Correlation between indigenous and commercial strains of yeast in the production of wine from the grape variety Vranec

Petrov, Kire and Iiieva, Fidanka and Dimovska, Violeta and Gunova, Natasa (2017) Correlation between indigenous and commercial strains of yeast in the production of wine from the grape variety Vranec. VIII International Scientific Agriculture Symposium “AGROSYM 2017” Jahorina, October 05 - 08, 2017. ISSN 978-99976-718-1-3

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Abstract

This scientific research determined the impact of indigenous and commercial yeast strain on the production of wine from the grape variety Vranec, grown on Crveni bregovi locality, near Negotino, at an altitude of 250 m. The main objective was to display the correlation between indigenous yeast strains F-8 and F-78 with the commercial strain D-80 (Lallemand). The domestic yeast F-8 and F-78 were previously isolated at the Tikves wine region, Republic of Macedonia. The main purpose of this research is to make a comparison between the wine produced from indigenous yeast strains F-8 and F-78 with the commercial strain D-80. The chemical analysis of the wine, monomeric anthocyanins, polyphenolic composition, and the color intensity of the wine produced from the domestic yeast strains, were compared with the wine produced from the commercial yeast strain. The basic parameters, such as alcohol, sugar, total acids, volatile acids, pH, free/total SO2, were determined applying international methods of analysis of wines and musts (OIV methods). The correlation value between the main parameters was obtained by using the statistical analysis of the results obtained by applying the software package SPSS 19. The analysis shows that there is a correlation between the analyzed parameters of the wine from the grapevine Vranec, among different strains of yeasts. The Pearson’s coefficient of correlation (ρ), between wine Vranec from F-8 and D-80 is (,996) which means high correlation value. Also, the Pearson’s coefficient of correlation (ρ), between wine Vranec from F-78 and D-80 is (,999) which means realy high correlation value. Keywords: indigenous yeasts, wine, Vranec, anthocyanins.

Item Type: Article
Subjects: Agricultural Sciences > Agricultural biotechnology
Divisions: Faculty of Agriculture
Depositing User: Fidanka Ilieva
Date Deposited: 30 Jul 2018 09:14
Last Modified: 30 Jul 2018 09:14
URI: http://eprints.ugd.edu.mk/id/eprint/19742

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