The Extract Factory is a leading manufacturer and wholesale supplier of premium botanical extracts, specializing in high-quality Mulberry Leaf Extract derived from Morus alba L. We provide bulk raw material solutions, OEM contract manufacturing, and private-label services for global dietary supplement, functional food, and nutraceutical formulators. Our standardized Mulberry Leaf Extract delivers verified bioactive potency, complete supply chain traceability, and competitive bulk pricing for long-term procurement partnerships.
Product Overview — Science-Backed Botanical Efficacy
Our Mulberry Leaf Extract, also referred to as Morus alba Leaf Extract or White Mulberry Leaf Powder, is meticulously standardized for two principal bioactive markers: 1-deoxynojirimycin (DNJ) and Mulberroside A. DNJ is a naturally occurring iminosugar widely recognized in botanical pharmacology for its role in supporting healthy glucose metabolism through alpha-glucosidase inhibition, thereby helping to moderate postprandial blood sugar fluctuations. Mulberroside A, a stilbene glycoside, contributes significant antioxidant capacity, supporting cellular protection against oxidative stress and complementing metabolic wellness formulations.
This plant-derived extract serves as an essential functional ingredient for formulators developing evidence-based products targeting blood sugar management, metabolic support, and antioxidant defense. It integrates seamlessly into hard-shell capsules, tablets, powdered drink mixes, and functional beverage matrices.
Botanical Sourcing & Manufacturing Excellence
Vertically Integrated & Traceable Supply Chain
We source Morus alba leaves from controlled agricultural environments with full traceability from cultivation through final extraction. Raw materials are harvested at peak phytochemical maturity to maximize endogenous DNJ and flavonoid concentrations. Each incoming lot undergoes macroscopic identity verification, foreign matter screening, and preliminary phytochemical profiling before release to manufacturing.
Advanced Extraction & Standardization
Utilizing purified water and food-grade ethanol extraction, followed by low-temperature vacuum concentration and spray-drying technology, we preserve thermally sensitive bioactive compounds while achieving exceptional purity. The resulting brownish-yellow fine powder exhibits uniform particle distribution, improved dry-flow characteristics, and reliable batch-to-batch standardization that exceeds conventional market specifications.
Why Partner with The Extract Factory for Mulberry Leaf Extract?
Industry-Leading Bioactive Standardization
Our Mulberry Leaf Extract is standardized to contain 1–10% DNJ and 2–10% Mulberroside A, verified via HPLC and TLC analytical methodologies. While many commodity-grade suppliers offer only 0.5–2% DNJ concentration, our elevated standardization provides formulators with greater formulation flexibility, reduced reliance on high-fill excipients, and stronger credibility for finished-product label claims.
Uncompromising Quality Control & Purity
Through vertically integrated cultivation and cGMP-compliant manufacturing, we achieve >98% batch-to-batch consistency in bioactive content. Every production lot is screened for heavy metals, microbial contaminants, residual solvents, aflatoxins, and pesticide residues to ensure compliance with USP, EU, and global food safety standards.
Scalable Bulk Supply & Flexible Procurement
With production capacity supporting orders from 1 kg pilot samples to 25,000 kg bulk shipments, The Extract Factory accommodates early-stage product development and high-volume commercial manufacturing alike. Strategic raw material inventory management prevents supply disruptions for multinational brands and regional distributors.
Comprehensive Regulatory & Certification Portfolio
Our Mulberry Leaf Extract is manufactured under ISO 22000, cGMP, and FSSC 22000 quality systems. Available certifications include USDA Organic, Halal, Kosher, and Non-GMO verification. Complete documentation—including Certificates of Analysis (COA), material safety data sheets (MSDS), and process flow charts—supports seamless regulatory filings, import clearance, and finished-product audits.
Technical Specifications & Certificate of Analysis (COA)
Physical & Chemical Properties
- Active Ingredient (1-Deoxynojirimycin / DNJ): ≥1.0% by HPLC | Result: 1.18%
- Assay Methods: HPLC, TLC
- Extract Ratio: 10:1 (TLC)
- Appearance: Brownish-yellow fine powder
- Organoleptic Profile: Characteristic odor; slightly bitter taste
- Particle Size: ≥95% passing 80 mesh sieve
- Loss on Drying: ≤5.0% | Result: 3.21%
- Total Ash: ≤5.0% | Result: 2.47%
- Bulk Density: 0.40–0.65 g/ml | Result: 0.52 g/ml
- Tap Density: 0.55–0.80 g/ml | Result: 0.66 g/ml
- Solubility: Partially soluble in water
- pH (10% aqueous solution): 5.0–7.0 | Result: 6.12
Safety & Microbial Profile
- Heavy Metals (Total): ≤10 ppm | Complies
- Lead (Pb): ≤2.0 ppm | Result: 0.34 ppm
- Arsenic (As): ≤1.0 ppm | Result: 0.12 ppm
- Cadmium (Cd): ≤1.0 ppm | Result: 0.09 ppm
- Mercury (Hg): ≤0.1 ppm | Result: 0.01 ppm
- Total Plate Count: ≤10,000 CFU/g | Result: 480 CFU/g
- Yeast & Mold: ≤100 CFU/g | Result: 22 CFU/g
- E. coli: Negative | Negative
- Salmonella: Negative | Negative
- Staphylococcus aureus: Negative | Negative
- Coliforms: ≤100 CFU/g | Result: <10 CFU/g
Contaminant Screening
- Pesticide Residue: Complies with USP/EU standards (GC-MS)
- Aflatoxins (B1+B2+G1+G2): ≤5 ppb | Result: <2 ppb
- Aflatoxin B1: ≤2 ppb | Result: <1 ppb
- Residual Solvents: Complies with USP <467> (GC)
- GMO Status: Non-GMO (PCR verified)
Formulation Guidelines & Technical Considerations
Moisture Sensitivity & Storage Stability
As a hygroscopic botanical powder, Mulberry Leaf Extract requires protection from ambient humidity to prevent agglomeration and potential degradation of DNJ activity. Store in tightly sealed containers within a cool, dry warehouse environment (relative humidity ≤60%). For extended bulk warehousing, nitrogen-flushed packaging is recommended to preserve oxidative stability.
Thermal and Photochemical Stability
Minimize exposure to high temperatures during blending, granulation, and tablet compression, as excessive thermal stress may compromise the structural integrity of heat-sensitive iminosugars and phenolic glycosides. Ultraviolet radiation should also be minimized during storage and in finished packaging to preserve antioxidant potency. Opaque or amber primary packaging is advisable for sensitive delivery formats.
Particle Size & Dispersion Characteristics
With 95% of particles passing an 80-mesh sieve, our extract exhibits excellent flow properties and homogeneous distribution in dry powder blends, protein matrices, and solid dosage forms. The fine particle size enhances surface area contact, supporting improved dissolution kinetics in aqueous beverage systems.
pH Compatibility & Solubility
The extract demonstrates optimal physicochemical stability in neutral to mildly acidic conditions (pH 5.0–7.0). Formulators should avoid strongly alkaline matrices, as extreme pH may reduce solubility and precipitate bioactive compounds. In clear beverage applications, pre-hydration solubility trials are recommended to assess clarity, sedimentation rates, and suspension stability.
Sensory Profile & Flavor Optimization
Natural Mulberry Leaf Extract imparts a characteristic slightly bitter, herbaceous taste profile typical of concentrated botanical actives. When incorporated into functional beverages, meal replacements, or chewable delivery systems, flavor masking through natural high-intensity sweeteners (stevia, monk fruit), citrus botanicals, or complementary flavor modifiers is recommended without compromising clean-label positioning.
Ingredient Synergy & Compatibility
Mulberry Leaf Extract exhibits broad compatibility with dietary fibers, plant proteins, and other metabolic-support botanicals such as cinnamon bark extract, bitter melon extract, and green tea catechins. Formulators should conduct pilot-scale compatibility studies to evaluate homogeneity, pH drift, and potential precipitation when combining with polyphenol-rich or protein-dense ingredient systems.
Industry Applications & End-Use Formulations
Blood Sugar & Glucose Metabolism Supplements
Leveraging the alpha-glucosidase inhibitory properties of DNJ, this extract serves as a foundational active in capsules, tablets, and stick-pack powders targeting postprandial glycemic control, insulin sensitivity, and metabolic syndrome support protocols.
Weight Management & Low-Glycemic Nutrition
Incorporated into meal replacement powders, ketogenic formulations, and functional snack bars, Mulberry Leaf Extract supports carbohydrate metabolism and aligns with low-glycemic index nutrition trends. Its plant-derived, low-calorie profile appeals to health-conscious consumer demographics.
Functional Beverages & RTD Applications
The partially water-soluble nature and fine particle size make this extract suitable for inclusion in ready-to-drink teas, botanical wellness waters, and functional juice blends. When properly stabilized with suspension agents or emulsifiers, it contributes both metabolic functional benefits and subtle herbal flavor depth.
Comprehensive Nutraceutical Complexes
Frequently combined with fenugreek extract, gymnema sylvestre, banaba leaf extract, and chromium polynicotinate in multi-ingredient metabolic support formulas. The standardized Mulberroside A content further enhances the antioxidant and cellular health value of anti-aging supplement portfolios.
Clinical Nutrition & Geriatric Wellness
Preferred by formulators serving senior nutrition and clinical dietary segments due to its natural botanical origin, favorable tolerability profile, and established traditional usage in supporting healthy metabolic function.
Recommended Usage Levels
- Capsules & Tablets: 100–300 mg per serving, calibrated to target DNJ dose and standardization level.
- Powdered Functional Beverages: 0.5–2.0% of total formula weight, adjusted for solubility and organoleptic balance.
- Nutritional Bars & Baked Goods: 1–3% of total formulation, typically combined with dietary fiber or protein carriers to optimize texture and mitigate bitter aftertaste.
- Liquid Extracts & Suspensions: Suitable for incorporation with appropriate dispersing agents; verify sedimentation stability under accelerated aging conditions.
Formulation Note: Final dosage should be validated based on intended regulatory claims, target demographic, and synergy with co-active ingredients.
Packaging, Storage & Logistics
Bulk Packaging Options
Standard packaging includes 25 kg food-grade fiber drums with double-layer polyethylene liner bags to ensure moisture barrier integrity. Custom packaging configurations—including 1 kg foil pouches, 5 kg vacuum-sealed packs, and private-label retail formats—are available under our OEM/private-label programs to support flexible manufacturing workflows.
Shelf Life & Storage Recommendations
When stored unopened in a cool (≤25°C), dry environment away from direct sunlight, this botanical extract maintains stability for 24 to 36 months. Once opened, containers should be resealed immediately and contents used within the validated retest period. Refrigeration is not required but may further extend retention of bioactive marker compounds.
Frequently Asked Questions (FAQ)
Q1: Does Mulberry Leaf Extract impart a bitter taste to finished products?
A: Naturally, concentrated Mulberry Leaf Extract possesses a mild bitter and herbaceous flavor profile. This can be effectively managed through strategic formulation with natural high-intensity sweeteners, botanical flavor modifiers, or fruit-based masking systems while maintaining a clean-label product positioning.
Q2: Is this extract appropriate for diabetic-friendly product lines?
A: Yes. The low glycemic impact and DNJ-mediated support for glucose modulation make it highly suitable for diabetic and prediabetic wellness products. Formulators should ensure finished products remain free from added sugars and utilize low-glycemic index carriers to complement the extract's functional profile.
Q3: What is the typical stability profile in beverage and powder matrices?
A: DNJ and Mulberroside A demonstrate acceptable stability under moderate processing conditions. However, prolonged exposure to elevated temperatures, alkaline pH, or UV radiation may accelerate degradation. We recommend utilizing protective packaging, maintaining neutral pH ranges, and conducting accelerated stability testing during product development.
Q4: Can Mulberry Leaf Extract be combined with other herbal standardizes?
A: Absolutely. It exhibits broad compatibility with other botanical extracts targeting metabolic health. Nevertheless, formulators should perform bench-top compatibility trials to evaluate potential precipitation, pH interactions, or flavor conflicts when combining with polyphenol-rich or protein-heavy ingredients.
Q5: How can purchasing managers verify DNJ standardization authenticity?
A: Reputable botanical suppliers should provide third-party validated Certificates of Analysis specifying DNJ content by HPLC, along with botanical identity confirmation, heavy metals screening, and microbial limits. The Extract Factory furnishes comprehensive COAs and origin documentation with every shipment, ensuring procurement transparency and specification adherence.
Your Reliable Mulberry Leaf Extract Manufacturer & Wholesale Supplier
The Extract Factory delivers premium-grade Mulberry Leaf Extract engineered for global nutraceutical manufacturers, functional food developers, and dietary supplement brands seeking verified bioactivity, regulatory compliance, and supply chain resilience. From pilot-scale sampling to multi-ton commercial contracts, we provide consistent DNJ and Mulberroside A standardization, full traceability documentation, and integrated OEM/private-label support.
Our commitment to cGMP, ISO 22000, and FSSC 22000 manufacturing standards—combined with USDA Organic, Halal, Kosher, and Non-GMO certifications—positions us as a strategic raw material partner rather than a conventional commodity vendor. Whether you require customized concentration ratios, specific particle size distributions, or tailored regulatory dossiers, our technical team supports your formulation success from concept through commercialization.
For detailed product specifications, bulk pricing, certification packages, or sample requests, contact our procurement specialists at [email protected]. We welcome the opportunity to support your next-generation metabolic health and antioxidant product lines.
