| Customization: | Available |
|---|---|
| Certification: | ISO, FDA |
| Assay Method: | HPLC, UV |
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Our Anhydrous Quercetin 95% Powder, derived from Sophora japonica (Japanese pagoda tree) flower buds, is a premium-grade natural flavonoid extract. Utilizing advanced purification technology, we achieve a minimum 95% quercetin content with no residual solvents, offering unparalleled antioxidant, anti-inflammatory, and immune-modulating properties. Ideal for nutraceuticals, functional foods, and cosmeceuticals, this ingredient is scientifically validated for bioavailability and efficacy.
Keywords: Quercetin 95% powder, Sophora japonica extract, natural flavonoid, immune support, bulk antioxidant supplier.
95% Purity: Lab-verified quercetin content with HPLC testing.
Natural Source: Ethically harvested Sophora japonica flower buds, non-GMO and sustainably cultivated.
Anhydrous Formula: Zero moisture for enhanced stability and shelf life.
Multi-Functional Benefits: Supports immune defense, cardiovascular health, and allergy relief.
Global Compliance: Meets USP, EP, and FDA standards for dietary ingredients.
| Category | Parameter | Specification | Test Method/Standard |
|---|---|---|---|
| General | Product Name | Anhydrous Quercetin 95% Powder | - |
| Botanical Source | Sophora japonica Flower Buds | - | |
| Physical | Appearance | Fine Yellowish-Brown Powder | Visual Inspection |
| Particle Size (D90) | ≤ 80 µm | Laser Diffraction (ISO 13320) | |
| Moisture Content | ≤ 1% | Karl Fischer (USP <921>) | |
| Chemical | Quercetin Content | ≥ 95% | HPLC (USP <621>) |
| Total Ash | ≤ 0.2% | Gravimetric Method (EP 2.4.16) | |
| Solubility | Soluble in Ethanol, DMSO; Water-Dispersible (with carriers) | In-house Test | |
| Microbial | Total Plate Count | ≤ 1,000 CFU/g | ISO 4833-1:2013 |
| Yeast & Mold | ≤ 100 CFU/g | ISO 21527-1:2008 | |
| Heavy Metals | Lead (Pb) | ≤ 0.5 ppm | ICP-MS (AOAC 2013.06) |
| Arsenic (As) | ≤ 0.2 ppm | ICP-MS (AOAC 2013.06) | |
| Residual Solvents | Ethanol | ≤ 10 ppm | GC-FID (EP 2.4.24) |
| Allergens | Gluten, Soy, Dairy | Not Detected | ELISA |
Dietary Supplements: Capsules, tablets, or powders for immune and allergy support.
Functional Foods: Fortified juices, sports nutrition products, or gummies.
Cosmetic Formulations: Anti-aging creams and serums targeting oxidative stress.
Pharmaceuticals: Adjuvant therapy for inflammatory and metabolic disorders.
Hubei Sanxin Pharmaceutical Technology Co., Ltd is a wholly-owned subsidiary of Hubei Sanxin Biotechnology Co., Ltd. Which was established in March 2011, located in Dongcheng Industrial Park, Fangxian, Shiyan City. Our company owns first -class production equipment with the latest technology and testing methods. We specialize in scientific research, development, production, and sales all as one national high-tech enterprise, We also be known for agricultural leading enterprises in Shiyan City. We have GMP planting base with more than 4942 acres, 2 automatic production lines, which can produce more than 800 tons of plant extracts annually. The company has passed FDA certification and Kosher and Halal certification.
Sanxin′s main products are: Polygonum Cuspidatum Extracts (resveratrol, Polydatin, emodin, Physcion and proportional extracts of Polygonum cuspidatum); Pueraria Extracts (pueraria isoflavones, puerarin); Olive Leaf Extract(Oleuropein, Hydroxytyrosol); Tea extract; Baicalin and other standard extracts and proportional extract products. Our products have been widely used in food, health care products, medicines, cosmetics, veterinary medicine, feed additives and many other fields. Now company′s products have been sold to Hunan, Tianjin, Beijing, Shanghai and other places, some of the products have been exported to the United States, Canada, UK, Japan, and other more than 30 countries. Sanxin company′s main spirit is: Be honest be Trustworthy, win-win cooperation! Welcome to our company!
For more information, samples, or to place an order, please contact us. We look forward to partnering with you to deliver high-quality resveratrol powder that meets your needs!
GMP & ISO 22000 Certified: Produced in facilities compliant with FDA and EU regulations.
Full Traceability: Documentation from raw material harvest to final product.
Technical Support: Free R&D assistance for solubility enhancement and stability testing.
Contact us for COA samples, custom projects, or partnership opportunities!
1. Q: How is the 95% quercetin purity ensured?
A: Each batch is rigorously tested via HPLC, with Certificates of Analysis (COA) provided for transparency.
2. Q: Is this quercetin derived from natural or synthetic sources?
A: 100% natural! Sourced from Sophora japonica flower buds, with no synthetic additives.
3. Q: Can this powder be used in beverage formulations?
A: Yes, but it requires carriers (e.g., cyclodextrins) for water solubility. We offer pre-dispersible versions upon request.
4. Q: Does quercetin interact with medications like antibiotics?
A: Consult a healthcare professional, though quercetin is generally recognized as safe (GRAS status).
5. Q: Is this suitable for vegan or kosher products?
A: Absolutely. Free from animal-derived ingredients, with optional kosher/halal certification for bulk orders.
6. Q: What is the shelf life and storage recommendation?
A: 36 months in airtight containers at <25°C, away from light and humidity.
7. Q: Do you offer private labeling or custom formulations?
A: Yes. OEM/ODM services include custom blends (e.g., quercetin + vitamin C), dosage forms, and packaging.
8. Q: What's the MOQ and bulk pricing?
A: MOQ starts at 500g. Volume discounts apply for orders over 5kg. Contact us for tailored quotes.
9. Q: Are there clinical studies supporting quercetin's benefits?
A: Yes. We provide scientific literature on its immune-boosting, antiviral, and anti-inflammatory effects upon request.
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