Process for the isomerization of lutein

Details Process for the isomerization of lutein Process for the isomerization of lutein

1994-07-20

1996-06-04

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568816000, 568822000, 568823000, 568824000, 568832000, C07C 3508, C07C 3518

Patent

active

055234941

ABSTRACT:
A process to obtain a product with a high zeaxanthin content, to be used mainly as an ingredient in poultry feed to enhance the pigmentation of broiler chickens and egg yolk, by reacting at a controlled temperature and pressure, marigold (Tagetes erecta L.) meal or its oleoresin, or formulations containing lutein, with strongly alkaline aqueous solutions under controlled conditions, to isomerize the luteine into zeaxanthin in a product with a higher pigmenting activity.

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