L-theanine (commonly known as theanine) is a free amino acid unique to tea, which has a sweet taste and fresh taste, and is a component of the taste of tea. As a new food raw material, L-theanine has physiological active effects such as antioxidant, enhance immunity, promote sleep, relax nervous tension, improve memory, etc., and is widely
used in functional food, health care products, sleep drinks, medicine, daily chemical products, chemical industry and other fieldsL-theanine synthesis methods mainly include chemical synthesis, microbial fermentation, tea extract three ways, of which chemical synthesis has the advantages of low cost and high purity, is the most important production method of L-theanine, accounting for more than 60% of production. L-theanine production technical barriers are low, globally, the number of L-theanine manufacturers is large, mainly distributed in Japan, China and India and other regions, among which the larger L-theanine manufacturers include Taiyo Kagaku, Blue California, Zhejiang Tianrui Chemical, Infré and so on.
According to the "2021-2025 China L-theanine Project Investment Feasibility Study Report" released by Xinsijie Industry Research Center, in 2020, the global L-theanine market size will be close to 3 million yuan. China is the world's largest consumer of L-theanine, accounting for more than 50% of consumption. At the same time, China is also a global L-theanine producer,