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Rapid and Simultaneous Detection of 4 Milk Oligosaccharides Using LC-MS

WEI Jinghua, CHEN Lijun, ZHAO Junying, ZHANG Yi, JING Mengna, WANG Pin, JIANG Tiemin, QIAO Weicang   

  1. 1. School of Biological Engineering, Dalian Polytechnic University, Liaoning 116000, China;
    2. National Maternal and Infant Health Dairy Researching Center of Beijing Sanyuan Foods Co. Ltd., Beijing 100163, China
  • Online:2016-07-25 Published:2016-07-26
  • Contact: JIANG Tiemin

Abstract:

An ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was used to
rapidly and simultaneously detect 4 oligosaccharides in bovine milk and human milk. Samples were defatted, deproteined,
resolved on an ACQUITY BEH amide column using gradient elution with 0.1% ammonia water/acetonitrile as mobile
phase, detected by mass spectrometric specific ion monitoring and quantified. The standard curves of 2 fucosyllactose
oligosaccharides were linear within the range from 0.78 to 50.00 mg/L with R2 > 0.990. The standard curves of 2
sialyllactose were linear within the range from 1.56 to 100.00 mg/L with R2 > 0.990. The recoveries of spiked samples
ranged from 80.00% to 100.00%. The relative standard deviation (RSD) of repeatability and precision was less than 5.00%.

Key words: ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), oligosaccharides, bovine milk, human milk

CLC Number: