Determining total and bio-available concentrations in Fe, Mn, Zn and Cu in grapes and assessing grape mineral supply

I.Gogoasa, Madalina Liliana Badea, Maria Rada, Daniela Velimirovici, Liana Maria Alda, Olivia Lorena Marutoiu, Antoanela Lena Cozma, S. Alda

Volume 23, Issue 2;
Pages: 63-67; 2017
ISSN: 2069-0053 (print) (former ISSN: 1453-1399), Agroprint;
ISSN (online): 2068-9551
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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