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IVES 9 IVES Conference Series 9 FOURIER TRANSFORM INFRARED SPECTROSCOPY IN MONITORING THE WINE PRODUCTION

FOURIER TRANSFORM INFRARED SPECTROSCOPY IN MONITORING THE WINE PRODUCTION

Abstract

The complexity of the wine matrix makes the monitoring of the winemaking process crucial. Fourier Transform Infrared Spectroscopy (FTIR) along with chemometrics is considered an effective analytical tool combining good accuracy, robustness, high sample throughput, and “green character”. Portable and non-portable FTIR devices are already used by the wine industry for routine analysis. However, the analytical calibrations need to be enriched, and some others are still waiting to be thoroughly developed. For this reason, an extended literature review took place identifying gaps for further research meeting the needs of the modern wine industry (Thanasi et al., 2022). The methodology that was followed was based on grouping the different studies according to the main sampling material used – 1) leaves, stems, and berries; 2) grape musts; 3) wines. For each sampling material the studies were categorized in terms of 1) main aim of the analysis; 2) type of sample; 3) sample preparation mode;4) wavenumber range (/cm); 5) spectral pre-treatment; 6) statistical method.

The most important findings were: 1) the different sample preparation modes can influence the spectra;

2) a limited number of samples (less than 100 in most cases) was used and the validation took place with cross-validation tests; 3) the developed models were not applied to different grapevine cultivars, har- vests, and types of wines; 4) many developed methods were focused on a specific oenological parameter or chemical compound or a specific stage of the winemaking process; 5) compounds with a concentration higher than 1 g/L are easier to be determined by FTIR; 6) the complexity of the wine matrix and the chemical similarity of the compounds under study makes the interpretation of the spectra very difficult due to several interferences.

1. Thanasi V., Catarino S., Ricardo-da-Silva J., 2022. Fourier-Transform Infrared Spectroscopy in monitoring the wine produc-tion. Ciência Téc. Vitiv., 37(1), 77-99. https://doi.org/10.1051/ctv/ctv2022370179

DOI:

Publication date: February 9, 2024

Issue: OENO Macrowine 2023

Type: Poster

Authors

Vasiliki Thanasi¹, Sofia Catarino1,2, Jorge Ricardo-da-Silva¹

1.LEAF – (Linking Landscape Environment Agriculture and Food ) Research Center, Instituto Superior de Agronomia, Univer-sidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal.
2.CeFEMA – (Centre of Physics and Engineering of Advanced Materials) Research Center, Instituto Superior Técnico, Univer-sidade de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal.

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Keywords

FTIR spectroscopy, wine, quality control, authenticity assessment

Tags

IVES Conference Series | oeno macrowine 2023 | oeno-macrowine

Citation

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