The role of theanine

Theanine (L-Theanine) is a unique free amino acid in tea, theanine γ- glutamic acid diethylamide, sweet. Theanine because the tea varieties, location and change. Theanine in dry tea accounts for 1% to 2% by weight. Theanine, glutamic acid, the active substance in the brain similar to glutamine in the chemical structure, the main component of tea 叶中生 moist sweet. New tea theanine content of about 1 to about 2%, its content decreases with the fermentation process.