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ORIGINAL ARTICLE
Year : 2018  |  Volume : 10  |  Issue : 2  |  Page : 60-65

Electrochemical oxidability of antioxidants: Synergism and antagonism in mixes


1 Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, Russia
2 Tomsk Polytechnic University, Tomsk, Russia; Mental Health Research Institute, Tomsk National Research Medical Center, Tomsk, Russia
3 Tomsk Polytechnic University, Tomsk, Russia

Correspondence Address:
Dr. Evgenii Plotnikov
Tomsk Polytechnic University, 634050, Tomsk, Lenin Avenue, 30, Tomsk
Russia
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/JPBS.JPBS_203_17

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Aims: To investigate electrochemical oxidability of antioxidants to reveal synergistic and antagonistic effects in mixes. Materials and Methods: Electrochemical oxidability of some widely used antioxidants, including uric acid, glutathione, trolox, ascorbic acid, gallic acid, Mexidol, and potassium fenozan, was investigated by the amperometric approach. Results: All obtained electrochemical oxidability values correlate well with antioxidant activity parameters of the same compounds measured by other methods. The measurements of the electrochemical oxidability for binary mixes of substances were tested to reveal any synergistic actions. The experimental results and calculated values overlap for various combinations of tested mixes. It testifies to the absence of interaction between them (both synergism and antagonism) in the oxidation process. Conclusions: The constants of oxidation were defined for different antioxidants and mixes by amperometric approach. Most mixes of probed compounds revealed absence of interaction between them in oxidation process. In some cases (mainly with glutathione and ascorbic acid), antagonism takes place, deteriorating effects of their joint application. Apparently, a partial reduction of glutathione by ascorbic acid leads to excess of the measured value over calculated value.


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