| PAZOUREK, Jiří, Dagmar GAJDOŠOVÁ, Miroslava SPANILÁ, Marta FARKOVÁ, Klára NOVOTNÁ a Josef HAVEL. Analysis of polyphenols in wines: correlation between total polyphenolic content and antioxidant potential from photometric measurements. Prediction of cultivars and vintage from capillary zone electrophoresis fingerprints using artificial neural network. Journal of Chromatography A. Elsevier B.V., 2005, roč. 1081, č. 1, s. 48-54. ISSN 0021-9673. |
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@article{567049,
author = {Pazourek, Jiří and Gajdošová, Dagmar and Spanilá, Miroslava and Farková, Marta and Novotná, Klára and Havel, Josef},
article_number = {1},
keywords = {capillary electrophoresis; wine; artificial neural networks; solid phase extraction},
language = {eng},
issn = {0021-9673},
journal = {Journal of Chromatography A},
title = {Analysis of polyphenols in wines: correlation between total polyphenolic content and antioxidant potential from photometric measurements. Prediction of cultivars and vintage from capillary zone electrophoresis fingerprints using artificial neural network},
volume = {1081},
year = {2005}
}
TY - JOUR
ID - 567049
AU - Pazourek, Jiří - Gajdošová, Dagmar - Spanilá, Miroslava - Farková, Marta - Novotná, Klára - Havel, Josef
PY - 2005
TI - Analysis of polyphenols in wines: correlation between total polyphenolic content and antioxidant potential from photometric measurements. Prediction of cultivars and vintage from capillary zone electrophoresis fingerprints using artificial neural network
JF - Journal of Chromatography A
VL - 1081
IS - 1
SP - 48-54
EP - 48-54
PB - Elsevier B.V.
SN - 00219673
KW - capillary electrophoresis
KW - wine
KW - artificial neural networks
KW - solid phase extraction
N2 - The polyphenols (some of them are also called phytoalexins, flavonols, flavanons, flavanonols, flavons, flavanols, and anthocyanines) are usually marked as potent antioxidants or radical scavengers which assist the body cells against oxidation. Polyphenols in wine are also considered to explain so called French paradox (long life aging and low number of coronary diseases despite of high alcohol and fat consumption). The total polyphenolic content (TPC) and total antioxidant potential (TAP) were determined by photometry and found strongly correlated. This finding suggests that the determination of TAP can be replaced by a more simple procedure of TPC determination. Capillary zone electrophoresis (CZE) with preconcentration by solid phase extraction (SPE) was applied for some polyphenols determination and for obtaining electropherograms of the SPE extracts (fingerprints). From mathematical evaluation of the fingerprints, prediction of cultivars and vintage using artificial neural networks (ANN) was done with more than 90 % correct prediction. The study was performed on a set of 47 samples of young wines (vintage 1999-2002) from south Moravia (Czech Republic) and New South Wales (Australia).
ER -
PAZOUREK, Jiří, Dagmar GAJDOŠOVÁ, Miroslava SPANILÁ, Marta FARKOVÁ, Klára NOVOTNÁ a Josef HAVEL. Analysis of polyphenols in wines: correlation between total polyphenolic content and antioxidant potential from photometric measurements. Prediction of cultivars and vintage from capillary zone electrophoresis fingerprints using artificial neural network. \textit{Journal of Chromatography A}. Elsevier B.V., 2005, roč.~1081, č.~1, s.~48-54. ISSN~0021-9673.
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