engleski

Evaluation of Mineral and Heavy Metal Content in Croatian Blackberry Wines

The mineral and heavy metal content in 17 commercially available Croatian blackberry wines were determined by FAAS/FAES and GFAAS. The concentrations of potassium, sodium, calcium, magnesium, iron, copper, manganese, zinc, cobalt, chromium and cadmium were between (in mg/L) 924-1507, 11.81-120.10, 86.4-457.1, 183.4-381.2, 0.082-6.273, 0.058-0.767, 1.47-11.53, 0.247-6.645, 3.21-11.89 μg/L, 10.08-15.88 μg/L and 0.55-9.94 μg/L, respectively. A negative correlation has been found between the concentrations of macro (Mg) and micro (Fe) minerals. Furthermore, positive correlations were observed between the concentrations of manganese, cadmium and cobalt that indicated the origin of these elements in the anthropogenic source. Multivariate analyses (PCA/LDA) showed that distinct patterns of metal content in blackberry wines could be identified with a quite satisfactory accuracy (sensitivity and specificity) for the subregion of origin. In regard to the obtained results, Croatian blackberry wines could be considered healthy safe and as a good additional source of investigated essential nutrients such as manganese, magnesium and potassium.

blackberry wine; minerals; heavy metal; multivariate analyses; PCA; LDA

nije evidentirano