PROBLEM TO BE SOLVED: To provide a method for manufacturing a transesterified oil and fat rich in diacylglycerol while suppressing generation of by-products.SOLUTION: There is provided a manufacturing method of transesterified oil and fat including a process for reacting glycerol and oil and fat with a ratio of molar number of a fatty acid group to molar number of a glycerol group [FA/GLY] of 2.1 or more in the presence of calcium hydroxide for 60 min. or more.SELECTED DRAWING: NoneCOPYRIGHT: (C)2019,JPO&INPIT【課題】副生成物の生成を抑えながら、ジアシルグリセロールに富むエステル交換油脂を製造する方法の提供。【解決手段】水酸化カルシウムの存在下、グリセリンと油脂とを、グリセリン基のモル数に対する脂肪酸基のモル数の比［ＦＡ／ＧＬＹ］を２．１以上として、６０分以上反応させる工程を含む、エステル交換油脂の製造方法。【選択図】なし
