Ferulic acid is a kind of phenolic acid is common in the plant kingdom, rarely exist in pre-columri prior in plants, main with oligosaccharides, polyamine, lipid and polysaccharides form combination patterns. Chemical name of ferulic acid is 3 methoxy 4 hydroxy cinnamic acid, cinnamic acid is (also called cinnamic acid, 3 phenyl acrylic acid, 2) molecular structure of one of the derivatives. It has many health functions, such as scavenging free radicals, antithrombotic, antibacterial, anti-inflammatory, inhibiting tumor, prevention and treatment of high blood pressure, heart disease and enhance the vitality of the sperm, etc. Low toxicity of ferulic acid and easy for the body metabolism, its utility is more and more widely. Ferulic acid in the food industry is mainly used for the preparation of natural vanillin, antioxidants, preservatives, crosslinking agent and functional promoter, ferulic acid is obtained by chemical synthesis and the extraction method.

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Ferulic acid not only can quenching free radicals, but also can regulate the human body physiology, enzyme to produce free radicals, promote the generation of free radicals of the enzyme. Kayahara, etc and Kawabata, ferulic acid can greatly increase the GSH sulfur enzyme and quinone reductase activity, inhibit tyrosinase activity, and can combine with membrane phosphatidyl ethanolamine, protective grease from the invasion of free radicals. Ferulic acid for the common cold virus, respiratory syncytial virus (RSV) and the AIDS virus has significant inhibitory effect. Ferulic acid on fine bacteria N - acetyl transferase have stronger inhibition, this may be the main reason for its antimicrobial effect, has now found that ferulic acid can inhibit the song negroponte hayes bacteria, klebsiella pneumoniae, enterobacter, escherichia coli, bacillus citrate, pathogenic bacteria such as pseudomonas aeruginosa and 11 kinds of food corruption caused by microbial breeding.