| abstract |
(57) [Summary] [PROBLEMS] As a raw material for margarine and shortening, Hardened fish oils have been widely used, but in recent years the amount of catch has been drastically reduced and alternative fats and oils compositions have been demanded, so that they have properties equivalent to hardened fish oils and provide a fats and oils composition that can be substituted for hardened fish oils. In addition, since fats and oils having a low trans acid content are also required, an oil and fat having a low trans isomer content is provided. An oil / fat composition obtained by subjecting a fat / oil mixture in which the content of a saturated fatty acid, a saturated fatty acid having 12 or less carbon atoms and a saturated fatty acid having 20 or more carbon atoms is adjusted to a predetermined range to a random transesterification reaction, A hardened fish oil substitute oil / fat composition having product characteristics equivalent to fish oil, and a method for producing the same. |