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茶叶多糖（TPS）是一种酸性多糖，不同制备原料及制备方法其含量及单糖组成等均有差异；茶多糖络合有多种金属元素，具广泛的生物活性，如降血糖、降血脂、抗凝血及抗血栓、降血压及耐缺氧等。
Tea polysaccharide (TPS) is an acidic polysaccharide, which has different content and monosaccharide composition in different preparation materials and preparation methods. Tea polysaccharide is complexed with various metal elements and has a wide range of biological activity such as hypoglycemic, hypolipidemic , Anticoagulant and antithrombotic, antihypertensive and anti-hypoxia.