Method for the production of a lutein-fatty acid ester concentrate
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 26, 2006
Grant Date -
Jul 10, 2003
app pub date -
Dec 31, 2002
filing date -
Jan 8, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a method for the production of a lutein-fatty acid ester concentrate of high purity by dissolving marigold oleoresin in a ketone solvent such as acetone, cooling the solution, and removing wherefrom a ketone solvent-insoluble component to uniform the quality of oleoresin, followed by dissolving the acetone-soluble portion obtained as above in butanol, cooling the solution, removing a butanol-soluble impurity after adding or without adding one or more members selected from the group consisting of water, methanol, ethanol and a mixture thereof, and washing the resulting butanol-insoluble with ethanol.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully