Process for the production of xylose by hydrolysis of hemicellulose by immobilized enzymes
US5932452A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1994 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Aug 12, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y302/01072
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention relates to a process for the hydrolysis of a hemicellulose substrate containing xylo-oligomers with an immobilized enzyme by adjusting the pH of an aqueous solution containing hemicellulose oligosaccharides and optionally ionic components to a value within a weakly acidic range, and contacting the solution with a hemicellulolytic enzyme or mixture of enzymes immobilized on a regenerable weak cation exchange carrier without fixing additives, and recovering xylose from the solution. The invention also concerns an enzyme preparation to be used in the process, comprising a weak cation exchange carrier and a hemicellulolytic enzyme or mixture of enzymes immobilized on said carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.