The paper supplies data regarding total and bio-available concentrations in four essential minerals – Fe, Me, Zn and Cu in grape samples from pollution-free areas in Caras-Severin County, Romania. Mean values of total and bio-accessible concentrations – 8.42 mg/kg Fe, 0.82 mg/kg Mn, 1.58 mg/kg Zn and 1.98 mg/kg Cu, and 3.90 mg/kg Fe, 0.49 mg/kg Mn, 1.28 ¬mg/kg Zn and 1.46 mg/kg Cu, respectively – determined experimentally show that the grapes analysed can be a supplementary source of micro-elements.
Bio-accessibility of micro-elements determined by calculus was 81.01% in Zn, 73.74% in Cu, 59.76 in Mn and 46.32% in Fe.
Under the conditions of this trial, mineral supply, i.e. the degree of coverage of the necessary daily intakes of bio-accessible micro-elements, reached 64.89% in Cu for both men and women, 19.5% in Fe in men and 8.67% in Fe for women, 8.52% in Mn for men and 10.89% in Mn for women, and 4.65% in Zn for men and 6.40% in Zn for women
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