Abstract
Here we report a simple and fast method for wine fingerprinting based on direct matrix-assisted laser desorption/ionization (MALDI) mass spectrometry analysis of different red wine samples, useful for batch-to-batch analysis and for the detection of key compounds even in trace amounts which may vary from vintage to vintage, and from one treatment to another one. A series of 20 samples from different wines were subjected to MALDI mass spectrometry. We found that 2,5-dihydroxybenzoic acid is far superior with respect to all the matrices tested To the best of our knowledge this is the first application of an effective wine profiling not limited to detection of anthocyanins. More than 80 molecular species were detected. Moreover, qualitative and quantitative differences were observed, owing to the nature and relative abundance of different chemical compounds among the wines.
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Acknowledgements
This work was supported by grants from Ministero dell’Universita e della Ricerca Scientifica (Progetti di Rilevante Interesse Nazionale 2002, 2003, 2005, 2006; FIRB 2001). Support from the National Center of Excellence in Molecular Medicine (MIURs, Rome) and from the Regional Center of Competence (CRdC ATIBB, Regione Campanias, Naples) is gratefully acknowledged. The authors gratefully thank Della Valle-Jappelli and Cantina Sociale di Solopaca (BN) for kindly providing wine samples. The authors wish to thank G. Sannia and P. Pucci for helpful discussion.
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Carpentieri, A., Marino, G. & Amoresano, A. Rapid fingerprinting of red wines by MALDI mass spectrometry. Anal Bioanal Chem 389, 969–982 (2007). https://doi.org/10.1007/s00216-007-1476-8
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DOI: https://doi.org/10.1007/s00216-007-1476-8