Abstract Pre-grown mycelia of Lasiodiplodia theobromae ATCC 28570 transform β-ionone (1) into a large variety of metabolites, by mainly degrading the side-chain of the β-ionone molecule by a C 2-unity. The enzyme system responsible for this degradation is proposed to be an oxygenase, which gives rise to the formation of the main product β-cyclo- homogeraniol (8) in analogy to a Baeyer-Villiger oxidation. Further enzymic actions of ...
