About: Study of electrochemical oxidation of cyanidin glycosides by online combination of electrochemistry with electrospray ionization tandem mass spectrometry

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About: Study of electrochemical oxidation of cyanidin glycosides by online combination of electrochemistry with electrospray ionization tandem mass spectrometry Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Electrochemistry coupled with mass spectrometry (EC-MS) is a promising analytical tool for the online study of oxidation processes of anthocyanins. Two cyanidin glycosides, cyanidin-3-galactoside (ideain) and cyanidin-3,5-diglucoside (cyanin), were subjected to electrochemical oxidation and subsequent online mass spectrometric identification of the formed products. Application of relatively low working potentials (around 100 mV vs. Pd/H2) using a porous graphite coulometric electrode yielded detectable oxidation products. As determined by hydrodynamic voltammetry, the monoglycosylated analogue undergoes anodic oxidation easier than the diglycosylated one. As a first step of the electrochemically induced oxidation, incorporation of a hydroxyl group was observed for both glycosides. Besides, an oxidative condensation of two anthocyanin molecules was observed. The proposed oxidative condensation was further confirmed by consecutive fragmentation (i.e., collection of MS2, MS3 , and MS4 spectra) in which corresponding subsequent losses of the sugar moiety were observed. Electrochemistry coupled with mass spectrometry (EC-MS) is a promising analytical tool for the online study of oxidation processes of anthocyanins. Two cyanidin glycosides, cyanidin-3-galactoside (ideain) and cyanidin-3,5-diglucoside (cyanin), were subjected to electrochemical oxidation and subsequent online mass spectrometric identification of the formed products. Application of relatively low working potentials (around 100 mV vs. Pd/H2) using a porous graphite coulometric electrode yielded detectable oxidation products. As determined by hydrodynamic voltammetry, the monoglycosylated analogue undergoes anodic oxidation easier than the diglycosylated one. As a first step of the electrochemically induced oxidation, incorporation of a hydroxyl group was observed for both glycosides. Besides, an oxidative condensation of two anthocyanin molecules was observed. The proposed oxidative condensation was further confirmed by consecutive fragmentation (i.e., collection of MS2, MS3 , and MS4 spectra) in which corresponding subsequent losses of the sugar moiety were observed. (en)
Title	Study of electrochemical oxidation of cyanidin glycosides by online combination of electrochemistry with electrospray ionization tandem mass spectrometry Study of electrochemical oxidation of cyanidin glycosides by online combination of electrochemistry with electrospray ionization tandem mass spectrometry (en)
skos:prefLabel	Study of electrochemical oxidation of cyanidin glycosides by online combination of electrochemistry with electrospray ionization tandem mass spectrometry Study of electrochemical oxidation of cyanidin glycosides by online combination of electrochemistry with electrospray ionization tandem mass spectrometry (en)
skos:notation	RIV/61989592:15310/11:33117306!RIV12-MSM-15310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(ED2.1.00/03.0058), P(GAP206/10/0625), S, Z(MSM6198959216)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Skopalová, Jana Lemr, Karel Myjavcová, Renata Bednář, Petr Jirovský, David Bartošová, Zdenka Tvrdoňová, Michaela
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	Univerzita Palackého v Olomouci / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	233059
http://linked.open...ai/riv/idVysledku	RIV/61989592:15310/11:33117306
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Cyanidin, Anthocyanin, Electrochemistry, Oxidations, Mass spectrometry (en)
http://linked.open.../riv/klicoveSlovo	Electrochemistry Cyanidin Oxidations Mass spectrometry Anthocyanin
http://linked.open...odStatuVydavatele	DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV	[54E976D54A82]
http://linked.open...i/riv/nazevZdroje	Monatshefte für Chemie
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	7 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Regional Centre of Advanced Technologies and Materials Condensed anthocyanins - analysis, preparation, (bio)transformation and potential of use
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	142
http://linked.open...iv/tvurceVysledku	Bednář, Petr Lemr, Karel Myjavcová, Renata Skopalová, Jana Bartošová, Zdenka Jirovský, David Tvrdoňová, Michaela
http://linked.open...ain/vavai/riv/wos	000297146300002
http://linked.open...n/vavai/riv/zamer	Modulation of signalling and regulatory pathways in normal and cancer cells
issn	0026-9247
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/s00706-011-0650-z
http://localhost/t...ganizacniJednotka	15310

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