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Conversion of (-)-Carvone and (+)-Carvone by a Strain of Aspergillus niger
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1974
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BiosynthesisMetabolic PathwaysBiochemical ReductionBiochemistryEngineeringMedicineBiotransformationAntifungal AgentBiochemical EngineeringBiotechnologyMetabolic EngineeringNatural Product BiosynthesisMicrobiologyFungal Cell FactoryPharmacologyAspergillus NigerNatural Product Synthesis
The conversion of (-)-carvone and (+)-carvone by a strain of Aspergillus niger was studied as one of the series of biochemical reduction of terpenes. (-)-Carvone was found to be reduced essentially to (+)-neodihydrocarveol, although (+)-dihydrocarvone and (+)-isodihydrocarvone were also formed in small amounts, whereas (+)-carvone was converted to (-)-isodihydrocarvone, (-)-isodihydrocarveol, (-)-neoisodi-hydrocarveol, (-)-dihydrocarvone, (-)-neodihydrocarveol, and (+)-dihydrocarveol, of which the former three were the major products. The metabolic pathways for (-)-carvone and (+)-earvone by the strain of Aspergillus niger are discussed and the results on microbial and chemical reductions of carvone and dihydrocarvone are summarized.