Carrageeman-immobilized esterase
US5262313A · kind A · utility
6Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1991 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Jun 14, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N11/04
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Carrageenan-immobilized enzymes are prepared that are stable and retain high activity toward substrates when used in substantially water-immiscible organic solvents. The carrageenan-immobilized enzymes are preferably prepared by introducing droplets of an enzyme/carrageenan solution into a chilled alcohol saturated with a potassium salt and hardening the droplets in the alcohol. The alcohol is selected from n-butanol, benzyl alcohol, crotyl alcohol, n-propanol, isopropanol and sec-butanol. Reactions catalyzed by a .kappa.-carrageenan-immobilized esterase include steroselective transesterifications and hydrolysis reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.