Document Detail


Determination of carotenoid profiles in grapes, musts, and fortified wines from Douro varieties of Vitis vinifera.
MedLine Citation:
PMID:  11714348     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
P Guedes De Pinho; A C Silva Ferreira; M Mendes Pinto; J G Benitez; T A Hogg
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  49     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2001 Nov 
Date Detail:
Created Date:  2001-11-20     Completed Date:  2002-01-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5484-8     Citation Subset:  IM    
Affiliation:
Escola Superior de Biotecnologia, Universidade Católica Portuguesa, R. Dr. António Bernardino de Almeida 4200-072 Porto, Portugal. pinho@esb.ucp.pt
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MeSH Terms
Descriptor/Qualifier:
Carotenoids / analysis*
Chromatography, High Pressure Liquid
Chromatography, Thin Layer
Ethanol / chemistry
Fermentation
Reproducibility of Results
Vitis / chemistry*
Wine / analysis*
Chemical
Reg. No./Substance:
36-88-4/Carotenoids; 64-17-5/Ethanol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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