L-theanine is naturally present in green tea and is a unique free amino acid in tea.
Pure L-theanine powder is a systhesis substance produce following the method below.
Pyrrolidone carboxylic acid is made by high-pressure heating of L-glutamic acid, added with anhydrous monoethylamine, and made by high-pressure heating.
L-theanine powder is white crystalline . Odorless, with a slightly sweet special taste, with a taste threshold of 0.15%. The decomposition temperature is 214～215℃. It is soluble in water, insoluble in ethanol and ether.
L-theanine Mainly used for beverage to improve flavor especially fragrance component of green tea. It also can inhibit the bitterness and spiciness of other foodsThe amount is not specified. For example, cocoa beverages and barley tea have a unique bitter or spicy taste, adding sweeteners will have an unpleasant taste, such as replacing the sweetener with 0.1% L-theanine, the results show that the beverage flavor is greatly improved
Strengthens immunity, lowers blood pressure, improves the brain, promotes the brain's learning and memory functions, and effectively enhances the liver's detoxification function.
Early in 1985, the U.S. Food and Drug Administration (FDA) recognized L-theanine powder and confirmed that the synthetic theanine is a generally recognized safe substance (GRAS), and there is no restriction on the amount during use. In Japan, there is no restriction on the intake of the safe L-theanine.
*Sensitive to air and humidity, should be sealed and stored in a ventilated and dry place
*After the container is opened, it should be resealed for storage and stored upright to prevent leakage from dumping.
*Store and handle under inert gas environment.