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

Molecules

Viviane Raïssa Sipowo Tala²  Viviane Candida da Silva²  Clenilson Martins Rodrigues²  Augustin Ephrem Nkengfack¹  Lourdes Campaner dos Santos² 

[1] Department of Organic Chemistry, Faculty of Science, University of Yaounde I, PO Box 812, Yaounde, Cameroon;Department of Organic Chemistry, Institute of Chemistry, UNESP—Sao Paulo State University, 14800-900, Araraquara, Sao Paulo, Brazil

关键词: HPLC/ESI-MS;    FIA-ESI-IT-MSⁿ;    proanthocyanidins;    Parkia biglobosa;    Fabaceae;    antiradical;   

DOI  :  10.3390/molecules18032803

来源: mdpi

【 摘 要 】

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.

【 授权许可】

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© 2013 by the authors; licensee MDPI, Basel, Switzerland.