Biosorptive removal of contaminating heavy metals from plant extracts ofmedicinal value

摘要

Granulated Cladosporium cladosporioides # 2 biosorbent removed lead and cadmium from aqueous extracts of Nordostachys jatamansi and Vitis vinifera with high efficiency. Different properties of the extracts such as pH, UV-visible spectra and total dissolved solids were unaltered after biosorption, indicating that none of the components of the extracts were removed and the biosorbent itself did not transfer its components to the extracts. These findings open up new avenues for the application of metal biosorption technology.