Method for lignin depolymerisation
US10626553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2017 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Jul 21, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C11/0007
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention is in the field of delignifying and/or bleaching of pulp, more in particular wood pulp. Such a process is useful in paper production. More in particular, the method relates to the use of an enzyme for delignification and/or bleaching, more in particular a bacterial laccase. Even more in particular, it provides a method for delignifying and/or bleaching of a pulp, comprising an enzymatic treatment step wherein lignin-containing pulp and a laccase are reacted at alkaline pH, wherein the laccase has an amino acid sequence according to SEQ ID NO: 1 or an amino acid sequence at least 90% identical to SEQ ID NO: 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.