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第 36 卷 第 5 期摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 范梦蝶等: 山西老陈醋晒制前后挥发性风味物质变化                                      4 3


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               Changes of Volatile Flavor Compounds in Shanxi Aged

                              Vinegar Before and After Aging



               FAN Mengdie,摇 XIAO Qunfei,摇 DU Wenbin,摇 WANG Yaxin,摇 WANG Tianze,摇
                                                         *
                              LIANG Jingjing,摇 XIE Jianchun ,摇 SUN Baoguo
          (Beijing Advanced Innovation Center for Food Nutrition and Human Health / Beijing Laboratory for
            Food Quality and Safety / Beijing Key Laboratory of Flavor Chemistry, Beijing Technology and
                                 Business University, Beijing 100048,China)


       Abstract: The samples of Shanxi aged vinegar before and after aging were analyzed by headspace solid鄄
       phase microextraction combined with gas chromatography鄄mass spectra and gas chromatography鄄
       olfactometry. Based on retention indices, mass spectra, and injection of authentic standards, a total of 84
       volatile compounds were identified by GC鄄MS and 42 odor鄄active compounds were identified by GC鄄O,
       including  sulfur鄄containing  compounds,  nitrogen鄄containing  heterocycles,  oxygen鄄containing
       heterocycles, aldehydes, ketones, alcohols, acids, esters, phenols and others. For both the vinegars
       before and after aging, 20 compounds were found in a major amount, such as acetic acid, tetramethyl
       pyrazine, furfural, furfuryl alcohol, 2, 3鄄butanedione, and so on. Meanwhile 16 compounds were found
       with high detection frequencies, such as 3鄄methylthio propanal, 2鄄ethyl鄄3, 5鄄dimethyl pyrazine, 2鄄
       furanacrolein, vanillin, acetic acid, 3鄄methyl butanoic acid, and so on. However, according to the total
       number of compounds, after aging, 14 compounds were newly detected, e. g. 3鄄methylthio鄄1鄄propanol,
       2鄄acetylfurane, benzyl alcohol, and propanoic acid, whereas 19 compounds were disappeared, e. g.
       dimethyl disulfide, benzyl acetone, butanoic acid, 3鄄methylpentanoic acid, ethyl butyrate, 2鄄acetyl
       pyridine, and 5鄄hydroxymethyl furfural. According to amounts of the compounds, those of the 11
       odoractive compounds (e. g. tetramethyl pyrazine, furfuryl alcohol, phenylethyl alcohol, propanoic acid,
       and phenethyl acetate) were markedly increased; whereas those of the 29 odor鄄active compounds (e. g.
       acetic acid, furfural, hexanoic acid, and benzophenone) were decreased. Overall, the aging processing
       resulted in decrease of compounds with off鄄flavors and simultaneously increase of compounds with pleasant
       flavors. The research results were expected to provide guidance for improving or up鄄grading the
       production technology of Shanxi aged vinegar.
       Keywords: Shanxi aged vinegar; aging; volatile flavor compounds; GC鄄O; odor鄄active


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