Published in Scientific Papers. Series B, Horticulture, Vol. LXVIII, Issue 1
Written by Maria RADA, Simion ALDA, Ariana VELCIOV, Daniela SCEDEI, Iasmina Mădălina ANGHEL, Alina DOBREI, Eleonora NISTOR, Marcel DANCI
The paper presents the results in determining essential element content in walnut kernel marketed in agri-food markets in Timisoara (Romania) and in estimating the supply of minerals of this food drug. Results of mineral elements analysis through flame atomic absorption spectrometry show that walnut kernel analyzed contains increased amounts (mg/100g) dry matter of K (338-457), Mg (163-270) and Ca (62.60-119) and significant amounts of Mn (2.56-10.40), Fe (l.19-5.58), Zn (1.23-3.58), Na (0.75-6.45), Cu (0.58-3.14), Cr (0.08-0.60), unevenly distributed according to the origin of the kernel and the nature of the analyzed element. The results obtained when evaluating the mineral intake, show that a consumption of 25 g of walnut kernel contributes differently to ensuring the daily mineral needs: is not of interest from the point of view of the contribution of Na, Ca and K, but can cover significant percentages of the required Zn, Fe and Mg and high Cr, Cu and Mn. Given the results of our experiment, we can say that the analyzed walnut kernel can be considered as a good additional source, especially of Cr, Mn, Cu, Mg and less as the source of Zn and Fe.
[Read full article] [Citation]
