Polygala Root Extract Powder

Polygala Root Extract Powder is a concentrated botanical ingredient produced from the root of Polygala tenuifolia Willd., a species in the Polygalaceae family. Also known commercially as Yuan Zhi, Polygalae Radix, and thin-leaf milkwort root, the extract is supplied as a dry powder for dietary supplements, botanical blends, and concentrated herbal formulations.

Commercial formats include 5:1, 10:1, 20:1, and 30:1 ratio extracts, with 10:1 representing the principal conventional sourcing grade. Standardized extracts are also available based on total Polygala saponins, including 8%, 10%, and 20% grades. Ratio extracts and standardized extracts represent different specification systems and should be evaluated separately during sourcing.

SKU: BOT-BEX-0517 Categories: Botanical Extracts, Root & Rhizome Extracts Tags: Cognitive Support, Onjisaponins, Polygala Root, Polygala tenuifolia, Root, Saponins

Ingredient Profile & Common Uses

Polygala tenuifolia root extract differs from untreated root powder because extractable constituents are concentrated before the material is converted into a dry ingredient. Its characteristic phytochemical profile includes triterpenoid saponins, oligosaccharide esters, and xanthone derivatives. Tenuifolin, 3,6′-O-disinapoyl sucrose, and polygalaxanthone III are important reference constituents associated with the botanical.

Commercial grades follow two main specification approaches. Ratio extracts describe the relationship between starting botanical material and finished extract rather than the concentration of an individual constituent. Standardized grades instead define a measurable chemical fraction, commonly through total Polygala saponins or a specified analytical marker. These formats serve different formulation and quality-control requirements.

The extract is primarily used in concentrated dietary supplements, multi-botanical powders, traditional herbal products, and standardized botanical formulations. As a complex root extract rather than a purified compound, it contributes characteristic botanical color, taste, and dispersibility. Dry applications generally provide simpler handling, while liquid systems require additional physical-stability evaluation.

Application Areas

Dietary Supplement Capsules & Tablets

Concentrated ratio extracts and standardized grades are used in capsules and tablets where formulators require a smaller botanical mass than untreated Polygala root powder.

Multi-Botanical Powder Blends

Polygala root extract can be incorporated into premixes, sachets, and powdered supplement systems, with blend uniformity becoming particularly important at relatively low inclusion levels.

Traditional Herbal Products

Yuan Zhi and Polygalae Radix extracts are used in concentrated herbal formulations where an extract powder format is preferred to crude dried root material.

Standardized Botanical Formulas

Polygala saponin-standardized grades provide a chemically defined specification for formulations where a declared constituent level is more relevant than botanical extract ratio alone.

Typical Specifications

Parameter	Specification
Product Name	Polygala Root Extract Powder
Botanical Name	Polygala tenuifolia Willd.
Botanical Family	Polygalaceae
Common Names	Polygala Root · Yuan Zhi · Polygalae Radix · Thin-Leaf Milkwort
Plant Part	Root
Ingredient Type	Botanical Root Extract
Product Form	Powder
Available Ratio Extracts	5:1 · 10:1 · 20:1 · 30:1
Primary Commercial Grade	10:1 Extract Ratio
Standardized Grades	8% · 10% · 20% Total Polygala Saponins
Ratio Extract Identification	TLC
Standardized / Marker Analysis	Quantitative analytical method matched to the declared target; HPLC applicable to defined marker assays
Principal Saponin Reference	Tenuifolin
Characteristic Constituent Classes	Triterpenoid Saponins · Oligosaccharide Esters · Xanthones
Additional Reference Constituents	3,6′-O-Disinapoyl Sucrose · Polygalaxanthone III

Key Constituents & Extract Standardization

Polygala root contains several chemically distinct constituent groups rather than one dominant isolated active. Triterpenoid saponins are a major component class, accompanied by oligosaccharide esters and xanthone derivatives that contribute to the characteristic chemical profile of P. tenuifolia root.

Tenuifolin is a triterpenoid saponin reference compound with CAS 20183-47-5, molecular formula C36H56O12, and molecular weight of approximately 680.8 g/mol. These identifiers apply to tenuifolin itself rather than to the mixed botanical extract. 3,6′-O-disinapoyl sucrose belongs to the oligosaccharide ester fraction, while polygalaxanthone III is associated with the xanthone fraction.

Extraction ratio and chemical standardization therefore describe different product attributes. Extract ratio indicates botanical concentration, while standardized grades define a measurable constituent target. The two should be compared independently during supplier qualification and formulation development.

Technical & Quality Considerations

Botanical identity, plant part, and extract-ratio documentation are primary controls for conventional ratio extracts. TLC is commonly used for botanical identity evaluation, but it does not establish the quantitative concentration of total Polygala saponins or individual marker compounds. Ratio documentation and chemical assay data therefore answer different quality-control questions.

Standardized grades require a quantitative method matched to the declared analytical target. Total-saponin assays and individual-marker assays represent different specification systems, so the analytical method, reporting basis, and target constituent should be reviewed together when comparing materials. This distinction is particularly important when evaluating standardized extracts against conventional ratio grades.

During scale-up, dry formulations should be evaluated for premixing, blend uniformity, flow, capsule filling, and compression behavior. Liquid or suspension systems require separate assessment of wetting, dispersibility, sedimentation, haze, color contribution, and sensory impact under the intended formulation conditions.

Packaging & Commercial Supply

Essencefield supports product evaluation, formulation trials, commercial orders, and ongoing ingredient supply. Packaging, storage, and shipping arrangements are determined by product characteristics, order quantity, stability requirements, and destination-market needs.

Supply Item	General Information
Sample	Available upon request for formulation, testing, and supplier evaluation
Order Quantities	100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead Time	Typically 5–7 days after sample confirmation
Production Lead Time	Typically 15–30 days after order and specification confirmation
Packaging	Suitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
Storage	Store in tightly sealed, suitable protective packaging in a cool, dry environment. Protect from moisture, heat, and direct sunlight. Specific storage conditions follow the approved product specification.
Documentation	COA · Product Specification · TDS · SDS · Applicable declarations (as applicable)

Final order quantities, lead times, packaging, documentation, and shipping arrangements are confirmed according to the selected product and commercial requirements.