Membrane decaffeination

Details Membrane decaffeination Membrane decaffeination

1977-09-28

1978-09-12

Golian, Joseph M.

Food or edible material: processes, compositions, and products

Processes

Treatment of liquid with nongaseous material other than...

426424, 426427, 426428, 426490, 544275, 210 22R, A23F 110

Patent

active

041138864

ABSTRACT:
Aqueous vegetable extracts such as extracts of tea or green or roasted coffee are decaffeinated by permitting caffeine to diffuse through at least one porous, hydrophilic membrane and a water-immiscible solvent phase and into a water phase. The solvent may be either internal to a single membrane or positioned between two spaced-apart membranes.

REFERENCES:
patent: 2309092 (1943-01-01), Berry et al.
patent: 3956112 (1976-05-01), Lee et al.
patent: 3989466 (1976-11-01), Pan

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