About: Influence of dietary phenolic acids on redox status of iron: Ferrous iron autoxidation and ferric iron reduction

Facets (new session)
Description
Metadata
Settings
- owl:sameAs
- Inference Rule:

About: Influence of dietary phenolic acids on redox status of iron: Ferrous iron autoxidation and ferric iron reduction Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	All phenolic acids bearing 3,4-dihydroxy (catechol) or 3,4,5-trihydroxy (galloyl) moiety formed chelates with ferric iron and significantly increased the rate of Fe2+ autoxidation. The carboxylate group and catechol substitution instead of galloyl moiety facilitated the ferrous ion oxidation more effectively. Caffeic acid and protocatechuic acid, the strongest accelerators of Fe2+ autoxidation, were able to facilitate autoxidation at concentrations lower than 1% of the initial amount of Fe2+. Therefore chelates of these catecholic acids with iron displayed ferroxidase-like activity. Conversely, when we started from ferric ions, catechols partially formed ferrous ions in the presence of ferrozine. Thus, catecholic acids formed stable chelates with iron, in which ferric ion is the dominant species, but the redox cycling of iron between Fe2+ and Fe3+ in chelates probably plays a crucial role in the catalysis of ferrous iron autoxidation. All phenolic acids bearing 3,4-dihydroxy (catechol) or 3,4,5-trihydroxy (galloyl) moiety formed chelates with ferric iron and significantly increased the rate of Fe2+ autoxidation. The carboxylate group and catechol substitution instead of galloyl moiety facilitated the ferrous ion oxidation more effectively. Caffeic acid and protocatechuic acid, the strongest accelerators of Fe2+ autoxidation, were able to facilitate autoxidation at concentrations lower than 1% of the initial amount of Fe2+. Therefore chelates of these catecholic acids with iron displayed ferroxidase-like activity. Conversely, when we started from ferric ions, catechols partially formed ferrous ions in the presence of ferrozine. Thus, catecholic acids formed stable chelates with iron, in which ferric ion is the dominant species, but the redox cycling of iron between Fe2+ and Fe3+ in chelates probably plays a crucial role in the catalysis of ferrous iron autoxidation. (en)
Title	Influence of dietary phenolic acids on redox status of iron: Ferrous iron autoxidation and ferric iron reduction Influence of dietary phenolic acids on redox status of iron: Ferrous iron autoxidation and ferric iron reduction (en)
skos:prefLabel	Influence of dietary phenolic acids on redox status of iron: Ferrous iron autoxidation and ferric iron reduction Influence of dietary phenolic acids on redox status of iron: Ferrous iron autoxidation and ferric iron reduction (en)
skos:notation	RIV/00216224:14110/08:00024823!RIV10-GA0-14110___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA303/00/D062), P(GD301/03/H005)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Slaninová, Iva Adámková, Lenka Chvátalová, Kateřina Slanina, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Lékařská fakulta
http://linked.open...dnocenehoVysledku	372083
http://linked.open...ai/riv/idVysledku	RIV/00216224:14110/08:00024823
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Iron; Phenolic acids; Polyphenols; Ferrous ion; Ferric ion; Autoxidation; Ferric iron reduction; Metal chelation; Ferroxidase-like activity (en)
http://linked.open.../riv/klicoveSlovo	Autoxidation Iron Ferric iron reduction Polyphenols Phenolic acids Ferric ion Ferrous ion Ferroxidase-like activity Metal chelation
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[F4941A77C6E9]
http://linked.open...i/riv/nazevZdroje	Food Chemistry
http://linked.open...in/vavai/riv/obor	GM
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Molecular and cell biology in biomedicine Bioavailability and mechanism of antioxidant activity of phenolic acids and lignans
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	106
http://linked.open...iv/tvurceVysledku	Slaninová, Iva Adámková, Lenka Slanina, Jiří Chvátalová, Kateřina
http://linked.open...ain/vavai/riv/wos	00025003840
issn	0308-8146
number of pages	11 (xsd:int)
http://localhost/t...ganizacniJednotka	14110

Faceted Search & Find service v1.16.118 as of Jun 21 2024

Alternative Linked Data Documents: ODE Content Formats:

RDF

ODATA

Microdata

About

OpenLink Virtuoso version 07.20.3240 as of Jun 21 2024, on Linux (x86_64-pc-linux-gnu), Single-Server Edition (126 GB total memory, 58 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2024 OpenLink Software