| 摘要 |
PURPOSE: To obtain the shortening with which long-term preservation and pump transportation are possible by dispersing solid fat glyceride particles which have a specific m.p. and are crystallizable in a beta phase into liquid glyceride oil of a specific iodine value, decreasing the grain sizes by heating and cooling the particles. CONSTITUTION: The solid fat glyceride particles which have the m.p. of about 100 deg.F and are crystallizable are added into the liquid glyceride oil having the iodine value of 90 to 130 put into a vessel 2 and are mixed. The mixture is circulated to a colloid mill 20 by a pump 8 to decrease the particle sizes of the glyceride particles until all the particles of the solid fat glyceride have the max. particle size of <=70μm. Further, the temp. of the mixture is so increased that the temp. does not exceed the m.p. of the particles and that >=10% solid particles remain in the solid phase. These particles are then cooled down to the environmental temp. by a heat exchanger 18 to obtain the flowable shortening which has 2 to 18wt.% total solid particles and in which >=90% particles are <45μm and >=80% thereof are <30μm. After this shortening is stored in storage equipment 19 at 0 to 100 deg.F, the shortening flowable at the environment temp. is obtd. |
