Quercetin Powder
Botanical Source: Sophorae Japonica L.
Appearance: Fine light yellow to yellowish green powder
Plant Part Used: Pagodatree flower bud
Specification:
95% anhydrous powder or granular;
95% dihydrate powder or granular;
98% anhydrous powder or granular;
98% dihydrate powder or granular
Test Method: HPLC/UV
Certifications: ISO9001, FSSC22000, KOSHER, HALAL, HACCP, FDA
Packing Size: 25kg/drum
Transportation: Courier, Air, Ocean
MOQ: sample and small kgs trial order available, commercial order MOQ 25kg
Delivery: Ready stock, Prompt shipment
- Free Samples
- Quality Assurance
- 24/7 Customer Service
Product Introduction
What is Quercetin Powder?
Quercetin Powder is a premium natural flavonoid extract derived from Sophorae Japonica L. flower buds, standardized to deliver exceptional purity and potency. This fine light yellow to yellowish green powder contains 95-98% pure quercetin, making it one of the most concentrated forms available in the market. As a powerful antioxidant compound, quercetin belongs to the flavonol subclass of polyphenols and is naturally found in various plants. Our product undergoes rigorous testing using HPLC/UV methods to ensure consistent quality and meets international standards for pharmaceutical and nutraceutical applications.

Quercetin Powder COA
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Product Name
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Quercetin Powder
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Batch Number
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Botanical Source
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Sophora japonica L.
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Batch Quantity
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3700kgs
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Plant Part Used
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Pagodatree flower bud, 100% Natural
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Country of Origin
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China
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Extraction Ratio
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Standard Extract
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Active Ingredient Markers
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Quercetin
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Analysis Items
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Specifications
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Results
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Methods used
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Appearance
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Fine yellow or greenish yellow powder
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Conforms
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Visual test
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Odor & Taste
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Characteristic
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Conforms
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Organoleptic test
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Tapped Density
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20-35g/100ml
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Conforms
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ASTM D1895B
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Particle Size
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98% through 80 mesh
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Conforms
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Sieve
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Assay
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NLT Quercetin 95%
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95.75%
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HPLC
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Loss on Drying
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9.0% to 12.0%
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10.18%
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USP
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Ash
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NMT 0.5%
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0.15%
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2g /525℃ /3hrs
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Extract Solvents
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Ethanol & water
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Conforms
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/
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Heavy Metals
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NMT 10ppm
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Conforms
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ICP-MS
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Arsenic (As)
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NMT 2ppm
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Conforms
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ICP-MS
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Lead (Pb)
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NMT 2ppm
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Conforms
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ICP-MS
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Cadmium (Cd)
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NMT 1ppm
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Conforms
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ICP-MS
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Mercury(Hg)
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NMT 0.1ppm
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Conforms
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ICP-MS
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Microbiological Data
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Total Plate Count < 1,000 cfu/g
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Conforms
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GB 4789.2
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Total Yeast & Mold < 100 cfu/g
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Conforms
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GB 4789.15
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E. Coli to be absent
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Absent
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GB 4789.3
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Staphylococcus to be absent
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Absent
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GB 4789.10
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Salmonella to be absent
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Absent
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GB 4789.4
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Packing and Storage
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Packed in paper-drums and two food grade polybags inside,Net weight: 25kgs/drum.
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Keep tightly sealed, store away from moisture, strong heat and sunlight.
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Shelf Life
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3 years if sealed and stored in the recommended conditions.
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Quercetin Powder Benefits
1. Powerful Antioxidant Protection: Quercetin Powder, this remarkable flavonoid neutralizes harmful free radicals and reduces oxidative stress throughout your body, protecting cells from premature aging and damage.
2. Anti-Inflammatory Bolster: Normal aggravation administration makes a difference reduce incessant conditions whereas supporting in general wellness and comfort.
3. Immune Framework Improvement: Tweaks safe work by stabilizing pole cells and decreasing histamine discharge, making it important for regular support.
4. Cardiovascular Wellbeing: Advances solid blood vessel work, underpins typical blood weight levels, and secures against LDL cholesterol oxidation.
5. Metabolic Optimization: Upgrades mitochondrial work and vitality digestion system whereas supporting solid glucose control and affront sensitivity.

Quercetin Powder Applications
Pharmaceutical Details: Perfect for tablets and capsules focusing on hypersensitivity help, anti-inflammatory treatment, and metabolic bolster with commonplace measurements of 250-500mg daily.
Nutraceutical Items: Idealize for safe back equations, antioxidant complexes, and regular wellness items engaging to health-conscious consumers.
Functional Nourishments: Upgrades wholesome powders, wellness refreshments, and useful snacks whereas contributing characteristic assurance benefits.
Cosmetic Applications: Important expansion to anti-aging details and skin security items due to its antioxidant properties.

Certificate
• ISO9001 Quality Management System Certificate
• FSSC22000 Food Safety System Certificate
• HACCP System Certificate
• HALAL Certification
• KOF-K Certification
• FDA Registration
• Part of Hunan Botanical Extract Association (HNBEA)

FAQ
Q: How does quercetin bolster the resistant system?
A: Research proposes quercetin has antiviral and immunomodulatory impacts. It makes a difference stabilize safe cells to anticipate intemperate histamine discharge, which is included in unfavorably susceptible responses and underpins in general safe balance.
Q: How is quercetin retained by the body?
A: Quercetin has moderately moo bioavailability on its possess. It's regularly combined with bromelain (an chemical from pineapples) or Vitamin C in supplements, as these compounds can essentially upgrade its assimilation and effectiveness.
Q: What is the distinction between quercetin and other flavonoids?
A: Quercetin is one of the most plenteous and well-researched flavonoids. Its particular atomic structure gives especially solid antioxidant capacity compared to other flavonoids, making it exceedingly esteemed for wellbeing applications.
Packaging and Transportation
• Standard Bundling: 25kg/drum for commercial quantities
• Test Sizes: 100g, 1kg, 5kg, or 10kg food-grade plastic bags
• Fabric: Food-grade holders guaranteeing item integrity
• Transportation Choices: Dispatch for tests, discuss cargo for pressing orders, sea shipping for bulk quantities
• Conveyance Time: 3-5 commerce days for tests and prepared stock items
• MOQ: Test orders welcome, commercial orders begin at 25kg

Why Choose Us?
Unmatched Sourcing Control: We work specifically with certified planting bases, controlling each step from seed determination to gather timing, guaranteeing steady dynamic fixing substance and disposing of crude fabric quality fluctuations.
Advanced Extraction Innovation: Our exclusive extraction handle employments as it were immaculate water or food-grade ethanol, totally maintaining a strategic distance from hurtful solvents whereas accomplishing prevalent color immaculateness and quick solubility.
Technical Development Organization: Past providing fixings, we give total detailing arrangements counting custom mixes, solidness testing, and application research facility back for different item designs.

Warehouse & Shipping

Our Teams & Exhibitions

Contact Us
Ready to experience premium Quercetin Powder for your next project? Our technical team is standing by to discuss your specific requirements and provide customized solutions.
Email: info@kingherbs.com
Let us help you create exceptional products with our high-quality quercetin extract. Whether you need samples for evaluation or commercial quantities for production, we're committed to supporting your success with reliable quality and professional service.
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