FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (7): 226-230.

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Extraction Conditions Optimization for Garlic Organic Sulfide and Analysis of Its Components

 PENG  Guang-Hua, HAN  Yue-Feng, MA  Rong-Chi   

  1. College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
  • Online:2008-07-15 Published:2011-07-28

Abstract: The garlic organic sulfides were prepared from garlic by ethanol solvent extraction. The effects of factors such as alcohol concentration, enzymatic time, extraction time, ratio of solid to liquid, extraction times on extraction ratio of garlic organic sulfide were examined. The optimum conditions were determined by orthogonal test, and its components were determinated by GC-MS. The optimum conditions are as follows: alcohol concentration 70%, enzymolysis time 2 h, ratio of solid to liquid 1:7(W/V), extraction temperature 50 ℃ and extracting for 3 times. The major components of the extract are acid, alcohol, ester, ketone, alkyl and alkene. The relative content of 2-vinyl-[4H]-1,3-dithiene is 30.42%, and the relative content of 3-vinyl-[4H]-1,2-dithiene is 25.38%.

Key words: garlic, organic sulfide, extraction, GC-MS