1. How Do We Solve Your Quality Inconsistency Problem?

Variable raw materials lead to variable finished products. That is why we place validated analytics at the core of our production. We quantify polysaccharide content using the phenol‑sulfuric acid method with a glucose standard, guaranteeing content levels of 10%, 20%, 30%, 40%, 50%, 60%, or 70% with batch‑to‑batch reproducibility. Additionally, we conduct HPLC‑based monosaccharide composition analysis to confirm the characteristic ratio of glucose, galactose, arabinose, and rhamnose, ensuring the botanical identity and bioactivity of the extract. Each shipment includes a comprehensive Certificate of Analysis (CoA) with test results for polysaccharide content, heavy metals (lead, arsenic, cadmium), pesticide residues, and microbial limits (total plate count, yeast, mold, Salmonella, E. coli). Consequently, you can validate incoming material quickly and launch your products with total confidence.

2. What Are Astragalus Polysaccharides, and Why Is Our Extraction Superior?

Astragalus Polysaccharides are the active macromolecular components derived from the dried root of Astragalus membranaceus. They are composed of a complex mixture of glucose, galactose, arabinose, and rhamnose, with molecular weights ranging from 10,000 to over 100,000 Da. These compounds are responsible for the root’s well‑documented immunomodulatory, antioxidant, and adaptogenic activities.

We source our Astragalus roots from certified organic farms in the Gansu and Shanxi provinces of China, the plant’s primary cultivation regions. We use a proprietary water‑extraction and ethanol‑precipitation process followed by membrane filtration to concentrate the active polysaccharides while removing starches, proteins, and low‑molecular‑weight impurities. Unlike suppliers who rely on crude extraction, our process yields a light brown to yellow‑brown free‑flowing powder with consistent polysaccharide content and a mild, characteristic taste.

3. Matching the Right Grade to Your Product Line

Your application is unique, and your ingredient grade should reflect that. We offer Astragalus Polysaccharides in multiple standardised content levels to match your specific formulation needs:

• 10%‑30% Grade: Ideal for food, beverage, and powdered supplement applications where mild activity and cost‑efficiency are priorities.

• 40%‑60% Grade: Designed for high‑potency capsules, tablets, and liquid nutraceuticals targeting immune support, sports recovery, or anti‑aging benefits.

• 70% Grade: Suitable for clinical research, pharmaceutical development, or premium cosmetic formulations requiring maximum activity and minimal excipients.

Tell us your product format, dosage target, and market positioning. We will recommend the most cost‑effective and technically suitable grade.

4. Solving Your Formulation & Stability Problems

A common frustration with plant polysaccharides is their poor solubility, dark color, and tendency to precipitate over time. Our Astragalus Polysaccharides are processed to address these issues. The powder is soluble in water (producing a clear to slightly opalescent solution) and sparingly soluble in ethanol. The color ranges from light brown to yellow‑brown, depending on the concentration. It is stable at pH 4‑9 and heat‑stable up to 80°C, making it suitable for beverages, syrups, and heat‑processed foods. For use levels, we recommend 0.5‑5% in food, 1‑10% in supplements, and 0.1‑2% in cosmetics.

5. Eliminate Inventory Waste with Proper Storage Guidelines

A hidden operational cost is ingredient degradation in the warehouse. Our Astragalus Polysaccharides are stable when stored correctly. First, keep them in a cool, dry place (15‑25°C) away from direct sunlight and moisture. Next, use tightly sealed, airtight containers to prevent moisture absorption and microbial growth. For long‑term storage, refrigeration at 2‑8°C is recommended. Under these conditions, the product maintains its full activity and appearance for 24 months from the date of manufacture. This extended shelf life allows you to purchase in cost‑effective bulk quantities without fear of degradation.

Stop Compromising on Polysaccharide Consistency. Start Using a Standardized, Trusted Source.

We have eliminated the guesswork and risk from sourcing Astragalus Polysaccharides. Our commitment to validated phenol‑sulfuric acid and HPLC testing, organic sourcing, and transparent documentation is designed to make your procurement and formulation process effortless. We are not just a raw material vendor; we are your partner in creating science‑backed immunomodulatory products that consumers trust.

Ready to standardize your Astragalus supply?
Contact our technical sales team today to request a comprehensive specification sheet, a full Certificate of Analysis (CoA), or a sample for your own stability and efficacy testing.