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In order to decrease the content of nicotine in tobacco and strengthen our technique of aroma addition, a method was established for aroma compounds of tobacco by using gas chromatography-mass spectrometry/olfactometry (GC-MS/O) in this paper. In order to further understand the aroma substances in tobacco, we analysed tobacco by GC-MS/O to screen aroma compounds. Based on the analysis of eright oils used as flavor for tobacco and Zimbabwe tobacco, the basic test method was established, and essential information of the aroma compounds was gain. The assessors familiar with the basic aroma compounds and learned about aroma characters though the research process. Simultaneous distillation and extraction was used to handling tobacco powder, and then analysed by GC-MS/O, GC-MS qualitative the volatile material while GC-O qualitative and quantitative the aroma compounds. The results showed that the key aroma compound of YlangYlang Oil is Benzene, 1-methoxy-4-methyl-l-, the key aroma compound of Lavender essential oil and eucaly puts oil is Eucalyptol, and the key aroma compound of geranium oil is 2H-Pyran,tetrahydro-4-methyl-2-(2-methyl-l-propenyl), and the key aroma compound of coriander oil is 1,6-Octadien-3-ol,3,7-dimethyl, B Megastigmatrienone and C Megastigmatrienone is the key aroma compound of Zimbabwe tobacco, at last the key aroma compound of orange oil、Peppermint oil、valerian oil is unkown.GC-MS/O can effectively screen aroma compounds in tobacco. And this method is applicable to other smell system analysis and research.
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