Panax notoginseng Polysaccharide Identity
Panax notoginseng polysaccharide powder comes from the root of Panax notoginseng (Burkill) F.H.Chen ex C.H.Chow, a mountain perennial also called sanqi or tianqi. Panax notoginseng root is the only part used; the flower and leaf of the plant are separate materials and are not included. A common naming mistake is “tusanqi”, a name that usually points to plants of the genus Gynura rather than to Panax.
Panax notoginseng root stores a large amount of starch, and the polysaccharides of interest are the acidic, pectin-like polymers, with arabinose and galactose in their side chains, that accompany it. Hot-water extraction brings both types out, along with dammarane saponins such as notoginsenoside R1 and ginsenosides Rb1 and Rg1. The purified powder keeps the carbohydrate fraction and sheds most of the starch and saponin.
The plant is perennial and slow, with roots dug after about three years in the field. Root size and age change the starch share, which is why purification, not the raw root, sets the carbohydrate profile of Panax notoginseng polysaccharide. Rhizome, main root and rootlets are processed as root, and only the dried root enters extraction.
Related notoginseng products differ in what they define. Notoginseng Extract Powder is a ratio extract of the root, Panax Notoginseng Extract 5–80% Total Saponins is a saponin-assay product, and Ginsenoside Rb1 98% is a single purified compound.












