Astragalus Membranaceus Root Extract

Astragaloside IV 0.3%-98%
Astragalus polysaccharide 50%
Cycloastragenol 1-98%

  • Botanical Source: Root
  • Latin name: Scutellaria baicalensis
  • Appearance: Astragaloside IV: Brownish yellow powder (0.3%, 1%, 5%, 10%), light yellow powder (70%, 90%), white powder (98%); Astragalus polysaccharide 50% : Brownish-yellow powder
  • Molecular formula: C41H68O14
  • Molecular weight: 784.97
  • CAS No. : 84687-43-4
  • Determination method: HPLC, UV

What’s Astragalus Root Extract?

Astragalus membranaceus(Astragalus propinquus), also known as Astragalus root, Radix Astragali or Huang Qi. Astragalus is a member of the pea family native to China, and Mongolia, which has been used in traditional Chinese medicine(TCM) for restorative tonic, promoting healing and reducing fatigue because it has excellent antioxidative properties. It found Astragalus membranaceus contains polysaccharides, saponins, flavonoids, amino acids and other active components, especially the polysaccharides. Researchers have isolated 13 of the polysaccharides from the root extract of Astragalus, which have complicated chemical structures, and have been used for tonifying Qi in TCM.

Astragalus extracts are used either alone or blended with other herbs such as Chinese skullcap extract to help with aging, improve energy, and stimulate the immune system during conditions such as the common cold, and blood disorders. It is also used as an adaptogen, which is meant to increase general resistance to stress and disease, and normalize disturbances in your body’s ability to balance itself. Astragalus root extract may help lower cholesterol levels, relieve seasonal allergy and reduce stress.

Astragalus Extract Specification

Categories Products Codes Specifications Test Method
Cycloastragenols RaBAS01 Cycloastragenol 5% HPLC
Astragalus Saponins RaBAS02 Astragaloside IV 0.3% HPLC
RaBAS03 Astragaloside IV 10% HPLC
RaBAS04 Astragaloside IV 20% HPLC
RaBAS05 Astragaloside IV 0.3% + total saponions 8% HPLC +UV
Astragalus Flavones RaBAS06 Calycosin-7-O-beta-D-glucoside 5% HPLC – UV
RaBAS07 Total Flavonoids 8% UV


RaBAS08 Polysaccharides  50% UV
RaBAS09 Polysaccharides  70% UV

About Rainbow® Biotech

Rainbow biotech is a private herbal extract factory, we have many years of experience in botanical extraction manufacturing that serves cosmetic manufacturers, animal feeding producers, food&beverage manufacturers. As a bulk supplier of Astragalus(Huang Qi) root extract, we supply the Astragaloside IV and Astragalus polysaccharide powder extracted from the herb Astragalus membranaceus, the raw material is traceable. Customized specifications and powder(liquid) are available for bulk orders, contact us to meet your distribution and manufacturing needs now!

Benefits of Astragalus Root

Astragalus extract was used in ancient Chinese medicine to enhance immunity, enhance energy, resist fatigue, resist mutation, protect the liver, and inhibit osteoclasts. Modern experiments have proved that APS can reduce blood lipid, that is, reduce cholesterol and triglyceride, increase high-density lipoprotein, and can prevent and treat cardiovascular and cerebrovascular diseases, such as atherosclerosis, coronary artery disease, peripheral vascular disease and hyperlipidemia.
Astragaloside IV can significantly reduce blood glucose, glycosylated hemoglobin and urinary protein, and can reduce AGEs in renal cortex and serum, suggesting that astragaloside IV has antioxidant effects, and inhibits aldose reductase and mesangial cell proliferation, and alleviates renal hypertrophy.

Ye Tao