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US 4,935,256 AGranted
Process for making green tea solids
AssigneeThe Procter & Gamble Company
InventorChee-Hway Tsai
Life of this patent
Estimating the term…
Abstract
A process for isolating and purifying green tea solids in good yield is described. The process uses food approved solvents and provides flavanols with less green/grassy flavor. A less bitter and less astringent flavanol pectin complex is also prepared using pectins, cellulose, gums or sugars.
Claims17
A process for isolating flavanols from natural sources comprising:
- (1) extracting a flavanol source with hot water to remove the flavanols;
- (2) deflavoring the flavanols by extracting the aqueous solution with a mixture of hexane and a low molecular weight alcohol wherein the ratio of hexane to alcohol is from about 10:1 to about 1.5:1;
- (3) extracting the deflavored aqueous phase with ethyl acetate;
- and
- (4) recovering the flavanols from the ethyl acetate.
2 more elements
A process for masking the bitter flavors of flavanols by co-drying a mixture comprising flavanols and a masking agent.
Dependencies are inferred from the claim text.