Purification of lutein-fatty acid esters from plant materials
OwnerThomas Philipinventor
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Abstract
A new process for the purification of lutein-fatty acid esters from marigold flower petals or marigold petal oleoresins based on alkanol precipitation is disclosed. The purified colorant thus prepared is suitable for coloring foods in the yellow to red region.
Claims9
A method of purifying lutein-fatty acid esters from plant materials containing lutein which comprises dissolving oleoresin, which contains said lutein-fatty acid ester, from such materials in hot alkanol containing not more than four carbon atoms and precipitating the lutein-fatty acid esters by cooling the solution, followed by removal of alkanol by filtration and drying the lutein-fatty acid esters under vacuum.
Dependencies are inferred from the claim text.