Kudzu Root Extract 10–40% Puerarin

Kudzu Root Extract is a standardized botanical ingredient produced from kudzu root, commercially identified as Pueraria lobata and botanically accepted as Pueraria montana var. lobata. The root contains a characteristic group of isoflavonoids, with puerarin serving as the principal marker used to define concentrated commercial grades.

Essencefield supplies Kudzu Root Extract standardized to 10–40% puerarin, covering moderate- to higher-concentration grades for supplement and formulation projects. The 40% grade represents the primary concentrated specification within this range. These standardized extracts are distinct from products defined by total isoflavones or simple botanical extract ratios.

SKU: BOT-STX-0070 Categories: Standardized Extracts, Specialty Standardized Extracts Tags: Flavonoids, Isoflavone Glycosides, Isoflavones, Kudzu Root, Pueraria lobata, Puerarin

Ingredient Profile & Common Uses

Kudzu Root Extract is derived from the root of Pueraria montana var. lobata, a member of the Fabaceae family widely traded under the botanical synonym Pueraria lobata. Unlike ordinary root powder, the ingredient is processed and standardized around a defined phytochemical marker. Kudzu root naturally contains several related isoflavonoids, including puerarin, daidzin, and daidzein.

Grade selection primarily changes marker concentration and the amount of extract required in the finished formulation. Lower-assay grades retain a larger proportion of the surrounding botanical matrix at a given ingredient weight, while more concentrated grades can deliver the same theoretical marker quantity at a lower inclusion level. Assay percentage should therefore be treated separately from extract ratio and total-isoflavone specifications.

The ingredient is used in standardized botanical supplements, multi-ingredient blends, functional nutrition products, and powdered formulation systems. As a multi-component root extract, practical performance depends on both marker concentration and the surrounding botanical matrix. Powder flow, blend uniformity, wetting, dispersibility, taste contribution, and sedimentation are therefore more relevant during formulation development than the properties of the isolated reference compound alone.

Application Areas

Capsules & Tablets

Used in botanical supplements where a defined marker concentration is required. Higher-assay material can reduce the amount of extract needed per serving and support more compact formula designs.

Multi-Botanical Formulas

Suitable for combination with other standardized plant ingredients. Premixing and blend-uniformity control become increasingly important when concentrated grades are incorporated at relatively low inclusion levels.

Sachets & Powder Blends

Can be incorporated into dry nutritional powders and botanical drink mixes. Flow, wetting, sensory impact, and visible sedimentation should be evaluated during formulation development.

Functional Nutrition Products

Applicable to selected functional nutrition systems designed around kudzu-derived isoflavones. Developers should evaluate the complete botanical ingredient rather than assuming that isolated-compound properties predict finished-extract behavior.

Typical Specifications

Parameter	Specification
Product Name	Kudzu Root Extract
Commercial Botanical Name	Pueraria lobata
Accepted Botanical Name	Pueraria montana var. lobata
Botanical Family	Fabaceae
Common Name	Kudzu
Plant Part	Root
Ingredient Type	Standardized Botanical Extract
Product Form	Extract Powder
Standardization Marker	Puerarin
Available Standardization	10–40% Puerarin
Primary Concentrated Grade	40% Puerarin
Marker Chemical Class	C-Glycosyl Isoflavone
Puerarin Chemical Identity	Daidzein-8-C-glucoside
Puerarin CAS Number	3681-99-0
Puerarin Molecular Formula	C₂₁H₂₀O₉
Puerarin Molecular Weight	416.4 g/mol

Marker Compounds & Standardization

Puerarin is chemically identified as daidzein-8-C-glucoside, a C-glycosyl isoflavone in which the sugar moiety is carbon-linked to the isoflavone structure. Kudzu root also contains related compounds including daidzin and daidzein, creating a multi-component phytochemical profile rather than a single-compound ingredient.

For procurement and analytical comparison, puerarin content and total isoflavone content are different specifications. An assay such as 40% puerarin defines the concentration of one individual marker, while a total-isoflavone value measures a broader fraction containing several related compounds. The two figures should not be substituted for one another in purchasing specifications or formulation calculations.

HPLC is widely used commercially for compound-specific measurement because chromatographic separation allows the individual marker to be quantified independently from related isoflavonoids. This analytical distinction is especially useful when comparing standardized extract grades with broader total-isoflavone products.

Technical & Quality Considerations

Incoming-material evaluation should first establish whether the purchased ingredient is a marker-standardized root extract, a ratio extract, a total-isoflavone product, or highly purified puerarin. These materials can share similar commercial naming while representing different assay definitions, concentration levels, and formulation behavior. Botanical identity, root source, marker definition, assay basis, and chromatographic profile are therefore important purchasing and QA distinctions.

The physicochemical properties of isolated puerarin should not be assigned directly to the complete botanical extract. The commercial powder contains multiple root-derived constituents that influence wetting, dispersibility, color, taste, flow, and sedimentation. Conventional standardized powder and specialized water-dispersible or water-soluble formats should likewise be treated as different ingredient formats rather than assumed to have equivalent behavior.

During scale-up, increasing assay concentration reduces the extract quantity required to deliver the same theoretical marker input. This can increase the importance of premixing and distribution uniformity in low-inclusion dry blends. Reconstituted powders and liquid systems should be evaluated for mixing sequence, agitation, dispersion, visible sedimentation, sensory contribution, and compatibility with the other components in the finished formulation.

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.