食品科学

• 成分分析 • 上一篇    下一篇

亲水色谱柱对氨基酸及其美拉德反应初始中间体的分离

曹长春,梁晶晶,王 蒙,侯 莉,谢建春*,孙宝国   

  1. 北京工商大学 食品质量与安全北京实验室,北京市食品风味化学重点实验室,
    北京市食品添加剂工程技术研究中心,北京 100048
  • 出版日期:2016-01-25 发布日期:2016-01-15
  • 通讯作者: 谢建春
  • 基金资助:

    国家自然科学基金面上项目(31371838;31171755);北京市教委科技发展计划重点项目(KZ20101001011);
    “十二五”国家科技支撑计划项目(2011BAD23B01)

Separation of Amino Acids and Their Initial Maillard Reaction Intermediates by Hydrophilic Interaction Liquid Chromatography

CAO Changchun, LIANG Jingjing, WANG Meng, HOU Li, XIE Jianchun*, SUN Baoguo   

  1. Beijing Laboratory for Food Quality and Safety, Beijing Key Laboratory of Flavor Chemistry, Beijing Engineering and Technology
    Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
  • Online:2016-01-25 Published:2016-01-15
  • Contact: XIE Jianchun

摘要:

采用Xbridge BEH Amide和Atlantis HILIC Silica两亲水色谱柱分离半胱氨酸、甘氨酸及其与木糖形成的美拉德反应初始中间体2-木糖基噻唑烷-4-羧酸、甘氨酸-Amadori和半胱氨酸-Amadori 5 个化合物。通过研究流动相中有机相(乙腈)的比例、缓冲盐浓度、pH值、柱温、流速对容量因子和分离度的影响,分别找到较佳分离条件。在BEH Amide色谱柱上5 个化合物之间的分离度均达到2.28以上,对比可知,采用BEH Amide色谱柱更好。

关键词: 亲水色谱, 半胱氨酸, 2-木糖基噻唑烷-4-羧酸, 甘氨酸, 甘氨酸-Amadori, 半胱氨酸-Amadori, 分离

Abstract:

An Xbridge BEH Amide column and an Atlantis HILIC Silica column, which work on hydrophilic interaction
liquid chromatography (HILIC), were used to separate cysteine, glycine, and their initial Maillard reaction intermediates with
xylose including 2-xylulosylthiazolidine-4-carboxylic acid, glycine-Amadori, and cysteine-Amadori. The effects of the ratio
of the organic phase (CH3CN), the concentration of ammonium formate (the buffer salt), the pH value and flow rate of the
mobile phase, and column temperature on capacity factor and resolution factor were investigated. Then optimum separation
conditions for the Xbridge BEH Amide column and the Atlantis HILIC Silica column were established, respectively. Using
the BEH Amide column, the resolution factors achieved for the five compounds all exceeded 2.28. The results showed that
the BEH Amide column was more suitable for the chromatographic separation.

Key words: hydrophilic interaction liquid chromatography, cysteine, 2-xylulosylthiazolidine-4-carboxylic acid, glycine, glycine-Amadori, cysteine-Amadori, separation

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