Prepared Rehmannia Root Extract Powder

Processed roots of Rehmannia glutinosa, the Chinese foxglove, are the single plant material behind this prepared rehmannia root extract. Water extraction concentrates the soluble fraction, and the liquor is dried to a dark brown powder at a 10:1 ratio. Leaves, flowers and fresh unprocessed root are not used.

The 10:1 ratio carries no iridoid glycoside percentage. The powder is dark brown, ground to 80 mesh and water dispersible. An iridoid-graded rehmannia extract and the plain root powder are separate products, and the extract listed under the pharmacy name is a separate listing.

SKU: BOT-BEX-0099 Category: Botanical Extracts Tags: Gummies & Chews, Plant Extracts, Rehmannia, Root & Rhizome, Water Dispersible, Water Extracted

Rehmannia glutinosa Root Identity & Part

The botanical entity is Rehmannia glutinosa (Gaertn.) Libosch. ex Fisch. & C.A.Mey., a perennial of the family Rehmanniaceae with soft, hairy, rosetted leaves. The part used is the tuberous root, which in this product has been processed, or prepared, before extraction, so that the raw yellow root has turned dark and sweet. Leaves and flowers are not added to this prepared rehmannia root extract.

Rehmannia roots appear in trade in three states: fresh, dried and prepared, and they differ in color, sugar content and iridoid pattern. Raw root contains iridoid glycosides such as catalpol, and processing alters that profile and darkens the root through sugar browning. A specification should therefore state the prepared form, which is why the word appears in the product name.

Rehmannia Extract vs Powder & Standardized Grades

Form	What It Is	Choose It When
10:1 Prepared Rehmannia Root Extract	Water-extracted, concentrated and dried prepared R. glutinosa root	A dispersible prepared-root extract without a marker is wanted
Radix Rehmanniae Extract Powder	10:1 water extract of rehmannia root listed under its pharmacy name	The specification uses the pharmacy name
Rehmannia Glutinosa Extract 5–30% Iridoid Glycosides	Extract with a defined iridoid glycoside range	The specification names an iridoid figure
Rehmannia Root Powder	Dried, milled root	Root fiber and bulk are wanted

The prepared root enters at ten parts for each part of powder, which is the sense of 10:1 here. It gives no iridoid glycoside figure, and the graded extract serves labels that need one.

The ratio extract suits dark-colored blends that want prepared rehmannia identity in a sweet, dispersible form. The listing under the pharmacy name is a separate entry whose state of preparation is not stated in the product name. The milled root brings fiber and a sticky, coarse texture.

Typical Specifications

Specification Item	Product Information
Latin Name	Rehmannia glutinosa
Plant Part	Root & Rhizome
Processing	Water Extraction
Common Name	Prepared Rehmannia, Chinese Foxglove Root
Ingredient Type	Ratio Extract
Extract Ratio	10:1
Appearance	Dark Brown powder
Solubility / Dispersibility	Water Dispersible
Quality Parameters
Moisture (LOD)	≤5.0%
Total Ash	≤5.0%
Particle Size	80 mesh
Heavy Metals	Lead ≤2 ppm · Arsenic ≤1 ppm · Cadmium ≤1 ppm · Mercury ≤0.1 ppm
Microbiology	TPC ≤1,000 cfu/g · Yeast & Mold ≤100 cfu/g · E. coli Negative · Salmonella Negative/25 g
Shelf Life	24 months in unopened original packaging, cool and dry storage

Application Areas

Dark Sweet Drink Powders

Drink powders use prepared rehmannia extract for a dark brown color and a sweet, molasses-like taste. The color is strong, so it is used in coffee-style, cocoa or black-tea bases. Sugar can be reduced slightly, since the prepared rehmannia extract itself carries a rich, caramelized sweetness.

Capsule Fills

Capsule fills take the extract as a dark, sticky blend component. It stains pale ingredients and equipment, so opaque capsules are used and the line is cleaned between products. A flow aid is considered because the sweet solids tend to clump in a humid hopper.

Coated Tablet Cores

Coated tablets hold the extract in a dark core. Sugar-rich solids soften in humid air, so the coating is also a moisture barrier, and hardness is checked after storage. The strong brown is hidden by a pigmented coat.

Dark Chew Premixes

Chew premixes add the prepared rehmannia extract after the base has cooled. Its brown tone suits caramel, licorice or coffee flavors, and the high sugar content lowers the need for added sweetener. Trials show how the extract affects chew softness after a few weeks.

Formulation Notes

The powder is dark brown with a sweet, caramelized, slightly smoky aroma and a sweet, mildly bitter taste. In water it dissolves or disperses to a deep brown liquid. Color is stable to ordinary processing heat because the browning has already taken place, but it is not removable once added.

Premix the prepared rehmannia powder into a part of the dry base before the main mix and use a non-sticky carrier to separate the particles. The sugars and browning products attract water, so the powder cakes quickly, sometimes within a day of exposure to humid air. Equipment surfaces stain, and scoops are cleaned right after use.

Opened drums are resealed with the liner flat against the powder and, for long storage, a desiccant sachet is placed inside the outer pack. Dark powders are lightest to sort visually, so a sieve check for lumps is routine.

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.