ROASTED COFFEE EXTRACT DECAFFEINATION METHOD

Patent №

US 4,547,378

Granted

1985-10-15

Filed 1983

Owner

GENERAL FOODS CORPORATION, A DE CORP

Lab

AI components

1

planning

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

06566605

A roasted coffee extract decaffeination method providing a soluble coffee of improved flavor is disclosed. A roasted coffee extract is contacted with a caffeine solvent so that caffeine and a lesser amount of non-caffeine solubles is transferred to the solvent. The two liquids are separated and the caffeine solvent is typically concentrated. The concentrated solvent is then contacted with an aqueous caffeic acid suspension so that caffeic acid/caffeine complex crystals grow in the water phase. The complex crystals are filtered and the then at least partially decaffeinated caffeine solvent is separated from the water phase. Contact of the caffeine solvent and an aqueous caffeic acid suspension may be repeated to achieve further decaffeination. Then, the solvent, which contains substantially only non-caffeine solubles, is added to the substantially decaffeinated roasted coffee extract. The caffeine solvent is then stripped from the roasted coffee extract, which is subsequently dried.

AI classification

Planning0.63
Natural language0.01
Evolutionary computation0.00
Speech0.00
Knowledge representation0.00
Vision0.00
Machine learning0.00
AI hardware0.00

Ownership

GENERAL FOODS CORPORATION, A DE CORP

assignment · 44190318

Assignors

KALEDA, WILLIAM W., SALEEB, FOUAD Z., ZELLER, BARY L.

On an employer assignment, the assignors are typically the inventors.

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