Kudzu Extract Powder

The starchy tuberous root of Pueraria lobata, the fast-growing kudzu vine, is the source of this kudzu extract. Water extraction concentrates the soluble root fraction, and the liquor is dried to a light brown powder at a 10:1 ratio. Flowers, leaves and vines are left out of this kudzu root extract.

The 10:1 ratio carries no puerarin percentage. The powder is light brown, ground to 80 mesh and water dispersible. A puerarin-graded kudzu extract, the flower extract and the plain root powder are separate products, and Pueraria mirifica is a different species.

Pueraria lobata Root Identity & Plant Part

The botanical entity is Pueraria lobata (Willd.) Ohwi, a climbing vine of the legume family, Fabaceae, whose large tuberous roots store starch. The part used is the root, which is dug, sliced and dried before extraction. Flowers, leaves and the vine are not added to this kudzu extract.

Two relatives are easy to confuse with it. Pueraria mirifica is a Southeast Asian species with a different chemistry, and Pueraria thomsonii is sold alongside P. lobata in some pharmacopoeias. The root contains isoflavones, notably the C-glycoside puerarin together with daidzin and daidzein, and a substantial starch fraction that thickens the water extract as it concentrates.

Kudzu Extract vs Powder & Standardized Grades

FormWhat It IsChoose It When
10:1 Kudzu Root ExtractWater-extracted, concentrated and dried P. lobata rootA dispersible root extract without a marker is wanted
Kudzu Root Extract 10–40% PuerarinExtract with a defined puerarin rangeThe specification names a puerarin figure
Kudzu Flower Extract Powder10:1 water extract of the flowerFlower, not root, is the required source
Kudzu Root PowderDried, milled rootStarch-rich root bulk is wanted

Kudzu root enters the extraction at ten parts for every part of powder, and 10:1 describes only that input. It gives no puerarin figure, and much of the powder can be starch and soluble sugars, not isoflavone.

A label that has to declare puerarin needs the graded extract. The ratio extract suits blends that want kudzu root identity in a dispersible form with a mild flavor, the flower extract serves a different part, and the milled root is a bulky, starch-rich powder that behaves like a flour in drinks.

Typical Specifications

Specification ItemProduct Information
Latin NamePueraria lobata
Plant PartRoot & Rhizome
ProcessingWater Extraction
Common NameKudzu, Kudzu Root
Ingredient TypeRatio Extract
Extract Ratio10:1
AppearanceLight Brown powder
Solubility / DispersibilityWater Dispersible
Quality Parameters
Moisture (LOD)≤5.0%
Total Ash≤5.0%
Particle Size80 mesh
Heavy MetalsLead ≤2 ppm · Arsenic ≤1 ppm · Cadmium ≤1 ppm · Mercury ≤0.1 ppm
MicrobiologyTPC ≤1,000 cfu/g · Yeast & Mold ≤100 cfu/g · E. coli Negative · Salmonella Negative/25 g
Shelf Life24 months in unopened original packaging, cool and dry storage

Application Areas

Thickened Drink Powders

Drink powders use kudzu extract for a smooth, lightly thickened body. The soluble starch fraction gives a creamy feel in warm water, so the dose is balanced against viscosity. Sweetener and a mild grain or nut flavor suit its quiet, slightly starchy taste.

Capsule Fills with Root Extracts

Capsule fills combine kudzu extract with other root extracts. The starch content makes the powder cohesive and slightly dusty, so a flow aid is considered and humidity is kept low. A trial run checks fill weight before capsule size is chosen.

Tablet Blends

Tablet blends use the extract as a dry beige component. Starch helps binding, so less binder is needed than with leaf extracts, but the tablet can swell in humid storage. Hardness and disintegration are checked after aging.

Warm-Serve Instant Sticks

Instant sticks combine kudzu extract with sweetener and a light carrier. Hot water gives a cloudy, soft-flavored cup, and the starch settles slowly, so the stick instructions call for stirring. Pale colors keep milk-style flavors looking natural.

Formulation Notes

The powder is light brown with a faint, starchy, slightly earthy aroma and a mild, faintly sweet taste. In water it disperses to a cloudy, pale brown liquid whose body increases as the water warms and the starch swells. Cold water gives a thinner cup with more settling.

Premix the powder into part of the dry base before the main blend to prevent wet lumps, because starch-bearing powders clump when poured into liquid. Isoflavone glycosides are stable to ordinary heat, so the extract can go in during warm mixing. Moisture still causes it to cake.

After opening, squeeze out the air and close the liner firmly. Kudzu extract holds water through its starch and sugar content, so a half-used drum left on a humid shelf can set into a single block within days. In capsule work, kudzu extract is checked for compaction after a vibration test of loaded containers, because starch-bearing powders settle and can fill capsules unevenly late in a run unless the drum is turned before use.

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 ItemGeneral Information
SampleAvailable upon request for formulation, testing, and supplier evaluation
Order Quantities100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead TimeTypically 5–7 days after sample confirmation
Production Lead TimeTypically 15–30 days after order and specification confirmation
PackagingSuitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
StorageStore 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.
DocumentationCOA · 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.

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