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Oxidation of the Flavonolignan Silybin. in situ EPR Evidence of the Spin-Trapped Silybin Radical

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F16%3A00459440" target="_blank" >RIV/61388963:_____/16:00459440 - isvavai.cz</a>

  • Alternative codes found

    RIV/61388971:_____/16:00459440 RIV/61388955:_____/16:00459440 RIV/61989592:15110/16:33161357 RIV/61989592:15310/16:33161357

  • Result on the web

    <a href="http://dx.doi.org/10.1016/j.electacta.2016.04.107" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2016.04.107</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.electacta.2016.04.107" target="_blank" >10.1016/j.electacta.2016.04.107</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Oxidation of the Flavonolignan Silybin. in situ EPR Evidence of the Spin-Trapped Silybin Radical

  • Original language description

    Oxidation of natural flavonolignan silybin in an aprotic environment was studied by electrochemical methods, electron paramagnetic resonance (EPR), UV-vis and IR in situ spectroelectrochemistry and chromatographic techniques. The presence of electrochemically generated silybin radical was proven using in situ EPR spectroelectrochemistry by spin trapping method with 5-tert-butoxycarbonyl-5-methyl-1-pyrroline-N-oxide (BMPO) as a spin trap reagent. The adduct of the silybin radical with BMPO was additionally unambiguously identified by UPLC-ESI-MS/MS. For the first time, the flavonolignan radical was detected upon electrochemical oxidation under such conditions. The one-electron oxidation of silybin leads to a hydroxylated silybin derivative. Its specific redox behaviour can reflect its bioefficiency.

  • 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

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2016

  • 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

    205

  • Issue of the periodical within the volume

    JUL 2016

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    6

  • Pages from-to

    118-123

  • UT code for WoS article

    000376138600016

  • EID of the result in the Scopus database

    2-s2.0-84964495041