Process for depolymerization of lignin by laccases
US10059731B2 · kind B2 · utility
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Key dates
| Filing date | Nov 26, 2014 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Nov 26, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y110/03002
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method for depolymerization of lignin includes oxidizing non-phenolic lignin by putting into presence, in at least one solvent, non-phenolic lignin, laccase, redox mediator and a source of oxygen, whereby a mixture including oxidized non-phenolic lignin is obtained, and further includes depolymerization of the oxidized non-phenolic lignin thereby obtained, by adding an oxidizer. The non-phenolic lignin is obtained from phenolic lignin by functionalization of phenol functions of the phenolic lignin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.