Simple process to produce and separate water soluble and oil soluble antioxidative flavoring compositions from labiatae herbs using green solvents
US9376351B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Oct 25, 2011 |
| Grant date | Jun 28, 2016 |
| Priority date | — |
| Expiry date | Jan 24, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2236/39
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes for preparing water soluble and oil soluble antioxidant compositions extracted together from Labiatae herbs in a single extraction using an alcohol and water solvent, followed by a simple, yet effective purification step that allows the separation of the water soluble antioxidative fractions containing mainly rosmarinic acid from antioxidative fractions containing mainly carnosic acid and carnosol, without cumbersome acid/base partitioning steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.