Method for Producing Lysophospholipid-Containing Composition and Method for Producing Oil-In-Water Emulsion Composition Using Same

A method for producing a lysophospholipid-containing composition, in which a phospholipid is decomposed by phospholipase A, the method comprising:

• a mixing step of uniformly mixing raw materials containing a phospholipid, a fat and oil, a polyhydric alcohol, and pure water, and phospholipase A to initiate enzymolysis of the phospholipid by the phospholipase A;
• a phospholipid enzymolysis step of subjecting the phospholipid to the enzymolysis by the phospholipase A such that a decomposition ratio of the phospholipid in a mixture obtained in the mixing step is 20% by mass or more;
• and
• an enzyme inactivation step of inactivating the phospholipase A in an enzymolysis product obtained in the phospholipid enzymolysis step,
• wherein a value calculated by a L2 value−a L1 value is positive in the obtained lysophospholipid-containing composition,
• the L1 value:
• a brightness value of the lysophospholipid-containing composition,
• the L2 value:
• a brightness value of an oil-in-water emulsion obtained by dispersing the lysophospholipid-containing composition in 100 times by mass of pure water,
• a total amount of the phospholipid, the fat and oil, the polyhydric alcohol, the pure water, and the phospholipase A used in the mixing step is 90% by mass or more with respect to a total amount of the raw materials and the phospholipase A used,
• a content of the polyhydric alcohol in the raw materials is 0.4 to 3.0 times by mass with respect to a content of the pure water in the raw material,
• a content of the phospholipid in the raw materials is 0.07 to 0.5 times by mass with respect to a total content of the phospholipid and the fat and oil in the raw material, and
• a total content of the polyhydric alcohol and the pure water in the raw materials is 0.25 to 4.0 times by mass with respect to the total content of the phospholipid and the fat and oil in the raw material.