食品科学 ›› 2009, Vol. 30 ›› Issue (20 ): 277-282.doi: 10.7506/spkx1002-6300-200920059

• 分析检测 • 上一篇    下一篇

顶空固相微萃取-气质联用法分析稻谷挥发性成分

林家永1,高艳娜2,吴胜芳3,王松雪1   

  1. 1.国家粮食局科学研究院 2.河南工业大学粮油食品学院 3.江南大学 食品科学与技术国家重点实验室
  • 收稿日期:2009-05-26 出版日期:2009-10-15 发布日期:2010-12-29
  • 通讯作者: 林家永1, E-mail:linjy@chinagrain.org
  • 基金资助:

    “十一五”国家科技支撑计划项目(2006BAD08B07)

Headspace Solid Phase Microextraction Coupled to GC-MS for Analyzing Volatile Components in Paddy

LIN Jia-yong1,GAO Yan-na2,WU Sheng-fang3,WANG Song-xue1   

  1. 1. Science Academy of State Administration of Grain, Beijing 100037, China ;2. School of Food Science and Technology,
    Henan University of Technology, Zhengzhou 450052, China;3. State Key Laboratory of Food Science and Technology,
    Jiangnan University,Wuxi 214022, China
  • Received:2009-05-26 Online:2009-10-15 Published:2010-12-29
  • Contact: LIN Jia-yong1 E-mail:linjy@chinagrain.org

摘要:

用顶空固相微萃取(HS-SPME)技术结合气相-质谱法(GC-MS)对不同稻谷中挥发性成分进行研究,优化顶空固相微萃取的条件,包括平衡时间、萃取时间、萃取温度以及样品量,并对不同稻谷中挥发性成分进行鉴定和分类分析。结果表明:稻谷中挥发性成分分析的最佳条件为平衡时间60min、萃取时间50min、萃取温度80℃、样品量20g。稻谷中的挥发性成分有醇类、醛类、酮类、酯类、烃类、有机酸类以及杂环类化合物等。最主要挥发性成分是醛类,其中含量最高是己醛,平均为13.31%;其次为壬醛,平均为7.93%。

关键词: 顶空固相微萃取, 稻谷, 气相-质谱联用, 挥发性组分

Abstract:

Headspace solid phase microextraction (HS-SPME) was employed for gas chromatography-mass spectrometric (GC-MS) analysis of volatile components in paddy in this study. The optimal HS-SPME conditions such as extraction time, temperature, sample amount and equilibration time were explored prior to quantitative investigations of volatile components in paddy, which were 50 min, 80 ℃, 20 g and 60 min, respectively. The volatile compounds in paddy consisted of alcohols, aldehydes, ketones, esters, hydrocarbons, organic acids, and heterocyclic components, etc. Aldehydes were the main volatile compounds, among which hexanal accounted for the highest percentage at 13.31% in average, followed by nonanal with an average percentage of 7.93%.

Key words: headspace solid phase microextraction, paddy, gas chromatography-mass spectrometry (GC-MS), volatile components

中图分类号: