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Free Radical Scavenging Activity and Anthocyanin Profile of Cabernet Sauvignon Wines from the Balkan Region
Department of Chemistry, Faculty of Science and Mathematics, University of Niš, Višegradska 33, P.O.Box 224, 18000 Niš, Serbia
Faculty of Chemistry, Studentski trg 12-16, 1100 Belgrade, Serbia
* Author to whom correspondence should be addressed.
Received: 20 April 2010; in revised form: 2 June 2010 / Accepted: 7 June 2010 / Published: 10 June 2010
Abstract: The present study is focused on anthocyanin derivatives characterizing the antioxidant activity of Cabernet Sauvignon wines produced from different vineyard regions in the Balkans. These bioactive compounds were quantified with a high performance liquid chromatography (HPLC)-diode array detection (DAD) method. The antiradical activity was estimated by the ability of the wine to scavenge the stable 2,2`-diphenyl-1-picrylhydrazyl free radical (DPPH·). The results show that the total anthocyanin content varied from 205.88 to 1940.28 mg/L, depending on agroclimatic factors and the enological practices of the corresponding vineyard region. The most prominent antocyanin in all investigated Cabernet Sauvignon wines was malvidin-3-O-monoglucoside, which accounted for 50.57% of total content, followed by its acetyl derivatives, 15.45%, and p-coumaryl derivatives 5.66%. The relationship between the anthocyanin derivatives and free radical scavenging activity is discussed. A high correlation between total anthocyanin content and DPPH· scavenging ability of tested wines was confirmed (r2 = 0.9619). The significant correlations were obtained between antiradical activity and the sum of 3-monoglucoside (r2 = 0.95594), the sum of 3-acetyl-3-glucoside (r2 = 0.9728) and the sum of p-coumaryl-3-glucoside (r2 = 0.8873) of wine samples. It can be concluded that, the anthocyanin composition can be used as biochemical marker for the authenticity of red grape cultivar and their corresponding single-cultivar wine.
Keywords: Cabernet Sauvignon wines; anthocyanins; free radical scavenging activity; HPLC
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Radovanović, B.; Radovanović, A. Free Radical Scavenging Activity and Anthocyanin Profile of Cabernet Sauvignon Wines from the Balkan Region. Molecules 2010, 15, 4213-4226.
Radovanović B, Radovanović A. Free Radical Scavenging Activity and Anthocyanin Profile of Cabernet Sauvignon Wines from the Balkan Region. Molecules. 2010; 15(6):4213-4226.
Radovanović, Blaga; Radovanović, Aleksandra. 2010. "Free Radical Scavenging Activity and Anthocyanin Profile of Cabernet Sauvignon Wines from the Balkan Region." Molecules 15, no. 6: 4213-4226.