Voltammetry of total lipids with paramagnetic properties from marine organisms

A variant of the method of three-electrode differential pulse voltammetry for use in studies of antioxidants in natural lipids is presented and substantiated. Voltammetric analysis of the total lipids of the gonads of the Black Sea mussel Mytilus galloprovincialis L. and the liver of the Black Sea katran Squalus acanthias showed that they have one similar anodic wave with an oxidation potential of +0.60 V. The difference between the studied aquatic organisms is associated with the registration of one more anodic wave with an oxidation potential of + 1.20 V in the lipids of the mussel gonads and +0.90 V in the lipids of the liver of katran. It was suggested that the first anodic wave with an oxidation peak potential of +0.60 V in the lipids of the gonads of the mussel and liver of katran may belong to alpha-tocopherol. Probably, it is alpha-tocopherol that is involved in the formation of a molecular complex with paramagnetic properties found in the total lipids of the gonads of the Black Sea mussel Mytilus galloprovincialis L. and the liver of the Black Sea katran Squalus acanthias.