Overview
Lactitol Monohydrate is a disaccharide alcohol derived from lactose, widely used as a sugar substitute and functional ingredient in food and pharmaceuticals. It offers approximately 50% of the sweetness of sucrose with only 2–2.5 kcal/g, making it ideal for low-calorie and diabetic-friendly products. Its high chemical stability and compatibility with other ingredients enhance its utility in formulations. As a pharmaceutical excipient, lactitol serves as a taste-masking agent, binder, and bulking agent in tablets and syrups. Its non-cariogenic properties also make it a preferred choice in oral care products like sugar-free chewing gum and toothpaste.
Physical and Chemical Properties
Lactitol Monohydrate appears as a white, odorless crystalline powder with a clean, sweet taste. It exhibits high solubility in water (1.4 g/mL at 20°C) and slight solubility in ethanol. The monohydrate form decomposes at around 120°C without a distinct melting point, reflecting its thermal stability in processing. Chemically, lactitol is resistant to Maillard reactions, ensuring product shelf-life stability. Its hygroscopicity is moderate, requiring controlled humidity during storage. The compound’s low glycemic index (GI ≈ 6) and minimal impact on blood glucose levels align with dietary applications for diabetes management.
Main Applications
In the food industry, lactitol is a key ingredient in sugar-free confectionery, baked goods, and dairy products, providing bulk and sweetness without calories. Its humectant properties help retain moisture in products like protein bars and ice cream. Pharmaceutical applications include use as a laxative (osmotic effect) and excipient in chewable tablets due to its pleasant taste profile. Recent innovations explore lactitol’s prebiotic potential in gut health supplements. Industrial uses extend to cosmetic formulations, where it acts as a moisturizer and stabilizer.
Safety and Storage
Lactitol is classified as GRAS by the FDA and approved by the EU (E966). Overconsumption (>20 g/day) may cause bloating or diarrhea due to its slow absorption. Proper storage involves keeping the product in airtight containers away from moisture to prevent caking. Workplace handling requires standard dust-control measures (PPE for eyes/respiratory protection). Disposal should comply with local regulations, though lactitol’s biodegradability minimizes environmental impact. Always refer to SDS for specific hazard and first-aid information.
B2B Procurement Guide
When sourcing lactitol monohydrate, prioritize suppliers offering USP-NF or Ph. Eur. grades for pharmaceutical applications. Request Certificates of Analysis (CoA) for purity (typically ≥98%), residual solvents, and heavy metals. Bulk pricing often applies to orders exceeding 500 kg, with discounts for long-term contracts. Logistics considerations include temperature-controlled transport for tropical climates to prevent moisture absorption. Audit suppliers for GMP compliance and batch traceability. Emerging markets in Asia-Pacific (e.g., China, India) provide cost-competitive options but require rigorous quality verification.
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