Astragalus Polysaccharides (APS)
A water-extracted root preparation of Astragalus membranaceus, standardised on polysaccharide content with astragaloside IV confirmed by HPLC. One of the most widely used immune-support botanicals in the U.S. supplement market, and a reliable line item for capsule and powder manufacturers.
- Polysaccharides 20%, 40% or 50% (UV)
- Astragaloside IV 0.3% or 0.5% (HPLC)
- Water extraction, no solvent residue concerns
- Heavy metals and microbial limits tested per lot
From dried root slices to finished extract powder — one controlled process, one document set.
Specification
Standard production grade. Alternative assays, mesh sizes and carrier systems can be produced to your specification.
| Botanical name | Astragalus membranaceus (Fisch.) Bunge |
| Part used | Root |
| Extraction solvent | Water (food grade) |
| Assay — polysaccharides | 20% / 40% / 50% (UV-VIS) |
| Assay — astragaloside IV | 0.3% / 0.5% (HPLC) |
| Appearance | Light brown to yellow-brown fine powder |
| Odour & taste | Characteristic, slightly sweet |
| Particle size | 80 mesh (standard), 100 mesh on request |
| Loss on drying | ≤ 5.0% |
| Total ash | ≤ 5.0% |
| Carrier / excipient | None (pure extract) or maltodextrin on request |
| Packing | 25 kg fibre drum, double polyethylene liner |
| Shelf life | 24 months in unopened original packing |
| Storage | Cool, dry, away from direct sunlight |
Typical Certificate of Analysis
Indicative values for a standard lot. The actual COA for your batch is issued on our letterhead and accompanies the shipment.
| Test | Result |
|---|---|
| Polysaccharides (UV) | 50.4% |
| Astragaloside IV (HPLC) | 0.52% |
| Loss on drying | 3.8% |
| Total ash | 3.1% |
| Lead (Pb) | < 1 ppm |
| Arsenic (As) | < 0.5 ppm |
| Cadmium (Cd) | < 0.3 ppm |
| Mercury (Hg) | < 0.05 ppm |
| Total plate count | < 1,000 cfu/g |
| Yeast & mould | < 100 cfu/g |
| E. coli / Salmonella | Negative |
Typical applications
- Immune-support capsules and tablets
- Adaptogen and daily-wellness blends
- Functional powders and stick packs
- Herbal tea and beverage concentrates
- Traditional-medicine inspired formulas
Packing & lead time
- 25 kg fibre drum with double PE liner (standard)
- 1 kg and 5 kg foil bags for samples and pilot runs
- Lead time, step by step: in-stock items ready in about 2 days; bulk production 3–5 working days after deposit for standard grades
- Transit: Xi'an → Shenzhen consolidation about 3 days, then air freight about 6 days to major U.S./EU airports; sea freight 18–25 days
Questions buyers ask about this product
Which grade should I choose for a capsule product?
Most capsule manufacturers use the polysaccharides 50% grade, because the label claim ("Astragalus Polysaccharides (APS) 10:1" or "standardised to 50% polysaccharides") is easiest to support. If your label claims astragaloside IV instead, the 0.5% grade is the more common choice.
Is the extract water-only?
Yes, our standard grade is water-extracted, which keeps residual solvent concerns off the table for most markets. Ethanol-water extraction is available if you need a different profile.
Can you pack under our own brand?
Yes. We can ship in your branded drums or bags and apply your labels. Artwork and label files are handled under confidentiality.
What does the sample cost?
Samples are always drawn from production lots, so you test the real material. How much we can supply free of charge depends on the item's value; anything beyond that is billed at cost plus courier and quoted up front, so there is no ambiguity later.
Get the documents for this product
Leave your work email and we will send the full specification sheet (PDF) and a sample Certificate of Analysis for Astragalus Polysaccharides (APS). No automated marketing — a real reply from the person who handles your order.
Request a quotation for Astragalus Polysaccharides (APS)
Tell us the grade, quantity and target price if you have one. We reply within one business day with pricing, lead time, packing options and the full documentation list.
Related products
Other extracts we produce under the same QC and documentation standard.
Request a quotation for Astragalus Polysaccharides (APS)
Tell us the grade and quantity you need. You will receive pricing, lead time, packing options and the documentation list within one business day.