食品科学 ›› 2011, Vol. 32 ›› Issue (2 ): 248-251.doi: 10.7506/spkx1002-6630-201102058

• 分析检测 • 上一篇    下一篇

二次分子蒸馏提取与市售大蒜油的气质联用分析和比较

崔刚   

  1. 盐城工学院
  • 收稿日期:2010-06-22 修回日期:2010-12-15 出版日期:2011-01-25 发布日期:2011-01-10
  • 通讯作者: 崔刚 E-mail:cuigang@ycit.cn

Comparative Analysis of Chemical Composition of Commercially Available Garlic Oils and Garlic Oil Extracted by Two-stage Molecular Distillation by GC-MS

CUI Gang   

  1. Yancheng Institute of Technology
  • Received:2010-06-22 Revised:2010-12-15 Online:2011-01-25 Published:2011-01-10

摘要: 采用二次分子蒸馏技术提取大蒜中大蒜油,并运用气相色谱- 质谱联用分析,通过计算机检索与标准谱图对照,鉴定大蒜油中组分和主要化学成分,比较提取所得大蒜油与市售大蒜油的化学成分差异。结果表明:经分子蒸馏法所得大蒜油产物中主要含有二烯丙基一硫化物、二烯丙基二硫化物、甲基二硫化物、二烯丙基硫代亚磺酸酯及三硫醚等化合物,未检测出环状二硫醚和四硫醚化合物。

关键词: 大蒜油, 气质联用, 分子蒸馏, 组分

Abstract: Three brands of commercially available garlic oils and garlic oil extracted by two-stage molecular distillation were comparatively studied for their chemical composition by means of GC-MS analysis, computer-aided searching and contrast with the standard mass spectra. The garlic oil extracted by two-stage molecular distillation mainly consisted of diallyl sulfide, diallyl disulfide, methyl disulfide, 2-propene-1-sulfinothioic acid-5-p ropenyl ester and trisulfide. Neither cyclic disulfide nor tetra-sulfide, however, was found in it.

Key words: garlic oil, GC-MS, molecular distillation, constituent

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