食品科学 ›› 2017, Vol. 38 ›› Issue (24): 224-228.doi: 10.7506/spkx1002-6630-201724036

• 安全检测 • 上一篇    下一篇

高效离子色谱法检测婴幼儿配方奶粉中的功能性低聚糖

朱伟,宁啸骏,杜茹芸   

  1. (上海市质量监督检验技术研究院,上海 200233)
  • 出版日期:2017-12-25 发布日期:2017-12-07
  • 基金资助:
    国家质量监督检验检疫总局科技计划项目(2014QK149)

Determination of Functional Oligosaccharides in Infant Formula Milk Powder by High Performance Ion Chromatography

ZHU Wei, NING Xiaojun, DU Ruyun   

  1. (Shanghai Institute of Quality Inspection and Technical Research, Shanghai 200233, China)
  • Online:2017-12-25 Published:2017-12-07

摘要: 建立一种同时测定蔗果三糖、蔗果四糖、蔗果五糖、蔗果六糖、蔗果七糖、棉子糖、水苏糖、毛蕊花糖的高效离子色谱检测技术,采用CarboPac PA20色谱柱分离,以氢氧化钠-乙酸钠为流动相,梯度洗脱,使用脉冲安培检测器进行检测。结果表明,在本实验条件下8 种功能性低聚糖得到了很好分离,回收率为80.0%~103%,相对标准偏差小于3%(n=6)。该方法能快速、准确、可靠地检测婴幼儿配方奶粉中功能性低聚糖的含量。

关键词: 配方奶粉, 功能性低聚糖, 高效离子色谱, 脉冲安培检测器

Abstract: A method was established using high performance ion chromatography and pulsed amperometric detection for simultaneous analysis of 1-kestose (GF2), nystose (GF3), 1F-fructofuranosyl nystose (GF4), GF5, GF6, raffinose, stachyose and verbascose in infant formula milk powder. The chromatographic separation was achieved on a CarboPac PA20 column using a mobile phase composed of a mixture of sodium hydroxide and sodium acetate by gradient elution. Under the conditions optimized in this study, all the analytes were well separated, and the recoveries were 80.0%–103% with a relative standard deviation (RSD) less than 3% (n = 6). The method was rapid, accurate, reliable, and thus suitable for the determination of functional oligosaccharides in infant formula milk powder.

Key words: formula milk powder, functional oligosaccharides, high performance ion chromatography, pulsed amperometric detector

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