Drynaria Rhizome Extract Powder

Drynaria Rhizome Extract Powder is a concentrated rhizome extract produced from the plant commercially identified as Drynaria fortunei (Kunze ex Mett.) J.Sm., traditionally known as Gu Sui Bu or Drynariae Rhizoma. The accepted botanical name Drynaria roosii Nakaike is also used in current taxonomic references. The finished material is supplied as a dry extract powder for concentrated formulation systems.

The primary commercial specification is a 10:1 ratio extract, with 4:1, 5:1, and 20:1 ratio grades also available. Naringin is an important pharmacopoeial reference marker associated with Drynaria rhizome, while HPLC marker analysis and chromatographic fingerprinting provide practical tools for identity and extract-profile evaluation.

SKU: BOT-BEX-0327 Categories: Botanical Extracts, Root & Rhizome Extracts Tags: Dietary Supplements, Drynaria Rhizome, Polyphenols, Rhizome, Rhizome Extracts

Ingredient Profile & Common Uses

Drynaria rhizome extract is produced from the underground rhizome rather than the aerial parts of the fern. Commercial and pharmacopoeial literature widely uses Drynaria fortunei, while Drynaria roosii is the currently accepted taxonomic name. The ingredient differs from simple Drynaria rhizome powder because extraction and concentration increase the botanical raw-material equivalent delivered in a smaller amount of finished powder.

Commercial grades are primarily differentiated by extract ratio. The 10:1 grade represents the central sourcing specification, while 4:1 and 5:1 provide lower-concentration options and 20:1 provides a higher-ratio alternative. Extract ratio describes the relationship between the starting rhizome and finished extract; it does not indicate the percentage of naringin, total flavonoids, or another individual constituent.

The powder is primarily used in concentrated herbal supplements and multi-ingredient formulations. Drynaria rhizome naturally contains flavonoids and characteristic glycosides, while the finished powder contributes a noticeable brown color and mild earthy-bitter sensory profile. During formulation, powder flow, blend uniformity, dispersion, sedimentation, and sensory impact are more useful development parameters than assuming different ratio grades behave identically.

Application Areas

Capsules

Drynaria extract suits concentrated capsule formulas where extract ratio reduces botanical load. Powder flow, blend uniformity, and fill-weight consistency should be evaluated during scale-up.

Tablets

The dry extract can be incorporated into tablets with suitable excipients. Development work should evaluate compressibility, disintegration, color uniformity, and compatibility with other ingredients.

Multi-Herb Formulas

Gu Sui Bu extract can be combined with complementary plant extracts and nutritional ingredients. Consistent source identity and extract-ratio control are especially important in concentrated multi-ingredient systems.

Powder Blends and Sachets

The ingredient can be used in powdered supplement blends and sachets. Premixing and particle-distribution control support uniformity when concentrated grades are incorporated at relatively low inclusion levels.

Functional Powder Systems

Powdered functional-food or drink-mix concepts require additional evaluation of wetting, sedimentation, brown color, bitterness, and flavor interaction before an appropriate grade is selected.

Typical Specifications

Specification Item	Product Information
Product Name	Drynaria Rhizome Extract Powder
Commercial Botanical Name	Drynaria fortunei (Kunze ex Mett.) J.Sm.
Accepted Botanical Name	Drynaria roosii Nakaike
Botanical Family	Polypodiaceae
Common Names	Gu Sui Bu · Drynariae Rhizoma · Rhizoma Drynariae
Plant Part	Rhizome
Ingredient Type	Botanical ratio extract
Product Form	Powder
Primary Commercial Grade	10:1 Extract
Available Ratio Grades	4:1 · 5:1 · 10:1 · 20:1
Pharmacopoeial Reference Marker	Naringin
Characteristic Profile	Flavonoids · glycosides · phenolic constituents
Analytical Approach	HPLC marker analysis · chromatographic fingerprint
Botanical Identification	Source identity combined with chromatographic profile
Extract CAS Number	No single-compound CAS assigned to the mixed extract

Key Constituents & Extract Profile

Drynaria rhizome contains a multi-component phytochemical profile rather than one isolated active substance. Reported constituents include naringin, neoeriocitrin, flavonoid glycosides, flavan-3-ol-related compounds, proanthocyanidin-type constituents, and phenolic compounds. This chemical diversity is important when evaluating a commercial extract because an extract-ratio specification alone does not define its full constituent profile.

Naringin is particularly relevant as an analytical reference because it is used as a characteristic marker in pharmacopoeial evaluation of Drynaria rhizome. For a commercial extract, however, a reference marker is different from a declared standardized assay. A 10:1 grade therefore should not be interpreted as containing 10% naringin or any other fixed constituent concentration.

HPLC can be used to quantify selected markers and compare chromatographic profiles between qualified materials. Supplier evaluation is stronger when source identity, rhizome authentication, extract ratio, and chemical fingerprint are considered together rather than assigning a single-compound identity to a multi-component extract.

Technical & Quality Considerations

Authentication is particularly important because this ingredient appears under traditional, pharmacopoeial, and modern taxonomic names. A technically complete identity links Drynaria fortunei, the accepted name Drynaria roosii, the Polypodiaceae family, and the rhizome plant part. Production-lot fingerprint comparison can then support consistency and help distinguish concentrated extract from simple milled rhizome powder.

Physical performance depends on extraction concentration, drying conditions, carrier system, solids composition, and particle characteristics. Commercial grades can therefore differ in bulk density, flow, wetting, clarity, dispersion, and sedimentation. Aqueous behavior should be evaluated in the intended formulation rather than assuming all ratio extracts have the same solubility or suspension characteristics.

For capsule and tablet scale-up, R&D should evaluate premixing, blend uniformity, flow, filling, compression, and disintegration. Powder and beverage-related systems require additional attention to wetting, sediment formation, color, bitterness, flavor interaction, and processing conditions. These checks become more important when moving between lower- and higher-ratio grades because concentration alone does not guarantee identical processing behavior.

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.