Laccase

Laccase is a copper-containing protein enzyme produced by submerged fermentation of Aspergillus oryzae using advanced extraction technology, ultrafiltration, and refining. It is composed of a peptide chain, a sugar ligand, and a copper ion. The copper ion is located at the active site of the enzyme and can coordinate electron transfer in the oxidation reaction and reduce oxygen to water.

Laccase can catalyze a wide range of substrates, including:

Phenolic compounds and their derivatives
Aromatic compounds and their derivatives
Carboxylic acids and their derivatives
Steroid hormones
Metalloorganic compounds
Non-phenolic compounds
The higher the redox potential of laccase, the wider the range of degradable substrates for it.

Laccase is an enzyme that acts on phenol-like compounds and performs one-electron oxidation. This allows it to catalyze the ring cleavage reaction of aromatic compounds. In industry, laccase can be paired with an electron mediator to facilitate electron transfer to a solid electrode wire. It can also be applied to a wide range of industrial, environmental, diagnostic, and synthetic processes, including textile dyeing/textile finishing, wine cork making, teeth whitening, and many others. Laccase can be used to remove polyphenols and oxygen wherever necessary.