| Title: | Age-dependent characterization of volatile organic compounds and age discrimination in Chinese rice wine using an untargeted GC/MS-based metabolomic approach |
| Address: | "State Key Laboratory of Food Science & Technology, Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China. State Key Laboratory of Food Science & Technology, Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China. Electronic address: shuangchen@jiangnan.edu.cn. State Key Laboratory of Food Science & Technology, Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China. Electronic address: zhmzhou@jiangnan.edu.cn" |
| DOI: | 10.1016/j.foodchem.2020.126900 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "An untargeted gas chromatography/mass spectrometry (GC/MS)-based metabolomics by XCMS-Online software combined with partial least squares regression (PLSR) was applied to characterize volatile organic compounds (VOCs) during Chinese rice wine aging and discriminate ages for the first time. Finally, seven different ages between 0 and 15 years were well discriminated by PLSR. Total 104 feature groups were isolated from all optimized candidate peaks, and 94 VOCs (including unknowns) were preliminarily identified as aging markers. Therein, alcohols, sulfides, phenols and their derivatives, small esters and acids exhibited significantly better discrimination of short-aged rice wines. Correspondingly, furans, aromatics, aldehydes, ketones, most esters and acids, discriminated the long-aged samples better. Meanwhile, the potential origins of certain VOCs were also proposed for further research. Overall, this untargeted GC/MS-based metabolomics coupled with PLSR was a feasible tool for a rapidly and globally age-dependent characterization of volatile metabolomic signals in Chinese rice wine and thus for age discrimination" |
| Keywords: | "2, 3, 5, 6-Tetramethylpyrazine (PubChem CID: 14296) 2-Phenylbut-2-enal (PubChem CID: 6429333) 3-Methylbutanoic acid (PubChem CID: 10430) 3-Methylbutanol (PubChem CID: 31260) 3-Methylthiopropanol (PubChem CID: 10448) Acetophenone (PubChem CID: 7410) Age discr;" |
| Notes: | "PublisherWang, Na Chen, Shuang Zhou, Zhemin eng England 2020/05/11 Food Chem. 2020 Apr 23; 325:126900. doi: 10.1016/j.foodchem.2020.126900" |
