向日葵茎髓多糖铁配合物的制备工艺

Synthesis of Helianthus annuuss Polysaccharide-Fe (Ⅲ) Complex

目的:优化向日葵茎髓多糖铁的制备工艺。方法:以向日葵茎髓多糖为原料、向日葵茎髓多糖铁产率和铁含量为评价指标,采用L9(34)正交试验设计,考察反应温度、反应pH值、反应时间及多糖与柠檬酸三钠的质量配比对向日葵茎髓多糖铁产率和铁含量的影响。结果:向日葵茎髓多糖铁的最佳制备工艺条件为:反应温度80℃、pH9、反应时间3h、多糖与柠檬酸三钠的质量配比3:1,向日葵茎髓多糖铁产率达1.26g/g,向日葵茎髓多糖铁中铁含量为22.82%。结论:所得向日葵茎髓多糖铁最佳制备工艺方法简单、可靠、适合工业生产。

Objective： To optimize the synthesis of Helianthus annuuss polysaccharide-Fe（Ⅲ） complex.Methods： The effects of reaction temperature,pH,reaction time and polysaccharide-trisodium citrate ratio on the yield and Fe content of polysaccharide-Fe（Ⅲ） complex were investigated using one-factor-at-a-time method and an L9（34） orthogonal array design.Results： The optimal synthesis conditions were determined as 3：1 of polysaccharide/trisodium citrate mass ratio and pH 9 for a reaction duration of 3 h at 80 ℃.Under these conditions,the yield of Helianthus annuuss polysaccharide-Fe（Ⅲ） complex was 1.26 g/g.and its Fe content 22.82%.Conclusion： This optimal synthesis process is simple,reliable and suitable for industrial production.