The general interest and the possibility of extensive use of polyphenol compounds determines the relevance of search of new low-cost and available sources of raw rnaQ-ial. In this aspect the Aronia melanocarpa. Viburnum op ulus are promising. I decided to determine the optimal concentration of ethyl alcohol, providing the highest antioxidant activity were prepared tinctures A. melanocarpa fruits, Viburnum opulus fruits and their combination. For this I took tinctures were made 1: 5 with percolation. Alcohol (40%, 70%, 95%) was used as an extracting agent; medicinal plant material - V. opulus fruits, A. melanocarpa fruits. Study of AOA was carried using test systems and method of EPR spectroscopy. Statistical analysis of the obtained data was done with Statgraphics (n = 6). Conclusion: The highest antioxidant activity was shown tincture V. opulus fruits 40%. In that way the optimal concentration of ethyl alcohol, providing the highest antioxidant activity is 40%.
Part of the book: Edible Berries - New Insights