不溶于水和有机溶剂。干酪素能吸收水分，浸于水中，则迅速膨胀，但料子并不结合。干酪素是等电点为pH4.6的两性蛋白质。在牛奶中以磷酸二钙、磷酸三钙或两者的复合物形式存在，构造极为复杂，直到现在没有完全确定的分子式，分子量大约为57000-375000。干酪素在牛奶中约含3%，约占牛奶蛋白质的80%。 产品应用： 牛奶中的酪蛋白是一种磷蛋白。酪蛋白主要有四种类型，约占牛奶总蛋白的80%：α-s1 酪蛋白、α-s2 酪蛋白、β-酪蛋白和κ-酪蛋白。酪蛋白被认为是牛奶中主要的保护成分。 Product Describtion: Casein from bovine milk is a phosphoprotein. There are four main types of Casein which make up approximately 80% of the total protein in bovine milk: α-s1 Casein, α-s2 Casein, β-Casein, and κ-Casein. Casein is proposed to be the main protective constituent in milk. Product Application： Natural protein source, typically isolated from bovine milk.Casein is widely used as a food additive. It is useful in tooth remineralization products to stabilize amorphous calcium phosphate. It is also used as a type of organic adhesive and a binder for safety matches. It supplies amino acids and carbohydrates and two inorganic elements such as calcium and phosphorus. Further, it is also used in the production of transformer board due to its oil permeability.