global demand for l-theanine continues to grow, with my country being the largest producer
l-theanine, naturally present in tea, is a unique amino acid of tea. its content in tea varies depending on the variety of tea, and generally accounts for 1%-2% of the weight of dry tea. l-theanine, with the chemical formula c7h14n2o3, appears as white crystalline powder, odorless, sweet and sour, easily soluble in water, and insoluble…
