Chemical characterization and antioxidant activities of oligomeric and polymeric procyanidin fractions from grape seeds

Two procyanidin fractions, namely oligomers and polymers isolated from grape seed methanolic extract were characterized. Phenolic composition and procyanidin purity of these fractions were determined by normal-phase and reverse-phase HPLC, thioacidolysis-HPLC, ESI-MS analyses, formaldehyde–HCl preci...

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Bibliographic Details
Main Author: Spranger, Isabel (author)
Other Authors: Sun, Baoshan (author), Mateus, Ana M. (author), Freitas, Vitor (author), Ricardo-da-Silva, Jorge M. (author)
Format: article
Language:eng
Published: 2013
Subjects:
procyanidins
grape seed
thioacidolysis
ESI-MS
antioxidant activities
Online Access:http://hdl.handle.net/10400.5/5596
Country:Portugal
Oai:oai:www.repository.utl.pt:10400.5/5596

Internet

http://hdl.handle.net/10400.5/5596

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