Withania Somnifera Root Powder

Advanced Processing Technology

Shaanxi Rebecca Biotechnology adopts the pharmaceutical grade low-temperature drying and ultra-fine grinding technique. This retains the heat sensitive withanolides and yields homogenous particle dispersion required for tablet compression and capsule filling. Our two-stage pulverisation eliminates coarse fibre without chemical solvents.

Strict Quality Assurance

Every production batch is third party tested for 190+ pesticide residues, aflatoxins and heavy metals. In our quality control laboratory HPLC is used to verify the active constituents to ensure consistent withanolide concentrations in each shipment. ISO22000, HACCP and FSSC22000 certifications assure food safety management compliance.

Flexible Customisation Service

For example, you might need 1.5% natural whole root powder for organic blends or 20% high-purity extract for clinical-grade formulae, and we’re happy to customise to your needs. OEM/ODM services encompass customised particle size, moisture level and dosage form formulation – from water-soluble spray-dried powders to microencapsulated beadlets.

Global Supply Chain Expertise

We are completely vertically integrated from our grow partnerships all the way to finished product packaging. This allows us to offer affordable prices while maintaining traceability. Direct sourcing from arid high altitude locations guarantees superior withanolide characteristics. We also have warehouses in major markets for quick delivery and reliable supplies for large enterprises.

We manufacture to strict pharmaceutical standards to retain bioactive integrity:

Stage 1: Raw Material Inspection

The incoming roots are visually inspected and analysed by HPLC fingerprinting to validate species authenticity. Only mature roots satisfying withanolide thresholds are processed, with stems, leaves and immature specimens rejected.

Stage 2: Low-Temperature Controlled Drying

The proprietary hot-air circulation at 50-60°C lowers the moisture to less than 5% without thermal degradation of withanolides. Continuous monitoring assures the uniformity of drying within the batches.

Stage 3: Cryogenic milling

First coarse milling and then ultra fine pulverisation with the help of liquid nitrogen. Particle size 80-100 mesh. This approach prevents the formation of heat that could harm the bioactive chemicals.

Stage 4: Multi-Stage Purification

Metallic pollutants are removed using magnetic separation. Vibrating sieves and air classification are used to remove remaining fibres and large particles, assuring pharmaceutical-grade purity.

Stage 5: Mixing & Homogenising

Three-dimensional V-blenders are used to combine several production lots to standardise colour, texture and withanolide content to contract standards.

Step 6: Sterilisation by Physical Means

Steam sterilisation or gamma irradiation reduce the microbial load to <1000 cfu/g without any chemical residues and so the product remains eligible for organic certification.

Stage 7: Pharmaceutical Packaging

The fibre drums are lined with double-sealed aluminium foil bags for light protection and moisture barrier. Nitrogen flushing helps to improve shelf life by reducing oxidative discolouration.

Stage 8: Batch Release Documentation

Every batch is provided with a full Certificate of Analysis (COA) with chromatographic profiles, heavy metals report and pesticide screening findings.

Primary Packaging Options

· Small Volume: 1kg aluminum foil bag with resealable zipper, ideal for R&D sampling and small-batch production

· Commercial Scale: 5kg, 10kg, or 25kg double-layer food-grade PE bags with heat-sealed closure, placed inside corrugated fiber drums with desiccant packets

· Bulk Orders: 50kg PE-lined multi-wall kraft bags or 200kg steel drums with nitrogen purging for maximum stability during transit

Secondary Protection

All containers are equipped with tamper-evident seals and humidity indicators. The stretch film wrapping helps in palletization and avoids the damage during handling. Thermal blankets or refrigerated containers are included for temperature sensitive shipments as necessary.

International Logistics Network

We utilise approved international freight forwarders with door to door services. Normal lead time is 7-10 business days for air freight, 25-30 days for sea shipment. Real-time tracking and proper documentation (Phytosanitary Certificate, COA, MSDS) for seamless customs clearance in locations including North America, EU, South-east Asia and Australia.

Compliance with Regulations

Our Withania Somnifera Root Powder is USDA Organic, EU Organic, Halal and Kosher. Pre-shipment samples are available on request and bulk purchases are made after quality check. For technical or ordering information, please email info@sxrebecca.com.

Q: Is the stuff 100% dried root without stems or adulterants?

A: Yes, only pure mature ashwagandha roots are processed, no aerial portions or additives.

Q: Are you quantifying withanolides by HPLC using marker compounds?

A: Each batch is HPLC-verified for total withanolides, including Withaferin A and Withanolide A, on the COA certificate.

Q: How do you handle pesticide residues and heavy metals?

A: Every batch is tested against over 190 EU pesticide screens and ICP-MS heavy metal tests to meet international safety criteria.

Q: Can you meet organic and clean-label requirements?

A: For sure. Physical sterilisation processes remove chemical residues and support organic certifications and natural product claims.

Partner with Shaanxi Rebecca Biotechnology for reliable, science-backed Withania Somnifera Root Powder that elevates your formulations. Reach out today at information@sxrebecca.com to request samples or discuss custom specifications.