Characterization and Comparison of Commercial Chinese Cereal and European Grape Vinegars Using ^1H NMR Spectroscopy Combined with Multivariate Analysis  

作　　者：Xiaohua Wang Jie Wang Ghulam Mustafa Kamal Bin Jiang Peng Sun Xu Zhang Maili Liu 

机构地区：[1]Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance andAtomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China [2]University of Chinese Academy of Sciences, 100049 Beoing, China

出　　处：《Chinese Journal of Chemistry》2016年第11期1183-1193,共11页中国化学（英文版）

基　　金：The authors would like to thank the financial support from the National Major Basic Research Program of China （No. 2013CB910200） and the National Natural Science Foundation of China （Nos. 21120102038, 81227902, 21475146, 21221064, 20875098 and 21075132）.

摘　　要：A holistic and comparative quality assessment of vinegars from different countries is needed with international trade of vinegar become frequent. In this study, compounds characterization and comparison of commercial-grade Chinese cereal and European grape vinegars were performed using ^1H NMR spectroscopy coupled with principal component analysis （PCA） and orthogonal projection to latent structures discriminate analysis （OPLS-DA）. The results showed that Balsamic vinegars of Modena were clearly discriminated by higher amount of fructose and glucose, while Chinese aromatic vinegar and aged vinegars were characterized by higher amount of amino acids, volatile compounds, succinate and betaine. On the other hand, flavoring compounds in Chinese rice vinegar and European wine vinegars are less than the others. These characteristic components are associated with the special raw materials and producing process of each types of vinegar and endow them special flavor. The results obtained in this study provide a global insight into vinegar through a ^1H NMR based compounds analysis that allows a holistic quality assessment and comparison of vinegars from different manufacture origins.A holistic and comparative quality assessment of vinegars from different countries is needed with international trade of vinegar become frequent. In this study, compounds characterization and comparison of commercial-grade Chinese cereal and European grape vinegars were performed using ^1H NMR spectroscopy coupled with principal component analysis （PCA） and orthogonal projection to latent structures discriminate analysis （OPLS-DA）. The results showed that Balsamic vinegars of Modena were clearly discriminated by higher amount of fructose and glucose, while Chinese aromatic vinegar and aged vinegars were characterized by higher amount of amino acids, volatile compounds, succinate and betaine. On the other hand, flavoring compounds in Chinese rice vinegar and European wine vinegars are less than the others. These characteristic components are associated with the special raw materials and producing process of each types of vinegar and endow them special flavor. The results obtained in this study provide a global insight into vinegar through a ^1H NMR based compounds analysis that allows a holistic quality assessment and comparison of vinegars from different manufacture origins.

关 键 词：NMR PCA OPLS-DA CHARACTERIZATION COMPARISON VINEGAR 

分 类 号：TS264.22[轻工技术与工程—发酵工程] O641.4[轻工技术与工程—食品科学与工程]