Process for preparing a soluble tea product
US3950553A · kind A · utility
15Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Jun 10, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23F3/16
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
This invention relates to an improved process for the preparation of cold-water soluble tea products wherein tea tannins which have been partially oxidized to improve their solubility are contacted with native tea tannins. The admixture of oxidized and native tannins is permitted to equilibrate until the desired final color is obtained, and thereafter the unoxidized tannins are precipitated so as to leave a clear aqueous solution useful for the preparation of instant tea products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.