γ-aminobutyric acid is a compound widely used in medicine, health care products, feed and other industries, but also belongs to amino acids, in recent years, more and more functional food used. At present, there are many methods to obtain γ-aminobutyric acid, such as chemical synthesis method, plant enrichment method, microbial method and so on.
In the chemical synthesis method, there are a variety of raw materials can be used to prepare γ-aminobutyric acid, potassium phthalimide and 4-chloroprene can be used as raw materials to prepare γ-aminobutyric acid, they react in 180℃ environment, the product using concentrated sulfuric acid for hydrolysis, you can get γ-aminobutyric acid. Butyric acid and ammonia can also be used to prepare γ-aminobutyric acid, γ-aminobutyric acid can be obtained by light reaction of them under γrays. γ-aminobutyric acid is obtained by hydrolysis of pyrrolidone in ammonium bicarbonate and calcium hydroxide.
In addition, plant enrichment method, microbial fermentation method can also be used to prepare γ-aminobutyric acid, we choose to prepare γ-aminobutyric acid method, should be cost, controllability, raw material acquisition, yield and other aspects of consideration to select the appropriate method.