Tea extract preparation
US5820901A · kind A · utility
6Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Dec 4, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y301/0102
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Tannase covalently immobilized by its glycoside part on an insoluble support. Process for the preparation of a tea extract, in which an aqueous extract of tea leaves is prepared, and the extract is treated at a temperature of 20-65.degree. C. with tannases whose glycoside part is covalently immobilized on an insoluble support, in particular in a tank which contains immobilized tannases in suspension, or in a reactor which includes a fixed bed or a fluidized bed of immobilized tannases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.