Determination of protein and mineral contents in stinging nettle

Abstract: Content of proteins and minerals (Mg, Ca, Cu, Zn, Mn and Co) in leaves, stem and root of stinging nettle collected from different localities from the Republic of Macedonia were determined. Generally, the higher content of proteins and minerals were determined in leaves, followed by the content in stem and root. In the quantity of proteins significant differences were determined depending to the organ of stinging nettle. The highest determined values for the protein content in leaves expressed to the dry mass were 26.89% in leaves, 14.54% in stem and 10.89% in root. The values for the calcium content in stinging nettle were higher in comparison to the magnesium values. Zink content in the leaves was two and five times higher than the content of copper and manganese, respectively. In leaves, stem and root non significant differences in cobalt content were determined.