Contrasting Voltammetric Behavior of Different Forms of Vitamin A in Aprotic Organic Solvents

摘要: Six of the major vitamers and provitamins comprising vitamin A (β-carotene, retinoic acid, retinol, retinyl palmitate, acetate, retinal) were examined using voltammetric controlled potential electrolysis techniques in aprotic organic solvents acetonitrile dichloromethane at glassy carbon platinum electrodes. All compounds underwent oxidation reduction processes displayed a number similarities differences terms redox chemical reversibility responses. The electrochemical properties strongly influenced by functional groups on unsaturated phytyl chains (carboxylic alcohol, ester, or aldehyde groups), not only fully conjugated hydrocarbon unit which is common to all forms A. reduced potentials between approximately −1.7 −2.6 vs (Fc/Fc+)/V (Fc = ferrocene) oxidized +0.2 +0.7 (Fc/F...