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Wang B, Chen Y, Guan J, Ding Y, He Y, Zhang X, Shukurov N, Romanholo Ferreira LF, Liu J, Zhu M. Biodecolorization and Ecotoxicity Abatement of Disperse Dye-Production Wastewater Treatment with Pycnoporus Laccase. IJERPH 2022; 19:ijerph19137983. [PMID: 35805640 PMCID: PMC9265578 DOI: 10.3390/ijerph19137983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/17/2022] [Accepted: 06/27/2022] [Indexed: 11/16/2022]
Abstract
The biological treatment efficiency of dye wastewater using activated sludge (AS) is largely limited to the chromaticity and ecotoxicity of dyestuff. To alleviate this limitation, eleven industrial-grade disperse dyes were obtained from a fiber-dyeing factory, and for the first time, we studied the decolorization and detoxification effects of using the Pycnoporus laccase enzyme. Efficient decolorization was achieved with the following conditions: dye concentration 50 mg/L, 1-hydroxybenzotriazole (HBT) 0.15 mM, temperature 65 °C, pH 4, and laccase 0.33 U/mL. The decolorization rate of disperse dyes, ranging from 51 to 96% in this investigation, was highly dependent on the dye type, concentration, laccase loading, and HBT. The ecotoxicity of dyes was evaluated by studying the germination/growth of wheat seed as well as the respiratory rate of aerobic AS. Laccase treatment mitigated the phytotoxicity of dyes because of the higher wheat germination (e.g., increase of 38% for Black ECT 200%) and growth rate (e.g., increase of 91% for Blue 2BLN 200%). The reduced ecotoxicity of decolorized dye solution towards microorganisms was also confirmed by the finding that the oxygen uptake by aerobic AS was increased relative to that of the untreated samples (e.g., increase of 14 folds for Blue HGL 200%). In addition, the chemical oxygen demand (COD) of decolorized dye solution was slightly lower than that without decolorization during the respiratory test. The experimental results suggest that enzymatic decolorization and detoxification can be potentially used as a pretreatment method for disperse dye wastewater followed by AS treatment.
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Affiliation(s)
- Bin Wang
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (B.W.); (Y.C.); (J.G.); (Y.D.); (Y.H.); (X.Z.)
| | - Yanjun Chen
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (B.W.); (Y.C.); (J.G.); (Y.D.); (Y.H.); (X.Z.)
| | - Jian Guan
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (B.W.); (Y.C.); (J.G.); (Y.D.); (Y.H.); (X.Z.)
| | - Yiwen Ding
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (B.W.); (Y.C.); (J.G.); (Y.D.); (Y.H.); (X.Z.)
| | - Yide He
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (B.W.); (Y.C.); (J.G.); (Y.D.); (Y.H.); (X.Z.)
| | - Xueying Zhang
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (B.W.); (Y.C.); (J.G.); (Y.D.); (Y.H.); (X.Z.)
| | - Nosir Shukurov
- Institute of Geology and Geophysics, State Committee of the Republic of Uzbekistan on Geology and Mineral Resources 49, Olimlar Street, Tashkent 100041, Uzbekistan;
| | - Luiz Fernando Romanholo Ferreira
- Graduate Program in Process Engineering (PEP), Tiradentes University, Aracaju 49032-490, Brazil;
- Waste and Effluent Treatment Laboratory, Institute of Technology and Research (ITP), Aracaju 49032-490, Brazil
| | - Jiayang Liu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (B.W.); (Y.C.); (J.G.); (Y.D.); (Y.H.); (X.Z.)
- Correspondence: (J.L.); (M.Z.)
| | - Mingxin Zhu
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; (B.W.); (Y.C.); (J.G.); (Y.D.); (Y.H.); (X.Z.)
- Correspondence: (J.L.); (M.Z.)
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González Bautista E, Gutierrez E, Dupuy N, Gaime-Perraud I, Ziarelli F, Farnet da Silva AM. Pre-treatment of a sugarcane bagasse-based substrate prior to saccharification: Effect of coffee pulp and urea on laccase and cellulase activities of Pycnoporus sanguineus. J Environ Manage 2019; 239:178-186. [PMID: 30901696 DOI: 10.1016/j.jenvman.2019.03.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 02/20/2019] [Accepted: 03/06/2019] [Indexed: 06/09/2023]
Abstract
Production of second-generation bioethanol uses lignocellulose from agricultural by-products such as sugarcane bagasse (SCB). A lignocellulose pre-treatment is required to degrade lignin, ensuring further efficient saccharification. Two experimental designs were set up to define culture conditions of Pycnoporus sanguineus in mesocosms to increase laccase activities and thus delignification. The first experimental design tested the effect of phenolic complementation (via coffee pulp) and the use of urea as a simple nitrogen source and the second defined more precisely the percentages of coffee pulp and urea to enhance delignification. The responses measured were: lignocellulolytic activities, laccase isoform profiles by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and the chemical transformation of the substrate using solid-state NMR of 13C. Adding 10% of coffee pulp increased laccase activities and fungal biomass (32.5% and 16% respectively), enhanced two constitutive isoforms (Rf 0.23 and 0.27), induced a new isoform (Rf 0.19) and led to a decrease in total aromatics. However, higher concentrations of coffee pulp (25%) decreased laccase and cellulase activities but no decrease in aromaticity was observed, potentially due to the toxic effect of phenols from coffee pulp. Moreover, laccase production was still inhibited even for lower concentrations of urea (0-5%). Our findings revealed that an agricultural by-product like coffee pulp can enhance laccase activity -though to a threshold- and that urea limited this process, indicating that other N-sources should be tested for the biological delignification of SCB.
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Affiliation(s)
- Enrique González Bautista
- Aix Marseille Université, Avignon Université, CNRS, IRD, IMBE, Marseille, France; Instituto de Biotecnología y Ecología Aplicada (INBIOTECA), Universidad Veracruzana, Campus para la Cultura, las Artes y el Deporte, Av. de las Culturas Veracruzanas No. 101Col. Emiliano Zapata, C.P. 91090, Xalapa, Veracruz, Mexico
| | - Enrique Gutierrez
- Instituto de Biotecnología y Ecología Aplicada (INBIOTECA), Universidad Veracruzana, Campus para la Cultura, las Artes y el Deporte, Av. de las Culturas Veracruzanas No. 101Col. Emiliano Zapata, C.P. 91090, Xalapa, Veracruz, Mexico
| | - Nathalie Dupuy
- Aix Marseille Université, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | | | - Fabio Ziarelli
- Aix Marseille Université, CNRS, Spectropole Campus St Jérôme, Fédération des Sciences Chimiques de Marseille, FR 1739, 13397, Marseille, France
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Metreveli E, Kachlishvili E, Singer SW, Elisashvili V. Alteration of white-rot basidiomycetes cellulase and xylanase activities in the submerged co-cultivation and optimization of enzyme production by Irpex lacteus and Schizophyllum commune. Bioresour Technol 2017; 241:652-660. [PMID: 28609753 DOI: 10.1016/j.biortech.2017.05.148] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/21/2017] [Accepted: 05/23/2017] [Indexed: 06/07/2023]
Abstract
Mono and dual cultures of four white-rot basidiomycete species were evaluated for cellulase and xylanase activity under submerged fermentation conditions. Co-cultivation of Pycnoporus coccineus or Trametes hirsuta with Schizophyllum commune displayed antagonistic interactions resulting in the decrease of endoglucanase and total cellulase activities. In contrast, increases in cellulase and xylanase activity were revealed through the compatible interactions of Irpex lacteus with S. commune. Co-cultivation conditions were optimized for maximum enzyme production by I. lacteus and S. commune, the best producers of cellulase/xylanase and β-glucosidase, respectively. An optimized medium for the target enzyme production by the mixed culture was established in a laboratory fermenter yielding 7U/mL total cellulase, 142U/mL endoglucanase, 104U/mL xylanase, and 5.2U/mL β-glucosidase. The dual culture approach resulted in an enzymatic mixture with 11% improved lignocellulose saccharification potential compared to enzymes from a monoculture of I. lacteus.
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Affiliation(s)
- Eka Metreveli
- Agricultural University of Georgia, 240 David Agmashenebeli alley, 0159 Tbilisi, Georgia
| | - Eva Kachlishvili
- Agricultural University of Georgia, 240 David Agmashenebeli alley, 0159 Tbilisi, Georgia
| | - Steven W Singer
- Joint BioEnergy Institute, Emeryville, CA 94608, USA; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Vladimir Elisashvili
- Agricultural University of Georgia, 240 David Agmashenebeli alley, 0159 Tbilisi, Georgia.
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