Published in Scientific Papers. Series B, Horticulture, Vol. LXVIV, Issue 1
Written by Marko PETEK, Ema KLARIĆ, Sanja FABEK UHER, Antun ŠOKEC, Szilvia VERES, Šic Žlabur JANA
The aim of this work was to determine how the cultivation method affects the microelements content of the French bean (Phaseolus vulgaris L.) pods. The pod samples were collected in the city of Zagreb at three markets, three retail chains and three stores selling organic products. The concentrations of iron, zinc, manganese and copper were determined using an atomic absorption spectrometer. The value of the dry matter in the pods was between 6.74 and 12.54%. The proportion of microelements in the dry matter of the pods (mg/kg ST) was Fe 49.86-188.9, Zn 23.43-43.47, Mn 2.53-42.3, Cu 6.57-9.74, and in the fresh matter (mg/100 g fresh matter) Fe 0.49-1.96, Zn 0.19-0.42, Mn 0.03-0.32 and Cu 0.05-0.11. According to the Regulation on the provision of food information to consumers, it can be concluded that the consumption of 100 g of the studied french beans tested covers 4.21-8.0% of the daily human requirement of iron, 2.5-3.8% of the daily requirement of zinc, 4.0-13.0% of the daily requirement of manganese and 7.0-8.0% of the daily requirement of copper.
[Read full article] [Citation]
