Strain for producing glutamic acid decarboxylase and method for producing gamma-aminobutyric acid by utilizing strain

The invention relates to a strain for producing glutamic acid decarboxylase and a method for producing gamma-aminobutyric acid by utilizing the strain, belonging to the field of food biotechnology. The invention discloses lactobacillus plantarum SK30.001. The lactobacillus plantarum SK30.001 is screened from pickled vegetables and is preserved in China Center for Type Culture Collection (CCTCC), and the preserve number is CCTCC NO: M2013250. The invention further provides a method for producing the gamma-aminobutyric acid through fermentation by utilizing the strain. The method comprises the following steps of: (a) culturing the strain in a fermentation culture medium, so as to obtain lactobacillus plantarum thallus; (b) converting sodium glutamate by utilizing the lactobacillus plantarum thallus to generate the gamma-aminobutyric acid; and (c) carrying out separation and purification of the gamma-aminobutyric acid. The gamma-aminobutyric acid produced by utilizing method is safe and reliable, is a functional product with a good market potential and is widely applied to industries of foods, cosmetics, medicines and the like. According to the strain for producing the glutamic acid decarboxylase and the method for producing the gamma-aminobutyric acid by utilizing the strain, the gamma-aminobutyric acid can be efficiently produced, the mass production is realized easily, and a novel method for industrial preparation of the gamma-aminobutyric acid is provided.