Phytochemical Screening and Evaluation of Heavy Metals in a Medicinal Plant Marrubium Vulgare L

Abstract

Our research is part of the enhancement of our plant heritage that we deemed necessary to exploit it, our choice fell on a medicinal plant Marrubium vulgare L and this by the phytochemical characterization (of leaves, stems and roots) followed by the study of the xerophytic character, by determining the content of five heavy metals (Zinc, Copper, Cadmium, Lead and Chromium)in the different organs and by analysis with atomic absorption spectrometry (AAS). The results of the phytochemical tests showed the richness in secondary compounds, namely: flavonoids, tannins, saponosides, coumarins and reducing compounds. heavy metal analyzes showed that Marrubium vulgare L was found to have a high capacity to accumulate heavy metals, especially chromium and copper. The levels of its heavy metals are within the toxic threshold of plants.