Production method of germinated brown rice rich in gamma-aminobutyric acid

The invention relates to the technical field of food processing and discloses a production method of brown rice rich in gamma-aminobutyric acid, the production method comprises the following steps: placing brown rice on water-containing perlite, germinating the brown rice under a constant-temperature and constant-humidity condition, and when buds grow to 0.5-1 mm, stopping germinating and drying the buds to obtain the brown rice rich in the gamma-aminobutyric acid. The perlite has relatively high water holding capacity and permeability, the brown rice can be controlled to slowly absorb water to keep in the swelling stage and promote enzyme activation, so that the brown rice is in a sprouting preparation state, but radicles can be prevented from extending out, the occurrence of burst-back brown rice is inhibited to the maximum extent, and the quality of the germinated brown rice is improved. Meanwhile, the water-containing perlite is introduced, so that the germination of the brown ricecan be promoted, and the