Coffee extract decaffeination method

Details Coffee extract decaffeination method Coffee extract decaffeination method

1983-09-29

1985-06-04

Golian, Joseph

Food or edible material: processes, compositions, and products

Involving ion exchange, sequestering or chelating material

426422, 544274, A23F 522

Patent

active

045214387

ABSTRACT:
A method of decaffeinating caffeine-containing liquids and particularly aqueous coffee extracts is disclosed. Caffeic acid is added to a caffeine-containing aqueous coffee extract so as to form an insoluble, colloidal caffeic acid/caffeine complex. Crystals of the insoluble caffeic acid/caffeine complex are then grown and subsequently separated from the aqueous decaffeinated coffee extract. The coffee extracts intended for use herein include both roasted and green coffee extracts.

REFERENCES:
patent: 950357 (1910-02-01), Trillich
patent: 953073 (1910-03-01), Trillich
patent: 4113887 (1978-09-01), Kramer et al.
patent: 4113888 (1978-09-01), Heuig et al.
patent: 4315036 (1982-02-01), Husaini et al.
patent: 4331694 (1982-05-01), Izod
Horman et al., The Nature and Conformation of the Caffeine-Chlorogenate Complex of Coffee, Journal of Food Science, 37 (1972), pp. 925-927.

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