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Molecules 2013, 18(3), 2803-2820; doi:10.3390/molecules18032803

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

1
Department of Organic Chemistry, Institute of Chemistry, UNESP—Sao Paulo State University, 14800-900, Araraquara, Sao Paulo, Brazil
2
Department of Organic Chemistry, Faculty of Science, University of Yaounde I, PO Box 812, Yaounde, Cameroon
3
Center of Chemical and Instrumental Analysis, Embrapa Agroenergy, PqEB, W3 North, 70770-901, Brasilia, Distrito Federal, Brazil
4
Experimental Campus of Sao Vicente, UNESP—Sao Paulo State University, 11350-000, Sao Vicente, Sao Paulo, Brazil
*
Author to whom correspondence should be addressed.
Received: 2 February 2013 / Revised: 16 February 2013 / Accepted: 25 February 2013 / Published: 1 March 2013
(This article belongs to the Section Natural Products)
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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.
Keywords: HPLC/ESI-MS; FIA-ESI-IT-MSn; proanthocyanidins; Parkia biglobosa; Fabaceae; antiradical HPLC/ESI-MS; FIA-ESI-IT-MSn; proanthocyanidins; Parkia biglobosa; Fabaceae; antiradical
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Tala, V.R.S.; Candida da Silva, V.; Rodrigues, C.M.; Nkengfack, A.E.; Campaner dos Santos, L.; Vilegas, W. 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 2013, 18, 2803-2820.

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