Method for the modification of fats and oils.

摘要

A method for the modification of a fat or oil wherein a mixture (mixture A) containing a glyceride-type fat or oil to be modified (material A) and a fatty acid or a nonglyceride-type ester thereof (material B) is selectively transesterified in the presence of a catalyst having a selective transesterification activity (catalyst A); the resulting fat or oil (resultant A), fatty acid or nonglyceride-type ester thereof (resultant B) and catalyst (catalyst B) are recovered from the reaction mixture; a hard butter is produced from the resultant A, and a part or all of the resultant B is hydrogenated and the hydrogenated product (material C) is reused as a part of the mixture A.