Overview
Glyceryl Monopalmitate (GMP) is a monoester derived from glycerol and palmitic acid. It is commonly used as an emulsifier in various industries due to its ability to stabilize mixtures of oil and water. GMP is classified as a food additive (E471 in the EU) and is also utilized in cosmetics and pharmaceutical formulations. GMP is synthesized through the esterification of glycerol with palmitic acid, a process that can be tailored to achieve different purity levels. Its non-toxic and biodegradable nature makes it a preferred choice in applications requiring sustainable and safe ingredients.
Physical and Chemical Properties
Glyceryl Monopalmitate appears as a white to off-white waxy solid with a melting point range of 60-65°C. It is soluble in organic solvents like ethanol but has limited solubility in water. The compound is stable under normal storage conditions but may degrade if exposed to high temperatures or strong oxidizing agents. Key chemical properties include its emulsifying capacity, which stems from its amphiphilic structure—a hydrophilic glycerol moiety and a hydrophobic palmitic acid tail. This structure enables GMP to reduce surface tension between immiscible liquids, making it effective in emulsion-based products.
Main Applications
In the food industry, GMP is widely used as an emulsifier in baked goods, dairy products, and margarine to improve texture and shelf life. It is also employed in whipped toppings and confectionery to enhance stability and mouthfeel. In cosmetics, GMP acts as a emollient and thickening agent in creams, lotions, and makeup products. Its mildness and compatibility with skin make it suitable for sensitive formulations. Additionally, the pharmaceutical industry utilizes GMP in drug delivery systems, where it aids in the solubilization of active ingredients.
Safety and Storage
Glyceryl Monopalmitate is generally recognized as safe (GRAS) by regulatory bodies like the FDA and EFSA when used in approved concentrations. However, prolonged exposure to dust or aerosols should be avoided to prevent respiratory irritation. Proper storage involves keeping GMP in a cool, dry place, ideally below 25°C, and away from direct sunlight. Containers should be tightly sealed to prevent moisture absorption or contamination. In case of spills, use inert absorbents and dispose of according to local regulations.
B2B Procurement Guide
When procuring GMP, B2B buyers should prioritize suppliers who provide certificates of analysis (COA) to verify purity (typically 90-99%) and confirm the CAS number (26657-95-4). Bulk purchases often come with discounts, but minimum order quantities (MOQs) may apply. Consider sourcing from manufacturers with ISO or GMP certifications to ensure quality consistency. Pricing varies based on purity and volume, with technical-grade GMP being more economical than pharmaceutical-grade. For international shipments, confirm compliance with regional regulations such as REACH or FDA standards.
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