The Synergistic Action of Electro-Fenton and White-Rot Fungi in the Degradation of Lignin
White-rot fungus is a common lignin-degrading fungus. However, compared with those of microorganisms that biodegrade lignin alone, synergistic systems of electro-Fenton processes and white-rot fungi are superior because of their high efficiency, mild conditions, and environmental friendliness. To in...
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| Format: | Article |
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Frontiers Media S.A.
2020-03-01
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| Series: | Frontiers in Bioengineering and Biotechnology |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fbioe.2020.00099/full |
| _version_ | 1818884086152822784 |
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| author | Lipeng Hou Dandan Ji Dandan Ji Dandan Ji Weifang Dong Lin Yuan Fengshan Zhang Yan Li Lihua Zang |
| author_facet | Lipeng Hou Dandan Ji Dandan Ji Dandan Ji Weifang Dong Lin Yuan Fengshan Zhang Yan Li Lihua Zang |
| author_sort | Lipeng Hou |
| collection | DOAJ |
| description | White-rot fungus is a common lignin-degrading fungus. However, compared with those of microorganisms that biodegrade lignin alone, synergistic systems of electro-Fenton processes and white-rot fungi are superior because of their high efficiency, mild conditions, and environmental friendliness. To investigate the details of lignin degradation by a synergistic system comprising electro-Fenton processes and white-rot fungi, lignin degradation was studied at different voltages with three lignin-degrading fungi (Phanerochaete chrysosporium, Lentinula edodes, and Trametes versicolor). The lignin degradation efficiency (82∼89%) of the synergistic systems at 4 V was higher than that of a control at 96 h post inoculation. Furthermore, the H2O2 produced and phenolic lignin converted in the system can significantly enhance the efficiency of ligninolytic enzymes, so a considerably increased enzyme activity was obtained by the synergistic action of electro-Fenton processes and white-rot fungi. 13C NMR spectroscopy revealed that aromatic structure units (103–162 ppm) were effectively degraded by the three fungi. This study shows that the combination of electro-Fenton processes and white-rot fungi treatment significantly improved the lignin degradation efficiency, which established a promising strategy for lignin degradation and valorization. |
| first_indexed | 2024-12-19T15:43:57Z |
| format | Article |
| id | doaj.art-03a5fcaf53a64955ad257d397b38c2db |
| institution | Directory Open Access Journal |
| issn | 2296-4185 |
| language | English |
| last_indexed | 2024-12-19T15:43:57Z |
| publishDate | 2020-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Bioengineering and Biotechnology |
| spelling | doaj.art-03a5fcaf53a64955ad257d397b38c2db2022-12-21T20:15:23ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852020-03-01810.3389/fbioe.2020.00099497796The Synergistic Action of Electro-Fenton and White-Rot Fungi in the Degradation of LigninLipeng Hou0Dandan Ji1Dandan Ji2Dandan Ji3Weifang Dong4Lin Yuan5Fengshan Zhang6Yan Li7Lihua Zang8College of Environmental Science and Engineering, Qilu University of Technology, Shandong Academy of Science, Jinan, ChinaCollege of Environmental Science and Engineering, Qilu University of Technology, Shandong Academy of Science, Jinan, ChinaHuatai Group Corp. Ltd., Dongying, ChinaJiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi, ChinaCollege of Environmental Science and Engineering, Qilu University of Technology, Shandong Academy of Science, Jinan, ChinaCollege of Environmental Science and Engineering, Qilu University of Technology, Shandong Academy of Science, Jinan, ChinaHuatai Group Corp. Ltd., Dongying, ChinaLangfang Meihua Biotechnology Development Co. Ltd., Langfang, ChinaCollege of Environmental Science and Engineering, Qilu University of Technology, Shandong Academy of Science, Jinan, ChinaWhite-rot fungus is a common lignin-degrading fungus. However, compared with those of microorganisms that biodegrade lignin alone, synergistic systems of electro-Fenton processes and white-rot fungi are superior because of their high efficiency, mild conditions, and environmental friendliness. To investigate the details of lignin degradation by a synergistic system comprising electro-Fenton processes and white-rot fungi, lignin degradation was studied at different voltages with three lignin-degrading fungi (Phanerochaete chrysosporium, Lentinula edodes, and Trametes versicolor). The lignin degradation efficiency (82∼89%) of the synergistic systems at 4 V was higher than that of a control at 96 h post inoculation. Furthermore, the H2O2 produced and phenolic lignin converted in the system can significantly enhance the efficiency of ligninolytic enzymes, so a considerably increased enzyme activity was obtained by the synergistic action of electro-Fenton processes and white-rot fungi. 13C NMR spectroscopy revealed that aromatic structure units (103–162 ppm) were effectively degraded by the three fungi. This study shows that the combination of electro-Fenton processes and white-rot fungi treatment significantly improved the lignin degradation efficiency, which established a promising strategy for lignin degradation and valorization.https://www.frontiersin.org/article/10.3389/fbioe.2020.00099/fullligninelectron-Fentonwhite-rot fungisynergistic systemlignin-degrading enzyme |
| spellingShingle | Lipeng Hou Dandan Ji Dandan Ji Dandan Ji Weifang Dong Lin Yuan Fengshan Zhang Yan Li Lihua Zang The Synergistic Action of Electro-Fenton and White-Rot Fungi in the Degradation of Lignin Frontiers in Bioengineering and Biotechnology lignin electron-Fenton white-rot fungi synergistic system lignin-degrading enzyme |
| title | The Synergistic Action of Electro-Fenton and White-Rot Fungi in the Degradation of Lignin |
| title_full | The Synergistic Action of Electro-Fenton and White-Rot Fungi in the Degradation of Lignin |
| title_fullStr | The Synergistic Action of Electro-Fenton and White-Rot Fungi in the Degradation of Lignin |
| title_full_unstemmed | The Synergistic Action of Electro-Fenton and White-Rot Fungi in the Degradation of Lignin |
| title_short | The Synergistic Action of Electro-Fenton and White-Rot Fungi in the Degradation of Lignin |
| title_sort | synergistic action of electro fenton and white rot fungi in the degradation of lignin |
| topic | lignin electron-Fenton white-rot fungi synergistic system lignin-degrading enzyme |
| url | https://www.frontiersin.org/article/10.3389/fbioe.2020.00099/full |
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