05847238 is referenced by 15 patents and cites 19 patents.

Improved methods for the recovery of xanthophylls from corn gluten meal are provided. More specifically, methods for the recovery of xanthophylls from corn gluten whereby relatively dry corn gluten is extracted with an organic alcohol followed by a saponification reaction to convert xanthophyll esters to xanthophylls is described. Also described are methods for the recovery of xanthophylls from corn gluten meal whereby relatively dry corn gluten meal is extracted with a first solvent containing and antioxidant and the resulting extract is, optionally, purified. Using these is methods, xanthophylls can be recovered from corn gluten meal in higher yields, at greater efficiencies, and in higher purity as to compared to prior art methods. Moreover, the xanthophyll products recovered in these methods are ideally suited for use in food products and in pharmaceuticals. These materials are especially suited for use in poultry feeds to provide the desired, healthy yellow color or hue in broiler and egg yolks.

Title
Processes for recovering xanthophylls from corn gluten meal
Application Number
486376
Publication Number
5847238
Application Date
November 29, 1996
Publication Date
December 8, 1998
Inventor
Tracy Lee Cornuelle
St. Paul
MN, US
Harapanahalli S Muralidhara
Plymouth
MN, US
Agent
Fitch Even Tabin & Flannery
Assignee
Cargill Incorporated
MN, US
IPC
C07C 568/816
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