食品科学 ›› 2008, Vol. 29 ›› Issue (8): 485-488.

• 分析检测 • 上一篇    下一篇

香蕉根部球茎干粉中还原糖含量的测定

黄广民, 刘秋实   

  1. 海南大学食品学院
  • 出版日期:2008-08-15 发布日期:2011-08-26

Determination of Total Reducing Saccharide in Banana Root Solid Bulb Powder

 HUANG  Guang-Min, LIU  Qiu-Shi   

  1. College of Food Science,Hainan University,Haikou 570228,China
  • Online:2008-08-15 Published:2011-08-26

摘要: 本实验以葡萄糖为标准,以3,5-二硝基水杨酸(DNS)作显色剂,用分光光度法测定香蕉根部球茎干粉中还原糖的含量。结果表明:在波长500nm处有最大吸收峰,测定重现性好,标准回收率高,相对误差小,效果好。

关键词: 香蕉根部球茎, 还原糖, 分光光度法

Abstract: Using glucose as standard and DNS as color developing reagent,the content of total reducing saccharide in banana root solid bulb was determined by spectrophotometry. The results showed that the maximum absorption wavelength of sample extract is 500 nm. The method has the characteristics of good repeatability,high recovery rate and low relative error.

Key words: banana root solid bulb, reducing saccharide, spectrophotometry