Decaffeination of vegetable material
US4031251A · kind A · utility
17Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1975 |
| Grant date | Jun 21, 1977 |
| Priority date | — |
| Expiry date | Jan 8, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23F5/223
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A process is disclosed wherein the decaffeination of aqueous extracts of vegetable material with non-ionic, hydrophobic resin may be performed in a continuous manner. In accordance therewith, extract is contacted with resin to effect decaffeination, exhausted resin containing adherent caffeine and non-caffeine water solubles is bleached with water to remove the caffeine, the caffeine-free resin is then washed with a solution comprising water and an organic solvent to elute non-caffeine water solubles and then the resin is rinsed with water to permit its reuse in the further decaffeination of vegetable material extracts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.