Bisphenol A (BPA) is an endocrine disruptor compound (EDC) of xenobiotic origin occurring in natural waters and wastewaters, especially in the most industrialized and urbanized areas. Recent investigations report the use of ligninolytic fungi for the removal of aromatic contaminants, including some EDCs, from different matrices. Humic acids (HA) are widely spread in all natural systems and their presence is ascertained to interfere with microbial growth and activity. The objective of this study was to assess the capacity of three ligninolytic fungi, Trametes versicolor, Stereum hirsutum and Pleurotus ostreatus, to remove BPA at the concentration of 4.6 mg L(-1) from water. Fungal growth on potato dextrose agar (PDA), in the absence and in the presence of a leonardite HA or a green compost HA, was evaluated during the biodecontamination process. The methodological approach adopted in this study excluded the presence of the mycelium in the contaminated water. Results obtained evidenced a relevant removal of BPA by any fungus when PDA only was used as growing medium. The addition of leonardite HA and compost HA stimulated the mycelial growth of any fungus, especially T. versicolor, and significantly enhanced the removal of the contaminant from water by, respectively, T. versicolor only and T. versicolor and S. hirsutum.
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http://dx.doi.org/10.1016/j.ecoenv.2012.01.013 | DOI Listing |
Molecules
November 2024
Department of Basic and Applied Sciences, University of Basilicata, 85100 Potenza, Italy.
The aim of this study was to evaluate the antioxidant properties of the products derived from the biodegradation of lignin by the ligninolytic enzymes present in an aqueous extract of the mushroom . A mixture obtained after the incubation of lignin for 18 h with extract was tested in vitro for its total polyphenol content, reducing power, and 1,1-diphenyl-2-picrylhydrazyl (DPPH) and hydroxyl (OH) radical-scavenging activities. The results showed that the enzymatic treatment of lignin enhanced its antioxidant performance.
View Article and Find Full Text PDFAIMS Microbiol
November 2024
Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0394, Japan.
Little is known regarding the diversity patterns of Xylariaceae and Hypoxylaceae (Ascomycota) fungi taking part in the lignin decomposition of leaf litter from different tree species and under different climatic regions. The alpha and beta diversity of Xylariaceae and Hypoxylaceae fungi was investigated on bleached leaf litter from nine subtropical and cool temperate tree species in Japan. A total of 248 fungal isolates, obtained from 480 leaves from the nine tree species, were classified into 43 operational taxonomic units (OTUs) with a 97% similarity threshold and were assigned to nine genera of Xylariaceae and Hypoxylaceae.
View Article and Find Full Text PDFJ Basic Microbiol
December 2024
Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, India.
Bisphenol A (BPA), an endocrine disruptor is used in manufacturing of polycarbonate plastics for food-drink packaging. In the present study, optimized set of conditions to degrade commercial grade BPA has been used and applied in degrading shredded leached low-density polyethylene (LDPE) residues and its leachate (198 µg/L BPA) using white rot fungus Hypocrea lixii. One-at-a-time method showed maximum BPA degradation of 98.
View Article and Find Full Text PDFEcotoxicol Environ Saf
November 2024
Discipline of Microbiology, University of KwaZulu-Natal (Westville Campus), Durban 4000, South Africa. Electronic address:
Two indigenous fungal strains, Trichoderma lixii FLU1 (TlFLU1) and Talaromyces pinophilus FLU12 (TpFLU12) showed potential to biodegrade anthracene. Response Surface Methodology (RSM) employing Box-Behnken Design (BBD) and Central Composite Design (CCD) methods optimized crucial physicochemical parameters like pH, temperature, biomass, substrate concentration and media composition. BBD maximized anthracene biodegradation efficiency by predicting 98.
View Article and Find Full Text PDFBioresour Technol
November 2024
Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China.
Bisphenol S (BPS) has attracted much attention as an emerging hazardous contaminant due to its endocrine disruption and oncogenic effects. Although white-rot fungi have remarkable bioremediation capabilities for some bisphenols, little is known about their performance in BPS degradation. In this study, the newly discovered Phlebia acerina S-LWZ20190614-6 exhibited high capacity to degrade BPS.
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