What is Calcium Caseinate Protein Powder?
Spray-dried dairy protein powder, Calcium Caseinate Protein Powder, is a highly functional spray-dried dairy protein constituent produced by reacting purified dairy curd with food-grade calcium bases, resulting in a high level of pure protein that is ideal for large-scale enterprise protein production. This off-white, neutral-flavor powder is made directly from fresh skimmed milk and is a key functional matrix ingredient for sports nutrition blends, bakery blends, processed dairy products, and functional food systems for clients around the world. Its special mineral structure, which is coupled with the native casein phosphoproteins, has low viscosity in liquid suspension, high water-binding capacity, and is exceptionally heat-resistant during applications such as thermal extrusion and UHT treatment. It is slowly digested and has a high amino acid profile, making it ideal for formulations that need to release protein slowly, as well as for formulations where a clean amino acid taste is required to avoid adversely affecting the finished flavor profile. It offers commercial formulators a versatile, superior, and well-balanced nutrient that is optimal for food production in complex systems to enhance physical texture, structural integrity, and nutritional density.
COA
| Item | Specification | Result |
| Appearance | White to cream-colored, free-flowing powder | Conforms |
| Odor & Taste | Typical mild milk odor and taste, free from foreign odor | Conforms |
| Protein (N × 6.38), Dry Basis | ≥ 90.0% | 91.60% |
| Casein Protein, Dry Basis | ≥ 86.0% | 88.70% |
| Calcium (Ca) | 1.3–1.8% | 1.52% |
| Moisture | ≤ 6.0% | 4.20% |
| Milk Fat | ≤ 2.0% | 1.30% |
| Lactose | ≤ 1.0% | 0.18% |
| Ash | ≤ 5.0% | 3.90% |
| pH (10% Solution) | 6.3–7.5 | 6.82 |
| Insolubility | ≤ 1.5 mL | 0.8 mL |
| Scorched Particles | ≤ 15 mg/25 g | 4 mg/25 g |
| Titratable Acidity | ≤ 0.20% | 0.11% |
| Particle Size (≥80 Mesh) | ≥ 95% | 98.20% |
| Lead (Pb) | ≤ 0.10 mg/kg | <0.05 mg/kg |
| Arsenic (As) | ≤ 0.10 mg/kg | <0.05 mg/kg |
| Cadmium (Cd) | ≤ 0.10 mg/kg | <0.02 mg/kg |
| Mercury (Hg) | ≤ 0.05 mg/kg | <0.005 mg/kg |
| Total Plate Count | ≤ 20,000 CFU/g | 1,200 CFU/g |
| Yeast & Mold | ≤ 100 CFU/g | <10 CFU/g |
| Coliforms | ≤ 10 CFU/g | <10 CFU/g |
| Enterobacteriaceae | ≤ 10 CFU/g | <10 CFU/g |
| E. coli | Absent in 1 g | Absent |
| Antibiotic Residues | Complies with applicable requirements | Complies |
| Aflatoxin M1 | ≤ 0.05 μg/kg | <0.02 μg/kg |
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How it works?
Molecular and physiological properties of Calcium Caseinate Powder. This is achieved through the use of a unique aggregation property of caseinate molecules under acidic conditions as a sustained-release vector of amino acids. Once in the gastric environment, the bound calcium ions react with the gastric fluid, which has a low pH, causing the phosphoprotein complex to aggregate and create a coagulum or curd matrix in the stomach. This physical gel structure causes a considerable reduction in the emptying rate of the stomach, and digestion is continued in the intestine by a steady enzymatic hydrolysis of pepsin, followed by intestinal proteolysis by pancreatic enzymes such as trypsin and chymotrypsin. The result is that dipeptides, tripeptides, and free essential amino acids (especially leucine, isoleucine, and valine) enter the systemic circulation slowly over a long period of time. From the cellular level, it is a persistent low level of amino acid entry that allows for a sustained level of substrate for protein synthesis pathways that are essential for basal protein synthesis, notably the mammalian target of rapamycin complex 1 (mTORC1) signaling pathway for the maintenance of positive nitrogen balance over extended periods. In addition, certain bioactive peptide substances are released during enzymatic digestion, which have local regulatory actions in the gut, such as effects on gut motility and on the transit time for nutrients, e.g., casomorphins and casokinins, which are embedded in the primary sequence of casein. This specific kinetic profile (long, sustained proteolytic digestion and sustained systemic amino acid release) is the key and most important mode of action difference, in comparison to the rapid digestion of soluble proteins.
Why choose Calcium Caseinate Protein Powder?
1. Sustained-Release Kinetic Profile
The unique gastric coagulation properties have been extensively investigated for their nutritional characteristics and show a sustained and uninterrupted amino acid flux, which provides a constant nitrogen balance, making it suitable for special nutrition formulations for nighttime and functional use.
2. Multi-Functional Processing Capabilities
It is an excellent emulsifier, water-holding ingredient, and structural stabilizer, which significantly improves the viscosity, crumb, and creamy mouthfeel of a variety of products, including high-protein nutritional bars, dairy and dry mix bases.
3. Thermal Stability Under High Heat
Its strong phosphoprotein structure ensures the integrity of function and structure throughout harsh industrial thermal processes such as UHT sterilization, retort, and high-temperature baking and extrusion processes.
4. Clean Label & Neutral Organoleptics
It is a well-recognized pure dairy derivative and fits well with the consumer demand for simple, transparent clean label dairy ingredients, and its extraordinary flat flavor profile means no need for flavor masking compounds.
5. Macro-Nutritional Efficiency
Calcium Caseinate Protein provides a protein of more than 88% DM protein content and naturally bound dairy calcium ions, enabling commercial enterprise formulators to maximize protein density with total protein and get rid of unwanted fat, carbohydrate, and lactose levels.
Suitable For
1. Active Lifestyle & Fitness Enthusiasts
A perfect functional raw material for products finished formulations, slow-release protein matrix, ideal for post-workout recovery and line products for active consumers.
2. Satiation & Weight-Conscious Consumers
In products focusing on satiety, such as a meal replacement shake or a snacking protein bar, used by enterprise formulators to achieve a longer digestion rate that helps them meet their low-calorie and nutrient-dense formulation targets.
3. Active Aging & Adult Wellness Segments
Calcium Caseinate Protein is added to specialized adult wellness beverages and meal supplements to provide clean-label, naturally bound milk minerals to support natural N balance in the aging population.
4. On-the-Go & Modern Professionals
Provides a structural and nutritional foundation for functional CPG products such as convenient protein drinks, nutritional matrices, and instant breakfast powders for busy consumers seeking to maintain their daily nourishment.
5. Lactose-Sensitive & Clean-Label Shoppers
Allows brand owners to develop their product for consumers who want the substance of dairy protein but in a reduced-lactose form, without having to use synthetic additives and/or powerful masking agents to achieve this.
FAQ
What is the primary protein content of Calcium Caseinate Protein Powder?
It usually consists of 88-92% dry-matter casein protein and is a high-protein, highly concentrated source of complete milk proteins and essential amino acids for commercial formulations.
Why is calcium caseinate preferred in high-protein bar manufacturing?
It serves as a matrix builder and water-binding agent, which helps to keep the bar from becoming hard during the shelf life and contributes to a smooth texture, clean flavor profile, and a desirable fat level in the bar.
Is calcium caseinate protein powder low in lactose?
Yes, there is almost complete removal of lactose from the ingredient during the manufacturing and washing process, and the product is a low-lactose ingredient for reduced-dairy formulations.
How does calcium caseinate behave during high-temperature processing?
It is very stable and will not curdle or deteriorate during UHT sterilization, extrusion, or commercial baking.
Can calcium caseinate be combined with fast-digesting proteins like whey?
Yes, it's often used in combination with whey isolates to provide a dual-phase protein profile in the finished product, thus providing both an immediate and sustained amino acid profile.
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