The present invention discloses a method for producing fats and oils rich in a X2U triglyceride, which comprises the step of fractionating fats and oils which comprise 20 to 60 mass % of a di-saturated mono-unsaturated triglyceride (X2U triglyceride) consisting of two saturated fatty acid residues and one unsaturated fatty acid residue in total triglycerides in the presence of 1 to 50 mass % of a fatty acid lower alkyl ester comprising 10 to 100 mass % of an unsaturated fatty acid lower alkyl ester. This method is a more efficient and industrially suitable fractionation and production method of fats and oils rich in a di-saturated mono-unsaturated triglyceride X2U triglyceride).
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