L-theanine is a tea specific amino acid, C7H14N2O3, that makes up 1% to 2% of the weight of dried tea. Theanine was separated from green tea for the first time in 1950. It is the characteristic amino acid of tea, and it is also one of the fla...
Henan New TuoYang International Trading Co., Ltd is a wholly-owned subsidiary of New TuoYang Bio-engineering Co., Ltd, a state-owned holding enterprise under Henan Investment Group. We have profound production and procurement experience in food ad...
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