Multi-element composition of red and white wines from Bujoru, Smulti and Oancea wine center, Romania

Abstract

Smulti and Oancea wine-growing centers from Dealu Bujorului Vineyard. For all tested wine samples, the toxic metals contents were found in quantities below the limits established by legislation. The average data shows that the red wines contain highest concentration of Cd (0.17 µg/L), while the content of Cd in white wines are 0.11 µg/L. The concentration of U was 0.25 µg/L in red wines and 0.24 µg/L in white wines, while the concentration of Hg was 0.24 µg/L in red wines and 0.20 µg/L in white wines. The mean contents of Ni, Cr and Mn were 312.32 µg/L, 526.19±2.63 µg/L and 0.59±0.08mg/L, respectively. The concentration for Cu ranged from 0.45±0.10 mg/L to 0.90±0.04 mg/L, the last value being close to the law limit (1 mg/L). The four samples [Merlot 0.82±0.07 mg/L Bujoru wine-growing center (2015), Feteasca Alba 0.83±0.05 mg/L Smulti wine-growing center (2015), Merlot 0.83±0.05 mg/L Smulti winegrowing center (2015) and Cabernet Sauvignon 0.83±0.08 mg/L Oancea winegrowing center (2015)] showed relatively high concentration of Cu. Reporting the obtained results [Cd average 0.13±0.02 µg/L (0.1mg/kg M.L.A. = Maximum Limit Allowed) Pb average 40.64±1.85 µg/L (0.