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: None;COPYRIGHT: (C)2018,JPO&INPIT
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