Method for selectively and sequentially extracting catechins from green tea leaf
US7510736B2 · kind B2 · utility
1Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2004 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Jul 12, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D473/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method for specifically and sequentially purifying catechins from a plant product. More particularly, the present invention provides a method for purifying EGC and EGCG from green tea leaves by sequential brewing at different brewing temperature and for specific infusion times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.