Overview
Glyceryl Citrate is a versatile chemical compound derived from glycerol and citric acid. It is widely used as an emulsifier and stabilizer in various industries, including food, pharmaceuticals, and cosmetics. The compound is valued for its ability to improve texture, extend shelf life, and enhance product stability without significantly altering taste or appearance. Due to its mild acidity and emulsifying properties, Glyceryl Citrate is often preferred over harsher chemical additives. It is particularly useful in dairy products, baked goods, and personal care formulations where gentle yet effective stabilization is required.
Physical and Chemical Properties
Glyceryl Citrate typically appears as a white to pale yellow powder or waxy solid with a mild, slightly acidic odor. It has a molecular weight of 250.20 g/mol and a density of approximately 1.3 g/cm³. The compound melts between 45-55°C and decomposes before reaching a boiling point. Solubility is one of its key characteristics: Glyceryl Citrate dissolves readily in water and ethanol, making it suitable for aqueous formulations. It also exhibits partial solubility in oils, which enhances its emulsifying capabilities. The compound is stable under normal storage conditions but should be protected from moisture and extreme temperatures to prevent degradation.
Main Applications
In the food industry, Glyceryl Citrate serves as a multifunctional additive. It acts as an emulsifier in dairy products like ice cream and yogurt, preventing separation and improving mouthfeel. Bakers use it to enhance dough elasticity and extend the freshness of bread and pastries. The compound’s mild acidity also makes it a suitable pH regulator in beverages and canned foods. Beyond food, Glyceryl Citrate finds applications in pharmaceuticals as a tablet binder and in cosmetics as a stabilizer for creams and lotions. Its non-toxic and biodegradable nature aligns with the growing demand for sustainable and skin-friendly ingredients in personal care products.
Safety and Storage
Glyceryl Citrate is generally recognized as safe (GRAS) for use in food by regulatory agencies, though adherence to recommended dosage limits is essential. While it poses minimal toxicity, prolonged exposure to dust during handling may irritate the respiratory tract, necessitating proper ventilation or protective equipment. Storage conditions are straightforward: keep the compound in a cool, dry place away from direct sunlight to maintain its stability. Containers should be tightly sealed to prevent moisture absorption, which could lead to clumping or reduced efficacy. For large-scale industrial use, bulk storage in moisture-resistant packaging is advisable.
B2B Procurement Guide
When sourcing Glyceryl Citrate, prioritize suppliers who provide certificates of analysis (CoA) to verify purity and compliance with industry standards (e.g., food-grade or pharmaceutical-grade). Key specifications to check include moisture content, heavy metal limits, and residual solvents. Price varies based on purity and order volume, with bulk purchases typically offering cost advantages. For international procurement, confirm that the supplier meets regional regulatory requirements (e.g., FDA, EU). Sampling before large orders is recommended to assess quality consistency. Additionally, consider suppliers with sustainable practices, as eco-friendly production is increasingly important to end consumers.
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