US Patent 6909021 Method of extracting lutein from green plant materials
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Patent abstract
The present invention provides a method for extracting carotenoids from green plant materials using supercritical fluid extraction. A first and second supercritical fluid extraction is performed on the green plant composition at two different pressures to obtain two extracts. The first extract includes substantial amounts of β-carotene. The second extract may have a controlled concentration of β-carotene, and includes substantial amounts of lutein.
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Patent Inventor Names
Lance B. Crombie0
Date of Patent
June 21, 2005
0Patent Application Number
107703450
Date Filed
February 2, 2004
0Patent Primary Examiner
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US Patent 6909021 Method of extracting lutein from green plant materials
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