Overview
D-Mannose is a simple sugar that is closely related to glucose, differing only in the orientation of a single hydroxyl group. It is naturally found in small amounts in various fruits, including cranberries, peaches, and apples. Due to its unique metabolic properties, D-Mannose is not significantly metabolized by the human body, making it a popular ingredient in dietary supplements aimed at supporting urinary tract health. In industrial applications, D-Mannose is synthesized from cornstarch or other plant-based sources. Its mild sweetness and low caloric content make it suitable for use in food products and health supplements. The compound has gained attention for its ability to prevent certain bacterial infections, particularly those caused by E. coli, by interfering with bacterial adhesion to the urinary tract lining.
Physical and Chemical Properties
D-Mannose is a white, crystalline powder with a sweet taste. It is highly soluble in water, which makes it easy to incorporate into liquid formulations. The compound is stable under normal storage conditions but should be protected from moisture to prevent clumping. Its melting point ranges between 132-135 °C, and it has a density of 1.539 g/cm³. Chemically, D-Mannose is a hexose sugar, meaning it has six carbon atoms. It is a reducing sugar, capable of participating in Maillard reactions, which can affect its stability in certain formulations. The compound is optically active, with a specific rotation of +14.2° in water. Its solubility in ethanol is limited, which can be useful for purification processes.
Main Applications
The primary use of D-Mannose is in the health and wellness sector, particularly in products designed to support urinary tract health. It is commonly found in dietary supplements, often combined with cranberry extract or probiotics. The sugar works by binding to E. coli bacteria, preventing them from adhering to the urinary tract walls, which helps flush them out of the body. In the food industry, D-Mannose is used as a low-calorie sweetener and a functional ingredient. It is also employed in pharmaceuticals as an excipient and in diagnostic reagents. Additionally, D-Mannose is being researched for its potential benefits in managing certain metabolic disorders and as a component in wound healing formulations.
Safety and Storage
D-Mannose is generally considered safe for consumption, with no known severe side effects. However, excessive intake may lead to mild gastrointestinal issues such as bloating or diarrhea. It is important to follow recommended dosages, especially in supplement form. The compound is non-toxic and does not pose significant risks under normal handling conditions. For storage, D-Mannose should be kept in a cool, dry place, away from direct sunlight and moisture. Properly sealed containers are essential to maintain its stability and prevent degradation. Industrial users should ensure that storage areas are well-ventilated and free from contaminants to preserve the compound's purity.
B2B Procurement Guide
When procuring D-Mannose, it is crucial to verify the supplier's credentials and request certificates of analysis (COA) to ensure product quality and purity. Buyers should specify whether they require food-grade or pharmaceutical-grade D-Mannose, as the standards differ. The price can vary based on purity levels, with higher grades commanding a premium. Bulk purchases often come with discounts, but it is advisable to start with smaller quantities to assess quality. Logistics considerations include ensuring that the product is transported in moisture-proof packaging to prevent clumping. Establishing long-term relationships with reputable suppliers can help secure consistent quality and favorable pricing.
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