Patent ID: 8552211

Claim:
A method of fractionating a SUS-rich oil-and-fat by multistage fractionation, comprising: dry fractionating a raw material comprising an oil-and-fat comprising 30% by weight or more of an SUS by stirring crystallization and press-filtration to obtain a concentrated SUS in a crystal fraction and a remaining SUS in a filtrate fraction, and then dry fractionating the remaining SUS in the filtrate fraction by stirring crystallization and press-filtration to obtain a concentrated SUS-rich oil-and-fat comprising a content of SUS of 60% by weight or more, wherein the SUS is a 2-unsaturated, 1,3-disaturated triglyceride, the S is a saturated fatty acid having 16 to 22 carbon atoms, and the U is an unsaturated fatty acid having 18 carbon atoms.