GABA tea

Common card · No. 433933

GABA tea (other names: Gabaron, Jia Wu Long cha, Jing Bai Long cha, 佳叶龙茶) is tea that has undergone a special processing which leads to high accumulation of GABA (the chief inhibitory neurotransmitter in the central nervous system) in the tea leaves. This process involves storing the leaves in an oxygen-free nitrogen gas chamber. This new way of processing tea was created in Japan by the former MAFF National Research Institute of Tea (currently the National Institute of Vegetables and Tea Science) in 1984. Dr. Tsushida and his collaborators at the MAFF began developing GABA-rich tea in 1984 and successfully produced a new type tea in which almost all glutamic acid has been converted to GABA without changing the content of catechin or caffeine. They found that a large amount of GABA accumulated in green tea through six to ten hours in an anaerobic (oxygen-free) chamber filled with nitrogen. They examined further the GABA content of green, oolong and black tea made under such anaerobic conditions...

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