephrem
authors: AE
authors: Nkengfack
authors: Lourdes Campaner
authors: LC
authors: dos Santos
authors: Wagner
authors: W
authors: Vilegas
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology; D007887:Fabaceae / Q000737:chemistry*; D017022:Flow Injection Analysis; D024301:Plant Bark / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D044945:Proanthocyanidins / Q000737:chemistry* / Q000494:pharmacology; D053719:Tandem Mass Spectrometry
chemical_list: D000975:Antioxidants; D010936:Plant Extracts; D044945:Proanthocyanidins