食品科学 ›› 2012, Vol. 33 ›› Issue (22): 290-293.

• 分析检测 • 上一篇    下一篇

鲜洋葱和干洋葱挥发性化学成分比较研究

孙雪君1,徐怀德1,*,米林峰2   

  1. 1.西北农林科技大学食品科学与工程学院 2.陕西省榆林市产品质量监督检验所
  • 收稿日期:2011-09-22 修回日期:2012-10-05 出版日期:2012-11-25 发布日期:2012-11-20
  • 通讯作者: 徐怀德 E-mail:xuhuaide@yahoo.com.cn

Analysis of Volatile Compounds from Fresh and Dried Allium cepa L.

  • Received:2011-09-22 Revised:2012-10-05 Online:2012-11-25 Published:2012-11-20
  • Contact: Xu Huai-De E-mail:xuhuaide@yahoo.com.cn

摘要: 采用固相微萃取方法,用气相色谱-质谱联用结合计算机谱图检索,对两个不同品种的鲜洋葱和干洋葱挥发性化学成分进行分析鉴定。结果表明:鲜洋葱和干洋葱样品共鉴定出挥发性成分49种,各样品挥发性成分种类分别为30、28、28种和25种,分别占其色谱流出组分总量的94.25%、96.01%、83.40%和86.11%它们主要是含硫化合物、醇类、醛类和酯类等;干洋葱挥发性成分与新鲜洋葱相比在组成和相对含量都存在着较大差异。

关键词: 洋葱, 挥发性成分, 固相微萃取, 气相色谱-质谱法

Abstract: The volatile compounds from fresh and dried Allium cepa L. were extracted by solid phase micro-extraction and the volatile composition profiling were analyzed by GC-MS combined with computer-assisted library search. Results showed that a total of 49 types of volatile compounds were identified from the fresh and dried Allium cepa L. 30, 28, 28, 25 types of volatile compounds were identified from 4 samples, which accounted for 94.25%, 96.01%, 83.40% and 86.11% of the total peak areas in four samples. These compounds were mainly sulfur compounds, alcohols, aldehyde, ester and other chemical groups. There was significant difference in volatile compound pattern and their relative contents from fresh and dried Allium cepa L.

Key words: Allium cepa L., volatile compounds, SPME, GC-MS

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