Inductively coupled plasma-mass spectrometry (ICP-MS) characterization of some white wines from Dealu Bujorului Vineyard by their mineral content

Wine is a complex matrix, which, besides water, alcohol and sugar contain a great variety of components, organic as well as inorganic. Numerous studies have shown that a moderate consumption of wine, especially red wine, improves health and enhance longevity when it is combined with a balanced diet. Daily consumption of wine in moderate quantities contributes significantly to the requirements of the human organism for essential elements such as: Ca, Mg, K, Cu, Mn, Mo, Ni, Se, Co, Fe, F, I and Zn. On the other hand, several metals, such as As, Pb and Cd are known to be potentially toxic for human organism. The present work is aimed to establish the metal content of wines from Dealul Bujorului vineyard (S-E Romania) due to which we have not found information about the metal content of Romanian wines (Dealul Bujorului vineyard) using ICP-MS method for the determination of metals content from the published literature. The wine samples used in this experiment were obtained from the wines produced from Fetească Albă, Italian Riesling and Şarba from the wine production of the years 2013, 2014 and 2015 at the Dealul Bujorului Vineyard. The wine samples resulted from micro-wine production. Regarding the major elements in wine, Feteasca Albă variety has recorded the highest concentrations (81.86±3.72 mg/L Ca [2014]; 153.29±3.03 mg/L Mg [2014]; 54.79±4.61 mg/L Na [2014]), while the Șarba variety has recorded the highest concentrations of K (275.78±10.90 mg/L [2014]) and Li (13.48±0.10 mg/L [2014]). In all tested wine samples, the toxic metals contents were found in quantities below the limits imposed by legislation. Using the principal components analysis (PCA) it was possible to group metals from wine according to their concentration, the significant variables in relation to this separation being the K, Li, A, Ba, Cs, Sr, Co (PC1) and Na, V, La (PC2).