The present invention relates to a dry fractionation method for a reactant produced by the enzymatic transesterification of vegetable or animal oil and fat with a fatty acid derivative, wherein the method is characterized in that oil and fat having a high melting point are removed through dry fractionation when triglycerides and fatty acid derivatives are included in the reactant. The dry fractionation method according to the present invention performs dry fractionation without requiring a pretreatment process of separating a fatty acid derivative, which is used as the raw material for a transesterification reactant, from said reactant. Therefore, the fatty acid derivatives that remain during the reaction increase the fractionation precision of oil and fat, and serve as a solvent that reduces the viscosity of the oil and fat, thereby significantly improving fractionation yield本発明は、植物性油脂又は動物性油脂と脂肪酸誘導体とを酵素的エステル交換反応し、生成された反応物を乾式分別する方法において、トリグリセリドと脂肪酸誘導体とが含まれた状態で乾式分別方法により高融点油脂を除去することを特徴とする、乾式分別方法に関するものである。本発明の乾式分別方法は、エステル交換反応物の原料として利用される脂肪酸誘導体を、前記反応物から分離する前処理工程を経ず乾式分別することで、反応中に残っている脂肪酸誘導体が油脂の分別精密度を高め、油脂の粘性を減少させる溶媒のような役割をし、大幅な分別収率向上の結果をもたらすことができる。
