Determination of metals in Diplorhynchus condylocarpon (Müll.Arg.) Pichon (Apocynaceae) using ICP OES and health risk assessment

Résumé fourni par la source

Diplorhynchus condylocarpon (Müll.Arg.) Pichon (Apocynaceae) is a popular medicinal plant in Zambian traditional healthcare system. However, the health risks associated with its consumption have not been assessed. Therefore, the study analyzed the concentration of multiple metals in the plant samples using inductively coupled plasma optical emission spectroscopy (ICP-OES). Arsenic, lead, and selenium were not detected. Still, Cadmium levels in root (2.8 mg/kg), bark (2.6 mg/kg), and leaf (2.4 mg/kg), as well as chromium in root (42.6 mg/kg), bark (26.4 mg/kg), and leaf (25.6 mg/kg) were found to exceed the recommended limit of 0.3 mg/kg for Cd and 25.0 mg/kg for Cr set by WHO/FAO for medicinal plants. The estimated daily intake (EDI) of toxic metals in the plant was lower than the acceptable daily intake values, except for aluminum. The calculated health risk shows that the consumption of D. condylocarpon grown in the Copperbelt region of Zambia involves exposure to metals such as Al, Cd, Cr and Ni with a potential risk to human health if the plant is consumed in excess. This report provides a comprehensive analysis of the metals found in D. condylocarpon, commonly consumed in the traditional healthcare system in the mining region of Zambia.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.