食品科学

• 成分分析 • 上一篇    下一篇

HS-SPME-GC-MS联用分析美国巴旦木香气成分

卢静茹1,林向阳1,*,张 如1,吴 佳1,戴巧玲1,罗登来1,李 丹1,陈晓燕1,黄光伟2,Roger Ruan 3   

  1. 1.福州大学生物科学与工程学院,福建 福州 350116;2.美国加州杏仁商会,美国加利福尼亚州 莫德斯托 95354;
    3.美国明尼苏达大学生态系统与农业工程系,美国明尼苏达州 圣保罗 55108
  • 出版日期:2015-01-25 发布日期:2015-01-16
  • 通讯作者: 林向阳
  • 基金资助:

    美国农业部委托加州杏仁商会项目(0900080-2)

Analysis of Volatile Aroma Components in American Almonds by SPME-GC-MS

LU Jingru1, LIN Xiangyang1,*, ZHANG Ru1, WU Jia1, DAI Qiaoling1, LUO Denglai1, LI Dan1, CHEN Xiaoyan1, HUANG Guangwei2, Roger RUAN3   

  1. 1. College of Biological Science and Engineering, Fuzhou University, Fuzhou 350116, China;
    2. Almond Board of California, Modesto 95354, USA;
    3. Department of Biosystems and Agricultural Engineering, Minnesota University, St. Paul MN 55108, USA
  • Online:2015-01-25 Published:2015-01-16
  • Contact: LIN Xiangyang

摘要:

采用顶空固相微萃取和气相色谱-质谱联用方法分析美国巴旦木的挥发性成分,探讨不同萃取头、萃取时间、萃取温度和分流比对分析结果的影响。得到顶空固相微萃取的最优参数:DVB/CAR/PDMS萃取头、萃取温度80 ℃、萃取时间15 min、分流比5∶1。最佳萃取条件下分别对美国生巴旦木和烘烤巴旦木的挥发性成分进行分析,得到44 种生巴旦木挥发性成分和57 种烘烤巴旦木挥发性成分,生巴旦木的主要特征香气成分为正己醇、庚醇、正戊醇、壬醇、乙酸乙酯、乙酸丁酯、甲苯等。烘烤巴旦木的主要特征香气成分为正己醇、庚醇、正戊醇、壬醇、乙酸乙酯、乙酸丁酯、乙酸、3-甲基-丁醛、正己醛、糠醛、苯甲醛、苯乙醛、壬醛、2,5-二甲基吡嗪和2-戊基呋喃等。本实验为美国巴旦木挥发性成分的分析建立了快速分析鉴定的方法。

关键词: 美国巴旦木, 顶空固相微萃取, 气相色谱-质谱联用, 香气成分, 优化条件

Abstract:

Volatile aroma components in American almonds were extracted by headspace solid-phase microextraction (HSSPME)
and were identified by gas chromatography and mass spectrometry (GC-MS). SPME was carried out using a DVB/
CAR/PDMS fiber at 80 ℃ for 15 min, and the split ratio used was 5:1. Thes optimized method was applied to analyze
almonds. The results indicated that 44 and 57 volatile compounds were identified in raw almonds and roasted almonds,
respectively. The major volatile aroma components in raw almonds were 1-hexanol, heptanol, 1-pentanol, 1-nonanol, ethyl
acetate, acetic acid, butyl ester and toluene. As for roasted almonds, in addition to the six substances, other components such
as acetic acid, butanal, 3-methyl-, hexanal, furfural, benzaldehyde, benzeneacetaldehyde, nonanal, 2,5-dimethyl-pyrazine,
and 2-pentyl-furan were also detected.

Key words: American almond, headspace-solid-phase microextraction (HS-SPME), gas chromatography-mass spectrometry (GC-MS), volatile aroma components, optimum conditions

中图分类号: