食品科学

• 成分分析 • 上一篇    下一篇

核桃分心木水提液易挥发性成分分析

李 平,贾红婕,靳 毓,姬亚利,范婷文,李美萍,张生万   

  1. 山西大学生命科学学院,山西 太原 030006
  • 出版日期:2016-08-25 发布日期:2016-08-30
  • 通讯作者: 张生万
  • 基金资助:

    大学生创新创业训练计划项目(2015013220)

Analysis of the Volatile Compositions of Water Extracts from Walnut Diaphragm

LI Ping, JIA Hongjie, JIN Yu, JI Yali, FAN Tingwen, LI Meiping, ZHANG Shengwan   

  1. College of Life Science, Shanxi University, Taiyuan 030006, China
  • Online:2016-08-25 Published:2016-08-30
  • Contact: ZHANG Shengwan

摘要:

利用4 种不同萃取特性的萃取头,对核桃分心木水提液中易挥发性成分进行萃取,并在HP-5(弱极性)和RTX-WAX(强极性)2 种色谱柱上分离,采用顶空固相微萃取和气相色谱-质谱(gas chromatography-massspectrometry,GC-MS)联用法进行分析,并讨论不同色谱柱和萃取头对分析其易挥发性成分的影响。结果表明:选用不同萃取特性的萃取头,在不同极性色谱柱上分离,经GC-MS分析,共得到结构确定的化合物115 种,其中醇类化合物21 种、酯类化合物18 种、酮类化合物15 种、芳香族化合物14 种、烃类化合物13 种、醛类化合物12 种、酸类化合物6 种、酚类化合物5 种、醚类化合物2 种、其他类型化合物9 种。主要易挥发性成分是乙酸、乙酸乙酯、2,6-二叔丁基-4-甲基苯酚、薄荷醇、雪松醇、2,3-丁二醇、1-己醇、苯乙醇、3-叔丁基-4-羟基苯甲醚、己醛、甘菊蓝。

关键词: 气相色谱-质谱法, 核桃分心木, 水提液, 易挥发性成分

Abstract:

The volatile compounds of water extracts from walnut diaphragm were extracted by using four different polar
solid-phase micro-extraction (SPME) fibers, separated by either of two chromatographic columns, HP-5 (with weak polarity)
and RTX-WAX (with strong polarity), and analyzed by using head-space solid-phase micro-extraction (HS-SPME) and gas
chromatography-mass spectrometry (GC-MS). Further, the effects of different chromatographic columns and extraction
fibers on the analysis of volatile components were examined. Results showed that a total of 115 volatile compounds with
known structure from four walnut diaphragm extracts were separated on different chromatographic columns and identified
by GC-MS, consisting of 21 alcohols, 18 esters, 15 ketones, 14 aromatic compounds, 13 hydrocarbons, 12 aldehydes,
6 acids, 5 phenolic compounds, 2 ethers and 9 other compounds. The main volatile components were acetic acid, ethyl
acetate, 2,6-dibutyl-4-methylphenol, menthol, cedrol, 2,3-butanediol, 1-hexanol, phenethylalcohol, 3-butyl-4-hydroxyanisole,
hexanal, and azulene.

Key words: gas chromatography-mass spectrometry (GC-MS), walnut diaphragm, water extracts, volatile composition

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