Enzyme immobilization on a water-insoluble amino group-containing carrier
US4888285A · kind A · utility
5Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Dec 7, 1987 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Dec 7, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N11/14
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
An immobilized enzyme having high activity and stability is obtained by immobilizing an enzyme on a water-insoluble amino group-containing carrier by use of a polyfunctional cross-linking agent such as glutaraldehyde in the presence of a phenolic carboxylic acid having one or more hydroxyl groups such as tannic acid. In addition to the phenolic carboxylic acid, a basic polysaccharide such as chitosan may also be present. The amino group-containing carrier may be aminated silica gel, aminated porous glass, aminated zeolite, or water insoluble crosslinked chitosen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.