Product Introduction
Sophora Japonica Extract is a natural botanical extract obtained from the flower buds of Sophora japonica L. It contains valuable flavonoids including rutin, quercetin, isoquercetin, troxerutin and luteolin, and is widely used in dietary supplements, functional foods and cosmetic formulations.
Extraction Method
- Water Extraction
- Ethanol Extraction
- Hydroalcoholic Extraction
Main Active Ingredients
Sophora Japonica Extract is naturally rich in flavonoids, including:
- Rutin
- Quercetin
- Isoquercetin
- Luteolin
- Troxerutin
- Rhamnose
It is one of the most important natural botanical sources for flavonoid ingredients used in nutraceutical, pharmaceutical, and cosmetic industries.

Certificate of Analysis
CERTIFICATE OF ANALYSIS
| Product Name: Sophora japonica Extract | Plant Part Used:flower |
| Botanical Name: Sophora japonica L |
Quantity: 3500kgs |
| ITEM |
SPECIFICATION | RESULTS |
| Physical&Chemical Control | ||
| Appearance | Fine powder | Complies |
| Color | Light Yellow | Complies |
| Odor&Taste | Characteristic | Complies |
| Loss On Drying | ≤5.0% | 3.94% |
| Ash | ≤5.0% | 4.01% |
| Assay (Rutin;) | 95% | 95.11% |
| Sieve Analysis | 98% pass 80 mesh | Complies |
| Heavy Metals | ≤10ppm | Complies |
| Cadmium(Cd) | ≤2ppm | Complies |
| Mercury(Hg) | ≤0.1ppm | Complies |
| Arsenic(As) | ≤2ppm | Complies |
| Lead(Pb) | ≤3ppm | Complies |
| Bulk density | 45-65g/100ml | Complies |
| Microbiological Control | ||
| Total plate count | ≤10000CFU/g | Complies |
| Yeast & mold | ≤100CFU /g | Complies |
| E.coli | Negative | Negative |
| Salmonella | Negative | Negative |
Conclusion: Conform with specification
Storage: Stored in dry and cool place, keep away from strong light and heat.
Shelf Life: Two years when stored properly
Functions and Usages
1. Antioxidant Support
Rutin is a natural flavonoid with strong antioxidant properties.
Applications:
- Antioxidant supplements
- Healthy aging formulas
- Polyphenol blends
2. Vascular & Capillary Health
Commonly used in products targeting:
- Blood vessel wellness
- Capillary strength support
- Circulation health
3. Vitamin C Synergy
Rutin is frequently combined with:
- Vitamin C
- Citrus bioflavonoids
- Quercetin
Applications
- Capsules
- Tablets
- Gummies
- Functional beverages
- Nutritional powders
OEM & ODM Service
WEHENGFOOD offers a one-stop OEM & ODM service for sophora japonica extract production, processing, and packaging customization, including tablets, powders, granules, hard capsules, soft capsules, gummies, etc., tailored to specific customer needs.

Factory
1. Raw Material Selection & Inspection
Selection of high-quality botanical raw materials
- Identification of plant species
- Supplier qualification assessment
- Quality inspection of raw materials
- Testing for pesticides, heavy metals, microorganisms, and contaminants
2. Cleaning & Pre-processing
Preparation of raw materials before extraction
- Washing and impurity removal
- Drying and moisture control
- Cutting, crushing, and milling
- Preparation of uniform botanical powder
3. Extraction
Extraction of active ingredients from plants
- Solvent extraction (water, ethanol, etc.)
- Ultrasonic extraction / reflux extraction
- Optimization of temperature, time, and solvent ratio
- Transfer of bioactive compounds into extract solution
4. Filtration & Separation
Removal of insoluble materials and impurities
- Coarse filtration
- Fine filtration
- Centrifugation and purification
- Obtaining clear extract liquid
5. Concentration
Increasing the concentration of active compounds
- Vacuum evaporation
- Low-temperature concentration technology
- Removal of excess solvent
- Improvement of extract potency
6. Purification & Refinement
Enhancing purity and quality of the extract
- Resin purification
- Membrane filtration
- Removal of unwanted components
- Standardization of active ingredients
7. Drying
Conversion of liquid extract into powder form
- Spray drying
- Freeze drying (for heat-sensitive ingredients)
- Moisture control
- Production of stable botanical extract powder
8. Milling & Sieving
Improving powder quality and consistency
- Fine grinding
- Particle size control
- Uniform powder appearance
9. Blending & Standardization
Ensuring consistent product specifications
- Adjustment of active ingredient content
- Mixing with carriers if required
- Batch consistency control
10. Quality Control Testing
Comprehensive quality assurance
- HPLC / GC analysis
- Active compound identification
- Microbial testing
- Heavy metal testing
- Residual solvent testing
- Stability testing
11. Packaging
Professional packaging solutions
- Aluminum foil bags
- Drums
- Customized OEM packaging
- Labeling and batch coding
12. Storage & Shipment
Safe delivery to global customers
- Temperature and humidity-controlled storage
- Documentation preparation
- International logistics support
- Global export service

Package

Exhibitions

FAQ
1. What is Sophora Japonica Extract?
Sophora Japonica Extract is a natural botanical extract made from the flower buds of Sophora japonica L.. It is rich in flavonoids such as Rutin, Quercetin, Isoquercetin, and Luteolin.
2. What are the main active ingredients in Sophora Japonica Extract?
The main active compounds include Rutin, Quercetin, Troxerutin, Isoquercetin, Luteolin, and Rhamnose. These natural flavonoids are widely used in nutraceutical and cosmetic applications.
3. What is Sophora Japonica Extract used for?
Sophora Japonica Extract is commonly used in dietary supplements, functional foods, beverages, and cosmetics for antioxidant, wellness, and beauty formulations.
4. What specifications of Sophora Japonica Extract are available?
We supply various specifications including Sophora Japonica Extract 10:1, Rutin 95%, Quercetin 95%-98%, Troxerutin, Isoquercetin, and Luteolin extracts.
5. Can you provide OEM and private label services?
Yes. We offer OEM and ODM services for capsules, tablets, gummies, powders, softgels, and customized botanical supplement products.
6. How do you ensure Sophora Japonica Extract quality?
Our Sophora Japonica Extract is manufactured under strict quality control with HPLC testing, COA documentation, heavy metal analysis, and microbial testing to ensure consistent quality.











