聚葡萄糖中还原糖含量测定方法研究

Research of Metheds for Determination of Reducing Sugar Content in Polydextrose

聚葡萄糖是一种水溶性的膳食纤维,聚葡萄糖中还原糖含量对产品质量有很大影响.采用直接滴定法及高锰酸钾滴定法,对聚葡萄糖样品中还原糖的含量进行测定,通过对比实验发现直接滴定法比高锰酸钾滴定法具有操作简便、快速、检出限低等优势,因此直接滴定法更适于快速测定聚葡萄糖中还原糖的含量.

Polydextrose is a kind of water-soluble dietary fibers. The reducing sugar content in polydextrose has a great influence on the quality of the products. The direct titration and the permanganate titra- tion were used to determine the reducing sugar content in polydextrose. The result showed that the direct titration was more suitable than the permanganate titration for rapid determine the reducing sugar content in polydextrose.