Antiradikálová aktivita a polyfenolické antioxidanty v hroznech (Vitis vinifera L.) v českém vinařském regionu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F05%3A10175" target="_blank" >RIV/60460709:41210/05:10175 - 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

Antiradical activity and polyphenolic antioxidants in grapes (Vitis vinifera L.) in the Czech wine-growing area

Popis výsledku v původním jazyce

Contents of polyphenolic antioxidants as total polyphenols (TP), free trans-resveratrol (R) and their antiradical activity (ARA) in grape musts, grape skins and seeds of vine varieties originated from 5 wine-growing Czech areas from the harvest 2003 weredetermined. Polyphenolic antioxidants of grape are very effective in preventing cancer and cardiovascular diseases. TP content was determined spectrophotometrically with phenol Folin-Ciocalteau´s reagent, R content by HPLC method, and ARA employing the1,1-diphenyl-2-picrylhydrazyl stable free radical (DPPH×). Obtained results were evaluated statistically by Statgraphic and Anova programmes. TP showed statistically significant differences among analysed varieties (p < 0.05) and wine-growing areas (p <0.05). The highest TP contents were found in grape seeds (536.6 mg/g DM), whereas R contents were higher in the skins (av. 166.818.10-5 mg/g DM). Blue vine varieties have 1.89 times higher TP content in grape skins and 1.35 times higher i

Název v anglickém jazyce

Antiradical activity and polyphenolic antioxidants in grapes (Vitis vinifera L.) in the Czech wine-growing area

Popis výsledku anglicky

Contents of polyphenolic antioxidants as total polyphenols (TP), free trans-resveratrol (R) and their antiradical activity (ARA) in grape musts, grape skins and seeds of vine varieties originated from 5 wine-growing Czech areas from the harvest 2003 weredetermined. Polyphenolic antioxidants of grape are very effective in preventing cancer and cardiovascular diseases. TP content was determined spectrophotometrically with phenol Folin-Ciocalteau´s reagent, R content by HPLC method, and ARA employing the1,1-diphenyl-2-picrylhydrazyl stable free radical (DPPH×). Obtained results were evaluated statistically by Statgraphic and Anova programmes. TP showed statistically significant differences among analysed varieties (p < 0.05) and wine-growing areas (p <0.05). The highest TP contents were found in grape seeds (536.6 mg/g DM), whereas R contents were higher in the skins (av. 166.818.10-5 mg/g DM). Blue vine varieties have 1.89 times higher TP content in grape skins and 1.35 times higher i

Druh

D - Stať ve sborníku

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

<a href="/cs/project/GA525%2F02%2F0301" target="_blank" >GA525/02/0301: Odezva rostlin na abiotický stres vybranými těžkými kovy</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název statě ve sborníku

Vitamins 2005 Targeted Nutritional Therapy. The Abstract Book.

ISBN

80-7194-748-2

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

72-75

Název nakladatele

Univerzita Pardubice

Místo vydání

Pardubice

Místo konání akce

Pardubice

Datum konání akce

14. 9. 2005

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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