Cell-free synthesis of silver nanoparticles in spent media of different Aspergillus species.

ABSTRACT: The recovery and valorization of metals and rare earth metals from wastewater are of great importance to prevent environmental pollution and recover valuable resources. Certain bacterial and fungal species are capable of removing metal ions from the environment by facilitating their reduction and precipitation. Even though the phenomenon is well documented, little is known about the mechanism. Therefore, we systematically investigated the influence of nitrogen sources, cultivation time, biomass, and protein concentration on silver reduction capacities of cell-free cultivation media (spent media) of Aspergillus niger, A. terreus, and A. oryzae. The spent medium of A. niger showed the highest silver reduction capacities with up to 15 μmol per milliliter spent medi

SUBMITTER: Boldt A 

PROVIDER: S-EPMC9978913 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature