| abstract |
[PROBLEMS] To provide a novel phospholipase B (PLB) having a poor hydrolytic activity on phosphatidylinositol (PI) among diacyl-phospholipids, and to provide a process for producing PI and glycerylphosphorylcholine (GPC) from a phospholipid mixture by exploiting the substrate specificity of the enzyme. [MEANS FOR SOLVING PROBLEMS] A phospholipid processing agent comprising an enzyme having such a PLB activity that is highly effective on a phospholipid other than PI (e.g., phosphatidylcholine (lecithin) and poorly effective on PI. |