The effect of clarification on colour, concentration of Anthocyanins and polyphenols in red wine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F07%3A00153695" target="_blank" >RIV/62156489:43510/07:00153695 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The effect of clarification on colour, concentration of Anthocyanins and polyphenols in red wine

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

The effect of clarification on colour, concentration of Anthocyanins and polyphenols in red wine

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

<a href="/cs/project/GA525%2F06%2F1757" target="_blank" >GA525/06/1757: Polyfenolické látky hroznů, révových vín a jejich antimutagenní a antioxidační vlastnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Acta Horticulturae 754

ISBN

978-90-6605-620-6

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

ISHS

Místo vydání

Leuven-Belgium

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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