Interaction of Plant Polyphenols with Iron Ions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14110%2F04%3A00011718" target="_blank" >RIV/00216224:14110/04:00011718 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Interaction of Plant Polyphenols with Iron Ions
Original language description
Formation of free radicals is closely related to the redox state of iron, e.g. ferrous ions are responsible for hydroxyl radical formation by Fenton reaction. Numerous authors have investigated the free radical scavenging activity of plant polyphenols, and several reports have been made to elucidated iron or copper ions chelating ability of polyphenols, although the interaction of plant polyphenols with transient metal ions has not been fully resolved. In this study we investigated the formation of Fe2+and Fe3+ complexes with naturally occurring polyphenolic compounds above all phenolic acids by spectrophotometric measurement at pH 7.4. The stability of complexes was evaluated after addition of EDTA and ascorbic acid. Influence of ligands on Fe2+ autooxidation and Fe3+ reducing activity of polyphenols was assessed by determination of Fe2+ concentration using ferrozine. Interaction of polyphenolic compounds with iron was compared with that of ascorbic acid and cysteine. Both ascorbic a
Czech name
Interakce rostlinných polyfenolů s ionty železa
Czech description
Vznik volných radikálů je těsně spojen s redoxním stavem železa, např. železnaté ionty jsou zodpovědné za vznik hydroxylových radikálů Fentonovou reakcí.
Classification
Type
D - Article in proceedings
CEP classification
CE - Biochemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA303%2F00%2FD062" target="_blank" >GA303/00/D062: Bioavailability and mechanism of antioxidant activity of phenolic acids and lignans</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Vitamins 2004 - Targeted Nutritional Therapy
ISBN
80-7194-644-3
ISSN
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e-ISSN
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Number of pages
1
Pages from-to
168-168
Publisher name
Univerzita Pardubice
Place of publication
Pardubice
Event location
Pardubice
Event date
Sep 13, 2004
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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