Abstract: Provided are a lignin degradation catalyst that exhibits excellent lignin degradability and that is readily separated after degradation reaction, a method for producing the catalyst, and a method for degrading lignin. The lignin degradation catalyst according to the present invention contains a substrate and at least one metal compound immobilized on the substrate, wherein the at least one metal compound contains a copper compound. The method for producing a lignin degradation catalyst according to the present invention includes the step of brining a porous copper substrate into contact with a solution containing an oxidant to obtain a substrate having a copper compound immobilized thereon, or the step of subjecting a porous copper substrate to electro-oxidation to obtain a substrate having a copper compound immobilized thereon.

Abstract: The objective of the present invention is to provide a microorganism that makes it possible to produce muconic acid from a lignin-derived aromatic compound with sufficient economic efficiency and without depending on the type of lignin, and a method of producing muconic acid using the microorganism. The objective can be achieved by a transformed microorganism wherein the host microorganism is a microorganism of the genus Pseudomonas that has pcaH gene, pcaG gene, catA gene, and catB gene on its chromosome, and that can assimilate an aromatic compound derived from syringyl lignin; and wherein the transformed microorganism lacks at least one gene selected from the group consisting of pcaH gene and pcaG gene on its chromosome, lacks catB gene on its chromosome, and expresses aroY gene inserted; and a method of producing muconic acid using the transformed microorganism and the like.

Abstract: The objective of the present invention is to provide a microorganism that makes it possible to produce muconic acid from a lignin-derived aromatic compound with sufficient economic efficiency and without depending on the type of lignin, and a method of producing muconic acid using the microorganism. The objective can be achieved by a transformed microorganism wherein the host microorganism is a microorganism of the genus Pseudomonas that has pcaH gene, pcaG gene, catA gene, and catB gene on its chromosome, and that can assimilate an aromatic compound derived from syringyl lignin; and wherein the transformed microorganism lacks at least one gene selected from the group consisting of pcaH gene and pcaG gene on its chromosome, lacks catB gene on its chromosome, and expresses aroY gene inserted; and a method of producing muconic acid using the transformed microorganism and the like.

Abstract: Yeast includes an introduced gene coding a Homo sapiens- or frog-derived L-lactate dehydrogenase. It is possible to produce lactic acid, which has a variety of applications, efficiently and more cost-effectively by using the yeast and the method of producing lactic acid by using the yeast.

Abstract: Yeast includes an introduced gene coding a Homo sapiens- or frog-derived L-lactate dehydrogenase. It is possible to produce lactic acid, which has a variety of applications, efficiently and more cost-effectively by using the yeast and the method of producing lactic acid by using the yeast.