Corn Silk Extract
Production Method: Plant Extraction
Active Ingredient: Flavonoids
Specification:Flavonoids: 4%-8% (HPLC)
β-Sitosterol: 5%
4;1;10:1;20:1 (TLC)
Country of Origin: China
Testing Method: High Performance Liquid Chromatography (HPLC)
Net Weight: 25 kg
Appearance: Yellow-brown to tan fine powder, possessing a characteristic, slightly sweet odor
Solubility: Easily soluble in water; slightly soluble in ethanol
Certifications: ISO9001, Kosher, Halal, FDA, GMP
Packaging: 25 kg/drum
Delivery Terms: FOB, CIF, CFR, EXW, DAP, DDP
Shipping Methods: Express, Air Freight, Sea Freight
Payment Terms: Wire Transfer (T/T) Preferred
Availability: Ample stock; fast and secure shipping
OEM/ODM: Available
Minimum Order Quantity (MOQ): 1 kg
Available to Business Customers Only
- Free Samples
- Quality Assurance
- 24/7 Customer Service
Product Introduction
Corn Silk Extract - Premium Botanical Ingredient for Health & Wellness
BioSpark (Xi'an) Biotechnology delivers enterprise-grade botanical extracts backed by science and precision.Our Corn Silk Extract is standardized to contain 4%-8% Flavonoids and 5% β-Sitosterol, measured by HPLC for guaranteed potency. Sourced from Zea mays L. stigmas, this yellow-brown fine powder offers exceptional water solubility—ideal for RTD beverages and supplement formulations.
With certifications counting ISO9001, Legitimate, Halal, FDA, and GMP, we guarantee each 25 kg drum meets universal quality benchmarks. You'll advantage from our 24-month rack life beneath legitimate capacity, comprehensive OEM/ODM back, and adaptable conveyance terms (Coxcomb, CIF, DDP). Our least arrange begins at fair 1 kg, with plentiful stock guaranteeing quick expedite through express, discuss, or ocean freight.

Why Choose BioSpark for Your Corn Silk Extricate Needs?
Scientific Standardization You Can Trust
We utilize Tall Execution Fluid Chromatography (HPLC) to confirm dynamic compounds. This implies steady flavonoid levels in each batch—eliminating mystery for your item development.
Unmatched Water Solubility
Your definition challenges conclusion here. Our extricate accomplishes clear, sediment-free arrangements at room temperature. Culminate for ready-to-drink utilitarian refreshments and clean-label products.
Global Compliance Made Simple
You pick up get to to multi-region certifications without additional legwork. From Europe to North America, our administrative documentation bolsters smooth showcase passage over continents.
Flexible Generation Partnership
Whether you require 1 kg for R&D trials or bulk orders for commercial dispatch, our OEM/ODM administrations adjust to your timeline and budget. We handle equation optimization, custom bundling, and private labeling.

Specification of Corn Silk Extract
| Parameter | Specification |
|---|---|
| Active Ingredient | Flavonoids (4%-8%), β-Sitosterol (5%) |
| Extract Ratio | 4:1, 10:1, 20:1 (TLC) |
| Testing Method | HPLC |
| Appearance | Yellow-brown to tan fine powder |
| Mesh Size | 80-100 mesh |
| Solubility | Highly water-soluble; slightly soluble in ethanol |
| pH Range | 4.5-6.5 (aqueous solution) |
| Moisture Content | ≤5% |
| Heavy Metals | ≤10 ppm |
| Shelf Life | 24 months (cool, dry storage) |
| Packaging | 25 kg/fiber drum |
| MOQ | 1 kg |
Certificate of Analysis (COA)
We provide detailed COA documentation for every batch, including:
- Flavonoid content verification (HPLC)
- β-Sitosterol quantification
- Microbial testing (Total Plate Count, Yeast & Mold, E. coli, Salmonella)
- Heavy metal screening (Pb, As, Cd, Hg)
- Pesticide residue analysis
- Physical property confirmation (color, odor, particle size)
Request your sample COA to evaluate our quality standards before placing orders.
| Product Name: | corn silk extract powder | |||
| Latin Name: | Zea Mays Silk Extract | |||
| Batch Quantity : | 1000Kg | BatchNumber : | GH2026020513 | |
| Mfg Date : | 02,05,2026 | Exp Date : | 02,06,2028 | |
| Analysis Item | Specification | Result | Method | |
| Specification | Proportion | Conforms | TLC | |
| Chemical Physical Control | ||||
| Appearance | Fine powder | Conforms | Sensory | |
| Color | White to pale yellow | Conforms | Vis ua | |
| Odor | Characteristic | Conforms | Gustatory | |
| Sieve Analysis | 100% pass 80 mesh | Conforms | CP2020 | |
| Loss on Drying | ≤5% | 4.36% | GB/T5009.3 | |
| Residue On Ignition | ≤4.5% | 4.52% | GB/T5009.4 | |
| Heavy Metals | ≤10ppm | Conforms | AAS | |
| Arsenic (As) | ≤ 2ppm | Conforms | AAS(GB/T5009.11) | |
| Lead (Pb) | ≤ 2ppm | Conforms | AAS(GB/T5009.12) | |
| Cadmium (Cd) | ≤ 2ppm | Conforms | AAS(GB/T5009.15) | |
| Mercury (Hg) | ≤0.1ppm | Conforms | AAS(GB/T5009.17) | |
| Microbiology Control | ||||
| Total Plate Count | <10000cfu/g | Conforms | GB/T4789.2 | |
| Yeast & Mold | <1000cfu/g | Conforms | GB/T4789.15 | |
| E. Coli | Negative | Negative | GB/T4789.3 | |
| Salmonella | Negative | Negative | GB/T4789.4 | |
| Staphylococci n | Negative | Negative | GB/T4789 . 10 | |
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Parking
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Packed In Paper-drums and two plastic-bags inside. Net Weight : 25kgs/drum.
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Storage
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Store in cool & dry place. Do not freeze . Keep away from str ong light and heat .
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Shelf life
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2 years when properly stored.
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Certificates
BioSpark holds multiple certifications, including Corn Silk Extract, demonstrating our commitment to excellence:
- ISO9001 – Quality Management System
- GMP – Good Manufacturing Practice
- Halal & Kosher – Religious compliance for global markets
- FDA Registration – U.S. market access
- Third-Party Lab Testing – Independent verification available upon request

Benefits of Corn Silk Extract
Natural Diuretic Support
The flavonoids—quercetin, luteolin, and apigenin—help advance sound urinary stream. You'll appreciate the tender, supported diuretic activity without unforgiving side effects.
Cardiovascular Wellness
Clinical investigate appears corn silk may back solid blood weight levels by advancing vascular widening. The extricate too makes a difference keep up adjusted cholesterol and triglyceride levels.
Metabolic Balance
Corn silk polysaccharides make strides affront affectability. This makes the extricate profitable for details focusing on sound blood sugar management.
Anti-Inflammatory Action
Organic acids like chlorogenic corrosive and caffeic corrosive repress incendiary go betweens. Your clients advantage from diminished aggravation in urinary and hepatobiliary systems.
Antioxidant Protection
Free radical rummaging movement ensures cells from oxidative stretch. This contributes to by and large cellular wellbeing and longevity.
Liver & Gallbladder Support
Traditional utilize for scattering clamminess and clearing jaundice adjusts with advanced inquire about on bile discharge advancement. Perfect for hepatobiliary wellbeing formulations.
Application Areas
Dietary Supplements
Capsules, tablets, and softgels for urinary wellbeing, cardiovascular back, and metabolic wellness. Your item line picks up a science-backed botanical fixing with clean-label appeal.
Functional Beverages
The extraordinary water dissolvability makes the item idealize for RTD teas, powdered drink blends, and wellness shots. Make straightforward, sediment-free definitions customers love.
Sports Nutrition
Support electrolyte adjust and metabolic work in pre-workout and recuperation items. Competitors esteem common diuretic impacts for competition preparation.
Traditional Home grown Blends
Integrate into TCM-inspired equations nearby complementary botanicals. Respects centuries of conventional utilize whereas assembly advanced quality standards.
Cosmeceuticals
Anti-inflammatory and antioxidant properties suit topical applications for alleviating skin formulations.

Quality Control
Raw Fabric Screening
We source Zea mays L. marks of disgrace from certified natural ranches. Each clump experiences character confirmation and defilement screening some time recently processing.
Advanced Extraction Technology
Our state-of-the-art offices utilize controlled temperature and weight to protect bioactive compounds. This guarantees greatest flavonoid maintenance and reliable potency.
Multi-Point Testing Protocol
In-process quality checks screen molecule measure, dampness substance, and dissolvability. Last items experience comprehensive examination counting HPLC, microbial testing, and overwhelming metal screening.
Traceability System
Every bunch gets a one of a kind part number connecting back to source fabric, generation records, and test comes about. You pick up total supply chain transparency.
R&D Results
Our research team continuously validates corn silk extract efficacy through:
- In-vitro antioxidant capacity studies (DPPH, ABTS assays)
- Solubility optimization for beverage applications
- Stability testing under various pH and temperature conditions
- Bioavailability enhancement research
- Synergy studies with complementary botanicals
We share relevant data to support your product claims and regulatory submissions.

Packaging and Transportation
Primary Packaging
25 kg fiber drums with twofold food-grade polyethylene liners. Secures against dampness, light, and defilement amid capacity and transit.
Custom Bundling Options
Need littler units? We offer 1 kg, 5 kg, and 10 kg thwart packs for inspecting or boutique item lines. Private labeling accessible for brand partners.
Global Coordinations Network
Choose from express (3-7 days), discuss cargo (5-10 days), or ocean cargo (20-35 days) based on your criticalness and budget. We handle send out documentation and traditions clearance.
Storage Recommendations
Keep in cool, dry conditions underneath 25°C. Dodge coordinate daylight and dampness introduction to keep up the 24-month rack life.

After-Sales Service
Technical Support
Our group helps with definition questions, measurement proposals, and compatibility testing. You get continuous discussion all through item development.
Sample Availability
Request 50-100g tests to assess quality some time recently committing to bigger orders. We give COA and detail sheets with each test shipment.
Complaint Resolution
In the uncommon occasion of quality concerns, we react inside 24 hours with examination and determination plans. Your fulfillment drives our nonstop improvement.
Reorder Convenience
Registered clients get to streamlined reordering with spared shipping inclinations and installment strategies. Track orders in real-time through our system.

FAQ
Q: What is the commonplace lead time for bulk orders?
A: We keep up sufficient stock for orders up to 500 kg, shipping inside 3-5 trade days. Bigger amounts or custom details require 10-15 days.
Q: Can you give organic-certified the product?
A: Yes, we offer USDA Natural and EU Natural certified forms. If you don't mind indicate your certification necessities when asking quotes.
Q: How do I decide the right determination for my application?
A: Our specialized group assesses your item objectives, target dose, and conveyance arrange. We prescribe determinations that adjust viability, solvency, and cost-effectiveness.
Q: What installment terms do you accept?
A: We favor wire exchange (T/T) with 30% store and 70% adjust some time recently shipment. Letter of Credit (L/C) accessible for built up partners.
Q: Do you offer administrative back for distinctive markets?
A: Completely. We give fixing documentation, allergen articulations, and compliance direction for FDA (U.S.), EFSA (EU), and other territorial authorities.
Q: Is your office inspected by third parties?
A: Yes, we welcome client reviews and experience yearly third-party GMP assessments. Review reports accessible to qualified accomplices.
Contact Us
Ready to enhance your product line with premium Corn Silk Extract? Our team is here to answer questions and provide customized solutions. Reach out today: sales@biosparkcn.com
Send Inquiry
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