Methods of producing vegetable oils with low minerals, metals, or other contaminants
AssigneePOET Research, Inc.
InventorsAlexander T. McCurdy, Tapaswy Muppaneni, Brett A. Flittie, Shannon S. Urban, Jacob A. Milbrandt, Steven T. Bly
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Abstract
The present disclosure describes methods for reducing the content of minerals, metals, ions, and/or other undesirable contaminants in vegetable oil, such as corn oil, obtained from fermentation of ground vegetable material. In one aspect, the methods herein produce distiller's corn oil having low amounts of minerals, metals, ions, and/or other contaminants rendering the corn oil more suitable for various further uses, such as biofuel production, with little to no additional refining.
Claims24
A process for reducing the content of ions in a vegetable oil obtained from fermentation of ground vegetable material, the process comprising:
- fermenting a sugar obtained from a ground vegetable material to produce ethanol in a composition that further includes one or more of water, residual ground vegetable material, and vegetable fat;
- adding about 0.001 to about 0.5% w/w of an exogenous esterase based on the total weight of the vegetable fat before, during, or after the fermenting;
- and
- isolating vegetable oil from a portion of the composition in a manner effective to produce an isolated vegetable oil having ions but no more than about 20 ppm of ions.
Dependencies are inferred from the claim text.