食品科学 ›› 2005, Vol. 26 ›› Issue (4): 212-214.

• 分析检测 • 上一篇    下一篇

啤酒中游离酚酸的HPLC-ECD测定

 曹炜, 索志荣, 陈卫军, 宋纪蓉, 郑建斌   

  1. 西北大学食品科学与工程系; 西北大学电分析科学研究所
  • 出版日期:2005-04-15 发布日期:2011-09-19

Analysis on Six Free Phenolic Acids in Beer by HPLC with Electrochemical Detection

 CAO  Wei, SUO  Zhi-Rong, CHEN  Wei-Jun, SONG  Ji-Rong, ZHENG  Jian-Bin   

  1. 1.Department of Food Science and Technology, Northwest University; 2.Institute of Electroanalytical Chemistry, Northwest University
  • Online:2005-04-15 Published:2011-09-19

摘要: 本文采用高效液相色谱-电化学检测方法,测定了5种啤酒中的没食子酸、原儿茶酸、咖啡酸、丁香酸、p-香豆酸和阿魏酸等6种游离酚酸的含量。在色谱柱为Hypersil ODS柱(250mm×4.0mm,5.0μm),流动相为甲醇-2%醋酸,梯度洗脱,流速为0.8ml/min,检测电压为700mV,柱温为30℃的条件下,啤酒中的6种酚酸可以得到很好的分离。该方法是一种快速简便、灵敏准确的分析方法,可以为啤酒的质量控制提供科学依据。

关键词: 啤酒, 游离酚酸, 液相色谱, 电化学检测

Abstract: In a previous study a HPLC-ECD method for determining simultaneously of six kinds of phenolic acids( protocatechuic acid, p-coumaric acid, syingic acid, gallic acid, caffeic acid and ferulic acid) in five different types of beer was established. Six kinds of phenolic acids were separated satisfactorily when RP-HPLC with Electrochemical Detection(HPLC- ECD) was used. The phenolic acids were analyzed on hypersil ODS column(250mm×4.0mm,5.0μm) and a gradient elution program was performed with CH3OH-2% HAc as a flow phase. The flow rate was 0.8ml/min. The detection was done at 700mV at column temperature 30℃. A rapid, sensitive and accurate method for the determination of six kinds of phenolic acids was founded. This study might provide a scientific basis for the quality control of beer.

Key words: beer, free phenolic acids, HPLC, electrochemical detection