Comparison of Phenolic Profile of Balsamic Vinegars Determined Using Liquid and Gas Chromatography Coupled with Mass Spectrometry.

Molecules

Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic.

Published: February 2022

AI Article Synopsis

  • Balsamic vinegar is popular and rich in polyphenolic compounds, with quality and phenolic content varying by production methods.
  • A new method combining gas chromatography (GC) and high-performance liquid chromatography (HPLC) with mass spectrometry was developed for detailed analysis of phenolic compounds in balsamic vinegars.
  • 14 balsamic vinegar samples were analyzed, identifying 29 phenolic compounds and 6 phenolic acids, with gallic acid, protocatechuic acid, caffeic acid, and -coumaric acid as the main compounds.

Article Abstract

Balsamic vinegar is one of the best known and most popular types of vinegar, and it is a rich source of polyphenolic compounds. The quality of balsamic vinegar as well as the content of phenolic substances vary depending on the production method. In the present work, we have developed a method for comprehensive characterization of the content of phenolic compounds in balsamic vinegars based on the combination of gas chromatography (GC) and high-performance liquid chromatography (HPLC) coupled with mass spectrometric detection in single mode (MS) and tandem mode (MS/MS). In total, 14 samples of different types of balsamic vinegar were analyzed without difficulty in sample preparation. The separation conditions and detection parameters of HPLC-MS/MS were optimized and used for the determination of 29 phenolic compounds and 6 phenolic acids. The profile of phenolic compounds was completed by semi-quantitative analysis of volatile organic compounds using GC-MS after optimized headspace solid-phase microextraction. Gallic acid, protocatechuic acid, caffeic acid, and -coumaric acid have been identified as the major phenolic compounds in balsamic vinegars.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8874619PMC
http://dx.doi.org/10.3390/molecules27041356DOI Listing

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