Eriocitrin-containing material, method for production of the eriocitrin-containing material, and food, beverage, pharmaceutical preparation and cosmetic each comprising the eriocitrin-containing material
US8993749B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2008 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | May 18, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H17/07
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for producing an eriocitrin-containing material comprises the steps of: preparing an eriocitrin-containing citrus extract from a citrus fruit using an extractant; and separating eriocitrin from the citrus extract. The step of separating eriocitrin from the citrus extract comprises the steps of: bringing the citrus extract into contact with a porous synthetic adsorption resin such that eriocitrin in the citrus extract is adsorbed on the porous synthetic adsorption resin, the porous synthetic adsorption resin comprising a phenol-formaldehyde resin as a main framework and having amino and phenolic hydroxyl groups; and eluting the eriocitrin adsorbed on the porous synthetic adsorption resin using an elution solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.