Sophora Japonica Flower Extract Powder

Flower buds and flowers of Styphnolobium japonicum, the Japanese pagoda tree long sold as Sophora japonica, are the raw material for this extract. Water extraction concentrates the soluble flower fraction, and the liquor is dried to a light brown powder at a 10:1 ratio. Fruit pods, leaves and bark are left out.

The 10:1 ratio of this sophora japonica extract carries no rutin percentage. The powder is light brown, ground to 80 mesh and water dispersible. A rutin-graded sophora japonica extract and the pure rutin are separate products, and the fruit extract is a different raw material.

SKU: BOT-BEX-0106 Category: Botanical Extracts Tags: Capsules & Tablets, Drink Powders & Sticks, Flower, Plant Extracts, Water Dispersible, Water Extracted

Styphnolobium japonicum Flower Identity & Part

The botanical entity is Styphnolobium japonicum (L.) Schott, a deciduous tree of the legume family, Fabaceae, which older sources and the product name call sophora japonica. The part used is the flower, usually collected as buds before they open and dried. Fruit pods, leaves and bark are not added to this sophora japonica flower extract.

Two confusions come up often. Sophora flavescens, the shrub grown for its bitter root, is a different species, and the fruit of the same pagoda tree, a separate pod-shaped raw material, has its own chemistry. The flower buds are well known as a rich plant source of the flavonol glycoside rutin, along with quercetin and related glycosides, and they are the starting material for rutin production.

Sophora Flower vs Fruit & Standardized

Form	What It Is	Choose It When
10:1 Sophora Japonica Flower Extract	Water-extracted, concentrated and dried flower	A dispersible flower extract without a marker is wanted
Sophora Japonica Fruit Extract Powder	10:1 water extract of the fruit	Fruit, not flower, is the required source
Sophora japonica Extract 95% Rutin	Extract with a defined rutin figure	The specification names a rutin figure
Rutin 98%	Single purified flavonol glycoside	A pure compound is required, not a plant extract

Ten parts of sophora flower give one part of this sophora japonica powder, so 10:1 describes input and not content. It gives no rutin figure, and the high-purity rutin products listed here are a different class of ingredient from a ratio extract.

The sophora japonica extract suits blends that want sophora flower identity in a dispersible, yellow-brown form. A label that has to declare rutin needs the graded extract or the purified compound. The fruit extract is another raw material with its own flavonoid and isoflavone profile.

Typical Specifications

Specification Item	Product Information
Latin Name	Styphnolobium japonicum
Plant Part	Flower
Processing	Water Extraction
Common Name	Japanese Pagoda Tree Flower, Sophora Flower
Ingredient Type	Ratio Extract
Extract Ratio	10:1
Appearance	Light 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

Yellow-Tinted Drink Powders

Drink powders use the flower extract for a golden-yellow tint and a mild floral note. The flavonol glycosides give color that deepens toward orange at higher pH, so mildly acid bases keep the tone clean. Honey, pear or citrus flavors suit it.

Pale Capsule Fills

Capsule fills combine the extract with other flavonoid-bearing extracts. The powder is fine and light, so it can dust and bridge, and a flow aid is considered. Rutin-type glycosides are only slightly soluble, so wetting is checked in a quick dissolution trial.

Coated Tablet Cores

Coated tablets hold the sophora japonica extract in a dry core. Flavonols can darken with moisture or iron, so the core is dried and the coating acts as a barrier. Hardness is checked after storage, and a light pigment in the coat hides the yellow-brown core.

Sports-Style Powder Sticks

Sports-style sticks pair the extract with electrolytes and sweetener in single-serve sachets. The yellow tint suits lemon and tropical flavors, and the extract is mixed into a premix first so that fine particles do not settle at the bottom of the stick.

Formulation Notes

The sophora japonica powder is light brown with a faint, hay-like floral aroma and a mild, slightly bitter taste. In water it disperses to a pale yellow-amber, slightly hazy liquid. Flavonol glycosides have limited solubility, so a fine haze and a slight sediment appear in still, cold drinks.

Premix the powder into part of the dry base before the main blend to spread the color evenly. Rutin-type compounds react with iron and aluminum to form darker complexes, so stainless equipment is used. Alkaline ingredients intensify the yellow, which can be an advantage in a golden formula but a drawback in a pale one.

A used drum is closed with its liner pressed against the powder. Because flower solids pick up moisture slowly but steadily, a half-used drum is placed in a dry store and checked for lumps before the next 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 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.