Decolourization and detoxification of monoazo dyes by laccase from the white-rot fungus Trametes versicolor

Journal of Biotechnology
Barbora LegerskáMiroslav Ondrejovič

Abstract

The decolourization and detoxification of azo dyes (Orange 2, Acid Orange 6) by fungal laccase from Trametes versicolor were evaluated. For laccase catalysed reaction, the azonaphthol Orange 2, with 72.8% decolourization, was degraded more rapidly than the azobenzene Acid Orange 6, with 45.3%. The presence of hydroxyl group at o-position to azo bond in the structure of Orange 2 was more preferable than the presence of two hydroxyl groups at o- and p-positions to azo bond in Acid Orange 6. Although the laccase treatment was more effective for the Orange 2 decolourization, the toxicity of both monoazo dye solutions became less toxic for the prokaryote growth. The phytotoxicity of Orange 2 and Acid Orange 6 solutions after laccase treatment was decreased in the range of 41.2-64.3 %. Also, the photoxicity, as measured by the production of chlorophylls a and b by Chlorella vulgaris and Microcystis aeruginosa, was decreased by laccase treatment of selected monoazo dyes. Our results show that different dyes can be decolorized and detoxified by laccase from T. versicolor in a single step.

Citations

Jul 10, 2019·Environmental Science and Pollution Research International·Anna JasińskaJerzy Długoński
Nov 24, 2019·International Journal of Environmental Research and Public Health·Laura N LevinGuadalupe Gutiérrez-Soto
Jan 23, 2021·Journal of Hazardous Materials·Jantiya Isanapong, Peerapong Pornwongthong
Aug 7, 2021·Environmental Science and Pollution Research International·Pengfei XiaoJianqiao Wang
Aug 11, 2021·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Hongwei GuoXiaofei Hu
Jul 20, 2021·Synthetic and Systems Biotechnology·Liang XiangJunbiao Dai
Jun 28, 2019·Bioresource Technology·Daiane IarkRosane Marina Peralta
Oct 29, 2021·Environmental Technology·Juliana Barden SchallembergerMaria Eliza Nagel Hassemer
Jan 7, 2022·World Journal of Microbiology & Biotechnology·Daniela ChmelováStanislav Miertuš

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