【摘要】 L-茶氨酸是茶叶中一种特殊的游离氨基酸，也是茶叶主要风味物质之一，因其具有放松心情、缓解疲劳、抗肿瘤、降血压等保健功能，被食品和医疗保健领域广泛关注。为了研究茶氨酸合成途径及方法，本文总结了目前L-茶氨酸合成的主要的途径，根据来源分为植物源合成和微生物源合成，根据合成方式分为生物酶法催化合成和化学方法合成，并分析了各个合成方法的优缺点，同时总结了L-茶氨酸在食品和医疗领域的应用，提出了高效合成茶氨酸未来的研究方向，以期为L-茶氨酸合成生产和应用提供参考。更多还原

【Abstract】 L-theanine is a special free amino acid in tea leaves and one of the main flavor substances in tea.Due to its health benefits such as relaxation, fatigue relief, anti-tumor effects, and blood pressure reduction, it has received widespread attention in the food and healthcare industries. In order to study the synthesis pathway and methods of L-theanine, this paper summarized the current main pathways for L-theanine synthesis, which were divided into plant-derived synthesis and microbial-derived synthesis according to their sources; and bioenzymatic catalysis and chemical synthesis according to their synthesis methods. The advantages and disadvantages of each synthesis method were analyzed. Meanwhile, the applications of L-theanine in food and medical fields were summarized, and future research directions for efficient theanine synthesis were proposed,aiming to provide a reference for the production and application of L-theanine.更多还原