Aroma recovery from the thermal hydrolysis of spent grounds
US4900575A · kind A · utility
16Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1989 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Apr 17, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23F5/486
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process to recover beneficial coffee volatiles such as diacetyl and acetaldehyde from an aroma stream generated by the thermal hydrolysis of spent grounds. The aroma stream is passed over a bed of a non-polar microporous adsorbent and effluent is collected until breakthrough of furfural is detected. The invention also relates to the composition of the recovered/purified coffee aroma and to soluble coffee products containing the coffee aroma.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.