PROBLEM TO BE SOLVED: To provide a plastic oil-and-fat composition in which coarsening of oil and fat crystals is suppressed.SOLUTION: The plastic oil-and-fat composition is prepared by adding a crystal growth inhibitor for oil and fat containing a triglycerine fatty acid ester with an esterification degree of equal to or more than 15% and less than 40% to oil and fat.COPYRIGHT: (C)2010,JPO&INPIT【課題】油脂結晶の粗大化が抑制された可塑性油脂組成物を提供する。【解決手段】エステル化率15%以上40%未満のトリグリセリン脂肪酸エステルを含むことを特徴とする油脂の結晶成長抑制剤を油脂に添加し、可塑性油脂組成物を調製する。【選択図】なし