Anthocyanins and antioxidant activity of red wines made from endemic grape varieties
2018
Kharadze, M. | Japaridze, I. | Kalandia, A. | Vanidze, M.
The article deals with the research of qualitative and quantitative content of monomeric anthocyanins of the red wine samples obtained from grapes of endemic varieties (Alexandrouli, Mujuretuli, Saperavi, Otskhanuri Sapere, Ojaleshi), spread in different regions of Georgia, and studied by UPLC-MS and HPLC methods. 9 anthocyanins have been identified and quantified. As a result of the analysis, we established: the difference between the varieties according to quantitative contents of the anthocyanins; the directly proportional correlation between quantitative content of wine anthocyanins and antioxidant activity; the reduce of the monomeric anthocyanins number and antioxidant activity after a year of wine aging.
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