食品科学 ›› 2008, Vol. 29 ›› Issue (6): 324-326.

• 分析检测 • 上一篇    下一篇

高效液相色谱法测定乳酸菌中的γ-氨基丁酸

 葛菁萍, 蔡柏岩, 宋明明, 凌宏志, 宋刚, 平文祥   

  1. 微生物黑龙江省高校重点实验室 黑龙江大学生命科学学院; 微生物黑龙江省高校重点实验室; 黑龙江大学生命科学学院; 黑龙江哈尔滨150080;
  • 出版日期:2008-06-15 发布日期:2011-08-26

Determination of γ-Amino Butyric Acid in Lactobacillus brevis Fermentation Liquid by HPLC

 GE  Jing-Ping, CAI  Bai-Yan, SONG  Ming-Ming, LING  Hong-Zhi, SONG  Gang, PING  Wen-Xiang   

  1. Key Laboratory of Microbiology, College of Life Science, Heilongjiang University, Harbin 150080, China
  • Online:2008-06-15 Published:2011-08-26

摘要: 建立了邻苯二甲醛柱前衍生高效液相色谱法。定量测定短乳杆菌中γ-氨基丁酸的方法,为进一步研究乳酸菌中的γ-氨基丁酸奠定了方法基础。在对浓缩发酵上清液柱前衍生后,利用Nova2pakC18色谱柱,以50mmol/L的乙酸钠(pH6.8)-甲醇-四氢呋喃(A相,82:17:1;B相,22:77:1,V/V)为流动相进行梯度洗脱,可以检测到痕量γ-氨基丁酸(2.2mg/100g)。精确度和回收率实验表明,该方法可以用于痕量γ-氨基丁酸的检测。

关键词: 高效液相色谱法, 邻苯二甲醛, &gamma, -氨基丁酸, 乳酸菌

Abstract: High performance liquid chromatography with o-phthaldialdelhyde pre-colomn derivatization was used to determine the content of γ-amino butyric acid (GABA) in Lactobacillus brevis. After pre-colomn derivatization of concentrated fermentation supernatant, separation of GABA was carried out on Nova2pakC18 column with the gradient elution of 50 mmol/L acetate sodium (pH 6.8), methanol and THF (solution A 82:17:1; solution B 22:77:1, V/V). The results of accuracy and recovery rate showed that this menthod can be used to detect trace content of GABA.

Key words: HPLC, o-phthaldialdelhyde, GABA, lactid acid bacteria