Porovnání anthokyanů u modrých odrůd

This thesis deals with the comparison of anthocyanins in blue grape varieties. It has been compared 23 varieties of Vitis vinifera L. and 9 interspecific varieties from the harvest 2015. The grapes come from the wine region Mikulov and from the wine village Lednice. Literary part deals with the chemical structure of anthocyanins and their occurrence in grapes, further accumulation of anthocyanins and influencing factors, physico-chemical factors affecting the stability of anthocyanins, change of anthocyanins during the vinification and extraction of anthocyanins and measurement of color parameters. The practical part is especially focused on compare the content of anthocyanins and their profile in varieties of Vitis vinifera L. and interspecific varieties