Tea polysaccharide conjugates (TPS conjugates) are receiving worldwide attention in the recent decades, after they were recognized as critical components of coarse tea, and were responsible for their therapeutic effects in patients with diabetes. Existing evidences indicate that TPS conjugates not only benefit human health, but also can be used as carriers for drugs and as films for food packaging, and as emulsifiers. Despite their many practical applications, molecular structures of TPS conjugates are not well worked out yet, making their mechanisms of action difficult to understand. Their structural variations are attributed mainly to the differences in the processing of different tea. This comprehensive review summarises the compositions, structural characteristics, and bioactivities of TPS conjugates from different tea-leaf products, discusses the relationships between their compositions and structures, and the specific functions, and suggests the conjugation among polysaccharides, proteins and polyphenols occurring in tea leaves during processing which is mainly responsible for the alteration in composition and structure of TPS conjugates derived from different kinds of tea.

近几十年来，茶多糖结合物（TPS 结合物）在被认为是粗茶的关键成分并在糖尿病患者中发挥治疗作用后，受到了全世界的关注。现有证据表明，TPS缀合物不仅有益于人类健康，还可用作药物载体和食品包装薄膜，以及作为乳化剂。尽管有许多实际应用，但 TPS 偶联物的分子结构尚未得到很好的研究，这使得它们的作用机制难以理解。它们的结构变化主要归因于不同茶叶加工的差异。这篇综合综述总结了来自不同茶叶产品的 TPS 缀合物的组成、结构特征和生物活性，