Casein is the most abundant protein in milk.For a long time,milk proteins particularly casein have been considered only as food proteins for young mammals.

• 酪蛋白是乳中含量最丰富的蛋白质,是幼小哺乳动物的主要食物来源，能够为幼小哺乳动物提供充足的能量和各种氨基酸。