Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael Ahern0
David Baugh0
David Walsh0
Mark Hoffman0
Date of Patent
September 19, 2006
0Patent Application Number
106967300
Date Filed
October 29, 2003
0Patent Primary Examiner
Patent abstract
The present invention provides a process for an industrial scale extraction and purification of xanthophylls (e.g., lutein and zeaxanthin) from plant material (e.g., alfalfa or other leafy green crops having high levels of chlorophyll). The process involves harvesting lutein rich alfalfa, extracting an oleoresin from the alfalfa leaves, saponifying the oleoresin, extracting and extracting lutein using a series of solvent extractions specific for oleoresin obtained from alfalfa or other leafy green plants.
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