Analyzing Geographical Origin of Grapes and Wines of Russia

In connection with the growing consumer’s interest to Russian wines controlled place of origin PGI and PDO, most pressing issue is method their identification. One effective ways confirm wine's in world practice a comprehensive research elemental profile isotopic characteristics “light” elements using methods statistical analysis. We have selected 32 samples fresh grapes from various wine regions Russia (Krasnodar Territory, Republic Crimea, Dagestan). The grape must obtained them was fermented under laboratory conditions. prepared wines, determined, which included 71 indicators, as well indicators δ 18 О, δD released ethanol О water. resulting data set analyzed PCA, Permanova, Mann-Whitney test, machine learning also performed. It shown that difference between values mass concentration Al, Fe, Br, Re, U for Krasnodar Territory Crimea are statistically significant. On matrix values, Random Forest model trained, able distinguish an accuracy 90%. When analyzing nonlinear dependence, Si, Li, Co, Cu, Ba, Na, Ni, U, S, Mn, B water were determined by important.