摘要
采用多聚磷酸法对党参[Codonopsis pilosula(Franch.)Nannf.]多糖进行磷酸酯化反应,利用均匀设计试验U8(44)对党参多糖磷酸酯化合成工艺进行优化。采用钼酸铵法测定磷酸根的含量,确定了党参多糖磷酸酯化反应体系的最佳反应条件为温度87℃、时间6.3 h、每20 mL多糖溶液加入20 mL多聚磷酸钠溶液pH 10,在此体系下,磷酸根含量为5.26%。
Phosphate esterification reaction of Codonopsis pilosula(Franch.)Nannf. polysaccharide was conducted by polyphosphoric acid method, uniform-design method U8(44) was applied to optimize the synthesis process. Content of phosphate radical was detected by ammonium molybdate method. The optimized reaction conditions for phosphate esterification synthesis system of C. pilosula polysaccharide were, reaction temperature, 87 ℃; reaction time, 6.3 h; adding 20 mL sodium polyphosphate solution in every 20 mL polysaccharide solution; and pH 10. The content of phosphate radical under these conditions was5.26%.
出处
《湖北农业科学》
北大核心
2013年第16期3936-3938,共3页
Hubei Agricultural Sciences
基金
贵州省科技厅2007年科研攻关计划项目([黔科合S字](2007)1043)
