Differences in phenolic content and antioxidant activity in yellow and purple-fleshed potatoes grown in the Czech Republic

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F08%3A22054" target="_blank" >RIV/60460709:41210/08:22054 - 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

Differences in phenolic content and antioxidant activity in yellow and purple-fleshed potatoes grown in the Czech Republic

Original language description

The aim of this study was to determine the total phenolic (TP) content and antioxidant activity (AA) in yellow (cvs. Impala, Karin, Dita, Saturna) and purple-fleshed (cvs. Valfi, Violette) potatoes grown in the Czech Republic in 2004 in four locations inprecise field trials. TP content was determined by Folin-Ciocalteau assay and AA by DPPH assay both in freeze-dried tuber matter. Results showed a statistical significant difference in TP content and AA between yellow and purple-fleshed potatoes. Purple-fleshed cultivars showed higher TP content by 60 % than yellow-fleshed cultivars and AA in purple-fleshed cultivars was double high as in yellow-fleshed potatoes. A medium linear correlation between TP and AA was found (r2=0.747). Average TP content inyellow-fleshed cultivars was 2.96 GAE (g of gallic acid per kg dm) and in purple-fleshed cultivars 4.68 GAE was found. Average AA in yellow-fleshed cultivars was 11.26 EAA (mg of ascorbic acid per 100 g dm) and in purple-fleshed cvs. 24.7

Czech name

Rozdíly v obsahu fenolových látek a antioxidační aktivitě v bramborách se žlutou a fialově zbarvenou dužninou pěstovaných v České republice

Czech description

The aim of this study was to determine the total phenolic (TP) content and antioxidant activity (AA) in yellow (cvs. Impala, Karin, Dita, Saturna) and purple-fleshed (cvs. Valfi, Violette) potatoes grown in the Czech Republic in 2004 in four locations inprecise field trials. TP content was determined by Folin-Ciocalteau assay and AA by DPPH assay both in freeze-dried tuber matter. Results showed a statistical significant difference in TP content and AA between yellow and purple-fleshed potatoes. Purple-fleshed cultivars showed higher TP content by 60 % than yellow-fleshed cultivars and AA in purple-fleshed cultivars was double high as in yellow-fleshed potatoes. A medium linear correlation between TP and AA was found (r2=0.747). Average TP content inyellow-fleshed cultivars was 2.96 GAE (g of gallic acid per kg dm) and in purple-fleshed cultivars 4.68 GAE was found. Average AA in yellow-fleshed cultivars was 11.26 EAA (mg of ascorbic acid per 100 g dm) and in purple-fleshed cvs. 24.7

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

<a href="/en/project/1G46058" target="_blank" >1G46058: Enhancement of competition ability of potato growers due to tuber production with higher consumption quality.</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

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

Name of the periodical

Plant, Soil and Environment

ISSN

1214-1178

e-ISSN

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Volume of the periodical

54

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

6

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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