Process for separation of beta-acids from extract containing alpha-acids and beta-acids
US4590296A · kind A · utility
30Cited by
11References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Jan 25, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12C9/025
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
Beta-acids are separated from alpha-acids in a hop extract without using organic solvents by bubbling CO.sub.2 through an aqueous hop extract having a pH of about 9.6 to about 13 to lower the pH to about 8.5 to about 9.5 to precipitate the beta-acids and leave the alpha-acids in the extract.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.