Mineral Composition of Fruits in Different Walnut (Juglans regia L.) Cultivars

  • Sina Niculina COSMULESCU University of Craiova, Faculty of Horticulture, 13 A. I. Cuza Str., 200585, Craiova
  • Adrian BACIU University of Craiova, Horticulture Faculty, A.I.Cuza, 13, Craiova
  • Gheorghe ACHIM University of Craiova, Faculty of Horticulture, A.I.Cuza 13 Street, 200585, Craiova
  • Mihai BOTU University of Craiova, Faculty of Horticulture, 13 A. I. Cuza St., 13, 200535 Craiova, Dolj
  • Ion TRANDAFIR University of Craiova, Chemistry Faculty, Calea Bucuresti 107, Craiova

Abstract

Walnuts are considered to be a good source of dietary minerals. Mineral composition was determined in nine walnut cultivars(‘Mihaela’, ‘Roxana’, ‘Velnita’, ‘Geoagiu 65’, ‘Jupanesti’, ‘Valcor’, ‘Valmit’, ‘Valrex’, ‘Argesan’) originated from Romania. A Milestone digestionmicrowave system was used for mineralization of solid samples. Microelements: Na, Ca, Mg, Fe, Mn, Cu, Se, Al, Cr, Zn, Sr and Rb weredetermined by using ICP-MS as measurement tool, and K content was determined with an atomic absorption spectrometer in flame,by using as excitation source the cavitar cathode lamp for potassium. Mineral elements content presented significant differences from acultivar to another. Potassium content has varied between 357.1 mg/100g in ‘Valmit‘ cultivar, and 499.6 mg/100g, in ‘Geoagiu 65’ cultivar, recording significant differences from the average (414.0 mg/100g) in ‘Velnita‘, ‘Roxana‘and ‘Argesan‘cultivars. Magnesium content variedbetween 189.2 mg/100 g in ‘Mihaela’ cultivar and 278.1 mg/100 g in ‘Argesan’ cultivar, significant differences from the average (216.6mg/100g) were obtained in cultivars ‘Geoagiu 65‘, ‘Valrex‘, ‘Argesan‘. The order of nutritive elements depending on their content/100g of produce was K>Mg>Ca>Mn>Fe> Cu>Zn>Na>Cr>Al>Rb>Sr. Comparing obtained data with the ones existing in the literature,Romanian walnut cultivars proved to be important sources of nutritive elements, and walnut kernel consumption can contribute to a wellbalanced diet.

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Published
2009-11-02
How to Cite
COSMULESCU, S. N., BACIU, A., ACHIM, G., BOTU, M., & TRANDAFIR, I. (2009). Mineral Composition of Fruits in Different Walnut (Juglans regia L.) Cultivars. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 37(2), 156-160. https://doi.org/10.15835/nbha3723169
Section
Research Articles