The effect of clarification on colour, concentration of anthocyanins and polyphenols in the red wines

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F07%3A00116292" target="_blank" >RIV/62156489:43510/07:00116292 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The effect of clarification on colour, concentration of anthocyanins and polyphenols in the red wines
Original language description
The estimated concentration of total polyphenols was dependent on the method used but the percentages of recorded losses caused by the clarification were equivalent in both cases. The PVPP caused the highest total losses of polyphenols. The highest losses caused by this clarifying agent were recorded in case of resveratrol. An opposite tendency, however, was observed in case of catechin and epicatechin. The clarification showed only a minimum effect on the concentration of gallic acid. The concentrations of catechin, epicatechin, total anthocyanins and the colour parameters of red wines were influenced at most by the application of egg white. An increasing share of polymeric forms of anthocyanins in the final colouration of red wines was observed afterthe application of all clarifying agents.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GM - Food industry
OECD FORD branch
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Project
<a href="/en/project/GA525%2F06%2F1757" target="_blank" >GA525/06/1757: Polyphenolic compounds of grapes, wines and their antimutagenic and antioxidative properties</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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