PROBLEM TO BE SOLVED: To provide component adjusted milk having improved thermal stability and a high Ca/P ratio.SOLUTION: A method for producing component adjusted milk of which a milk fat content is 5.9 g or less per 100 g of the total solid content, a phosphorus content is 20 mmol or less per 100 g of the total solid content, and a Ca/P ratio indicating a molar ratio of a calcium content with respect to the phosphorus content is 1.5 or more includes: a first step of adding hydrochloric acid to a raw material liquid containing a milk solid content to obtain a first treatment liquid a second step of treating the first treatment liquid with a nano filtration film to obtain a second treatment liquid as a holding liquid which does not permeate the filtration film a third step of bringing the second treatment liquid into contact with a chloride ion type anion exchange resin to obtain a third treatment liquid and a fourth step of adding citric acid or citrate to the third treatment liquid, and then adding alkali solution thereto to obtain a fourth treatment liquid.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】 熱安定性が向上したCa/P比が高い成分調整乳を提供する。【解決手段】 乳脂肪含有量が全固形分100g当たり5.9g以下であり、リン含有量が全固形分100g当たり20mmol以下であり、かつリン含有量に対するカルシウム含有量のモル比を表すCa/P比が1.5以上である成分調整乳を製造する方法であって、乳固形分を含む原料液に塩酸を加えて第1の処理液を得る第1の工程と、前記第1の処理液をナノろ過膜で処理し、ろ過膜を透過しない保持液として第2の処理液を得る第2の工程と、前記第2の処理液を塩素イオン型陰イオン交換樹脂に接触させて第3の処理液を得る第3の工程と、前記第3の処理液にクエン酸又はクエン酸塩を添加し、次いでアルカリ溶液を添加して第4の処理液を得る第4の工程と、を有する成分調整乳の製造方法。【選択図】なし
