应用电感偶合等离子体质谱(ICP-MS)、气相色谱(GC)、氨基酸自动分析仪及动物模型, 研究了喷施稀土对茶叶中稀土结合糖蛋白(REE-TGP)组成及活性的影响. 成品茶中有稀土结合糖蛋白;稀土对单糖种类及组成没有明显影响, 但REE-TGP中羟脯氨酸(Hypro)及丝氨酸(Ser)含量增加明显, 而谷氨酸(Glu)含量则比对照区的低. 稀土处理区茶叶制得的REE-TGP中La含量增加了193%;REE-TGP具有明显的降血糖效果和增强免疫作用等活性.
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