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Carotenoid, chlorophyll, and chlorophyll-derived compounds in grapes and Port Wines

2005-01Artigo científico Acesso restrito
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dc.contributor.authorPinto, Maria Manuela Mendes
dc.contributor.authorFerreira, António César Silva
dc.contributor.authorCaris-Veyrat, Catherine
dc.contributor.authorPinho, Paula Guedes de
dc.date.accessioned2011-10-21T15:42:41Z
dc.date.available2011-10-21T15:42:41Z
dc.date.issued2005-01
dc.description.abstractCarotenoids and chlorophyll-derived compounds in grapes and Port wines were investigated by HPLCDAD and HPLC-DAD-MS (ESP+) analysis. A total of 13 carotenoid and chlorophyll-derived compounds are formally reported in grapes, 3 are identified for the first time, pheophytins a and b and (13β-carotene, and 3 others remain unknown. In Port wines 19 compounds with carotenoid or chlorophylllike structures are present, 8 still unidentified. The young wines showed higher total carotenoid content and chlorophyll-like compounds compared to aged Ports, with lutein and β-carotene as major carotenoids. Among samples analyzed of monovarietal Vitis vinifera L. cultivar wines produced with the five most important Douro varieties, Tinta Roriz contained the highest levels of carotenoids and Touriga Franca the lowest. The forced-aging study indicated that lutein was more sensitive to temperature than β-carotene. Additionally, aged wines showed higher ratios of β-carotene/lutein concentrations compared to new Ports. Rates of degradation of chlorophyll derivative compounds were higher than those for carotene and lutein.por
dc.identifier.citation"Journal of Agricultural and Food Chemistry" . ISSN 0021-8561. 53:26 (2005) 10034-10041por
dc.identifier.doi10.1021/jf0503513
dc.identifier.urihttp://hdl.handle.net/10400.14/6725
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.subjectCarotenoidspor
dc.subjectChlorophyllspor
dc.subjectChlorophyll derivativespor
dc.subjectGrapespor
dc.subjectPort winespor
dc.subjectHPLC-DAD-MS (EPS+)por
dc.subjectDegradationpor
dc.subjectAgingpor
dc.titleCarotenoid, chlorophyll, and chlorophyll-derived compounds in grapes and Port Winespor
dc.typejournal article
dspace.entity.typePublication
person.familyNameSilva Ferreira
person.familyNameGuedes de Pinho
person.givenNameAntonio Cesar
person.givenNamePaula
person.identifier392870
person.identifier.ciencia-id931A-48DA-23A8
person.identifier.ciencia-id2510-1418-EF48
person.identifier.orcid0000-0002-1188-1021
person.identifier.orcid0000-0002-7395-5700
person.identifier.scopus-author-id6504448214
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication826c11dd-d070-4b67-ac58-c96675e3f3b8
relation.isAuthorOfPublication0bde318f-79f7-4130-8600-e553f3384cc6
relation.isAuthorOfPublication.latestForDiscovery826c11dd-d070-4b67-ac58-c96675e3f3b8

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