A Strategy for Differentiating Oak Barrel Aged and Non-Oak Barrel Aged Wines by Using UHPLC–HRMS Combined with Chemometrics
Yi Lv,
Feng-Lian Ma,
Jia-Nan Wang,
Yao Zhang,
Yuan Jiang,
Qian Ge,
Yong-Jie Yu
Affiliations
Yi Lv
Key Laboratory of Quality and Safety of Wolfberry and Wine for State Administration for Market Regulation, Ningxia Food Testing and Research Institute, Yinchuan 750004, China
Feng-Lian Ma
College of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
Jia-Nan Wang
College of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
Yao Zhang
Key Laboratory of Quality and Safety of Wolfberry and Wine for State Administration for Market Regulation, Ningxia Food Testing and Research Institute, Yinchuan 750004, China
Yuan Jiang
Key Laboratory of Quality and Safety of Wolfberry and Wine for State Administration for Market Regulation, Ningxia Food Testing and Research Institute, Yinchuan 750004, China
Qian Ge
Institute of Quality Standard and Testing Technology for Agro-Products of Ningxia, Yinchuan 750002, China
Yong-Jie Yu
College of Pharmacy, Ningxia Medical University, Yinchuan 750004, China
The time involved and the high economic cost of using oak barrels to age wines have led to a significant price difference compared to non-oak barrel aged wines and may lead to some fraudulent sales in the market. In this study, an untargeted metabolomic strategy was developed to detect the metabolite composition of oak barrel aged and non-oak barrel aged wines in both positive and negative ion modes by using UHPLC–HRMS combined with the recently developed chemometric method AntDAS. The results of partial least squares discrimination analysis (PLS-DA) showed that the samples were characterized into two categories. Finally, 51 compounds were identified in positive ion mode, while 26 compounds were identified in negative ion mode. The results indicate that combining UHPLC–HRMS with AntDAS can reveal the material basis of wines and has excellent potential to differentiate between oak barrel aged and non-oak barrel aged wines.
