What is Mulberry Leaf Extract Powder?
As a mulberry leaf extract powder (MLE) manufacturer. The 1-Deoxynojirimycin (DNJ) is a kind of alkaloid present in Mulberry leaves and root bark. Among this components, the most valuable are rutoside and DNJ (1-Deoxynojimycin). The latest chinese research has shown that mulberry leaf extract powder rutoside and DNJ are effective in regulating blood fat, balancing blood pressure, reducing blood glucose, and boosting metabolism. So they are widely used as raw materials for curing diabetes.

Mulberry Leaf Extract Powder Production Process
1. Raw Material Pretreatment
- Cleaning and Drying: Select high-quality, mold-free mulberry leaves. Remove sand and debris using a drum washing machine, then dry in a forced-air circulation oven until the moisture content meets specified standards.
- Crushing: Use a universal pulverizer to crush the dried leaves into coarse powder to increase the contact surface area for subsequent extraction.
2. Extraction and Solid-Liquid Separation
- Extraction: Load the mulberry leaf powder into a multi-functional extraction tank, add a specified proportion purified water, and perform heat-reflux extraction. Typically, the process is repeated 2–3 times, and the extracts are combined.
- Filtration and Concentration: Remove solid residues via solid-liquid separation using a disc centrifuge or plate-and-frame filter press. Then, transfer the clarified extract to a double-effect external circulation evaporator for vacuum concentration, yielding a concentrated extract paste or concentrated solution.
3. Alcohol Precipitation
- Precipitation: Add ethanol to the above concentrated solution under constant stirring until the final alcohol content reaches a specified volume fraction.
- Solid-Liquid Separation: Separate the precipitated solids from the supernatant using a tubular centrifuge or vacuum filtration equipment, and collect the supernatant rich in target components.
4. Cation Exchange Resin Purification
- Column Loading: Concentrate the supernatant from the alcohol precipitation step to recover ethanol, then dilute with water and adjust the pH to a slightly acidic level to ensure the target alkaloids exist in cationic form. Pass this solution slowly through a column packed with cation exchange resin. Alkaloids such as DNJ, which are weakly basic, are selectively adsorbed by the resin.
- Washing and Elution: First, rinse the resin column with purified water to remove water-soluble impurities. Then, elute with a specific concentration of ammonia water or alkaline ethanol solution, and collect the eluate with a high concentration of alkaloids.
5. Macroporous Adsorption Resin Refining
- Column Loading: Adjust the pH of the effluent or eluate from the cation exchange column to an appropriate level, then pass it slowly through a column packed with macroporous adsorption resin.
- Gradient Elution: Start by flushing the column with water or low-concentration ethanol to wash out water-soluble impurities, followed by elution with a higher concentration of ethanol to desorb the target components. Collect the target desorption solution.
6. Decolorization and Fine Filtration
- Decolorization: Add an appropriate amount of activated carbon powder to the collected refined solution and stir at a set temperature for a defined duration to remove dark-colored substances like chlorophyll.
- Fine Filtration: Use a plate-and-frame filter or titanium rod filter equipped with microporous membranes for precision filtration, ensuring complete removal of the decolorizing agent and producing a clear, transparent solution.
7. Concentration and Sterilization
- Vacuum Concentration: Transfer the decolorized clear solution to a vacuum concentrator, evaporate and recover ethanol at a low temperature, and concentrate to a paste form suitable for drying.
- Sterilization: Apply high-temperature short-time (HTST) sterilization or microporous membrane sterile filtration to the concentrated solution to control microbial limits.
8. Drying, Milling, and Sieving
- Drying: Feed the sterile concentrated solution into a spray dryer to obtain dry powder with low moisture content (<5%) in a single pass.
- Milling and Sieving: The dried particles may agglomerate; therefore, break them up using a high-efficiency mill and pass through a vibrating screen (80–100 mesh) to ensure uniform particle size distribution.
9. Final Blending and Packaging
- Final Blending: Transfer multiple batches of the sieved extract powder into a three-dimensional motion mixer and blend for sufficient time to ensure homogeneity and batch-to-batch consistency.
- Packaging: In a clean area, the blended powder is packaged into primary containers (aluminum foil pouches) using an automatic filling and sealing machine. Finally, proceed with outer packaging, labeling, and cartoning.

The Mulberry Leaf Extract Powder Manufacturer Undersun
At Undersun, we offer a wide range of premium-quality dietary, herbal, and organic ingredients to enhance your product formulations. With over 1,400 SKUs available on our B2B e-commerce platform, you can easily find what you need and place your order in just a few clicks.
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Have ISO, FDA, HALAL, KOSHER, FSSC22000 Certifications
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At undersun, we specialize in producing high-quality plant extracts, providing natural solutions for a wide range of industries including pharmaceuticals, cosmetics, food and beverages, and dietary supplements.
Mulberry Leaf Extract Powder Package
Bulk mulberry leaf extract powder packaging plays a crucial role in preserving the product's freshness, quality, and shelf life. Consider the following packaging features:
Packaging And Delivery
| Packaging Details | 25kg/Drum, according to your requirements |
In Stock
| Supply Ability | 5000 Kilogram/Kilograms per Month |
Lead Time
| Quantity (kilograms) | 1-500 | >500 |
| Lead time (days) | 5 | To be negotiated |

Logistics transportation:

Payment term:
T/T ,Western union .Escrow ,L/C or open payment terms

Where to Buy Mulberry Leaf Extract Powder?
Undersun supplies mulberry leaf extract powder, 80 mesh, HPLC tested. Produced using a strict quality control process, it undergoes testing for moisture, heavy metals, and microbial safety. COA, specification sheet, SDS, flow chart, and other documentation are available.
Don't miss out on the opportunity to elevate your formulations. Contact us today to learn how we can support your success in the market!
Factory FAQ:
1. What types of products does the factory manufacture?
We specialize in Dietary Supplements, Organic Products, Food and Beverage Additives, Fruit and Vegetable Powders.
2. What are the factory operating hours?
Our factory operates 24 hours a day.
3. How do you ensure product quality?
We implement strict quality control measures, including regular inspections and testing at various production stages.
4. Can I tour the factory?
Yes, we offer tours by appointment.
5. What is the lead time for orders?
The lead time depends on the product and order size. It is typically 1-7 days.
6. How can I place an order?
You can place an order by contacting our sales team at herbext@undersun.com.cn or by visiting our website.
7. Do you offer custom manufacturing?
Yes, we provide custom manufacturing solutions tailored to your specific needs.
8. What certifications does the factory hold?
We have obtained multiple certifications including ISO, FDA, HALAL, KOSHER, FSSC22000, USDA Organic, and EU Organic, ensuring compliance with industry standards.
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