Saponin Standardization & Grades
The root of Platycodon grandiflorus (Jacq.) A.DC. is a rich source of triterpenoid saponins called platycosides, which are built on the aglycones platycodigenin and polygalacic acid and carry sugar chains at two positions. The best-known of them, platycodin D, is a defining compound of the root, and the family is the reason the root foams when it is boiled in water. Standardizing a Platycodon grandiflorus extract to total saponins gives buyers one figure for this fraction as a group.
| Grade | Assay & Method | Where It Fits |
|---|---|---|
| 10% Saponins | UV | Drink powders, higher-inclusion blends |
| 50% Saponins | UV | Capsules and tablets, small fill weight |
The span is fivefold, so grade choice follows dose and carrier. At 50% the extract carries five times the saponin of the 10% grade per gram, which allows a compact capsule. At 10% the powder keeps more of the root matrix, including inulin-type fructans, and dissolves quickly into beverages. The same root is also supplied as a 10:1 ratio extract without a marker figure, the Balloon Flower Root Extract Powder, and as a milled root, Balloon Flower Root Powder.
The root is the only part used. Leaves, stems and flowers of the plant carry little of the saponin fraction and are not part of this identity.
The root is harvested after two to three years, when the swollen taproot is large. It is washed, and in some traditions peeled, then sliced and dried before extraction, and the peeled and unpeeled material differ in their saponin share because the cork carries part of it. A Platycodon grandiflorus extract is therefore defined by the species, the root and the saponin figure.












