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Journal of Agricultural and Food Chemistry
Article . 2001 . Peer-reviewed
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Determination of Carotenoid Profiles in Grapes, Musts, and Fortified Wines from Douro Varieties ofVitis vinifera

Authors: Pinho, Paula Guedes de; Ferreira, António C. Silva; Pinto, Manuela Mendes; Benitez, Juan Gomez; Hogg, Tim;

Determination of Carotenoid Profiles in Grapes, Musts, and Fortified Wines from Douro Varieties ofVitis vinifera

Abstract

beta-Carotene and six xanthophylls (lutein, neoxanthin, violaxanthin, luteoxanthin, cryptoxanthin, and echinenone) have been identified and semiquantitatively or quantitatively determined in musts and port wines for the first time. An HPLC method was developed and compared with that of one based on thin layer cromatography with scanning densitometry. The most abundant carotenoids present in red grape varieties are beta-carotene and lutein. In wines, significant quantities of violaxanthin, luteoxanthin, and neoxanthin were found. This study was done with berries (skin and pulp), musts, and fortified wines. Some experiments were performed to follow carotenoid content from grapes to wines. Although the levels of beta-carotene and lutein found in fortified wines were lower than those found in musts, other xanthophylls, such as neoxanthin, violaxanthin, and luteoxanthin, exist in appreciable amounts in young ports.

Country
Portugal
Keywords

Ethanol, Wine composition, Reproducibility of Results, Wine, Carotenoids, Fermentation, Vitis, Chromatography, Thin Layer, Aroma precursors, Chromatography, High Pressure Liquid, Winemaking

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
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51
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