Processes for preparation of oil compositions
AssigneeMonsanto Technology LLC
InventorsJuan P. Arhancet, Jerald D. Heise, Vallabh Makadia
Life of this patent
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Abstract
The present invention is directed to processes for preparing oil compositions having a high concentration of poly-unsaturated fatty acids and oil compositions having a low concentration of α-linolenic acid. In addition, the present invention is directed to processes for preparing oil compositions having advantageous stability characteristics.
Claims19
A process for preparing an oil composition comprising
- degumming a crude oil to form a degummed oil;
- contacting the degummed oil with a bleaching material under process conditions that minimize oxidation or minimize isomerization of cis-fatty acids to trans-fatty acids to form a bleached oil;
- and
- deodorizing the bleached oil to form the oil composition having an anisidine value of less than about 3 and comprising less than 1 wt. % trans-fatty acid based on the total weight of fatty acids or derivatives thereof in the oil composition.
A process for preparing an oil composition comprising
- degumming a crude oil to form a degummed oil;
- neutralizing the degummed oil with an alkaline aqueous solution, in the presence of an inert gas to minimize oxygen concentration, to form a refined oil, or reacting the degummed oil with an acidic aqueous solution, in the presence of an inert gas to minimize oxygen concentration, to form a mixture and neutralizing the mixture with an alkaline aqueous solution, in the presence of an inert gas to minimize oxygen concentration, to form a refined oil;
- bleaching the refined oil to form a refined, bleached oil;
- and
- deodorizing the refined, bleached oil to form the oil composition, wherein:
- the refined, bleached oil is deodorized under process conditions that form the oil composition having an anisidine value of less than about 3 and comprises less than 1 wt. % trans-fatty acid based on the total weight of fatty acids or derivatives thereof in the oil composition.
A process for preparing an oil composition comprising
- reacting a crude oil with an acidic aqueous solution, at a temperature of at least 35° C. and in the presence of an inert gas to minimize oxygen concentration, to form a degummed oil;
- bleaching the degummed oil to form a bleached oil;
- and
- deodorizing the bleached oil to form the oil composition, wherein:
- the bleached oil is deodorized under process conditions that form the oil composition having an anisidine value of less than about 3 and comprises less than 1 wt. % trans-fatty acid based on the total weight of fatty acids or derivatives thereof in the oil composition.
A process for preparing an oil composition comprising
- contacting an oil-containing material with an extraction fluid, in the presence of an inert gas to minimize oxygen concentration, to extract a crude oil from the oil-containing material and degumming the crude oil to form a degummed oil;
- bleaching the degummed oil to form a bleached oil;
- and
- deodorizing the bleached oil to form the oil composition having an anisidine value of less than about 3 and comprising less than 1 wt. % trans-fatty acid based on the total weight of fatty acids or derivatives thereof in the oil composition.
A process for preparing a non-animal oil comprising
- degumming a crude non-animal oil to form a degummed oil;
- contacting the degummed oil with a bleaching material under process conditions that minimize oxidation or minimize isomerization of cis-fatty acids to trans-fatty acids to form a bleached oil;
- and
- physically refining and deodorizing the bleached oil under process conditions comprising either a temperature from about 185° C. to about 225° C. and a pressure of not more than about 0.1 kPa for not more than about 260 minutes, or a temperature from about 245° C. to about 295° C. and a pressure of not more than about 0.1 kPa for not more than about 120 minutes.
Dependencies are inferred from the claim text.