Method for producing multiple oil/fat compositions by complex transesterification reaction system
AssigneeFuji Oil Holdings Inc.
InventorShimpei Watanabe
Life of this patent
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Abstract
The present invention addresses the problem of providing a method for effectively producing a target oil/fat that is rich in triglyceride, by using liberated by-products such as fatty acid ester originating from starting material oil/fat that is separated from the target oil/fat efficiently after the reaction when producing the target oil/fat that is rich in triglyceride by a transesterification reaction using, for example, oil/fat and fatty acid ester as starting materials.
Claims21
A process for producing a plurality of fat compositions by a combined reaction system, wherein the combined reaction system comprises a first reaction system which produces a fat composition rich in USU and a second reaction system which produces a fat composition rich in SUS, the first reaction system comprises the following steps (1) to (3), the second reaction system comprises the following steps (4) to (6), wherein a fraction obtained in step (6) is used for a part or all of raw material fatty acid or lower alcohol ester thereof (b) in step (1), and wherein a fraction obtained in step (3) is used for a part or all of raw material fatty acid or lower alcohol ester thereof (d) in step (4), wherein S represents saturated fatty acid with C4 to C24, U represents unsaturated fatty acid with C18, USU represents triglyceride in which fatty acids at 1,3-positions are U and fatty acid at 2-position is S, and SUS represents triglyceride in which fatty acids at 1,3-positions are S and fatty acid at 2-position is U, and wherein steps (1) to (6) are as follows:
- (1) a step of mixing raw material fat (a) comprising 80% by weight or more of S in the constituent fatty acid and raw material fatty acid or lower alcohol ester thereof (b) comprising U as a major component;
- (2) a step of subjecting the raw material mixture obtained in step (1) to interesterification using 1,3-position-specific lipase;
- (3) a step of separating a fraction of fatty acid or lower alcohol ester thereof, which is liberated derived from the 1,3-positions of the raw material fat (a), by distillation from a reaction product obtained in step (2);
- (4) a step of mixing raw material fat (c) comprising 50% by weight or more of U in the constituent fatty acid and raw material fatty acid or lower alcohol ester thereof (d) comprising S as a major component;
- (5) a step of subjecting the raw material mixture obtained in step (4) to interesterification using 1,3-position-specific lipase;
- and
- (6) a step of separating a fraction of fatty acid or a lower alcohol ester thereof, which is liberated derived from the 1,3-positions of the raw material fat (c), by distillation from a reaction product obtained in step (5).
Dependencies are inferred from the claim text.