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The oxidation of luteolin, the natural flavonoid dye

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F13%3A00399236" target="_blank" >RIV/61388963:_____/13:00399236 - isvavai.cz</a>

  • Alternative codes found

    RIV/61388955:_____/13:00399236

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.electacta.2013.06.136" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2013.06.136</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.electacta.2013.06.136" target="_blank" >10.1016/j.electacta.2013.06.136</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The oxidation of luteolin, the natural flavonoid dye

  • Original language description

    The oxidation of natural flavonoid luteolin in aqueous solution is studied by electrochemical methods, electron paramagnetic resonance (EPR), spectroelectrochemistry and separation techniques HPLC-DAD and HPLC?MS/MS. The number of electrons involved in the oxidation of luteolin depends on the presence of its dissociation forms in solution. The study explains the differences in the number of electrons presented in the literature. The overall one electron oxidation mechanism of luteolin in alkaline solution is explained by the comproportionation reaction of resulting quinone, despite the fact that quinone is formed by two electron oxidation. Then a hydroxylation takes place. The EPR spectroelectrochemical study of the semiquinone radical anion formationas well as of the reaction steps following the electron transfer during the oxidation is presented. The novelty of this contribution consists in the additional temperature controlled semi-quantitative in situ EPR spectroelectrochemical ex

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CG - Electrochemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA203%2F09%2F1607" target="_blank" >GA203/09/1607: Electrochemistry of natural pigments and their host-guest complexes.</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2013

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Electrochimica acta

  • ISSN

    0013-4686

  • e-ISSN

  • Volume of the periodical

    110

  • Issue of the periodical within the volume

    NOV 2013

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    9

  • Pages from-to

    646-654

  • UT code for WoS article

    000329530300083

  • EID of the result in the Scopus database