Relationship between antiradical activity, polyphenolic antioxidants and free trans-resveratrol in grapes (Vitis vinifera L.)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F05%3A10728" target="_blank" >RIV/60460709:41210/05:10728 - 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

Relationship between antiradical activity, polyphenolic antioxidants and free trans-resveratrol in grapes (Vitis vinifera L.)

Original language description

Contents of polyphenolic antioxidants as total polyphenols (TP), free trans-resveratrol (R) and their antiradical activity (ARA) in grape skins and seeds of vine varieties and TP in grape musts originated from 5 wine-growing Czech areas from the harvest2003 were determined. 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 the 1,1-diphenyl-2-picrylhydrazyl stable free radical (DPPH×). Obtained results were evaluated statistically by Statistica programme. TP did not show statistically significant differences among analysed varieties (p < 0.05) in grape seeds and skins,but regarding wine-growing regions a significant difference in TP (p < 0.10) in grape skins was found. ARA (p<0.05) was not significant both, for grape seeds as well as grape skins in relation to wine-growing regions and varieties. The h

Czech name

Vztah mezi antiradikálovou aktivitou, polyfenolickými antioxidanty a volným trans-resveratrolem v hrozech révy vinné (Vitis vinifera L.)

Czech description

Contents of polyphenolic antioxidants as total polyphenols (TP), free trans-resveratrol (R) and their antiradical activity (ARA) in grape skins and seeds of vine varieties and TP in grape musts originated from 5 wine-growing Czech areas from the harvest2003 were determined. 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 the 1,1-diphenyl-2-picrylhydrazyl stable free radical (DPPH×). Obtained results were evaluated statistically by Statistica programme. TP did not show statistically significant differences among analysed varieties (p < 0.05) in grape seeds and skins,but regarding wine-growing regions a significant difference in TP (p < 0.10) in grape skins was found. ARA (p<0.05) was not significant both, for grape seeds as well as grape skins in relation to wine-growing regions and varieties. The h

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GM - Food industry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

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

Name of the periodical

Horticultural Science

ISSN

0862-867X

e-ISSN

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Volume of the periodical

32

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

154-162

UT code for WoS article

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EID of the result in the Scopus database

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