milk protein Casein 9000-71-9

Casein More Info

Casein is the primary phosphoprotein found in mammalian milk, constituting approximately 80% of the proteins in cow's milk and 20-45% in human milk. It is not a single molecule but a family of related proteins that naturally organize into micelles—supramolecular structures that are colloidal in nature. This micellar structure is crucial to its functional properties, providing a stable transport mechanism for calcium and phosphate. Commercially, it is isolated from skim milk through a process of acid precipitation (yielding acid casein) or enzymatic coagulation using rennet (yielding rennet casein). This versatile natural polymer has been utilized for centuries, evolving from a basic nutritional source and adhesive material to a highly refined industrial ingredient.

Uses and Applications

The applications of casein are diverse, spanning the food, industrial, and technical sectors. In the food industry, it is valued as a high-quality protein source and functional ingredient in sports nutrition, meal replacements, and clinical nutrition due to its slow digestion and rich amino acid profile. Its excellent emulsifying, water-binding, and foaming properties make it ideal for dairy products like cheese analogs, coffee whiteners, and whipped toppings. Beyond food, casein finds use in specialized adhesives for woodworking and labels, as a binding agent in water-based paints and coatings, and as a protective film former in paper coatings. A particularly refined grade is also used as the light-sensitive component in traditional photographic papers.

Application Markets

The market for casein and its derivatives, such as caseinates (sodium, calcium), is global and robust, driven by the expanding food and nutrition sector. The largest demand comes from the health and wellness industry, particularly for protein-fortified foods, beverages, and supplements aimed at athletes, bodybuilders, and health-conscious consumers. The industrial market, encompassing adhesives, paints, and plastics, represents a stable, niche segment. Geographically, production is concentrated in dairy-rich regions like New Zealand, the United States, the European Union, and Australia, while consumption is worldwide, with significant import markets in Asia and the Middle East for both nutritional and industrial applications.

Handling and Regulatory Considerations

Casein, in its pure form, is generally recognized as safe for consumption and handling. As an organic powder, standard good manufacturing practices must be followed to prevent dust generation and minimize the risk of combustion, as powdered organic materials can form explosive mixtures in air. It must be stored in a cool, dry environment to prevent moisture absorption, clumping, and microbial spoilage. For food use, it is essential to ensure the product complies with relevant food safety regulations (such as FDA in the USA or EFSA in Europe), which include criteria for purity, microbial limits, and the absence of contaminants. Allergen labeling is critically important, as casein is a major milk allergen and must be clearly declared on product packaging.

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FAQ

Q1. Can I get a free sample?

We can send you a samll free sample, and you only need to pay for the shipping cost.

Q2. What is the HyperChem payment term?

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Q3. What is HyperChem shipment policy?

Our policy is to strive for the quickest shipment time possible.

For ready stock samples, they are usually shipped within 3 working days after payment received.
For non-ready stock, please contact HyperChem sales team to negotiate.

Q4. What is HyperChem shipment term?

By Express  
FedEx  UPS  DHL  EMS                               
Fast: 3-7 days around, high cost, door to door service

By Air                                        
Suitable for more than 50kg 
Fast: 3-7 days, hight cost, port to port, professional broker needed 

By Sea
Suitable for more than 500kg      
Fast: 7-45 days, low cost, port to port, professional broker needed 

We will always attempt to utilize the quickest and most affordable way for customers to receive orders. And follow -up with customers via email for all shipment details as well as updated track information until it arrives without damage.

Q5. What HyperChem will provide after shipment?

For sample orders: 
After shipment is done, an timely email including:

1. Track details (Fedex /TNT/DHL/EMS Track number)
2. Packaging photo
3. COA, MSDS, etc
4. Dispatch date & Estimated arriving time
5. Shipping invoice

For commercial orders
A full set of shipment documents as well as package photos can be provided in scan-copy and original, to help customers complete the customs clearance process.

Company Profile

Established in 2013, Hyper Chem has exclusive tie-ups with leading manufacturers, supplying raw materials produced in GMP and ISO 9002 certified facilities, and provides high-quality ingredients and raw materials to cater to the requirements of our diverse range of clients.

Among them, our key client industrial sectors around the global are:

Pharmaceuticals
Nutrition Ingredients/ Dietary supplements
Cosmetic Ingredients
Food Ingredients
Veterinary API
Agriculture fertilizer
Custom Synthesis lab supply

HyperChem provides to its wonderful and honorable clients comprehensive purchasing and distribution services which ensure that we are delivering the right generic, raw, or customized product, make sure that we are delivering it at the right time, ensure that it is delivered in the specified amount, and in the right kind of packaging to clients and customers of all types of industries irrespective of their size of operation.