Technological conditions optimization for GABA enrichment of germinated brown rice using Pulse light and salt stress method

To obtain the high content of γ- aminobutyric acid of germinated brown rice, germinated brown rice was implemented pulsed light treatment on salt stress.On the basis of single factor experiment, Box- Behnken surface response was used for optimizing technological conditions of germinated brown rice on salt stress accumulated GABA by pulsed light.The experimental results indicated that Sodium glutamate concentration of 2.01 mg / m L, 300 J pulse energy, 11 cm pulse distance, once / s pulse frequency, 31.80 s pulse time and germination time of 27.84 h had the best enrichment. Under optimum conditions, the GABA content in germinated brown rice can be reached181.5mg /100 g.