Membrane decaffeination

Details Membrane decaffeination Membrane decaffeination

A - Human Necessities

23

F

99/80

A23F 5/20 (2006.01) A23F 3/38 (2006.01) A23F 5/16 (2006.01) A23F 5/22 (2006.01)

Patent

CA 1088802

- 1 - MEMBRANE DECAFFEINATION ABSTRACT OF THE DISCLOSURE 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.

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