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The aim of this study was to investigate the biological and chemical activity on two species of fungi of the genus Penicillium isolated from wastewater. On the selected species of fungi the different antioxidant activity assays were carried out: DPPH free-radical scavenging activity, total antioxidant activity, Fe2+- chelating ability and Fe3+- reducing power. Total phenol content was also determinate for ethanolic extract of mycelia. Penicillium chrysogenum ethanolic extract contained higher total phenolic content and better total antioxidant capacity as well as ferrous ion chelating ability. Penicillium fumiculosum ethanolic extract showed higher DPPH free-radical scavenging activity, as well as reducing power. Based on the obtained results it can be concluded that two types of fungi are potential new sources of natural antioxidants.
Jakovljević et al. (2013) studied this question.