Method for recovering xylose isomerase
US3941655A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1974 |
| Grant date | Mar 2, 1976 |
| Priority date | — |
| Expiry date | Oct 10, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/886
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Levulose-bearing syrups are produced by passing a dextrose solution through a column or bed of an immobilized dextrose isomerase enzyme preparation. The useful life of the enzyme preparation is extended by conducting the isomerization initially at a low operating temperature, then increasing the temperature of operation after an initial decrease in enzyme activity has been observed. Also disclosed is an improved immobilized xylose isomerase enzyme preparation which is prepared by contacting a solution of xylose isomerase with particulate basic magnesium carbonate. The novel immobilized enzyme preparation is useful in enzymatically isomerizing dextrose solutions to levulose-bearing syrups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.