Jump to main content
Jump to site search

Issue 1, 2015
Previous Article Next Article

Quantitation of organic acids in wine and grapes by direct infusion electrospray ionization mass spectrometry

Author affiliations

Abstract

Several organic acids such as malic, tartaric and citric acids are key grape and wine constituents. They greatly contribute to the organoleptic properties of grapes and wines and are responsible for their acidity, a crucial wine property that is known to considerably vary as a function of grape variety, environmental conditions and viticulture, as well as during wine maturation. A rapid and simple method, requiring minimum sample pre-treatment and no chromatographic separation, based on direct infusion electrospray ionization mass spectrometry (ESI-MS) was developed and validated to quantitate organic acids in wines and grapes. This method was also demonstrated to be able to monitor a common wine adulteration procedure, that is, addition of citric acid for pH adjustment. ESI-MS data when treated via principal component analysis (PCA) was also found to group wine samples based on their profiles and concentrations of organic acids.

Graphical abstract: Quantitation of organic acids in wine and grapes by direct infusion electrospray ionization mass spectrometry

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Jan 2014, accepted on 24 Sep 2014 and first published on 25 Sep 2014


Article type: Paper
DOI: 10.1039/C4AY00114A
Author version
available:
Download author version (PDF)
Anal. Methods, 2015,7, 53-62

  •   Request permissions

    Quantitation of organic acids in wine and grapes by direct infusion electrospray ionization mass spectrometry

    F. Lena do Nascimento Silva, E. M. Schmidt, C. L. Messias, M. N. Eberlin and A. C. Helena Frankland Sawaya, Anal. Methods, 2015, 7, 53
    DOI: 10.1039/C4AY00114A

Search articles by author

Spotlight

Advertisements