Optimization on extraction process of garlic volatile oil and analysis by GC-MS
OBJECTIVE Optimize the extraction process of garlic volatile oil and analyze its chemical constituents.METHODS Based on the response surface analysis,the steam distillation method for extraction of volatile oil from garlic is determined,the analysis of volatile constituents is performed by GC-MS.RESULTS The optimum extraction conditions for volatile oil from garlic are as follows:the extraction temperature is 36℃,the ratio to solid-liquid ratio is 1∶4(g∶mL),the time of distillation is 3h.21 kinds of compounds were identified from the garlic volatile oil by GC-MS analysis,which were mainly sulfide compounds.CONCLUSION This extraction process can effectively entract the functional extracts of garlic and identify the chemical components of garlic by GC-MS,which provides a theoretical basis for the medicinal and edible use of garlic.
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