Power being rich in milk-origin complex lipids

A method for producing a powder containing at least 20% by dry weight of milk-origin complex lipids, comprising:

• providing a raw material constituted by a butter serum or a reconstituted liquid of butter serum powder;
• adjusting a pH value of the raw material to 4.0 to 5.0 and adding calcium chloride to the raw material, thereby forming sediments of casein contained in the raw material;
• obtaining a supernatant by separating the sediments of casein;
• filtering the supernatant by ultrafiltration or microfiltration, thereby removing proteins other than casein, lactose, and minerals;
• and
• drying the thus obtained filtrate to obtain a powder containing milk-origin complex lipids in an amount of 20% by weight or higher as a result of the foregoing steps,
• wherein the resultant powder contains protein by 15 to 35 percent by dry weight and fat by 45 to 60 percent by dry weight.

A method for producing a powder containing at least 20% by dry weight of milk-origin complex lipids, comprising:

• providing a raw material constituted by a butter serum or a reconstituted liquid of butter serum powder;
• adjusting a pH value of the raw material to 4.0 to 5.0 and adding calcium chloride to the raw material, thereby forming sediments of casein contained in the raw material so as to completely remove casein from a supernatant while leaving whey protein in the supernatant;
• obtaining the supernatant by separating the sediments of casein;
• filtering the supernatant by ultrafiltration or microfiltration, thereby removing proteins other than casein, lactose, and minerals;
• and
• drying the thus obtained filtrate to obtain a powder containing milk-origin complex lipids in an amount of 20% by weight or higher as a result of the foregoing steps,
• wherein the resultant powder contains protein by 15 to 35 percent by dry weight and fat by 45 to 60 percent by dry weight.