About: The influence of the host–guest interaction on the oxidation of natural flavonoid dyes

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About: The influence of the host–guest interaction on the oxidation of natural flavonoid dyes 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)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The influence of the molecular cavity protection on degradation processes of bioorganic compounds quercetin and luteolin used as the original dyes in old tapestries was studied. The degradation processes were studied by electrochemical methods in aqueous media. The products of the exhaustive electrolysis were separated and identified by GC-MS analysis. Cyclic voltammetry characteristics indicate that the inclusion complex is formed. The inclusion affects the redox potentials of both oxidation waves related to the different dissociation forms of the flavonoid molecule. It was shown that decomposition products formed by the oxidation of quercetin are stabilized in the cavity of β-cyclodextrin, including the main oxidation product 2(3,4-dihydroxybenzoyl)-2,4,6-trihydroxybenzofuran-3(2H)-one. The formation of the 1:1 inclusion complex of luteolin with β-cyclodextrin is supported by the enhancement of fluorescence intensity. The influence of the molecular cavity protection on degradation processes of bioorganic compounds quercetin and luteolin used as the original dyes in old tapestries was studied. The degradation processes were studied by electrochemical methods in aqueous media. The products of the exhaustive electrolysis were separated and identified by GC-MS analysis. Cyclic voltammetry characteristics indicate that the inclusion complex is formed. The inclusion affects the redox potentials of both oxidation waves related to the different dissociation forms of the flavonoid molecule. It was shown that decomposition products formed by the oxidation of quercetin are stabilized in the cavity of β-cyclodextrin, including the main oxidation product 2(3,4-dihydroxybenzoyl)-2,4,6-trihydroxybenzofuran-3(2H)-one. The formation of the 1:1 inclusion complex of luteolin with β-cyclodextrin is supported by the enhancement of fluorescence intensity. (en)
Title	The influence of the host–guest interaction on the oxidation of natural flavonoid dyes The influence of the host–guest interaction on the oxidation of natural flavonoid dyes (en)
skos:prefLabel	The influence of the host–guest interaction on the oxidation of natural flavonoid dyes The influence of the host–guest interaction on the oxidation of natural flavonoid dyes (en)
skos:notation	RIV/61388955:_____/11:00370911!RIV12-GA0-61388955
http://linked.open...avai/predkladatel	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/08/1157), P(GA203/09/1607), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Ramešová, Šárka Sokolová, Romana Hromadová, Magdaléna Gál, Miroslav Kolivoška, Viliam
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	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	204633
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/11:00370911
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	oxidation; inclusion complexes; flavonoids (en)
http://linked.open.../riv/klicoveSlovo	flavonoids oxidation inclusion complexes
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[61AB9568557B]
http://linked.open...i/riv/nazevZdroje	Collection of Czechoslovak Chemical Communications
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Electrochemistry of natural pigments and their host-guest complexes. Tailoring the lock and key motifs in novel low-dimensional structures at electrified interface
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	76
http://linked.open...iv/tvurceVysledku	Gál, Miroslav Hromadová, Magdaléna Kolivoška, Viliam Sokolová, Romana Ramešová, Šárka Colombini, M. P. Degano, I.
http://linked.open...ain/vavai/riv/wos	000299816100016
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0010-0765
number of pages	17 (xsd:int)
http://bibframe.org/vocab/doi	10.1135/cccc2011106
is http://linked.open...avai/riv/vysledek of	The influence of the host–guest interaction on the oxidation of natural flavonoid dyes The influence of the host–guest interaction on the oxidation of natural flavonoid dyes

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