초록 ▼

Fermented beverages of a reduced alcohol contents are made by causing the fermented beverage having a normal alcohol contents as produced in the fermentation to flow along one face of a dialysis membrane at a pressure differential below 5.0 bar while simultaneously a dialysate liquid which is substa

Fermented beverages of a reduced alcohol contents are made by causing the fermented beverage having a normal alcohol contents as produced in the fermentation to flow along one face of a dialysis membrane at a pressure differential below 5.0 bar while simultaneously a dialysate liquid which is substantially alcohol-free is passed along the other face of the dialysate membrane. An apparatus for carrying out the process comprises a housing in which two separate chambers are provided. Each chamber has separate inlet and outlet ducts. The inlet ducts are connected to separate feeding devices for liquids. Separate regulating devices are arranged for regulating the flow through each of said two chambers and means are provided for regulating the pressure differential between the two chambers.

대표청구항 ▼

A process for producing a fermented beverage having a reduced alcohol content, comprising: (a) producing a fermented beverage of normal ethyl alcohol content, (b) introducing said fermented beverage into a first dialysis chamber, said first chamber being separated from a second dialysis chamber by a

A process for producing a fermented beverage having a reduced alcohol content, comprising: (a) producing a fermented beverage of normal ethyl alcohol content, (b) introducing said fermented beverage into a first dialysis chamber, said first chamber being separated from a second dialysis chamber by a dialysis membrane which is substantially less permeable to sugars in said fermented beverage than to ethyl alcohol, (c) introducing a substantially alcohol-free dialysate liquid, miscible with said fermented beverage, into said second chamber, and (d) causing said fermented beverage and said dialysate liquid to flow along opposite faces of said dialysis membrane at a pressure differential below 5.0 bar, a portion of the ethyl alcohol content of said fermented beverage passing through said dialysis membrane into said dialysate liquid without substantial permeation of said sugars through said membrane.