Polyphenolic content of Vranec wines produced by different vinification conditions

Ivanova, Violeta and Dörnyei, Ágnes and Márk, László and Vojnoski, Borimir and Stafilov, Trajče and Stefova, Marina and Kilár, Ferenc (2011) Polyphenolic content of Vranec wines produced by different vinification conditions. Food Chemistry, 124. pp. 316-325.

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Abstract

Macedonian Vranec wines were analysed by HPLC coupled with DAD and MS detections and by spectrophotometric methods. ESI-IT MS and MS–MS methods with alternating ionisation polarity were used for identification of the phenolic compounds. Both, nonflavonoids (stilbens, hydroxybenzoic and hydroxycinnamic acids and derivatives) and flavonoids (flavonols, flavan-3-ols and anthocyanins) were detected in the samples. Vranec wines were produced under different fermentation conditions: maceration time of 3, 6 and 10 days, two doses of SO2 (30 and 70 mg l�1) and two yeasts for fermentation, in order to examine their effects on the extraction of phenolic compounds from grapes into the wine.

Item Type: Article
Subjects: Agricultural Sciences > Agricultural biotechnology
Natural sciences > Chemical sciences
Divisions: Faculty of Agriculture
Depositing User: Violeta Ivanova Petropulos
Date Deposited: 05 Nov 2012 08:02
Last Modified: 28 Oct 2013 12:39
URI: http://eprints.ugd.edu.mk/id/eprint/308

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