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Differences in Oxidation Mechanism of Selected Bioflavonoids, UV-Vis and IR Spectroelectrochemical Study
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SYSNO ASEP 0490089 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Differences in Oxidation Mechanism of Selected Bioflavonoids, UV-Vis and IR Spectroelectrochemical Study Author(s) Sokolová, Romana (UFCH-W) RID, ORCID, SAI
Fiedler, Jan (UFCH-W) RID, ORCID
Ramešová, Šárka (UFCH-W) RID
Kocábová, Jana (UFCH-W) RID
Degano, I. (IT)
Quinto, A. (IT)
Křen, Vladimír (MBU-M) RID, ORCIDSource Title XXXVIII. Moderní elektrochemické metody. Sborník přednášek. - Ústí nad Labem : Best Servis, 2018 / Navrátil T. ; Fojta M. ; Schwarzová K. - ISBN 978-80-905221-6-9 Pages s. 212-216 Number of pages 5 s. Publication form Print - P Action Moderní elektrochemické metody /38./ Event date 21.05.2018 - 25.05.2018 VEvent location Jetřichovice Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords oxidation ; flavonoids ; decomposition Subject RIV CG - Electrochemistry OECD category Analytical chemistry Subject RIV - cooperation Institute of Microbiology - Biophysics R&D Projects GA18-00150S GA ČR - Czech Science Foundation (CSF) GA17-03868S GA ČR - Czech Science Foundation (CSF) Institutional support UFCH-W - RVO:61388955 ; MBU-M - RVO:61388971 UT WOS 000464596500048 Annotation The oxidation of selected bioflavonoids (quercetin, rhamnazin, fisetin, rhamnetin, taxifolin, luteolin, silybin and 2,3-dehydrosilybin) was studied by electrochemical and spectroscopic methods. The oxidation mechanism and formation of oxidation products depends on the chemical structure. Only small differences in the chemical structure of compounds with flavone, flavanone and flavonol motif result in extremely variable oxidation pathways and products. Products of oxidation and further decomposition were determined by HPLC-ESIMS/MS and HPLC-DAD. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2020
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