Patents Assigned to Alfalfa America, Inc.
  • Method of extracting lutein from green plant materials
    Patent number: 6909021
    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 ?-carotene. The second extract may have a controlled concentration of ?-carotene, and includes substantial amounts of lutein.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: June 21, 2005
    Assignee: Alfalfa America, Inc.
    Inventor: Lance B. Crombie