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Shaanxi Kaishi Biotechnology Co., Ltd
$760
1-199 Kilogram
$720
200-499 Kilogram
$680
≥500 Kilogram
Product Description
Lactoferrin is an iron-binding glycoprotein naturally found in mammalian milk and other secretions, valued for its role in iron binding and its interaction with immune-related biological processes. As a functional nutritional ingredient, lactoferrin powder is used in infant nutrition research, dietary supplements, and specialized food formulations where protein identity, purity, iron-binding characteristics, and microbiological quality are important.
Lactoferrin is a member of the transferrin family of proteins. Bovine lactoferrin is commonly used in commercial Nutritional Ingredients because it can be recovered from bovine milk and incorporated into selected food and supplement applications. Its value depends not only on the stated lactoferrin content but also on protein integrity, iron saturation, processing conditions, and the intended regulatory category of the finished product.
For B2B buyers, lactoferrin powder is suitable for evaluating in nutritional premixes, powder blends, capsules, tablets, and other compatible formulations. Grade selection should account for the target market, applicable food regulations, processing conditions, and the analytical methods used to verify identity and assay.
Lactoferrin is an iron-binding glycoprotein with a molecular mass that varies with species, glycosylation, and analytical characterization. Bovine lactoferrin is generally obtained from milk through separation and purification processes designed to retain the protein's functional structure. It can bind iron through specific binding sites, and its iron saturation may influence the properties required for particular research or formulation purposes.
Lactoferrin should not be treated as a simple small-molecule compound. Its specification requires protein-focused quality parameters rather than a conventional molecular formula and fixed molecular weight alone. For commercial sourcing, species origin, lactoferrin assay, protein integrity, iron saturation, microbiological limits, and allergen controls are important considerations.
| Item | Specification |
|---|---|
| Product Name | Lactoferrin Powder |
| Ingredient Category | Nutritional Ingredients; Functional Milk Protein |
| Common Source | Bovine milk; source species should be stated on the product specification |
| CAS Number | 112163-33-4 is commonly listed for lactoferrin; verify the applicable registry identity for the specific material |
| Molecular Formula | No single universally applicable molecular formula; lactoferrin is a glycosylated protein whose composition varies with source and glycosylation |
| Molecular Weight | Approximately 75–80 kDa for bovine lactoferrin, depending on characterization method and glycosylation |
| Typical Appearance | Light pink, pinkish, or reddish-brown powder; shade varies with iron saturation and processing |
| Assay / Purity Grades | Commercial grades commonly include approximately 90% and 95% lactoferrin; higher-purity or customized specifications may be available depending on source and application |
| Identity Test | Protein-specific identification using validated electrophoretic, chromatographic, immunochemical, or equivalent methods |
| Assay Method | Validated HPLC or other suitable protein-specific quantitative method; the method and calculation basis should be defined in the product specification |
| Additional Quality Parameters | Protein profile, moisture, iron saturation where relevant, heavy metals, microbiological limits, and applicable contaminant testing |
| Solubility | Dispersibility and solubility depend on pH, ionic strength, protein condition, and processing; formulation trials are recommended |
| Allergen Information | Milk-derived ingredient; milk allergen declaration and cross-contact controls should follow applicable market requirements |
| Recommended Storage | Store sealed in a cool, dry place, protected from light, moisture, and excessive heat. Follow the specific product label for temperature requirements. |
| Typical Shelf Life | Commonly 24 months under the manufacturer's specified storage conditions; the actual period depends on the grade and validated stability data |
| Standard Packaging | Common B2B options include 1 kg and 5 kg sealed barrier bags and larger bulk containers; packaging depends on grade and order requirements |
| Particle Size | Can be specified according to the intended blending, encapsulation, or other processing requirements |
| Documentation | COA, TDS, SDS, allergen information, and relevant quality documentation can be requested for procurement and incoming inspection |
| Application | Nutritional supplements, selected nutritional powders, specialized food formulations, and research or formulation development, subject to applicable regulations |
Lactoferrin may be incorporated into capsules, tablets, sachets, and powder blends where the formulation is compatible with the protein's stability and processing requirements. Buyers should evaluate the finished dosage form, exposure to heat and moisture, and the effect of other ingredients on protein integrity.
For nutritional powders and premixes, assess blending uniformity, moisture control, ingredient compatibility, and the effect of the manufacturing process on protein quality. The appropriate lactoferrin grade depends on the target composition, label declaration, and the applicable food category.
Lactoferrin may be considered for selected specialized food applications where its use is legally permitted. Infant formula and other highly regulated nutrition categories require additional review of ingredient authorization, compositional requirements, safety documentation, and market-specific labeling before commercialization.
Research teams may use defined lactoferrin grades to investigate protein characteristics, iron binding, stability, and compatibility with other formulation components. Research-grade suitability does not automatically establish suitability for food, supplement, or infant nutrition manufacturing.
For lactoferrin, the most useful procurement distinction is not assay percentage alone. Protein identity, species origin, iron saturation, processing history, and the analytical basis of the stated assay can affect whether two materials are suitable substitutes. A higher numerical assay should not be assumed to mean better functional performance in every application.
| Evaluation Factor | What Buyers Should Check | Why It Matters |
|---|---|---|
| Assay and Purity | Confirm whether the percentage represents lactoferrin content, protein content, or another calculation basis. | Different calculation methods can make nominal percentages difficult to compare directly. |
| Source Species | Verify bovine or other species origin and ensure it matches the intended formulation and labeling requirements. | Species origin affects ingredient identity, allergen documentation, and application suitability. |
| Iron Saturation | Request a defined iron-saturation specification or analytical result when iron-binding state is relevant to the application. | Lactoferrin's iron-binding state may differ between materials and should not be inferred from assay percentage alone. |
| Protein Integrity | Review the protein profile and relevant stability or functional data, particularly if the process involves heat or extended storage. | Total protein content alone does not establish that the desired protein structure has been retained. |
| Microbiological and Allergen Controls | Check microbial specifications, milk allergen statements, and cross-contact controls. | These requirements are critical for food and supplement manufacturing and may differ by target market. |
| Application and Regulatory Fit | Confirm permitted use, dosage-form compatibility, and market-specific ingredient requirements before purchase. | A material suitable for research or one food category may not be authorized for every finished product. |
Procurement recommendation: Compare suppliers using the same assay definition, identity criteria, and microbiological limits. Request a representative COA and supporting analytical method before approving a specification, then assess the material in the intended formulation and processing conditions.
A reliable B2B lactoferrin supply program should combine clearly defined protein specifications with practical documentation and formulation support. Procurement teams can evaluate materials against their own incoming-inspection requirements rather than relying on a headline purity figure alone.
Lactoferrin powder is commonly packed in sealed, moisture-protective packaging suitable for protein ingredients. Smaller packs, such as 1 kg and 5 kg barrier bags, may support development and pilot production, while larger bulk packaging can be considered for commercial manufacturing. Final packaging should protect the material during storage and transport and suit the customer's receiving and handling procedures.
Packaging format, labeling, and shipment configuration can be tailored to order size, destination-market requirements, and the intended manufacturing workflow. Buyers should confirm that the selected packaging and transport conditions align with the product's storage specification.
Lactoferrin can be evaluated for OEM and private-label projects involving compatible supplement and nutritional product formats. Project scope may include custom formulation, powder blending, capsule or tablet development, label coordination, and packaging configuration, subject to ingredient authorization and manufacturing capability for the target market.
Before production, define the target lactoferrin content per serving, assay basis, dosage form, other active ingredients, allergen statements, target-market labeling, and finished-product stability requirements. A documented product specification helps align raw-material selection with formulation development and quality release.
Quality control for lactoferrin should be based on its identity as a milk-derived protein rather than on a generic botanical or small-molecule assay template. A suitable batch review may include:
Acceptance limits and test methods should be agreed in the raw-material specification and checked against the applicable regulatory and customer requirements. Third-party testing and relevant quality documentation can support supplier qualification and incoming inspection.
Start with the required lactoferrin content in the finished product, then compare available grades using the same assay basis. Review protein identity, iron saturation if relevant, microbiological criteria, and formulation compatibility. The highest assay is not automatically the best choice if the application requires other defined protein characteristics.
Use in infant formula is subject to strict ingredient, compositional, safety, and labeling requirements that vary by jurisdiction. Do not assume that a general commercial lactoferrin grade is authorized for this use. Confirm the ingredient's regulatory status, specifications, supporting documentation, and acceptance criteria for the intended market before development or purchase.
Request a representative COA, TDS, SDS, allergen statement, assay-method details, microbiological specifications, and relevant contaminant data. For applications sensitive to protein condition, also request information on protein integrity, iron saturation, or stability where applicable. Review these documents against the agreed specification before approving the supplier or lot.
Keep lactoferrin in its original sealed, moisture-protective packaging in a cool, dry place away from direct light and excessive heat. Follow the product-specific storage label and stability data, and minimize exposure to humid air after opening. Use the manufacturer's validated shelf life rather than assuming all grades have identical stability.
Lactoferrin powder is a specialized protein ingredient whose sourcing decisions should consider assay definition, source species, protein integrity, iron saturation, microbiological quality, and regulatory suitability together. Matching these parameters to the finished-product requirements helps procurement and formulation teams make more reliable comparisons between commercial materials.
Contact us today to request samples, a COA, technical documents, and a wholesale quotation for lactoferrin powder.
Packaging & Delivery
| Selling Units: | Kilogram |
|---|
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