Method for obtaining low molecular weight lignin
US12215119B2 · kind B2 · utility
0Cited by
0References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2020 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Mar 18, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C5/005
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention relates to obtaining lignin preparations of desirable molecular size and properties. It describes a method of de-polymerizing lignin of high molecular weight into low molecular weight lignin. More in particular, the invention provides a method for producing lignin with a low molecular weight wherein high molecular weight lignin is contacted with an alkaline laccase at alkaline pH in a reaction vessel and wherein the lignin with a molecular weight below 2 kDa is selectively removed from the reaction vessel during the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.