A class of simple,water-soluble proteins that can be coagulated by heat and are found in egg white,blood serum,milk,and many other animal and plant juices and tissues.

• 清蛋白，白蛋白一组单一且溶于水的蛋白质，遇热凝结，存在于鸡蛋白、血清、牛奶及许多其他动植物的体液或组织中。