Determination of elements composition in Vranec wines produced with different maceration time

Ivanova, Violeta and Bogeva, Elena and Baceva, Katerina and Nikolić, Dragan and Stafilov, Trajče (2022) Determination of elements composition in Vranec wines produced with different maceration time. In: 32nd International Scientific-Expert Conference of Agriculture and Food Industry, 1-2 Dec 2022, Sarajevo, Bosnia and Hercegovina.

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Abstract

Vranec is one of the most important red grape varieties in Republic of N. Macedonia, grown in all vineyards, mostly in the Tikveš wine region. In this study, Vranec wines were produced with different maceration times (4, 7, 14 and 30 days) in order to determine the influence of vinification conditions on the elements profile. Analysis was performed with inductively coupled plasma – optical emission spectrometry (ICP-AES) for accurate determination of the concentration of 18 elements (Al, Ba, Bi, Ca, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Ni, P, S, Sr, V, Zn). The results demonstrate that K, P, Mg and Ca were the dominant elements in the wines, regardless the maceration time. Most of the elements, such as Al, Ba, Bi, Mg, Mn, Na, Ni, P, Sr, P and Zn increased during maceration. Copper was present in highest concentration in the wine macerated for 4 days (average value: 0,026 mg/L), followed by decreasing of the content during maceration, as it was expected. In general, the content of toxic elements Cu and Fe was lower than maximal allowed concentrations, concluding that studied Vranec wines did not contain heavy hazard metals and confirming their nutritional value with high level of macroelements such as K, P, Mg and Ca.

Item Type:	Conference or Workshop Item (Lecture)
Subjects:	Natural sciences > Chemical sciences Agricultural Sciences > Other agricultural sciences
Divisions:	Faculty of Agriculture
Depositing User:	Violeta Ivanova Petropulos
Date Deposited:	15 Dec 2022 12:29
Last Modified:	15 Dec 2022 12:29
URI:	https://eprints.ugd.edu.mk/id/eprint/30683

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