Beef Protein Isolate for Sports Nutrition Formulations
High-protein Beef Protein Isolate for B2B ingredient sourcing, with a ≥95% protein specification and 3,000–5,000 Da molecular-weight range. Review the reference batch COA and request source, amino-acid and process documentation before final supplier qualification.

Source Tissue & Protein Quality Require Separate Documentation
The supplied COA names the product “Beef Protein Isolate,” but does not state whether the raw material is muscle, hide, bone, tendon, broth or another bovine tissue. It also does not provide an amino-acid profile, BCAA/leucine values, digestibility data or a hydrolysis-process statement. This page therefore does not claim “complete protein,” “whey equivalent,” “collagen-rich,” “grass-fed” or a specific source tissue.
High-Protein Beef Protein Isolate Powder
The supplied Certificate of Analysis identifies the material as Beef Protein Isolate and controls protein, molecular weight, ash, loss on drying, pH, heavy metals, melamine metabolites, bulk density, sodium and microbiology.
For sports nutrition and functional-protein development, protein percentage alone is not enough to establish protein quality. Request a current amino-acid profile and source declaration whenever essential amino acids, BCAA, leucine, collagen content or source-tissue positioning matters to the finished product.
Batch 20251209 Snapshot
Reference-batch results are shown separately from specification limits. The 18,500 kg figure is the batch quantity on the COA, not a current stock claim.
Beef Protein Isolate COA Specifications
The table below reproduces the supplied COA. The certificate includes both a general “Heavy Metals (Pb)” row and a separate Lead row; both are retained rather than silently merged.
| Test Item | Specification | Reference Batch Result | Test Method |
|---|---|---|---|
| Characteristic | Light Brown Tan Powder, 60 mesh | Not separately printed | Sensual Test |
| Protein | NLT 95% | 97.12% (Dry Basis) | Kjeldahl Method |
| Molecular Weight | 3,000–5,000 | 3,000–5,000 | Gel Chromatography Method |
| Ash | NMT 2.0% | 1.58% | U.S.P. / N.F. |
| Loss on Drying | NMT 8.0% | 5.44% | U.S.P. / N.F. |
| pH | 5.0–6.5 | 5.63 | Japanese Pharmacopoeia |
| Heavy Metals (Pb) | NMT 20.0 ppm | <20 ppm | Na2S Colorimetric |
| Arsenic (As2O3) | NMT 1.0 ppm | <1.0 ppm | Atomic Absorption Spectrometer |
| Chromium | <2.0 ppm | <2.0 ppm | Atomic Absorption Graphite Furnace |
| Melamine (Metabolites) | Negative | Negative | HPLC |
| Bulk Density | >0.35 g/ml | 0.38 g/ml | U.S.P. / N.F. |
| Sodium | <0.7% | <0.7% | ICP-MS |
| Total Bacterial | <1,000 CFU/g | 300 CFU/g | GB4789.2 |
| Yeast and Mold | <100 CFU/g | 30 CFU/g | GB4789.15 Method I |
| E. coli | Negative /10g | Negative | GB4789.38 |
| Coliform Group | Negative /10g | Negative | GB4789.3 Method II |
| Lead | NMT 1.0 ppm | <1.0 ppm | ICP-MS |
| Mercury (Hg) | NMT 0.1 ppm | <0.1 ppm | ICP-MS |
| Cadmium | NMT 0.1 ppm | <0.1 ppm | ICP-MS |
What the COA Proves — and What to Request Separately
This distinction helps procurement and formulation teams avoid treating a protein assay as proof of amino-acid quality, source tissue or hydrolysis status.
Verified in the Reference COA
These properties are explicitly reported in the supplied certificate.
Request Before Making Additional Claims
These items are not established by the supplied COA.
Beef Protein Isolate for Product Development
These are formulation pathways to evaluate during R&D—not performance claims. Confirm sensory, solubility, nutrition and regulatory suitability in the finished formula.
Protein Powders
Evaluate protein target, flavor system, dispersibility, serving size and amino-acid profile before positioning.
Meal Replacements
Assess texture, viscosity, flavor masking and nutritional contribution within the complete protein system.
Hybrid Protein Systems
Blend with other animal or plant proteins only after evaluating sensory, amino-acid and functional compatibility.
Savory & Food Concepts
Confirm heat, pH, flavor and processing performance in the intended finished-food system.
What to Request from a Beef Protein Isolate Supplier
Current B2B SERP results emphasize protein percentage, sample/quote access, source documentation, specifications and application fit. For this product, source tissue and amino-acid qualification are especially important.
Confirm protein, molecular weight, density, sodium, contaminants and microbiology on the lot being qualified.
The reference COA does not identify either; request current declarations before making source-specific claims.
Required if your label or sales story depends on EAA, BCAA, leucine, tryptophan or collagen-associated amino acids.
The 3,000–5,000 molecular-weight result alone does not document the manufacturing process.
The COA lists an 18,500 kg reference batch quantity but does not state commercial pack size, MOQ or live inventory.

Beef Protein Isolate Sourcing Questions
What is the protein specification for this Beef Protein Isolate?
The supplied COA specifies NLT 95% protein. Reference batch 20251209 reports 97.12% protein on a dry basis.
What is the molecular weight range?
The COA specifies and reports a 3,000–5,000 molecular-weight range using a gel chromatography method.
What part of the animal is this Beef Protein Isolate made from?
The supplied COA does not state the source tissue. Request a current source-tissue declaration before describing it as muscle-, hide-, bone-, tendon- or broth-derived.
Is this hydrolyzed beef protein?
The COA reports a 3,000–5,000 molecular-weight result but does not explicitly state hydrolysis status. Request the current TDS, manufacturing flow chart or hydrolysis declaration if this designation is required.
Is Beef Protein Isolate a complete protein?
The supplied COA only reports total protein and does not provide a full amino-acid profile or protein-quality score. A “complete protein” claim should not be made from this COA alone.
Does the COA provide BCAA or leucine values?
No. BCAA, leucine, tryptophan and other individual amino-acid values are not included in the supplied certificate. Request a current amino-acid profile if these values matter to your formulation.
What does the COA report for bulk density and sodium?
The bulk-density specification is >0.35 g/ml with a reference result of 0.38 g/ml. Sodium is specified and reported at <0.7%.
Can I request a current COA, sample and commercial quote?
Yes. Contact ATNUTRA with your target application, destination market and expected volume to request current documentation, sample availability and commercial terms.
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View Product →Ready to Source Beef Protein Isolate?
Tell us your target formulation, destination market and expected volume. Request the current COA, source documentation, amino-acid data, sample availability and commercial quote.
