Method for producing purified tea extract
US8445031B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Sep 4, 2008 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Nov 28, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y301/0102
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A purified tea extract is improved in taste by reducing a percentage of gallates in the non-polymer catechins. A process according to the present invention for the production of a purified tea extract includes subjecting a tea extract to a hydrolysis treatment, causing the tea extract to adsorb on the activated carbon, and then bringing a basic aqueous solution or an aqueous solution of an organic solvent into contact with the activated carbon to elute the non-polymer catechins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.