Production of low-ethanol beverage by membrane extraction

Details Production of low-ethanol beverage by membrane extraction Production of low-ethanol beverage by membrane extraction

1989-07-19

1991-05-07

Sever, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Cylindrical membrane

55158, 21032189, B01D 6136, B01D 6302

Patent

active

050134361

ABSTRACT:
Low-ethanol wines, beer, distilled spirits, and other alcoholic beverages are produced by treating ordinary alcoholic beverages with novel membrane extraction methods. Semipermeable membranes and gas-phase extraction fluids are employed to selectively extract ethanol into the gas-phase, while leaving substantially intact the complement of other organic constituents that contribute to the color, aroma, and taste of the beverage. Methods are provided for balancing the water activity of the gas-phase extraction fluid about equal to that in the beverage, so as to inhibit water transport across the membrane independent of the ethanol/water selectivity of the membrane.

REFERENCES:
patent: 4778688 (1988-10-01), Matson
patent: 4816407 (1989-03-01), Matson

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