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首页> 外文期刊>Journal of the Institute of Brewing >Determination of Furfural in Beer by High- Performance Liquid Chromatography with Solid-Phase Extraction
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Determination of Furfural in Beer by High- Performance Liquid Chromatography with Solid-Phase Extraction

机译：固相萃取-高效液相色谱法测定啤酒中的糠醛

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摘要

Furfural is a sensitive indicator of beer staling. A new solid-phase extraction (SPE) column PEP-SPE (Polar-Enhanced Polymer, 500 mg/6 mL) was used to develop a method for extraction of furfural from beer. The PEP-SPE column retains furfural with higher selectivity than the commonly used C_(18)-SPE column. Satisfactory precisions were obtained with %RSD (n = 6) less than 2.2% for peak areas. Recovery rates were in the range of 99.7-100.1% due to the simple treatment and good resolution. The detection limit was 5 μg/L. Furfural concentration ranged from 10 to 32 μg/L in twelve fresh beer samples. A noticeable increase in furfural content was found after beer samples were kept at 35℃ for seven days. The calculated correlation coefficient between taste panel scores for beer freshness and the furfural content of aged beer samples was -0.65, which showed a good inverse correlation between freshness marks and furfural content.
机译：糠醛是啤酒陈旧的敏感指标。一种新的固相萃取（SPE）柱PEP-SPE（极性增强聚合物，500 mg / 6 mL）用于开发从啤酒中萃取糠醛的方法。 PEP-SPE色谱柱保留糠醛的选择性要高于常用的C_（18）-SPE色谱柱。峰面积的％RSD（n = 6）小于2.2％，可获得令人满意的精度。由于简单的处理和良好的分离度，回收率在99.7-100.1％的范围内。检出限为5μg/ L。在十二个新鲜啤酒样品中，糠醛浓度范围为10至32μg/ L。将啤酒样品在35℃下放置7天后，糠醛含量明显增加。啤酒新鲜度的味觉评分与陈酿啤酒样品的糠醛含量之间的计算相关系数为-0.65，这表明新鲜度标记与糠醛含量之间具有良好的反相关性。

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  • 来源
    《Journal of the Institute of Brewing》 |2009年第3期|226-231|共6页
  • 作者

    Mei Li; Zhaoxia Yang; Mei Yang; Lianju Shan; Jianjun Dong;

  • 作者单位

    Research Center of Tsingtao Brewery Group, Qingdao 266061, Shandong, People's Republic of China;

    Research Center of Tsingtao Brewery Group, Qingdao 266061, Shandong, People's Republic of China;

    Research Center of Tsingtao Brewery Group, Qingdao 266061, Shandong, People's Republic of China;

    Research Center of Tsingtao Brewery Group, Qingdao 266061, Shandong, People's Republic of China;

    Research Center of Tsingtao Brewery Group, Qingdao 266061, Shandong, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    beer freshness; furfural; HPLC; SPE;

    机译：啤酒新鲜度;糠醛HPLC;固相萃取;

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