Abstract:
PURPOSE: A manufacturing method of a chiral alcohol compound is provided to regenerate the cofactor of an oxidoreductase with the high efficiency of 40% and to manufacture a chiral alcohol compound in a (R)-shape, thereby being with the optical activity of 80% from a ketone compound through an enzymatic reaction. CONSTITUTION: A manufacturing method of a chiral alcohol compound using a photo-biosystem comprises a step of a putting phosphorous-buffering solution, a cofactor of an oxidoreductase, an oxidation and reduction medium, a graphene-porphyrin optical catalyst, a non-polar organic solvent, an alcohol dehydrogenase, and a ketone derivative into a reactor and mixing the material while light is applied into the reactor under an inert gas atmosphere to conduct the reduction reaction of the ketone derivatives, thereby obtaining the chiral alcohol compound. The oxidation reduction medium is at least one selected from methyl viologen, a ruthenium (II) composite, and a rhodium (III) composite.
Abstract:
PURPOSE: A novel graphene photocatalyst absorbing visible light, a regeneration method of oxidoreductase cofactor using the same, and a manufacturing method of formic acid from carbon dioxide with an enzyme reaction using the same are provided to be economic and environment-friendly, to enable the mass production and automation, and to be able to be usefully used in a novel manufacture industry in which artificial photosynthesis which selectively manufactures various compounds by fixing carbon dioxide which is global warming gas. CONSTITUTION: A novel graphene composite is represented by Chemical formula 1. The novel graphene composite is used as a photocatalyst absorbing visible light. A regeneration method of oxidoreductase cofactor comprises a step of inputting a phosphate buffer solution; oxidative oxidoreductase cofactor methyl viologen; at least one oxidation-reduction medium selected from the group consisting of a ruthenium (II) composite and a rhodium (III) composite; and the graphene photocatalyst absorbing visible light represented by Chemical formula 1 in a reactor, and stirring while applying light to produce a reductive oxidoreductase cofactor.
Abstract:
PURPOSE: A novel visible light absorption grapheme-porphyrin photocatalyst and a method for regenerating oxidoreductase cofactors are provided to save energy. CONSTITUTION: A novel graphene-porphyrin complex is denoted by chemical formula 1. A visible light absorptioin grapheme-porphyrin photocatalyst contains the novel grapheme-porphyrin complex as an active ingredient. A method for regenerating oxidorductase cofactors comprises: a step of mixing phosphate buffer, oxidative oxidoreductase cofactor, methyl viologen, luthenium(II) complex or rhodium(III) complex and the photocatalyst in a reactor; and a step of applying light and stirring. The cofactor is NAD+, NADP+, FAD+ or FMN+.