Patent ID: 7955814

Claim:
A method for the in situ production of an emulsifier in a foodstuff, wherein the method comprises the step of adding a lipid acyltransferase to the foodstuff wherein the lipid acyltransferase is one which is capable of transferring an acyl group from a lipid to one or more of the following acyl acceptors: a sterol, a stanol, a carbohydrate, a protein or a sub-unit thereof, glycerol; wherein one or more of a sterol ester or a stanol ester or a protein ester or a carbohydrate ester or a diglyceride or a monoglyceride is produced in situ in the foodstuff and wherein the lipid acyltransferase when tested using the Transferase Assay in Buffered Substrate has at least 5% acyltransferase activity (relative acyltransferase activity) wherein the Transferase Assay in Buffered Substrate comprises: (a) heating to 35° C. a substrate solution comprising phosphatidylcholine, cholesterol, water and HEPES buffer, wherein the substrate solution comprises approximately 95% water and has pH 7.0; (b) adding an enzyme to the substrate solution; and (c) determining acyltransferase activity of the enzyme based upon cholesterol ester and fatty acids formed.