Food or edible material: processes – compositions – and products – Processes – Treatment of liquid with nongaseous material other than...
Patent
1980-09-30
1985-10-08
Golian, Joseph
Food or edible material: processes, compositions, and products
Processes
Treatment of liquid with nongaseous material other than...
426427, 426428, A23F 522
Patent
active
045459983
ABSTRACT:
The process disclosed herein decaffeinates an aqueous caffeine feed solution by contacting it with a multi-phase extractant which comprises a continuous phase of a liquid, water-immiscible, caffeine-specific solvent and discontinuous aqueous phase dispersed therein. The caffeine is selectively extracted from the aqueous feed solution, leaving the solubles necessary for a good testing beverage due to the high combined selectivity of the extractant phases. Very low solvent-to-extract ratios are possible because the multi-phase extractant has a much improved partition coefficient as compared to the water-immiscible solvent.
REFERENCES:
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Sivetz, Coffee User's Guide, 1963, Coffee Publications: Box 455, San Aurelmo, California, pages.
Chemical Abstracts, 4 63, (1910), C. Kippenberger, "New Ideas on the Production of Food Low in Caffeine and Theine, with a Discussion of the Patent Law of Apr. 7, 1901."
C. Kippenberger, Neue Hinweise zur Gewinnung Coffein-bzw. Teinarmer Lebensmittel, Nebst Erorterungen zum Patentgesetz vom. 7, Apr. 1891. Zeitschrift fur Angewandte Chemie, vol. 22, pp. 1837-1841, No. 38, Sep. 17, 1909.
Chemical Abstracts, 38 5608, (1944), Luiz Ribeiro Guimaraes, "The Solubility of Caffeine in Coffee Oil", Rev. quim. ind. (Rio de Janiero), 13, No. 143, 26, (1944).
Luiz Ribeiro Guimaraes, "Solubilidade da Cafeina No Oleo de Cafe", Revista de Quimica Industrial, Mar. 1944, p. 26.
Katz Saul N.
Skiff Ronald H.
Donovan Daniel J.
General Foods Corporation
Golian Joseph
Marcoux Thomas A.
Nabulsi Basam E.
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