| Core Attribute | Specification |
|---|---|
| Product Name | Whey Protein Concentrate (WPC) / Isolate (WPI) |
| CAS Number | N/A (Food ingredient) |
| Protein Content | WPC 80.2% min; WPI 90.5% min (AOAC 992.23) |
| Source | Fresh Cow’s Milk from Grass-Fed Herds |
| Packaging | Multi-layer co-extruded liner in fiber drum. Net weight: 25 kg/drum |
| Primary Benefits | Muscle Protein Synthesis, Rapid Recovery, Immune Support (Immunoglobulins) |
| Application | Sports Nutrition, Functional Foods, Clinical Nutrition, Beverages |
Fuel Performance with Ultra-Premium Whey Protein Isolate & Concentrate
SRBio Whey Protein: A complete, fast-absorbing protein source, naturally rich in all essential amino acids and branched-chain amino acids (BCAAs). Sourced from fresh, grass-fed milk and processed via low-temperature microfiltration to preserve native protein structure, bioactive fractions (Beta-lactoglobulin, Glycomacropeptides), and maximum anabolic potential.
Uncompromising Quality: SRBio’s Manufacturing Excellence
Our production philosophy mirrors our PQQ process: precision control at every step, from farm to finished powder.
1. Raw Material Purity & Traceability
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Milk Source: Sourced exclusively from partner farms in Heilongjiang Province, adhering to EU-equivalent animal welfare and antibiotic-free standards.
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Freshness Guarantee: RFID-tracked milk tankers ensure temperature-controlled transit (2-4°C) from farm to processing facility within 4 hours.
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Raw Milk Screening: Every batch is tested for 12 parameters including somatic cell count (<200,000/mL), antibiotic residues (HPLC-MS/MS, 0 ppb), and total bacterial count (<10,000 CFU/mL).
2. Advanced Cold-Microfiltration Process
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Technology: We utilize a multi-step membrane filtration process (Cross-Flow Microfiltration) without chemical solvents, preserving delicate protein fractions.
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Production Workflow:
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RAW MILK INTAKE & PASTEURIZATION (HTST)
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CERAMIC MEMBRANE MICROFILTRATION (0.1μm pore size) → Separates fat, casein, and native whey.
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ULTRAFILTRATION & DIAFILTRATION → Concentrates protein, removes lactose and minerals.
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LOW-TEMPERATURE SPRAY DRYING (Inlet temp <180°C) → Preserves amino acid integrity.
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INSTANTIZATION & LECITHINATION → Ensures superior dispersibility and mixability.
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QUALITY VERIFICATION (In-process & final)
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NITROGEN-FLUSHED PACKAGING
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3. Stability & Shelf-Life Superiority
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Accelerated Stability Data: Retains ≥98% protein solubility and ≥95% available lysine after 24 months at 25°C/60% RH (ICH Q1A protocols adapted for food).
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Protective Packaging: Nitrogen-flushed, multi-layer foil liner protects against oxidation, moisture pick-up, and light damage.
Lab-Verified Specifications & Performance Metrics
| Parameter | SRBio WPI (Isolate) | SRBio WPC (Concentrate) | Industry Standard (Avg.) | Test Method |
|---|---|---|---|---|
| Protein Content (dry basis) | ≥ 90.5% | ≥ 80.2% | 88-89% / 75-78% | AOAC 992.23 / Kjeldahl |
| Biological Value (BV) | 159 | 104 | 104-110 | Calculated |
| PDCAAS Score | 1.0 | 1.0 | 0.95-0.99 | FDA/WHO Method |
| Solubility Index (Instantized) | >98% | >98% | 85-92% | Modified ADPI Method |
| Lactose Content | < 0.3% | < 5.5% | <1% / 6-10% | Enzymatic / HPLC |
| Ash Content | < 2.0% | < 3.5% | 2-4% | AOAC 923.03 |
| Heavy Metals (Pb, As, Cd, Hg) | < 0.1 ppm each | < 0.1 ppm each | <0.5 ppm | ICP-MS |
| Total Plate Count | < 3,000 CFU/g | < 5,000 CFU/g | <10,000 CFU/g | AOAC 966.23 |
| Yeast & Mold | < 50 CFU/g | < 50 CFU/g | <100 CFU/g | AOAC 997.02 |
Scientific Validation & Functional Benefits
1. Superior Anabolic Response
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Leucine Content: Naturally high in leucine (10-11g/100g protein), the primary trigger for the mTOR pathway, maximizing Muscle Protein Synthesis (MPS).
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Clinical Benchmark: Consistent with studies showing 20-25g of whey isolate post-exercise significantly stimulates MPS compared to lower-quality proteins.
2. Native Bioactive Peptides
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Immunoglobulins: Retains native IgG antibodies (approx. 3-5%) for passive immune support.
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Glycomacropeptides (GMP): Naturally present, may support satiety and gut health.
3. Rapid Absorption Kinetics
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Digestion Rate: Classified as a “fast” protein, with plasma amino acid levels peaking approximately 60-90 minutes post-ingestion, ideal for post-workout recovery.
Formulation-Ready Physicochemical Properties
| Property | SRBio WPI (Isolate) | Competitor Average | Benefit for Formulators |
|---|---|---|---|
| Solubility (pH 6.5-7.0, 20°C) | >98% | 85-92% | Clear solutions in RTD beverages; no grit. |
| Dispersibility | Instantized – excellent | Standard | Scoops easily, mixes with spoon in water/milk. |
| Heat Stability (90°C, pH 3.0) | Stable, minimal precipitation | Moderate aggregation | Suitable for protein-fortified juices and clear protein waters. |
| Bulk Density (Tapped) | 0.45 – 0.55 g/mL | 0.60 g/mL | Good flow for packaging, higher fill weights. |
| Emulsification Capacity | High (due to phospholipids) | Moderate | Ideal for bars, dressings, and coffee creamers. |
| Flavor Profile | Clean, neutral, low “soapy” notes | Variable | Faster flavor development cycles. |
Supply Chain & Compliance Leadership
1. Audited Transparency & Vertical Integration
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End-to-End Control: We own and operate our spray drying towers, eliminating toll manufacturing and ensuring complete quality control.
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Blockchain Traceability: Batch-specific documentation available via QR code, tracing product back to the farm source.
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Dual Sourcing Strategy: Production capable across multiple ISO 22000-certified sites to ensure supply security.
2. Regulatory & Certification Support
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Global Dossier Support: We provide comprehensive documentation for FDA, EU Novel Food, Health Canada, and FSSAI filings.
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Allergen Statement: Certified free from gluten, soy, egg, and crustaceans (ELISA verified). Produced in a facility that also processes milk.
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Third-Party Validations: Routine testing by SGS/Intertek. Halal, Kosher, and Non-GMO Project verification available.
Competitive Breakdown: SRBio vs. Market Alternatives
Common Deficiencies in Standard Whey Powders:
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Heat-Damaged Protein: High-temperature processing denatures protein, reducing bioavailability (lower BV).
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Off-Flavors: Oxidation of residual fats leads to rancid, “cardboard” notes.
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Solubility Issues: Poor instantization results in clumping and low mixability.
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Inconsistent Supply: Reliance on spot-market milk prices and toll manufacturers.
SRBio’s Integrated Advantage:
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Native Protein Structure: Low-temperature microfiltration ensures high levels of native, undenatured protein.
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Fresh, Clean Taste: Strict control over raw milk quality and rapid processing minimizes lipid oxidation.
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Engineered for Mixability: Advanced instantization technology guarantees lump-free dispersion.
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Cost-Efficient Supply: Vertical integration yields FOB costs up to 30% lower than EU/US manufacturers.
Technical Partnership & Customization Program
1. Co-Development Services
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Formulation Stability: ICH-guided stability studies for your specific matrix (e.g., protein bars, acidic beverages).
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Customized Nutrient Profiles: Adjustable fat/carb content, fortification with creatine, BCAAs, enzymes, or flavor systems.
2. Market-Ready Customization
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Flavor Systems: Access to 50+ natural and artificial flavor profiles, with sweetening options (sucralose, stevia, monk fruit).
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Custom Blends:
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RecoveryPro™: WPI + Creatine Monohydrate + D-Ribose.
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SlimMatrix™: WPC + Glucomannan + Green Tea Extract.
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Private Label Packaging: Flexible options including doypacks, metal cans, stick packs, and single-serve sachets. MOQ from 5,000 units.
Request your 5kg free sample kit with full Certificate of Analysis (CoA) and MSDS – typically dispatched within 48 hours.
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Xi’an SR Bio-Engineering Co., Ltd
Xi’an SRBio is a professional wholesale provider of many quality nutritional supplements products and AMINO ACID Powde etc.
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