The Extract Factory is a leading manufacturer and bulk supplier of premium Kudzu Root Extract in China, delivering consistent quality, competitive pricing, and full-batch traceability for B2B purchasers worldwide. Our standardized Pueraria lobata extract is engineered to meet the rigorous demands of dietary supplement manufacturers, functional food formulators, and international ingredient distributors seeking reliable botanical raw materials.
Why Source Kudzu Root Extract from The Extract Factory?
Botanical Selection & Terroir Advantage
We cultivate and source Pueraria lobata from Ankang City, Shaanxi Province, a region whose climate and soil chemistry naturally yield robust root systems. Unprocessed Ankang kudzu root typically contains 2%–6% total flavonoids, providing a rich phytochemical foundation before extraction even begins. Our procurement team screens every incoming lot for varietal authenticity, root integrity, and post-harvest freshness to ensure that only superior biomass enters the production stream.
Refined Extraction & Purification
To maximize isoflavone recovery while protecting heat-sensitive actives, we utilize a controlled solvent extraction platform:
- Solvent System: Food-grade ethanol at 30%–70% concentration selectively solubilizes target flavonoids.
- Thermal Management: Extraction temperatures are held between 50°C and 70°C to prevent degradation of puerarin and related isoflavones.
- Multi-Stage Reflux Purification: A fine reflux distillation sequence strips away extraneous plant matrix and concentrates the bioactive fraction, resulting in a Kudzu Root Extract with enhanced activity profile and long-term stability.
Chemical Profile & Botanical Identity
Kudzu Root Extract is derived from the roots of Pueraria lobata (Willd.) Ohwi, a traditional botanical prized for its high isoflavone content. The primary marker compounds include puerarin, daidzin, daidzein, and broader flavonoid fractions that serve as the functional backbone for nutritional formulations. Our analytical verification protocol standardizes total flavonoid content, giving manufacturers the batch-to-batch uniformity required for compliant finished products.
The resulting extract is a brownish-yellow fine powder with excellent flow properties, making it compatible with capsule, tablet, and powdered beverage matrices.
Technical Specifications & Quality Standards
Physical & Chemical Characteristics
- Appearance: Yellow-brown fine powder
- Odor: Characteristic aroma of kudzu root flavonoids
- Taste: Distinctive taste profile consistent with Pueraria lobata
- Bulk Density (Slack): 0.53 g/ml — USP 616
- Particle Size: 95% through 80 mesh — CP 2020
- Moisture: ≤5% (Recorded at 3.24% — CP 2020, 105°C, 4 h)
- Ash: ≤5% (Recorded at 3.15% — CP 2020)
Active Constituent Assay
- Total Flavonoids: ≥10% (Verified at 10.32% by UV spectrophotometry)
Safety & Purity Limits
- Total Heavy Metals: <10 ppm — Conforms to CP 2020
Microbiological Control
- Aerobic Bacterial Count: ≤1,000 CFU/g — Conforms to GB 4789.2
- Yeast: ≤100 CFU/g — Conforms to GB 4789.15
- Mold: ≤100 CFU/g — Conforms to GB 4789.15
- Escherichia coli: <3.0 MPN/g — Conforms to GB 4789.38
- Salmonella: Not Detected — Conforms to GB 4789.4
- Staphylococcus aureus: Not Detected — Conforms to GB 4789.10
Functional Benefits & Commercial Applications
Kudzu Root Extract is a versatile botanical ingredient with demonstrated utility across multiple industrial sectors:
- Dietary Supplements: Standardized flavonoid content makes it ideal for capsule and tablet formulations targeting cardiovascular support, metabolic wellness, and antioxidant protection.
- Functional Foods & Beverages: Integrates into powdered drink mixes, meal-replacement systems, and nutritional fortification programs where botanical credentials are required.
- Traditional & Modern Herbal Formulations: Supports phytotherapeutic protocols that rely on consistent isoflavone dosing.
- Sports Nutrition & Cognitive Health: Emerging applications in adaptogenic and neuro-supportive blends.
- Cosmetic & Personal Care: Leveraged in topical wellness products for its antioxidant properties.
Processing Integrity & Supply Assurance
Our production pipeline is governed by stringent in-process controls that monitor extraction efficiency, solvent recovery, drying curves, and milling parameters. By controlling every stage—from varietal selection in Shaanxi to final 80-micron milling—we eliminate variability risks and deliver a Kudzu Root Extract that demonstrates:
- High Stability: Low moisture and ash thresholds (both controlled within 5%) inhibit microbial proliferation and extend shelf life.
- Excellent Solubility Profile: Compatible with aqueous and hydro-alcoholic systems common in functional beverage manufacturing.
- Full Traceability: Each production lot is linked to its raw material harvest batch for complete supply-chain transparency.
Packaging, Storage & Handling Recommendations
- Packaging: Bulk orders are supplied in standard industrial drums with food-grade polyethylene inner liners. Custom packaging configurations and private-label documentation are available upon request.
- Storage: Store in a cool, dry, well-ventilated environment away from direct sunlight and strong odors. Reseal containers immediately after each use to preserve powder flowability and prevent moisture ingress.
- Shelf Stability: When handled under recommended storage conditions, the product maintains its physical and chemical integrity throughout its commercial lifespan.
Partner with The Extract Factory
For contract manufacturers, brand owners, and wholesale distributors, our Kudzu Root Extract offers the standardized potency, comprehensive documentation, and supply reliability required to de-risk your procurement pipeline. Whether you are formulating for cardiovascular health, digestive wellness, weight management, or sports performance applications, this extract provides a scientifically grounded, nature-derived platform ingredient.
Contact our technical sales team at [email protected] to request a certificate of analysis, samples, or a competitive bulk quotation. Let The Extract Factory become your trusted supply partner for premium botanical extracts.
