洋葱块茎中还原糖测定方法对比研究

摘要

本文采用DNS比色法、还原糖测定仪两种方法对洋葱块茎中的还原糖含量进行测定.结果表明,还原糖测定仪法的标准偏差和变异系数均小于DNS法,其回收率为101.7％.%We employed DNS reagent and reducing sugar analyzer methods to determine the content of reducing sugar in onion. The results show that the standard deviation and variation coefficient of reducing sugar analyzer method are less than those of DNS reagent method. The recovery rate of reducing sugar analyzer method is 101.7%.