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Casein, also known as cheese protein, is a phosphorus-containing complex protein composed of four major subtypes: α-S1, α-S2, β, and κ. It appears as a white to pale yellow amorphous powder that is odorless, tasteless, and hygroscopic. It is stable when dry but prone to spoilage when exposed to moisture. Casein has a high molecular weight and a complex structure, and possesses excellent emulsifying, thickening, gelling, and binding properties.
| Item | Specification |
| Melting Point | 280°C |
| Boiling Point | N/A |
| Density | 1.25 g/cm³ |
| Flash point | N/A |
| Isoelectric point | pH 4.6 |
| Refractive index | 1.570 |
| Water Solubility | Insoluble; forms a turbid suspension |
Food Industry: Used as a high-quality milk protein ingredient, Casein can be added to infant formula and sports nutrition supplements; It serves as an emulsifier, moisture retainer, thickener, and stabilizer in cheese, meat products, salad dressings, and ice cream.
Pharmaceutical and Personal Care Industries: It can be used to prepare casein phosphopeptides; it serves as a sustained-release carrier for drugs; it is added to dental enamel repair products and personal care products, and is also used as a common blocking substrate reagent in biochemical experiments.
Fine Industrial Processing: Casein proteinpulver is used as a film-forming and binding substrate in paper coating and hand-painting pigments; in the formulation of eco-friendly wood adhesives and paper adhesives; in leather finishing and textile sizing; and in the production of everyday plastic products such as resin buttons.
Feed and Biochemical Applications: It is used in animal feed to improve feeding efficiency; as a nitrogen source in microbial fermentation media; and, leveraging its chelating capacity, for the adsorption and treatment of heavy metals in wastewater.
Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.
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