Overview
Ferulic acid is a naturally occurring phenolic compound found in the cell walls of plants such as rice bran, wheat, and oats. It is a derivative of cinnamic acid and is classified as a hydroxycinnamic acid. The compound is renowned for its antioxidant properties, which make it valuable in various industries, including food, cosmetics, and pharmaceuticals. In nature, ferulic acid plays a role in plant defense mechanisms and lignin biosynthesis. Its ability to scavenge free radicals and absorb UV light has led to its widespread use as a stabilizing agent in food products and as an active ingredient in anti-aging skincare formulations.
Physical and Chemical Properties
Ferulic acid appears as a white to light yellow crystalline powder with a characteristic mild odor. It has a molecular weight of 194.18 g/mol and a density of 1.316 g/cm³. The compound melts at 168-172°C and boils at 372.6°C under standard pressure. Its solubility profile includes good solubility in organic solvents like ethanol and methanol but limited solubility in water. Ferulic acid is stable under normal storage conditions but may degrade when exposed to prolonged light or high temperatures. Its chemical structure includes a phenolic hydroxyl group and a methoxy group, contributing to its antioxidant activity.
Main Applications
In the food industry, ferulic acid is used as a natural preservative due to its ability to inhibit lipid oxidation and microbial growth. It is also employed as a flavor precursor in fermented products. The cosmetic industry values ferulic acid for its skin-protective effects, often combining it with vitamins C and E to enhance stability and efficacy in anti-aging serums. Pharmaceutical applications include its use as an anti-inflammatory agent and in formulations aimed at reducing oxidative stress. Additionally, ferulic acid serves as a precursor in the synthesis of other bioactive compounds, such as vanillin and coniferyl alcohol.
Safety and Storage
Ferulic acid is generally recognized as safe (GRAS) for use in food and cosmetics. However, direct contact with the powder may cause mild skin or eye irritation, necessitating the use of gloves and goggles during handling. Proper storage involves keeping the compound in a tightly sealed container in a cool, dry place away from direct sunlight to prevent degradation. Industrial users should ensure adequate ventilation in processing areas to avoid inhalation of dust. Spills should be cleaned promptly with appropriate absorbent materials. Regulatory compliance, including REACH and FDA guidelines, should be verified for specific applications.
B2B Procurement Guide
When procuring ferulic acid, prioritize suppliers with certifications such as ISO 9001, GMP, or organic production standards. Key specifications to verify include purity (typically 98-99.5%), heavy metal content (<10 ppm), and residual solvents. Batch-to-batch consistency is critical for industrial applications, especially in pharmaceuticals and cosmetics. Pricing varies based on purity, packaging, and order volume, with bulk purchases often attracting discounts. Lead times and logistics options (e.g., temperature-controlled shipping for large orders) should be clarified. Sample testing is recommended to confirm suitability for the intended application before committing to large-scale procurement.
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