Preparation of low alcohol beverages by reverse osmosis
US4612196A · kind A · utility
30Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1984 |
| Grant date | Sep 16, 1986 |
| Priority date | — |
| Expiry date | Aug 23, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12H3/04
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A traditional flavored fermented alcoholic beverage of low alcohol content is prepared by reverse osmosis with a thin layer composite membrane which has a support layer of polysulfone, a barrier layer of polymer prepared from a polyamine and a polyacyl, and a fiber backing. The membrane has a molecular weight cut-off of less than about 100 for organics and rejects the volatile components which contribute to flavor and aroma and permits about 25 to about 30% alcohol in the beverage to pass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.