Processes for preparation of oil compositions
First Claim
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1. A process for preparing an oil composition comprisingdegumming 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.
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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.
112 Citations
19 Claims
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1. 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. - View Dependent Claims (4)
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2. 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.
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3. 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. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19)
- C. and in the presence of an inert gas to minimize oxygen concentration, to form a degummed oil;
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15. 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.
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16. 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.
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Specification