食品科学 ›› 2010, Vol. 31 ›› Issue (18): 365-369.doi: 10.7506/spkx1002-6630-201018087

• 分析检测 • 上一篇    下一篇

超临界CO2-分子蒸馏纯化蒜油与水蒸气蒸馏法制取蒜油挥发性成分分析

陶宁萍,王赛赛,陈必文   

  1. 上海海洋大学食品学院
  • 收稿日期:2010-06-28 修回日期:2010-08-22 出版日期:2010-09-25 发布日期:2010-12-29
  • 通讯作者: 陶宁萍 E-mail:nptao@shou.edu.cn

Molecular Distillation Purification and Analysis of Volatile Components of Garlic Oil Extracted by Supercritical Carbon Dioxide Extraction

TAO Ning-ping,WANG Sai-sai,CHEN Bi-wen   

  1. College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
  • Received:2010-06-28 Revised:2010-08-22 Online:2010-09-25 Published:2010-12-29
  • Contact: TAO Ning-ping E-mail:nptao@shou.edu.cn

摘要:

采用分子蒸馏技术(MD)将超临界CO2(SFE)萃取的蒜油进行纯化,以顶空固相微萃取气质联用技术(HSSPME-GC-MS)分析蒜油中的挥发性成分,确定最佳工艺:进样速度1 滴/s,蒸馏温度60℃,刮膜转速250r/min。纯化的蒜油挥发性成分仅有4 种,二烯丙基二硫醚和二烯丙基三硫醚、2- 乙烯基-1,3- 二硫杂-4- 环己烯和3- 乙烯基-1,2- 二硫杂-5- 环己烯;与水蒸气蒸馏法制得的新鲜蒜油(F-GO)比较,SFE 法是一种理想的制取蒜油的方法;蒜油放置30d(S-GO)后有效成分含量下降,导致品质下降。

关键词: 超临界CO2 流体萃取, 分子蒸馏, 蒜油, 顶空固相微萃取气质联用, 挥发性成分

Abstract:

Molecular distillation (MD) purification the garlic oil extracted by supercritical carbon dioxide extraction (SCDE) was studied, followed by volatile composition analysis of the purified garlic oil using headspace solid-phase microwextraction coupled to gas chromatography-mass spectrometry (HS-SPME-GC-MS). The optimal MD conditions were determined as follows: sample loading speed 1 drop/s; distillation temperature 60 ℃; and film wiping speed 250 r/min. Only 4 compounds were found in MD-purified garlic oil, namely, diallyl disulfide, diallyl trisulfide, 2-vinyl-1,3-dithiacyclohex-4-ene and 3-vinyl-1,2-dithiacyclohex-5-ene. From comparison of volatile composition between steam distillation-extracted and SCDE-extracted garlic oils, SCDE is a better method for garlic oil extraction. Moreover, after 30-day storage of steam distillation-extracted garlic oil, the contents of the efficient components in it decreased, resulting in quality deterioration.

Key words: supercritical fluid extraction, molecular distillation, garlic oil, headspace-solid phase microextraction coupled to gas chromatography-mass spectrometry, volatile components

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