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AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsVijay Singh, Robert A. Moreau
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A method for preparing corn fiber oil involving separating corn fiber from corn kernels (e.g., by a wet milling process), drying the corn fiber, grinding the dried corn fiber to produce ground corn fiber having a particle size of less than about 100 microns, combining the ground corn fiber with an aqueous solution having a specific gravity effective to float aleurone cells, removing the floating aleurone fraction, drying the aleurone fraction to form a dried aleurone fraction, grinding the dried aleurone fraction to form a ground aleurone fraction, extracting corn fiber oil from the ground aleurone fraction by a way selected from the group consisting of an organic solvent and supercritical fluid extraction, and separating the extracted corn fiber oil from the extraction medium. Also shown is a method of recovering corn aleurone cells from corn fiber involving separating corn fiber from corn kernels by a wet milling process, drying the corn fiber, grinding the dried corn fiber to produce ground corn fiber having a particle size of less than about 100 microns, combining the ground corn fiber with an aqueous solution having a specific gravity effective to float aleurone cells, and removing the floating aleurone fraction.
A method of recovering corn aleurone cells from corn fiber and optionally preparing corn fiber oil from corn aleurone cells, said method comprising grinding dried corn fiber to produce ground corn fiber having a particle size of less than about 100 microns, combining said ground corn fiber with an aqueous solution having a specific gravity effective to float aleurone cells, and removing the floating aleurone fraction;
A method of preparing corn fiber oil from corn aleurone cells, said method comprising grinding dried corn fiber to produce ground corn fiber having a particle size of less than about 100 microns, combining said ground corn fiber with an aqueous solution having a specific gravity effective to float aleurone cells, removing the floating aleurone fraction, drying said aleurone fraction to form a dried aleurone fraction, grinding said dried aleurone fraction to form a ground aleurone fraction, extracting corn fiber oil from said ground aleurone fraction by means extraction medium selected from the group consisting of an organic solvent and supercritical fluid extraction, and separating the extracted corn fiber oil from said extraction medium.
A method of recovering corn aleurone cells from corn fiber, said method comprising grinding dried corn fiber to produce ground corn fiber having a particle size of less than about 100 microns, combining said ground corn fiber with an aqueous solution having a specific gravity effective to float aleurone cells, and removing the floating aleurone fraction.
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