Cynanchum Atratum Extract Powder

Cynanchum atratum extract starts from the root and rhizome of a herbaceous perennial known in Chinese herbal lists as bai wei, with the stems and leaves excluded. Water extraction concentrates the soluble root fraction, and the liquor is dried into a light brown powder that disperses in water.

The extract is supplied at a 10:1 ratio with no marker percentage and is milled to 80 mesh. It is a plain root extract, and no powder or standardized grade of this plant is listed beside it.

Cynanchum atratum Identity & Plant Part

The botanical entity is Cynanchum atratum Bunge, a perennial of the Apocynaceae with opposite leaves and small dark purple flowers. The part used is the root together with the short rhizome it grows from, a clump of fine, brittle roots. Stems, leaves and seeds are not part of this ingredient.

The Chinese trade name bai wei is also applied to a second species, Cynanchum versicolor, and another root called bai qian from a different genus is sometimes confused with it. Reading the botanical name is therefore the reliable check. Cynanchum atratum root carries C21 steroidal glycosides and a small amount of volatile oil, named only as families.

What 10:1 Means for Cynanchum atratum

Fine-rooted perennials lose a lot of material to the fiber left after extraction, so a 10:1 ratio mostly describes how far the soluble root fraction has been concentrated. The figure does not define the C21 steroidal glycoside level, which differs with harvest and extraction conditions. A buyer who needs a stated glycoside figure has to use a marker-based product. One who names species, root with rhizome and ratio can use this Cynanchum atratum extract directly. This root is offered only as the ratio extract, with no powder or marker grade beside it.

Typical Specifications

Specification ItemProduct Information
Latin NameCynanchum atratum
Plant PartRoot & Rhizome
ProcessingWater Extraction
Common NameBai Wei 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

Root Extract Capsules

Encapsulation of Cynanchum atratum extract uses a dispersible light brown powder that flows well. Fine roots give a smooth, easy-flowing extract after water extraction. Fill weight is fixed after the first few samples, and a disintegration test on the finished capsule confirms dispersion.

Coated Tablet Blends

Microcrystalline cellulose and a disintegrant are the usual excipients for this root extract. A film coat hides the brown tint and the bitter root taste, which matters for chewable formats. Dry granulation keeps the Cynanchum atratum powder from absorbing humidity before compression.

Instant Tea-Style Powders

Tea-style mixes use the extract as a dark, bitter, earthy base. Roasted grain, caramel and licorice flavors cover the edge. The cup is hazy and brown, and a carrier in the dry blend keeps the dose uniform from sachet to sachet.

Stick-Pack Drink Mixes

Single-serve sticks combine the extract with a sweetened, strongly flavored base such as cocoa or cherry. The bitterness is the main taste limit, so test the dose range in the final flavored base before scale-up.

Gummy Premix Systems

Gummies hide the root note in dark fruit flavors. Add the extract to the cooked base late, and judge finished taste once the gel has set, because bitterness grows as the gummy cools to room temperature.

Formulation Notes

Cynanchum atratum extract is a light brown powder with a faint, earthy, slightly sweet aroma and a bitter taste. In water it disperses to a hazy brown liquid, and fine particles settle slowly on standing. Bitterness is the main sensory limit and sets how much a flavored formula can carry.

Glycoside-bearing root extracts absorb humidity and cake at the surface of an opened pack. Weigh the extract in a dry room, close the liner after every draw, and store it away from heat. If the powder looks darker or lumpy compared with the previous lot, check moisture before blending it into a premix.

Cynanchum atratum extract that has absorbed humidity forms lumps first and darkens later, so an opened pack is used within a short window and closed after every draw.

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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