The Extract Factory is a trusted manufacturer and wholesale supplier of premium Pueraria Lobata Root Extract, delivering standardized, high-purity botanical ingredients to nutraceutical, pharmaceutical, functional food, and cosmetic formulators worldwide. Leveraging decades of extraction expertise and a vertically integrated supply chain rooted in China’s primary botanical growing regions, we provide bulk Kudzu Root Extract with guaranteed potency, full traceability, and competitive factory-direct pricing.
Premium Source & Botanical Profile
Our Pueraria Lobata Root Extract is derived from the roots of Pueraria lobata (Willd.) Ohwi, commonly known as kudzu, harvested at peak maturity from the pristine, mountainous terrain surrounding Ankang City in Shaanxi Province. This region’s unique subtropical climate and mineral-rich soils foster robust root development and high secondary metabolite accumulation.
The principal bioactive marker is Puerarin (CAS No. 3681-99-0, Molecular Formula: C21H20O9), a unique isoflavone C-glycoside renowned for its stability and broad biological activity. Depending on the purity grade, our extracts also contain synergistic isoflavones including daidzin and genistin, contributing to the ingredient’s comprehensive antioxidant, anti-inflammatory, and vascular-supportive properties. We offer standardized concentrations ranging from 10% to 98% Puerarin by HPLC, with corresponding powder colors transitioning from brownish-yellow to white as purity increases.
Advanced Extraction & Manufacturing
Quality begins at the source. Roots are selectively harvested during the optimal seasonal window to ensure maximum freshness and isoflavone density. Following rigorous washing and slicing, raw materials undergo controlled air drying at 40–50°C to reduce moisture without thermally degrading heat-sensitive flavonoids. The dried roots are precision-ground to increase surface area and improve mass transfer.
Our manufacturing protocol integrates pressure-enhanced solvent permeation with ultrasonic-assisted extraction (UAE). By using food-grade ethanol at controlled temperatures (45–55°C) for 45–60 minutes, acoustic cavitation disrupts cellular matrices and accelerates the release of Puerarin into the solvent matrix. This low-temperature approach minimizes the degradation of active constituents while delivering high yield and excellent economy of scale.
Post-extraction, the solution undergoes multi-stage filtration to remove particulates and insoluble matter. A rotary evaporator concentrates the filtrate under vacuum at 40–50°C, recycling solvent and enriching the isoflavone fraction. The concentrated extract is then subjected to controlled crystallization and recrystallization to isolate high-purity Puerarin crystals. Final steps include low-temperature vacuum drying, precision milling to achieve uniform particle size, and comprehensive sieving to ensure ≥95% passage through an 80-mesh screen.
Quality Control & Analytical Specifications
Every production lot is verified in our in-house laboratory using validated analytical methods. We adhere to stringent internal standards aligned with CP, USP, and international dietary supplement GMP guidelines.
Standard Product Specifications
| Attribute | Specification | Test Method |
|---|---|---|
| Appearance | Fine powder | Visual |
| Color | Brownish-yellow to White | Visual |
| Odor & Taste | Characteristic of Puerarin | Organoleptic |
| Bulk Density | ~0.43 g/mL (slack) | USP <616> |
| Particle Size | ≥95% through 80 mesh | CP2015 |
| Puerarin (HPLC) | ≥98% (Typical: 98.45%) | HPLC |
| Moisture | ≤1.0% | CP2015 (105°C, 4h) |
| Ash | ≤5.0% | CP2015 |
| Total Heavy Metals | <10 ppm | CP2015 |
| Total Aerobic Microbial Count | ≤1,000 CFU/g | GB4789.2 |
| Yeast & Mold | ≤100 CFU/g | GB4789.15 |
| Escherichia coli | <3.0 MPN/g | GB4789.38 |
| Salmonella | Not Detected | GB4789.4 |
| Staphylococcus aureus | Not Detected | GB4789.10 |
Physical & Chemical Characteristics
High-purity Pueraria Lobata Root Extract exhibits characteristic solubility profiles: it is readily soluble in ethanol-based systems and can be successfully incorporated into aqueous formulations with the aid of suitable dispersing agents, emulsifiers, or cyclodextrin complexes to enhance bioavailability. The extract is light- and heat-sensitive; prolonged exposure to elevated temperatures or direct sunlight may cause isoflavone oxidation and color darkening.
Functional Properties & Health Applications
Puerarin and its associated isoflavones have been extensively studied in preclinical and clinical literature for their multifaceted physiological roles:
- Antioxidant Defense: Neutralizes reactive oxygen species (ROS) and supports endogenous antioxidant enzyme systems, helping to mitigate oxidative cellular damage.
- Vascular & Circulatory Support: Promotes healthy blood flow and microcirculation, supporting cardiovascular function through vasodilation and endothelial protection.
- Neuroprotective Potential: Supports cerebral blood flow and neuronal resilience, assisting cognitive clarity, memory retention, and adaptive stress responses.
- Anti-Inflammatory Action: Modulates inflammatory mediator pathways, offering soothing benefits in both systemic and topical applications.
- Metabolic & Hormonal Balance: Exhibits gentle phytoestrogenic activity, making it a valuable ingredient in women’s health and aging-support formulations.
Formulation Applications & Recommended Usage
Pueraria Lobata Root Extract is a versatile ingredient compatible with capsules, tablets, softgels, powdered drink mixes, functional foods, and topical skincare matrices.
Nutraceutical & Functional Food
- Dietary Supplements: Standardized extracts (10%–40% Puerarin) are ideal for cardiovascular, cognitive, and women’s health capsules or tablets.
- Sports Nutrition: Concentrated 20:1 extracts support energy metabolism, endurance, and post-exercise muscle recovery in pre-workout and recovery formulas.
- Beverages & Dairy: Low-dose incorporation into functional shots, plant-based milks, and wellness teas; dispersibility can be enhanced with lecithin or gum arabic.
Cosmeceutical & Topical Skincare
| Application | Function | Recommended Specification | Usage Rate |
|---|---|---|---|
| Anti-Aging | Stimulates collagen synthesis; improves firmness | 10% Standardized Extract | 1–5% in creams/serums |
| Skin Brightening | Inhibits melanin overproduction | 5% Standardized Extract | 1–2% in brightening serums |
| Hydration | Reinforces moisture barrier function | 5% Standardized Extract | 2–5% in moisturizers/masks |
| Soothing / Anti-Redness | Modulates topical inflammation | 10% Standardized Extract | 1–3% in calming creams |
| Antioxidant Protection | Scavenges environmental free radicals | 10% Standardized Extract | 1–3% in facial products |
Cognitive & Stress-Adaptogen Blends
- Memory & Focus: 100–300 mg/day of 10% standardized extract, often stacked with ginkgo or bacopa.
- Mental Clarity: 50–200 mg/day to support cerebral perfusion.
- Stress Modulation: 100–400 mg/day in adaptogenic combinations.
Note: The above usage levels are provided for formulation guidance only. Finished product claims and dosages should be verified against local regulatory requirements and target-market compliance standards.
Packaging, Storage & Shelf Life
We provide industrial packaging configurations designed to preserve stability during international transit and warehouse storage:
- Retail / Sample: 1 kg to 5 kg, double-sealed in aluminum foil bags with nitrogen flush.
- Bulk: 25 kg net weight, inner polyethylene liner and outer fiber drum or cardboard carton.
- Custom: OEM/ODM private labeling, custom batch sizes, and specialized packaging available upon request.
For maximum stability, store Pueraria Lobata Root Extract in its original, sealed container protected from light, heat, and moisture. While the product remains stable in ambient warehouse conditions (below 25°C) for standard inventory cycles, long-term retention of peak potency is best achieved under refrigerated storage (2–8°C). When stored under recommended conditions, the shelf life is 24 months from the date of manufacture or CoA issuance.
Certifications & Compliance
The Extract Factory operates under comprehensive quality management systems. Our facility and processes are certified and audited for:
- ISO 22000 (Food Safety Management)
- HALAL and KOSHER compliance
- Export Commodity Inspection eligibility
- cGMP-aligned manufacturing protocols for dietary supplement ingredients
All shipments include a detailed Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and regulatory documentation to streamline your importation and quality acceptance procedures.
Customization & B2B Partnership
Beyond our standard 10%–98% Puerarin grades, The Extract Factory offers comprehensive OEM and ODM services. Our R&D team can engineer bespoke ingredient blends—combining Kudzu Root Extract with complementary botanicals such as Hawthorn, Salvia miltiorrhiza, or Panax ginseng—to meet your precise functional targets. Whether you require formulation prototyping, stability testing, or private-label bulk manufacturing, we deliver scalable solutions supported by technical documentation and responsive account management.
Contact Us
Elevate your product line with a reliable, fully traceable Pueraria Lobata Root Extract. From raw material sourcing to final QC release, The Extract Factory ensures the purity, potency, and consistency your formulations demand.
Email: [email protected]
Inquiry: Request a quote, technical data sheet, or complimentary sample today.
