Method for extracting lutein from green plant materials

   
   

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 .beta.-carotene. The second extract is substantially free of .beta.-carotene, and includes substantial amounts of lutein.

A invenção atual fornece um método extraindo carotenoids dos materiais de planta verde usando a extração fluida supercritical. Uma primeira e segunda extração fluida supercritical é executada na composição da planta verde em duas pressões diferentes obter dois extratos. O primeiro extrato inclui quantidades substanciais de beta.-caroteno. O segundo extrato está substancialmente livre do beta.-caroteno, e inclui quantidades substanciais de lutein.

 
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