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Introduction: The Hypericum perforatum L. has multiple healing properties. It is recommended for cleaning wounds and blood. Because of it’s pain-relieving and astringent properties it found usage as wounds cleaner, additionally, excellent medicine for nerves and works to reduce spasm as well as dissolving mucus. It’s essential oil is highly recommended.1
Material and Method: In this work was used a sample of commercially available tea consisted of Hypericum perforatum L. flowers. It was produced in Gadžin Han, Serbia by company EKOLIFE M.D. Plus. It was prepared in a microwave digestion device, and the qualitative and quantitative determination of microelements was performed using the ICP-OES method.2
Results and Conclusion: The content of 6 out of 10 potentially toxic microelements is given in descending order [mg/kg]: Mg (2058), Fe (68), Zn (39.7), Mn (19.4), Cu (9.6) and Ni (2.3). Elements such as: Mo, Se, Cr and B were not detected in the tested sample.
Acknowledgement: The authors are grateful to Republic of Serbia—Ministry of Science, Technological Development and Innovation, for financing the scientific research work numbers: 451-03-33/2026-03/200133 and 451-03-34/2026-03/200124, University of Niš, Faculty of Technology.
Keywords: Hypericum perforatum L., ICP-OES method, microelements.
References:
(1) Klemow, K. M.; Bartlow, A.; Crawford, J.; et al. Medical Attributes of St. John’s Wort (Hypericum perforatum) In: Benzie IFF, Wachtel-Galor S, editors. Herbal Medicine: Biomolecular and Clinical Aspects. 2nd edition. Boca Raton (FL): CRC Press/Taylor & Francis; 2011. Chapter 11. Available from: https://www.ncbi.nlm.nih.gov/books/NBK92750/
(2) Santos, A. F.; Matos, R. A.; Andrade, E. M. J.; dos Santos, W. N. L.; Magalhães, H. I. F.; Costa, F. N.; Korn, M. G. A. Multielement determination of macro and micro contents in medicinal plants and phytomedicines from Brazil by ICP OES." J. Braz. Chem. Soc. 2017, 28, 376−384. https://doi.org/10.5935/0103-5053.20160187