Rapid analysis of Stanušina wines using a fourier-transform infrared spectroscopy

Bogeva, Elena and Ailer, Štefan and Jakabová, Silvia and Dimovska, Violeta and Ivanova, Violeta (2024) Rapid analysis of Stanušina wines using a fourier-transform infrared spectroscopy. In: 22nd International Summer School on Bioanalysis, 7-14 July 2024, Charles University, Faculty of Science, Prague, Czech Republic.

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Abstract

Stanušina is an autochthonous Macedonian grape variety, grown mainly at the oldest Tikveš wine district. The main characteristic of this variety is its high endurance, especially on droughts and it ability to grow at vineyards with not very fertile soils. In this study, three Stanušina wines have been produced with addition of two doses of honey before fermentation (20 and 40 g/L added honey) and one control wine without addition of honey. A fourier-transform infrared spectroscopy (FT-IR) was applied for rapid and simultaneous determination of 14 parameters in Stanušina wines, including alcohol, density, glycerol, pH, total acidity, total sugars, individual carbohydrates (glucose, fructose and saccharose) and individual organic acids (tartaric lactic, malic, citric and acetic). Addition of 20 g/L honey before fermentation increased the content of almost all parameters, with exception of glucose and saccharose, which concentration was highest in the wine with highest amount of added honey. Tartaric acid was the dominant organic acid, followed by malic, citric and lactic acid. All wines presented satisfactory values for alcohol, pH, total acidity, glycerol and acetic acid, which confirm the quality and stability of the wines.

Key words: organic acids, carbohydrates, basic parameters, FT-IR, Stanušina wine.

Acknowledgements
This work was supported by the CEEPUS Network (SK-1516) BioScience, Food and Health, which is acknowledged.

Item Type: Conference or Workshop Item (Poster)
Subjects: Natural sciences > Chemical sciences
Agricultural Sciences > Other agricultural sciences
Divisions: Faculty of Agriculture
Depositing User: Violeta Ivanova Petropulos
Date Deposited: 12 Sep 2024 10:20
Last Modified: 12 Sep 2024 10:20
URI: https://eprints.ugd.edu.mk/id/eprint/34619

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