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2007 | 16 | 5 |
Tytuł artykułu

Determination of zinc, iron, nitrogen and phosphorus in several botanical species of medicinal plants

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Języki publikacji
The total concentration of zinc, iron, nitrogen and phosphorus, as well as their water and acetic acid extractable forms - nitrate nitrogen, ammonium nitrogen and phosphate phosphorus - were determined in st. John's wort herb (Hypericumperforatum L.) yarrow herb (Achillea millefolium L.), nettle leaves (Urtica dioica L .) and birch leaves (Betula pendula Roth.), collected from four natural locations in northern Poland. The content of total Zn and Fe was determined by FAAS, whereas of total N, total P and their extractable forms by UV/Vis spectrophotometry. The obtained results showed that particular plant species differed significantly in the contents of Zn, Fe, P and P-P04. The area of harvest didn't have major effects on the concentration of analyzed elements in the studied plant species. Significantly, 13 inter-element correlations were obtained for the studied elements, mainly between iron and nitrogen, iron and phosphorus, phospho­rus and nitrogen and among their water-extractable forms, indicating their involvment in metabolism of medicinal plants. Nutritional and toxicological aspects of the analyzed plants used commonly as folk medi­cines in Poland were evaluated by comparison of the obtained results with the WHO/FAO norms.
Opis fizyczny
  • Medical University of Gdansk, Al.Gen.J.Hallera 107, 80-416 Gdansk, Poland
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