Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/94223
Full metadata record
DC Field | Value | Language |
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dc.creator | Joana Oliveira | |
dc.creator | Joana Azevedo | |
dc.creator | Artur M S Silva | |
dc.creator | Natercia Teixeira | |
dc.creator | Luis Cruz | |
dc.creator | Nuno Mateus | |
dc.creator | Victor de Freitas | |
dc.date.accessioned | 2022-09-08T01:13:02Z | - |
dc.date.available | 2022-09-08T01:13:02Z | - |
dc.date.issued | 2010 | |
dc.identifier.issn | 0021-8561 | |
dc.identifier.other | sigarra:49307 | |
dc.identifier.uri | https://hdl.handle.net/10216/94223 | - |
dc.description.abstract | In the present work, several compounds bearing similar spectroscopic features were found to occur in aged Port wines and respective sediments (lees). The data obtained revealed two new families of compounds with unique spectroscopic characteristics, displaying a wavelength of the maximum absorption at high wavelength in the visible spectrum at similar to 730 and similar to 680 nm. The structure of these pigments was elucidated by liquid chromatography/diode array detector mass spectrometry (LC/DAD MS) and nuclear magnetic resonance (NMR), and their formation pathway in wines was established. Their structure is constituted by two pyranoanthocyanin moieties linked together through a methyne bridge. This new family of compounds displays an attractive and rare turquoise blue color at acidic conditions and has never been reported in the literature. | |
dc.language.iso | eng | |
dc.rights | restrictedAccess | |
dc.subject | Outras ciências agrárias | |
dc.subject | Other Agrarian Sciences | |
dc.title | Pyranoanthocyanin Dimers: A New Family of Turquoise Blue Anthocyanin-Derived Pigments Found in Port Wine | |
dc.type | Artigo em Revista Científica Internacional | |
dc.contributor.uporto | Faculdade de Ciências | |
dc.identifier.doi | 10.1021/jf9044414 | |
dc.identifier.authenticus | P-003-7DK | |
dc.subject.fos | Ciências agrárias::Outras ciências agrárias | |
dc.subject.fos | Agrarian Sciences::Other Agrarian Sciences | |
Appears in Collections: | FCUP - Artigo em Revista Científica Internacional |
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File | Description | Size | Format | |
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49307.pdf Restricted Access | 964.4 kB | Adobe PDF | Request a copy from the Author(s) |
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