Sodium caseinate is a type of protein that is extracted from milk. It is a water-soluble salt that is made by mixing casein, the primary protein in milk, with sodium hydroxide. Sodium caseinate is a natural source of protein that is commonly used in the food industry as an additive due to its functional and nutritional properties.
Sodium caseinate is used in a variety of food products such as cheese, yogurt, baked goods, and processed meats. It is often used as an emulsifier, which means it helps to blend two immiscible liquids such as oil and water. It also acts as a stabilizer, which helps to maintain the texture and consistency of food products. It can be used as a thickener, which is helpful in creating a creamy and smooth texture in products such as ice cream and yogurt. It also has the ability to improve the shelf life of food products by preventing the growth of bacteria.

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