PROBLEM TO BE SOLVED: To provide a method for improving a yield of phospholipid by inhibiting an aggregate of protein from remaining in a powder containing phospholipid derived from milk produced using a milk product as a starting material.SOLUTION: The powder containing phospholipid derived from milk contains 45 to 70 wt% of lipid in a dry matter, has a content of phospholipid derived from milk contained in lipid of 20 wt% or more in a dry matter and has a median diameter of insoluble components of 10 μm or less when prepared as a 5% aqueous solution. The method for producing the powder containing phospholipid derived from milk comprises the steps of: decomposing a protein by adding a proteolytic enzyme to a starting material including a milk product deactivating the proteolytic enzyme after decomposing the protein separating the protein decomposed by membrane treatment after inactivating the proteolytic enzyme to produce a concentrated liquid and drying the concentrated liquid.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】乳製品を出発原料中として製造される乳由来リン脂質含有粉末において、タンパク質の凝集物が残存することを抑制し、リン脂質の歩留まりを向上させる方法の提供。【解決手段】乾燥物中に脂質45~70重量%を含有し、脂質に含まれる乳由来のリン脂質の乾燥物中の含量が20重量%以上であり、5%水溶液としたときの不溶成分のメディアン径が10μm以下である乳由来リン脂質含有粉末。また、乳由来リン脂質含有粉末の製造方法であって、乳製品を含む出発原料にタンパク質分解酵素を添加してタンパク質を分解する工程と、タンパク質を分解した後、タンパク質分解酵素を失活させる工程と、タンパク質分解酵素を失活させた後、膜処理によって分解されたタンパク質を分離して濃縮液を得る工程と、濃縮液を乾燥する工程とを含む方法。【選択図】なし
