PROBLEM TO BE SOLVED: To provide an improvement material for chou, being soft, excellent in in-mouth meltability, and capable of obtaining stably a chou case having a large volume and excellent shape retention property and to provide a fat composition for chou.SOLUTION: An improvement material for chou contains an acid treatment material of a milk raw material in which the content of phospholipid in a solid portion derived from milk is 2 mass% or more. A fat composition for chou contains an acid treatment material of a milk raw material in which the content of phospholipid in a solid portion derived from milk is 2 mass% or more. Preferably, in the milk raw material, the content of phospholipid in the solid portion derived from milk is 3 mass% or more.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】ソフトで口溶けが良好で、且つ、容積が大きく保型性が良好なシューケースを安定して得ることができるシュー用改良材、及び、シュー用油脂組成物を提供すること。【解決手段】シュー用改良材は、乳由来の固形分中のリン脂質の含有量が2質量%以上である乳原料の酸処理品を含有する。シュー用油脂組成物は、乳由来の固形分中のリン脂質の含有量が2質量%以上である乳原料の酸処理品を含有する。上記乳原料は、乳由来の固形分中のリン脂質の含有量が、該固形分に対し3質量%以上であることが好ましい。【選択図】なし
