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DESCRIPTION |
Stevia Adsorption Ion Exchange Resin is a specialized macroporous adsorption resin specifically designed for the extraction and purification of steviol glycosides from stevia leaves. These resins utilize physical adsorption mechanisms to separate and purify stevioside, rebaudioside A, and other sweet components from crude stevia extracts.
Stevia Sweetener Production: Primary application for purification and decolorization of stevia extracts in natural sweetener manufacturing.
Glycoside Separation: Selective separation of different steviol glycosides (stevioside, rebaudioside A, C, D) based on their molecular properties.
Decolorization and Deodorization: Removal of pigments, chlorophyll, and unwanted odors from crude stevia extracts.
Food and Beverage Industry: Production of high-purity stevia extracts for use as natural sweeteners in food and beverage products.
Pharmaceutical Applications: Purification of stevia components for potential pharmaceutical and nutraceutical uses.
Type: Macroporous Adsorption Resin
Matrix: Polystyrene-DVB or Polyacrylic
Functional Groups: Non-ionic or weak ionic character
Polarity: Various polarities available for different separation needs
Specific Surface Area: 400-800 m²/g
Pore Diameter: 5-15 nm (optimized for stevia molecules)
Particle Size Range: 0.3-1.2 mm
Moisture Retention: 60-75%
Shipping Weight: 650-750 g/L
Uniformity Coefficient: ≤1.6
Maximum Operating Temperature: 80°C
pH Stability Range: 0-14
Note: These parameters are specific to stevia purification applications.
1. Operating Conditions
Adsorption Flow Rate: 1 - 4 BV/h
Desorption Flow Rate: 0.5 - 2 BV/h
Operating Temperature: 20 - 60°C
Optimal pH Range: 4 - 8 for adsorption
2. Adsorption & Desorption
Adsorption Solvent: Water or hydroalcoholic solutions
Desorption Solvent: Ethanol-water mixtures (30-70%)
Solvent Volume: 2 - 4 BV for complete desorption
Contact Time: 2 - 8 hours for optimal adsorption
3. Regeneration & Cleaning
Cleaning Solutions: NaOH (1-4%), HCl (2-5%), or ethanol
Regeneration Flow Rate: 2 - 4 BV/h
Contact Time: 30 - 120 minutes
Rinse Requirements: Thorough rinsing with water after regeneration
4. Performance Indicators
Adsorption Capacity: 50-200 mg steviol glycosides/g resin
Purity Improvement: Can increase purity from 40-60% to 80-95%
Decolorization Rate: >90% color removal achievable
Recovery Yield: 85-95% steviol glycosides recovery
5. Important Considerations
Pre-treatment: Crude extract should be filtered to remove particulates
Solvent Quality: Use food-grade solvents for desorption
Microbial Control: Implement sanitation protocols to prevent microbial growth
Temperature Control: Maintain stable temperature for consistent performance
ADVANTAGES |

High Selectivity: Specifically designed to selectively adsorb steviol glycosides while excluding impurities.
Excellent Decolorization Capability: Effectively removes color bodies and pigments from crude extracts.
Good Physical Stability: Macroporous structure provides excellent resistance to physical degradation.
High Adsorption Capacity: Substantial capacity for steviol glycosides ensures efficient operation.
Regenerable Operation: Can be regenerated and reused multiple times, reducing operational costs.
PACKING |
25Liter Bag
25kg Bag
50kg Plastic Barrel

OUR FACTORY |





| WHY UMEK |
With 28 years in water treatment and 16 years of international market experience, UMEK delivers one-stop solutions trusted in over 120 countries for efficient and reliable results. As the largest industrial water treatment wholesaler in the north, backed by 30+ professionals and a unique culture of mentorship and excellence, we are committed to providing high-quality products and customized services.
We partner with top-tier suppliers like Runxin Valve and Pentair, ensuring certified products with strict quality control. UMEK also offers a value-driven environment, comprehensive training, and growth opportunities, empowering employees and achieving mutual success. Choose UMEK – your partner in expertise, innovation, and sustainable development!

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EXHIBITION |
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| FAQ |
A1. Why choose UMEK for industrial water treatment solutions?
Q: With 28+ years in water treatment and 16+ years of global expertise, UMEK combines innovation, certified quality, and tailored services. As the largest wholesaler in the north, we deliver trusted solutions across 120+ countries, backed by 30+ professionals and partnerships with industry leaders like Runxin Valve and Pentair.
A2. Are UMEK products certified for international standards?
Q: Yes. All products undergo strict quality control and comply with global certifications (e.g., ISO, CE, WRAS). Our partnerships with top-tier suppliers ensure reliability and performance in diverse industrial applications.
A3. Can UMEK provide customized water treatment solutions?
Q: Absolutely. We specialize in tailored services, designing systems to meet unique client needs. Our team collaborates closely with you to ensure optimal efficiency, cost savings, and compliance.
A4. How does UMEK ensure product quality?
Q: Every product is rigorously inspected, tested, and certified. We work exclusively with vetted suppliers like Runxin Valve and Pentair, adhering to international quality benchmarks at every production stage.
A5. What industries does UMEK serve internationally?
Q: We serve 120+ countries across sectors like manufacturing, energy, municipal water, and agriculture. Our solutions adapt to regional regulations, climates, and operational demands for seamless global delivery.
A6. Does UMEK prioritize sustainability in its solutions?
Q: Yes. Sustainability drives our innovation. We optimize water reuse, reduce chemical waste, and integrate energy-efficient technologies to support clients’ environmental and ESG goals.
A7. What post-purchase support does UMEK offer?
Q: Clients receive lifelong technical support, including system maintenance guidance, troubleshooting, and employee training. Our mentorship-driven team ensures your operational success long after installation