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Gamma amino butyric acid (GABA)
Catalytically converted from glutamic acid through glutamate decarboxylase, GABA, a kind of natural non-protein amino acid, is an important neurotransmitter of the central nervous system for mammals. GABA can be found in our eye retinas and encephalon with high concentration. It also rarely exists in plant seeds germ, vegetables and fruits. As the glutamate decarboxylase in the rice embryo is more active, it is quite suitable for producing functional food rich in gamma amino butyric acid. Study has found that the rice embryo rich in GABA can suppress the increase of the high blood pressure, which sterling GABA and soybeans, wheat, tomatoes and bean sprouts rich in GABA can’t do. Apart from the effect of GABA, the physiologically activity of the rice embryo rich in GABA results from the combination with other ingredients in the rice embryo. Therefore, the GABA extracted from the rice embryo will sure become the main raw material of medicines and functional food.