Description
Micellar Casein is native, undenatured casein recovered from skim milk by microfiltration without the acid or rennet precipitation steps used for caseinates. The micellar structure is preserved, delivering the slowest-digesting commercial milk protein with minimum 85 percent protein on a dry basis.
Protein content of 85 percent minimum (Kjeldahl, N x 6.38). Light cream to off-white free-flowing powder with clean dairy flavor and limited cold-water solubility, as the native micellar structure resists rapid dispersion.
The amino acid profile is complete with PDCAAS 1.0, glutamine-rich, and the native micelle structure produces the slowest amino acid release of any commercial protein, with peak plasma amino acids at 5 to 8 hours post ingestion.
We supply food-grade Micellar Casein from manufacturers in China holding ISO, HACCP, Halal, Kosher, and other certifications relevant to the product and production.
Common market grades include standard native micellar casein and instantized grades for improved dispersibility. The category is positioned as a premium overnight and sustained-release protein for sports and clinical nutrition. Bulk and reduced-MOQ shipments. Batch-level COA covering protein, moisture, fat, lactose, ash, heavy metals, and microbiology.
Introduction
Micellar casein became commercially significant in the 2000s as microfiltration membrane technology matured to allow selective separation of casein micelles from whey proteins under non-denaturing conditions, preserving the native micellar structure that gives casein its characteristic slow-digestion behavior.
Manufacturing begins with pasteurized skim milk. The milk is microfiltered at low temperature with membranes that retain the casein micelles (typically 0.1 micrometer) while permeating the smaller whey proteins, lactose, and soluble minerals. The casein retentate is diafiltered to remove residual lactose and minerals, then evaporated and spray-dried under conditions that preserve the micellar structure.
Recognized as a permitted food ingredient by the U.S. FDA, regulated under EU dairy ingredient frameworks.
Amino acid quality positioning is complete protein with the longest sustained-release profile available. The native micellar structure forms a gel-like clot in the acidic gastric environment that releases amino acids over 5 to 8 hours, supporting muscle protein balance during overnight fasting windows.
Strategic positioning: micellar casein commands a significant premium over caseinates and is reserved for applications where native protein structure and the longest sustained-release profile justify the cost, particularly premium sports nutrition and high-end clinical nutrition.
Where it is used
- Overnight and bedtime sports nutrition protein powders
- Meal replacement and satiety-positioned formulations
- Sustained-release sports nutrition for prolonged training and recovery
- Clinical nutrition for elderly and sarcopenia populations
- High-protein dairy desserts with extended satiety positioning
- Protein-enriched yogurts and quark-style products
- Premium ready-to-drink protein beverages
- Tube feeds and clinical nutrition with native protein composition
Technical data
| Item | Specification |
|---|---|
| Appearance | Light cream to off-white free-flowing powder |
| Protein content (Kjeldahl, N x 6.38, dry basis) | ≥ 85.0% |
| Moisture | ≤ 6.0% |
| Fat | ≤ 2.0% |
| Lactose | ≤ 2.0% |
| Ash | ≤ 8.0% |
| Casein-to-whey ratio | ≥ 95:5 |
| Particle size | 95% through 30 mesh, or per customer specification |
| Lead (Pb) | ≤ 0.1 mg/kg |
| Arsenic (As) | ≤ 0.1 mg/kg |
| Total plate count | ≤ 10,000 CFU/g |
| Salmonella | Absent in 25 g |
| Allergen statement | Contains milk. |
| Source | Bovine skim milk, microfiltered native casein |
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