Food or edible material: processes – compositions – and products – Processes – Separating a starting material into plural different...
Patent
1988-03-08
1989-04-11
Golian, Joseph
Food or edible material: processes, compositions, and products
Processes
Separating a starting material into plural different...
426427, 426428, 426424, 426422, 426478, 426479, 426432, 426433, 426434, A23F 520
Patent
active
048205370
ABSTRACT:
A method of extracting caffeine from green coffee beans whereby an essentially caffeine-free supercritical fluid is continuously fed to one end of an extraction vessel containing green coffee beans and caffeine-laden supercritical fluid is continuously withdrawn from the opposite end. A portion of decaffeinated beans is periodically discharged while a fresh portion of undecaffeinated beans is essentially simultaneously charged to the extraction vessel. The caffeine-laden supercritical fluid is fed to a countercurrent water absorber. Supercritical carbon dioxide is the preferred supercritical fluid. The method of the present invention is more efficient than batch processes and produces an improved decaffeinated coffee.
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Donovan D. J.
General Foods Corporation
Golian Joseph
Harcarik J. T.
Savoie T. R.
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