Eriocitrin-containing material, method for production of the eriocitrin-containing material, and food, beverage, pharmaceutical preparation and cosmetic each comprising the eriocitrin-containing material
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United States of America Patent
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Mar 31, 2015
Grant Date -
Oct 7, 2010
app pub date -
Dec 26, 2008
filing date -
Dec 27, 2007
priority date (Note) -
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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.
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