<prompt> The oxidation of retinol produces:-RetinineBeta-caroteneRetinalRetinoic acid  <response>: Retinal vitamin A aldehyde: This is an aldehyde form obtained by the oxidation of retinol. Retinal and retinol are interconvertible.Key Concept:Oxidation of retinol produces retinalOxidation of retinal produces retinoic acid.Ref : Textbook of Biochemistry, Satyanarayana 