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Natural mulberry leaf DNJ powder, also known as 1-deoxynojirimycin powder, mulberry extract powder or DNJ mulberry leaf powder, is widely used in blood sugar management supplements and health foods. The powder is extracted from carefully selected mulberry leaves and is rich in concentrated natural 1-deoxynojirimycin (DNJ). DNJ is a glucose analog that has been shown to inhibit alpha-glucosidase and reduce post-meal blood sugar spikes.
DNJ is the main active ingredient in mulberry leaves and has anti-diabetic effects. Its mechanism of action makes it a valuable natural blood sugar control option, and in recent years, the demand for natural blood sugar support ingredients has surged, especially those with clean label, plant-derived ingredients. Our mulberry leaf extract powder uses an advanced water-based extraction method to ensure high purity DNJ content while minimizing residual solvents and forming a stable powder form that is easy to formulate.
In addition, as a manufacturer with strong OEM/ODM service capabilities, with many years of experience in plant extraction and professional production facilities certified by ISO22000, FSSC22000, Halal, Kosher and Organic standards, we not only provide bulk DNJ powder, but also work closely with customers to customize formulations according to specific market needs, whether it is sugar blocking capsules, diabetic mixed teas or powder bags. We ensure batch-to-batch consistency, provide full documentation support (COA, MSDS, etc.), and provide flexible packaging options from 1 kg to 25 kg.
We provide precisely standardized DNJ content up to 1% (HPLC verified) with complete chromatogram data. This enables accurate dosing in functional foods, capsules, tablets and sachets, minimizing formulation risk.
We use a low-temperature water-based extraction process to avoid the use of ethanol or methanol, ensuring clean label and food safety. This extraction method increases the retention of bioactivity by up to 92% compared to traditional solvent extraction.
Our powder bulk density ≥ 0.55 g/mL is optimized for encapsulation and mixing operations, especially for automated production lines. This reduces downtime during filling and mixing processes.
We guarantee moisture content below 3% and perform comprehensive microbiological testing (TPC, yeast and mold, coliforms, pathogenic bacteria). Each batch is supported by COA, MSDS and TDS documents.
Capsule filling, sachets or tea bags with your brand logo. Customized DNJ specifications (0.3%, 0.5%, 1.0%). MOQ 10,000 pieces, lead time 15-20 days. Regulatory support for US, EU and Southeast Asian markets.
| Item | Specification | Result | Test Method |
| Appearance | Light yellow to brown fine powder | Light yellow powder | Visual |
| Odor & Taste | Characteristic | Characteristic | Organoleptic |
| Assay (1-Deoxynojirimycin) | ≥1.0% (HPLC) | 1.05% | HPLC |
| Mesh Size | ≥99% through 80 mesh | 100% | Sieve analysis |
| Loss on Drying | ≤5.0% | 3.12% | USP <731> |
| Ash Content | ≤5.0% | 2.45% | AOAC 942.05 |
| Bulk Density | 0.40 - 0.65 g/mL | 0.58 g/mL | Tap Density Method |
| Heavy Metals | ≤10 ppm | <10 ppm | ICP-MS |
| Lead (Pb) | ≤2.0 ppm | 0.13 ppm | ICP-MS |
| Arsenic (As) | ≤1.0 ppm | 0.08 ppm | ICP-MS |
| Cadmium (Cd) | ≤1.0 ppm | 0.05 ppm | ICP-MS |
| Mercury (Hg) | ≤0.1 ppm | ND (Not Detected) | ICP-MS |
| Total Plate Count | ≤1,000 CFU/g | 120 CFU/g | USP <2021> |
| Yeast & Mold | ≤100 CFU/g | 25 CFU/g | USP <2021> |
| Coliforms | ≤10 CFU/g | <10 CFU/g | USP <2022> |
| E. coli | Negative | Negative | USP <2022> |
| Salmonella | Negative in 25g | Negative | USP <2022> |
| Solvent Residues | NMT 0.01% (Ethanol, if used) | Not Detected | GC-MS |
| Gluten | Absent | Absent | ELISA |
| GMO Status | Non-GMO | Non-GMO | PCR Screening |
DNJ is widely used in dietary supplements to regulate blood sugar levels. It inhibits alpha-glucosidase, making it ideal for natural sugar blocking capsules and tablets.
Due to its solubility and refreshing taste, DNJ powder can be added to mixed powders or blood sugar support teas. It is popular in daily health tea solutions.
DNJ can be added to low GI or low carbohydrate nutritional shakes to slow carbohydrate absorption and help support weight management.
Some brands add DNJ to chewable supplements that target post-meal blood sugar spikes, positioning them as sugar blocker healthy snacks.
Some pet health brands are exploring its use in managing glucose metabolism in companion animals, especially for older pets or in weight formulas.
For general dietary supplements, the typical dosage of DNJ is 100-300 mg per day, depending on the desired concentration and formulation.
In tea blends or powdered mixes, each bag or scoop typically contains 200-500 mg of DNJ powder.
For functional foods or meal replacements, DNJ can be added at 0.3%-0.5% of the total mixture to exert biological activity.
The actual dosage may vary depending on product positioning, target market regulations, and synergistic ingredients in the formulation.
Yes, DNJ is generally safe and well tolerated when used at recommended doses. It is a food-derived compound with a long history of traditional use. However, for people who are taking diabetes medications, it is best to use it under professional supervision to avoid additive effects.
Yes. DNJ has a different mechanism of action than berberine or metformin - it delays intestinal absorption of sugars, while berberine regulates insulin sensitivity and hepatic glucose output. They are often combined into multi-ingredient formulas for synergistic effects.
Of course. We offer comprehensive OEM and private label services, including capsules, sachets, tea bars, or custom powder blends. We can also help you design a formulation based on your market positioning and target dosage.
For general dietary supplements, the typical dosage of DNJ is 100-300 mg per day. For functional foods or meal replacements, DNJ can be added at 0.3%-0.5% of the total mixture, while tea blends typically contain 200-500 mg per bag.
Our natural mulberry leaf DNJ powder is standardized up to 1% DNJ content verified by HPLC. We use a low-temperature water-based extraction process to avoid ethanol or methanol, ensuring zero residual solvents and preserving high bioactivity.
Our plant extraction facilities are certified by ISO22000, FSSC22000, Halal, Kosher, and Organic standards. We guarantee batch-to-batch stability, full documentation support (COA, MSDS, etc.), and complete traceability.
Work with us to get high-quality natural mulberry leaf DNJ powder - we provide bulk supply and customized OEM solutions according to your market needs. We are a certified manufacturer and global supplier with ISO22000, FSSC22000, Halal, Kosher, Organic (EU and USDA), SGS and other important qualifications. With a stable DNJ content of ≥1% (HPLC verified) and a clean water-based extraction process, our powder is ideal for capsules, tea sticks, sachets and functional blends. If you are looking for a reliable and experienced DNJ partner, we are ready to support your next project. Contact us to start cooperation today.
