Description
A standardized extract from white mulberry leaves (Morus alba), the leaf material that feeds silkworms in sericulture. Standardized to 1-deoxynojirimycin (DNJ) content, an iminosugar alpha-glucosidase inhibitor that supports postprandial blood-glucose management. Used in blood-glucose-support and weight-management dietary supplements.
Yellow-green to brown-green free-flowing powder. Highly water-soluble.
We supply food-grade Mulberry Leaf Extract from manufacturers in China holding ISO, Halal, Kosher and other certifications relevant to the product and production.
Common market grades include 1 percent DNJ (the workhorse supplement grade matching the dominant clinical formats), 2 percent DNJ (premium grade), 5 percent DNJ (high-end concentrated grade), and 10:1 Ratio Extract (unstandardized whole-leaf format). Flavonoid-standardized grades (e.g., 10 percent flavonoids) are offered as an alternative standardization.
Bulk and reduced-MOQ shipments. Batch-level COA covering DNJ content (HPLC), total flavonoids, residual solvents, heavy metals, pesticides, and microbiology.
Introduction
Mulberry leaves have been used in Traditional Chinese Medicine for over 1,000 years for diabetes-like conditions (xiao ke syndrome) and respiratory complaints. The leaves are simultaneously the principal feed crop in sericulture, providing a large established agricultural base.
Industrial production proceeds by hot-water extraction of dried mulberry leaves, followed by concentration, optional ion-exchange purification to elevate DNJ content, and spray-drying to defined grades. DNJ is an iminosugar structurally analogous to glucose that competitively inhibits intestinal alpha-glucosidase.
Recognized as a permitted food ingredient by the U.S. FDA and the European Food Safety Authority. In Japan, mulberry leaf extract is approved as a Food for Specified Health Uses (FOSHU) for blood-glucose-management claims.
Clinical evidence supports mulberry leaf DNJ for postprandial glucose and insulin response in healthy and pre-diabetic adults at appropriate pre-meal doses, with effects mechanistically analogous to pharmaceutical alpha-glucosidase inhibitors at lower potency.
Strategic positioning is dominated by blood-glucose-support and weight-management dietary supplements, with rapid growth in functional beverages targeting metabolic wellness and pre-meal carbohydrate-management formats.
Where it is used
- Blood-glucose-support and postprandial-glucose-management dietary supplements (the dominant commercial application)
- Weight-management and carbohydrate-blocker supplement formulations
- Functional beverages: glucose-management and metabolic-wellness drinks
- Premium herbal teas and traditional medicine preparations
- Diabetic-targeted foods and nutritional bars
- Pre-meal supplement formulations and gummies
- Sports nutrition: carbohydrate-management positioning
- Pet supplements positioned for metabolic support in companion animals
Technical data
| Item | Specification |
|---|---|
| Appearance | Yellow-green to brown-green free-flowing powder |
| 1-Deoxynojirimycin (HPLC) | 1% / 2% / 5% (grade dependent) |
| Total flavonoids (where standardized) | ≥ 10% |
| Particle size | 95% pass 80 mesh |
| Loss on drying | ≤ 5.0% |
| Residue on ignition | ≤ 5.0% |
| Heavy metals (as Pb) | ≤ 2 mg/kg |
| Total plate count | ≤ 1000 cfu/g |
| Source | Morus alba dried leaves |
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