The better condition was confirmed by the orthogonal experiment with the factors: solvent, the molar ratio of monosaccharide and ester reagent, temperature and reaction time.

• 通过对反应溶剂的种类、多糖残基与酯化试剂的摩尔比、反应温度和时间等因素的正交实验,确定了较佳的硫酸酯化反应条件;