The Extract Factory is a specialized manufacturer and wholesale supplier of premium pumpkin seed extract powder in China. Backed by advanced extraction infrastructure, rigorous quality management systems, and vertically integrated sourcing networks, we produce standardized Cucurbita pepo seed extracts engineered for dietary supplement, functional food, and cosmetic ingredient applications. We deliver consistent batch-to-batch quality, full regulatory documentation, and competitive bulk pricing to manufacturers, formulators, and distributors worldwide.
Botanical Source & Raw Material Traceability
Pumpkin Seed Extract is derived from the seeds of Cucurbita pepo L., a species widely cultivated for its nutrient-dense kernels and characteristic lipid profile. We partner with established agricultural networks to secure premium raw seeds selected for high oil and protein content. Every incoming lot undergoes identity verification, foreign matter screening, and oil-content assessment before entering production, establishing full traceability from raw material to finished extract.
Advanced Extraction Process & Standardized Active Profile
Our manufacturing process employs controlled solvent extraction to concentrate the inherent lipid and protein fractions of pumpkin seeds. Production takes place in dedicated extraction facilities under strict environmental monitoring, followed by multi-stage purification, vacuum concentration, and low-temperature drying to preserve active integrity.
The finished Pumpkin Seed Extract Powder is standardized to two primary markers:
- Total Fatty Acids ≥40%
- Protein Content ≥60%
This dual standardization provides formulators and quality-control teams with quantifiable benchmarks for label accuracy, batch consistency, and finished product performance. Beyond these standardized compounds, pumpkin seeds naturally contain phytosterols, tocopherols, and trace mineral fractions that contribute to the extract’s overall nutritional matrix.
Technical Specifications & Physical Properties
- Botanical Name: Cucurbita pepo
- Plant Part Used: Seed
- Source: Pumpkin Seeds
- Appearance: Light Yellow to Dark Green Powder
- Odor & Taste: Characteristic
- Extract Ratio: 10:1
- Active Components: Fatty Acid ≥40%, Protein ≥60%
- Extraction Method: Solvent Extraction
- Particle Size: 95% Pass 80 Mesh
- Bulk Density: 0.40–0.70 g/ml
- pH (1% Solution): 5.0–7.0
- Solubility: Dispersible in Water
- Moisture: ≤5.0%
- Ash Content: ≤5.0%
- Heavy Metals: ≤10 ppm
- Total Plate Count: ≤1,000 CFU/g
- Packaging: 1kg / 5kg / 25kg
- Shelf Life: 24 Months
Quality Assurance & Analytical Verification
Each production lot is subjected to comprehensive testing in qualified laboratories to confirm identity, potency, purity, and safety. Our analytical protocols adhere to internationally recognized methods for botanical raw materials and dietary ingredients.
Safety & Contaminant Panel
- Heavy Metals: ≤10 ppm (Lead ≤3.0 ppm, Arsenic ≤2.0 ppm, Cadmium ≤1.0 ppm, Mercury ≤0.1 ppm)
- Total Plate Count: ≤10,000 CFU/g
- Yeast & Mold: ≤1,000 CFU/g
- E. coli: Negative / 10g
- Salmonella: Negative / 25g
- Staphylococcus aureus: Negative / 10g
- Pesticide Residues: Compliant with EU Regulation Requirements
- Solvent Residues: Compliant with USP Requirements
- Aflatoxin B1: ≤5 ppb
- Total Aflatoxins (B1+B2+G1+G2): ≤10 ppb
Certificate of Analysis (COA) – Typical Batch Results
| Test Item | Specification | Result | Test Method |
|---|---|---|---|
| Product Name | Pumpkin Seed Extract Powder | Complies | - |
| Botanical Name | Cucurbita pepo L. | Complies | Macroscopic Identification |
| Plant Part Used | Seed | Complies | - |
| Appearance | Fine Powder | Complies | Visual Inspection |
| Color | Light Yellow to Greenish Powder | Complies | Visual Inspection |
| Odor | Characteristic | Complies | Organoleptic Method |
| Taste | Characteristic | Complies | Organoleptic Method |
| Extract Ratio | 10:1 | Complies | Calculation |
| Active Ingredient (Total Fatty Acids) | ≥40% | 42.6% | GC |
| Protein Content | ≥60% | 61.8% | Kjeldahl Method |
| Moisture | ≤5.0% | 3.2% | Karl Fischer / AOAC |
| Ash Content | ≤5.0% | 2.8% | AOAC |
| Particle Size | 95% Pass 80 Mesh | Complies | Sieve Analysis |
| Bulk Density | 0.40–0.70 g/ml | 0.56 g/ml | USP Method |
| Solubility | Dispersible in Water | Complies | Visual Inspection |
| pH (1% Solution) | 5.0–7.0 | 6.2 | pH Meter |
| Heavy Metals | ≤10 ppm | Complies | ICP-MS |
| Lead (Pb) | ≤3.0 ppm | 0.21 ppm | ICP-MS |
| Arsenic (As) | ≤2.0 ppm | 0.08 ppm | ICP-MS |
| Cadmium (Cd) | ≤1.0 ppm | 0.05 ppm | ICP-MS |
| Mercury (Hg) | ≤0.1 ppm | <0.01 ppm | ICP-MS |
| Total Plate Count | ≤10,000 CFU/g | 860 CFU/g | AOAC |
| Yeast & Mold | ≤1,000 CFU/g | 120 CFU/g | AOAC |
| E. coli | Negative / 10g | Negative | AOAC |
| Salmonella | Negative / 25g | Negative | AOAC |
| Staphylococcus aureus | Negative / 10g | Negative | AOAC |
| Pesticide Residues | Meet EU Regulation Requirements | Complies | GC-MS |
| Solvent Residues | Meet USP Requirements | Complies | GC |
| Aflatoxin B1 | ≤5 ppb | <1 ppb | HPLC |
| Total Aflatoxins (B1+B2+G1+G2) | ≤10 ppb | <2 ppb | HPLC |
| Storage Condition | Store in cool, dry place away from direct sunlight | Complies | - |
| Shelf Life | 24 Months | Complies | - |
| Packaging | 25kg/drum or customized | Complies | - |
Industry Applications & Formulation Compatibility
Pumpkin Seed Extract Powder is a versatile botanical ingredient suitable for a broad spectrum of B2B product categories:
Dietary Supplements & Nutraceuticals
Ideal for two-piece capsules, tablets, softgel fill formulations, and powder sachets. The standardized fatty acid and protein profile supports consistent label claims in men’s wellness, prostate support, and general nutrition supplement lines.
Functional Foods & Beverages
Integrates efficiently into protein bars, meal-replacement powders, baked goods, and nutritional beverage bases. Its water-dispersible nature and characteristic plant-derived protein fraction simplify incorporation into complex food matrices without excessive processing complications.
Natural Cosmetics & Personal Care
Utilized in topical formulations where plant-based extracts are valued for their lipid and antioxidant-associated nutrients, including creams, lotions, serums, and hair-care preparations.
Formulation Compatibility Notes
The extract exhibits favorable flow characteristics and bulk density for standard supplement excipients and food carriers. Formulators should maintain processing environments within the pH 5.0–7.0 range and protect the material from prolonged exposure to high heat and moisture to preserve active stability throughout finished-product shelf life.
Packaging, Storage & Shelf Life
- Primary Packaging: Food-grade, multi-layer sealed containers available in 1kg, 5kg, and 25kg drums. Custom private-label and OEM packaging configurations are available upon request.
- Storage Recommendations: Store in a cool, dry warehouse environment away from direct sunlight and strong odors. Containers should remain tightly sealed between uses to prevent moisture ingress.
- Shelf Life: 24 months from the date of manufacture under recommended storage conditions.
- Stability: The extract maintains physical homogeneity and chemical marker stability when protected from excessive humidity and thermal stress.
Why The Extract Factory Is Your Preferred Pumpkin Seed Extract Supplier
Traceable Raw Material Supply
We collaborate with qualified pumpkin seed suppliers and enforce rigorous incoming inspection protocols to guarantee botanical identity, cleanliness, and oil-content suitability prior to extraction.
Standardized Extract Production
Dual standardization on total fatty acids and protein ensures that every production lot delivers predictable potency for precise formulation and accurate supplement facts labeling.
Complete Documentation Support
We supply Certificates of Analysis, detailed specification sheets, safety summaries, and quality documentation to streamline your raw material qualification, vendor auditing, and regulatory submission processes.
Flexible Bulk & OEM Services
From 1kg sample orders to full 25kg drum bulk supply, we scale with your production schedule. Custom particle sizes, bulk densities, and packaging formats are available to meet contract manufacturer and private-label brand requirements.
Rigorous Quality Systems
Each batch is tested for identity, active compound potency, microbiological safety, heavy metals, mycotoxins, pesticide residues, and residual solvents to meet international standards for dietary ingredients and food-grade botanicals.
Frequently Asked Questions
What is Pumpkin Seed Extract Powder used for?
It serves as a standardized botanical ingredient in dietary supplements, nutraceutical formulations, functional foods, and natural cosmetic products. Its protein and fatty acid content make it particularly suitable for men’s wellness, sports nutrition, and general health supplement lines.
What specifications are available?
We offer Pumpkin Seed Extract standardized to ≥40% total fatty acids and ≥60% protein content. Custom extract ratios, particle sizes, and bulk packaging solutions can be arranged according to your formulation requirements.
Do you provide COA and testing documents?
Yes. Every bulk shipment includes a comprehensive Certificate of Analysis, product specification sheet, and supporting quality documentation to facilitate your incoming QC, vendor qualification, and finished product registration processes.
Do you support OEM or private-label supply?
Absolutely. We provide OEM customization, tailored bulk packaging, and white-label ingredient solutions for supplement brands, contract manufacturers, and international distributors.
What are the recommended storage and shelf life?
The extract should be stored in a cool, dry place away from direct sunlight and moisture. When stored under recommended conditions, it retains stability and active marker integrity for 24 months from the manufacturing date.
Request a Quotation & Custom Supply Options
The Extract Factory delivers standardized Pumpkin Seed Extract Powder with verified potency, full supply-chain traceability, and flexible OEM solutions engineered for global supplement, functional food, and cosmetic manufacturers. Contact us today at [email protected] to request a detailed quotation, review batch-specific COAs, or discuss customized bulk supply and private-label configurations tailored to your procurement requirements.
