Overview
Bio-food grade caffeic acid is a hydroxycinnamic acid derivative found naturally in plants such as coffee beans, fruits, and vegetables. It is valued in the food, pharmaceutical, and cosmetic industries for its potent antioxidant and anti-inflammatory properties. As a food additive, it helps extend shelf life and enhance nutritional profiles. Caffeic acid is synthesized through the shikimate pathway in plants and can be extracted for commercial use. Its bio-food grade variant meets stringent safety standards, making it suitable for human consumption and topical applications.
Physical and Chemical Properties
Caffeic acid appears as a yellow to light brown crystalline powder with a molecular weight of 180.16 g/mol. It has a melting point of 223-225°C and is soluble in polar solvents like ethanol, methanol, and hot water. Its density is approximately 1.478 g/cm³. The compound exhibits strong UV absorption, making it useful in sunscreens and protective formulations. Its chemical structure includes phenolic hydroxyl groups, which contribute to its antioxidant activity by scavenging free radicals and inhibiting oxidative stress.
Main Applications
In the food industry, caffeic acid is used as a natural preservative and flavor enhancer, particularly in baked goods, beverages, and dietary supplements. Its antioxidant properties help prevent lipid oxidation and spoilage. Pharmaceutical applications include its use in anti-inflammatory and antimicrobial formulations. Research suggests potential benefits in managing metabolic disorders and cancer prevention. Cosmetic formulations leverage caffeic acid for its skin-protective effects, often found in anti-aging creams and serums.
Safety and Storage
Bio-food grade caffeic acid is generally recognized as safe (GRAS) for consumption and topical use. However, prolonged exposure to high concentrations may cause skin or eye irritation. Proper storage in a cool, dry environment is essential to maintain stability. Handling precautions include wearing gloves and protective eyewear to avoid direct contact. Suppliers should provide material safety data sheets (MSDS) detailing first-aid measures and disposal guidelines.
B2B Procurement Guide
When sourcing bio-food grade caffeic acid, prioritize suppliers with certifications such as ISO, GMP, or organic compliance. Key specifications to verify include purity (≥98%), CAS number (331-39-5), and absence of heavy metals or solvents. Bulk pricing varies based on quantity and purity, with discounts often available for long-term contracts. Sample testing is recommended to ensure consistency in quality and performance. Reliable suppliers typically offer technical support and documentation for regulatory compliance.
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