食品科学

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液相色谱-质谱法快速检测4 种乳源低聚糖

魏京华,陈历俊,赵军英,张 毅,景萌娜,王 品,姜铁民,乔为仓   

  1. 1.大连工业大学生物工程学院,辽宁 大连 116000;
    2.北京三元食品股份有限公司国家母婴乳品健康工程技术研究中心,北京 100163
  • 出版日期:2016-07-25 发布日期:2016-07-26
  • 通讯作者: 姜铁民
  • 基金资助:

    “十二五”国家科技支撑计划项目(2013BAD18B04);北京市科技计划项目(D141100004814002)

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

摘要:

建立一种乳样经简单预处理后采用超高效液相色谱-串联质谱同时检测4 种重要的乳源低聚糖方法。牛乳及人乳经过脱脂、脱蛋白后经amide液相色谱柱用0.1%氨水-乙腈溶液梯度分离,采用质谱检测。2 种唾液酸乳糖标准品的标准曲线在0.78~50.00 mg/L范围内线性良好(R2>0.990),2 种岩藻糖乳糖标准品的标准曲线在1.56~100.00 mg/L范围内线性良好(R2>0.990)。加标回收率在80.00%~100.00%之间,重复性、精密度实验所得相对标准偏差均小于5.00%。

关键词: 超高效液相色谱-串联质谱, 低聚糖, 牛乳, 人乳

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

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