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Kinetic Studies on Radical Scavenging Activity of Kaempferol Decreased by Sn(II) Binding

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اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • الموضوع:
      2020
    • Collection:
      University of Copenhagen: Research / Forskning ved Københavns Universitet
    • نبذة مختصرة :
      Sn(II) binds to kaempferol (HKaem, 3,4 0 ,5,7-tetrahydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one) at the 3,4-site forming [Sn(II)(Kaem) 2 ] complex in ethanol. DPPH • scavenging efficiency of HKaem is dramatically decreased by SnCl 2 coordination due to formation of acid inhibiting deprotonation of HKaem as ligands and thus reduces the radical scavenging activity of the complex via a sequential proton-loss electron transfer (SPLET) mechanism. Moderate decreases in the radical scavenging of HKaem are observed by Sn(CH 3 COO) 2 coordination and by contact between Sn and HKaem, in agreement with the increase in the oxidation potential of the complex compared to HKaem, leading to a decrease in antioxidant efficiency for fruits and vegetables with Sn as package materials.
    • File Description:
      application/pdf
    • الرقم المعرف:
      10.3390/molecules25081975
    • الدخول الالكتروني :
      https://doi.org/10.3390/molecules25081975
      https://curis.ku.dk/portal/da/publications/kinetic-studies-on-radical-scavenging-activity-of-kaempferol-decreased-by-snii-binding(2f18bfa6-6b3a-4ffe-9442-95cc5718bb9c).html
      https://curis.ku.dk/ws/files/242656165/Kinetic_Studies_on_Radical_Scavenging_Activity_of_Kaempferol_Decreased_by_Sn_II_Binding.pdf
    • Rights:
      info:eu-repo/semantics/openAccess
    • الرقم المعرف:
      edsbas.7AFDC864