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顶空固相微萃取- 气相色谱/质谱法分析霸王花挥发性成分
引用本文:申利群,雷福厚.顶空固相微萃取- 气相色谱/质谱法分析霸王花挥发性成分[J].食品科学,2010,31(22):315-317.
作者姓名:申利群  雷福厚
作者单位:广西民族大学化学与生态工程学院,广西林产化学品开发与应用重点实验室
基金项目:广西自然科学基金项目(桂科自0899025);广西高校优秀人才资助项目(桂教人[2009]26 号)
摘    要:目的:探索分析霸王花挥发油化学成分的方法。方法:采用聚二甲基硅氧烷萃取头室温顶空微萃取20min、初始柱温60℃、程序升温至250℃、进样口温度250℃的气相色谱条件,EI 离子源、电子能量70eV 的质谱条件进行气相色谱/ 质谱法分析。结果表明:共鉴定出49 种化合物,主要挥发性成分及其含量为倍半萜及其含氧衍生物(27.78%)、脂肪族化合物(25.14%)、酯(14.40%)、2,6- 二叔丁基对甲酚(10.08%)和硅氧烷类化合物(6.27%)。结论:无溶剂的顶空萃取- 气相色谱/ 质谱联用技术可作为霸王花挥发性成分分析的有效方法。

关 键 词:霸王花  挥发性成分  顶空固相微萃取  气相色谱-  质谱法  
收稿时间:2010-01-19

Analysis of Volatile Components in Pitaya Flower by Headspace Solid Phase Microextraction-GC/MS
SHEN Li-qun,LEI Fu-hou.Analysis of Volatile Components in Pitaya Flower by Headspace Solid Phase Microextraction-GC/MS[J].Food Science,2010,31(22):315-317.
Authors:SHEN Li-qun  LEI Fu-hou
Affiliation:College of Chemistry and Ecological Engineering, Guangxi University for Nationalities, Key Laboratory of Development and Application of Forest Chemicals of Guangxi, Nanning 530006, China
Abstract:Objective: To explore the analytic method of volatile components in pitaya flower. Methods: Headspace solid phase microextraction (HS/SPME) technology was used to extract volatile components from pitaya flower. Gas chromatography coupled with mass spectrometry (GC-MS) was used to identify volatile components in pitaya flower at the condition of programmed temperature increase to 250 ℃, sample injection temperature at 250 ℃ and electronic ionization as the ion source. Results: A total of 49 volatile compounds were identified, which included sesquiterpenes and their oxidized derivatives (27.78%), alkanes (25.14%) and esters (14.40%), 2,6-di-tert-butyl-p-cresol (10.08%) and siloxane compounds (6.27%). Conclusion: HS/SPME-GC/MS strategy is a useful and feasible method for the analysis of volatile components in pitaya flower.
Keywords:pitaya flower  volatile component  headspace solid phase microextraction  gas chromatography-mass spectrometry  
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