The Effect of Grape Variety on the Micro- and Macroelement Composition of Grape Seeds

Székelyhidi, Rita and Giczi, Zsolt and Hanczné Lakatos, Erika and Kapcsándi, Viktória and Sik, Beatrix (2024) The Effect of Grape Variety on the Micro- and Macroelement Composition of Grape Seeds. ACTA AGRONOMICA ÓVÁRIENSIS, 65 (2). pp. 90-98. ISSN 1416-647X

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Abstract

This study aimed to examine the differences between the micro- and macro-element content of the seed of eight different grape varieties, namely ‘Italian Riesling’, ‘Cabernet Franc’, ‘Pinot Noir’, ‘Sauvignon Blanc’, ‘Királyleányka’, ‘Rhine Riesling’, ‘Merlot’, ‘Kékfrankos’. On the basis of the results, there were significant differences between the calcium (Ca), potassium (K), magnesium (Mg), phosphorus (P), iron (Fe), zinc (Zn), manganese (Mn), copper (Cu) and boron (B) content of grape seed varieties. In the case of macroelements, the largest amount of K (Italian Riesling 4239 mg/kg to Cabernet Franc 8646 mg/kg), followed by Ca (Pinot Noir 5435 mg/kg to Királyleányka 7369 mg/kg), P (Sauvignon Blanc 2566 mg/kg to Királyleányka 3470 mg/kg) and finally Mg (Cabernet Franc 1097 mg/kg to Királyleányka 1466 mg/kg) was contained in the seeds of the cultivars studied. Of the microelements, Fe was present in the largest amount (Sauvignon Blanc 23.7 mg/kg to Merlot 59.5 mg/kg) considering the grape varieties. The amounts of the other microelements tested were as follows: Mn from 13.1 mg/kg (Pinot Noir) to 31.3 mg/kg (Királyleányka), Cu from 9.38 mg/kg (Italian Riesling) to 19.1 mg/kg (Cabernet Franc), Zn from 10.9 mg/kg (Kékfrankos) to 16.2 mg/kg (Királyleányka) and B from 9.46 mg/kg (Italian Riesling) to 9.46 mg/kg (Rhine Riesling). Based on the results, the type of grape affects the micro- and macro-elements content of the seed, and the daily consumption of 100g of grape seed meal can significantly contribute to the daily intake of trace elements.

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