More sulfated polysaccharides can be obtained by using sulfating methods through which the biological activities of the Chinese herbal polysaccharides could be improved.

• 硫酸多糖具有抗病毒、抗肿瘤、抗凝血和增强免疫等生物活性,为提高中药多糖的生物活性,可通过硫酸化修饰的方法进行结构改造,获取多糖硫酸酯。