Dear Editor,Theanine(N-ethyl-γ-L-glutamine)is a characteristic amino acid primarily found in tea leaves(Camellia sinensis).It is derived from pyruvate through three enzymatic steps involving alanine aminotransferase(...Dear Editor,Theanine(N-ethyl-γ-L-glutamine)is a characteristic amino acid primarily found in tea leaves(Camellia sinensis).It is derived from pyruvate through three enzymatic steps involving alanine aminotransferase(AlaAT),alanine decarboxylase(AlaDC),and theanine synthetase(TS)(She et al.,2022;Luo and He,2025).Theanine has attracted widespread attention due to its tasteenhancing properties and potential health benefits,including relaxation and cognitive enhancement(Li et al.,2022),however,its limited natural production,coupled with increasing demand,has seriously restricted its broad application.展开更多
基金supported by the Key Areas Research Projects of Guangdong Province(2022B0202060002)the Incubation Program for the Science and Technology Development of Chinese Medicine Guangdong Laboratory(HQL2024PZ028)+4 种基金the Guangdong Basic and Applied Basic Research Foundation(2024A1515012120)the Guangzhou Basic and Applied Basic Research Foundation(2023A04J00359)the Special Foundation for Introduction of Scientific Talents of GDAAS(R2021YJ-YB3015,R2022YJ-YB1003,R2022PY-QY001,and R2021YJ-XD001)the Elite Rice Plan of GDRRI(2022YG01,2022YG02,and 2025YG02)the Guangdong Key Laboratory of Rice Science and Technology(2023B1212060042).
文摘Dear Editor,Theanine(N-ethyl-γ-L-glutamine)is a characteristic amino acid primarily found in tea leaves(Camellia sinensis).It is derived from pyruvate through three enzymatic steps involving alanine aminotransferase(AlaAT),alanine decarboxylase(AlaDC),and theanine synthetase(TS)(She et al.,2022;Luo and He,2025).Theanine has attracted widespread attention due to its tasteenhancing properties and potential health benefits,including relaxation and cognitive enhancement(Li et al.,2022),however,its limited natural production,coupled with increasing demand,has seriously restricted its broad application.
