Keywords
Abstract
In connection with the increasing consumer interest in wines with a controlled place of origin – protected geographical indication (PGI) and protected designation of origin (PDO), the question of how to identify them is especially acute. The most effective way to confirm the place of origin of wine in world practice is a comprehensive study of the elemental profile and isotopic characteristics of water component. At the same time, information on the distinctive indicators of the elemental profile and isotopic characteristics of water component in Crimean wines is limited. In this regard, in the period from 2017 to 2023, 248 samples of grapes grown in different soil and climatic zones of Crimea, and the wines produced from them, were studied. The content of elemental profile was determined using the mass spectral analysis method (X-7, Thermo Elemental, USA); the ratios of oxygen isotopes of water component were obtained using a Delta V Advantage isotope mass spectrometer (Thermo Fisher Scientific, USA - Germany). The ranges of values of the elemental profile indicators and isotopic characteristics of water component for wines from different climatic zones of Crimea were established. Differences in the elemental composition and 18O indicator of water component are presented, reflected in a higher content of Ba, Be, Mn elements in the Steppe zone of Crimea compared to samples from the South Coast zone; as well as higher values of isotopic characteristics of the oxygen of water component in samples from the South Coast zone compared to other zones. The lowest values of this indicator were recorded in samples from the Piedmont zone. The results obtained allow creating a database on the basis of which it is possible to confirm the place of geographical origin of Crimean wines.