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Faheem M, Bokhari SAI, Malik MA, Ahmad B, Riaz M, Zahid N, Hussain A, Ghani A, Ullah H, Shah W, Mehmood R, Ahmad K, Rasheed H, Zain A, Hussain S, Khan A, Yasin MT, Tariq H, Rizwanullah, Basheir MM, Jogezai N. Production, purification, and characterization of p-diphenol oxidase (PDO) enzyme from lignolytic fungal isolate Schizophyllum commune MF-O5. Folia Microbiol (Praha) 2023; 68:867-888. [PMID: 37160524 DOI: 10.1007/s12223-023-01056-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 04/04/2023] [Indexed: 05/11/2023]
Abstract
Fungi are producers of lignolytic extracellular enzymes which are used in industries like textile, detergents, biorefineries, and paper pulping. This study assessed for the production, purification, and characterization of novel p-diphenol oxidase (PDO; laccase) enzyme from lignolytic white-rot fungal isolate. Fungi samples collected from different areas of Pakistan were initially screened using guaiacol plate method. The maximum PDO producing fungal isolate was identified on the basis of ITS (internal transcribed spacer sequence of DNA of ribosomal RNA) sequencing. To get optimum enzyme yield, various growth and fermentation conditions were optimized. Later PDO was purified using ammonium sulfate precipitation, size exclusion, and anion exchange chromatography and characterized. It was observed that the maximum PDO producing fungal isolate was Schizophyllum commune (MF-O5). Characterization results showed that the purified PDO was a monomeric protein with a molecular mass of 68 kDa and showed stability at lower temperature (30 °C) for 1 h. The Km and Vmax values of the purified PDO recorded were 2.48 mM and 6.20 U/min. Thermal stability results showed that at 30 °C PDO had 119.17 kJ/K/mol Ea value and 33.64 min half-life. The PDO activity was stimulated by Cu2+ ion at 1.0 mM showing enhanced activity up to 111.04%. Strong inhibition effect was noted for Fe2+ ions at 1 mM showing 12.04% activity. The enzyme showed stability against 10 mM concentration oxidizing reducing agents like DMSO, EDTA, H2O2, NaOCl, and urea and retained more than 75% of relative activity. The characterization of purified PDO enzyme confirmed its tolerance against salt, metal ions, organic solvents, and surfactants indicating its ability to be used in the versatile commercial applications.
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Affiliation(s)
- Muhammad Faheem
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan.
| | - Syed Ali Imran Bokhari
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Muhammad Arshad Malik
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Bashir Ahmad
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Muhammad Riaz
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Nafeesa Zahid
- Department of Botany, Mirpur University of Science and Technology (MUST), Mirpur, Azad Kashmir, 10250, Pakistan
| | - Adil Hussain
- Food and Biotechnology Research Centre, Pakistan, Council of Scientific and Industrial Research (PCSIR), Laboratories Complex , Ferozepur Road, Lahore, 54600, Pakistan
| | - Abdul Ghani
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Hanif Ullah
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Waseem Shah
- Department of Biosciences, Comsats University, Islamabad, 45550, Pakistan
| | - Rashid Mehmood
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Khurshid Ahmad
- College of Food Sciences and Engineering, Ocean University of China, Shandong Province, 266003, Qingdao, China
| | - Hassam Rasheed
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Ali Zain
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Saddam Hussain
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Abrar Khan
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Muhammad Talha Yasin
- Insititute of Biological Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, 64200, Pakistan
| | - Hasnat Tariq
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Rizwanullah
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
| | - Muhammad Mudassir Basheir
- Department of Biological Sciences, Faculty of Basic and Applied Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan
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Chaoua S, Chaouche NK, Songulashvili G, Gares M, Hiligsmann S, Flahaut S. Yellow laccase produced by Trametes versicolor K1 on tomato waste: A comparative study with the blue one produced on semi-synthetic medium. J Biotechnol 2023; 361:99-109. [PMID: 36509383 DOI: 10.1016/j.jbiotec.2022.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/30/2022] [Accepted: 12/03/2022] [Indexed: 12/13/2022]
Abstract
Laccase production by fungal growth on agrifood waste is still poorly studied. Trametes versicolor K1 isolated from palm bark produced a yellow non glycosylated laccase from tomato waste based medium (TMT) and a blue glycosylated laccase on glucose medium (GLU). Lignocellulosic biomass, such as pinecones (PIN), palm leaves (PLM), olive pomace (OLV), and alfa stems (ALF) have also been used as growth medium for T. versicolor K1. In these conditions, very low or no laccase production was observed. When peptone was supplied in TMT medium, the laccase activity increased from 4170 U/L to 8618 U/L. By increasing the culture volume up to 1 L, laccase production on TMT was 9929 U/L. The yellow laccase (TmtLac) was purified from the supernatant TMT medium and has shown similar characteristics with the blue laccase (GluLac) purified from the GLU medium. Their apparent protein size was 63 kDa. Catalytic activities of the yellow form were not very different from those of the blue form, but specific activity of the purified yellow laccase produced on tomato waste was much higher. The Km and Vm values for four substrates, ABTS, DMP, guaiacol, and pyrogallol were almost similar for both isoenzymes. The optimum pH and temperature were respectively 4.0 and 50 °C. Although the level of glycosylation is clearly different, the thermostability of TmtLac and GluLac are quite similar. TmtLac is even slightly more tolerant at 60 °C for 24 h than GluLac. Moreover TmtLac showed greater stability at alkaline pH after 24 h compared to that of GluLac.We demonstrate that activity of the yellow TmtLac is not significantly affected compared to the blue laccase and that tomato waste is a simple and interesting lignocellulosic substrate to the laccase producer Trametes sp.
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Affiliation(s)
- Samah Chaoua
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri Constantine 1, Constantine, Algeria; Laboratoire de Microbiologie Appliquée, Université Libre de Bruxelles, Brussels, Belgium.
| | - Noreddine Kacem Chaouche
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri Constantine 1, Constantine, Algeria
| | - George Songulashvili
- Laboratoire de Microbiologie Appliquée, Université Libre de Bruxelles, Brussels, Belgium
| | - Maroua Gares
- Laboratoire de Mycologie, de Biotechnologie et de l'Activité Microbienne (LaMyBAM), Département de Biologie Appliquée, Université des Frères Mentouri Constantine 1, Constantine, Algeria
| | - Serge Hiligsmann
- Bioengineering Department, CELABOR Research Center, Herve, Belgium
| | - Sigrid Flahaut
- Laboratoire de Microbiologie Appliquée, Université Libre de Bruxelles, Brussels, Belgium
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Gou Z, Hopla GA, Yao M, Cui B, Su Y, Rinklebe J, Sun C, Chen G, Ma NL, Sun Y. Removal of dye pollution by an oxidase derived from mutagenesis of the Deuteromycete Myrothecium with high potential in industrial applications. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 310:119726. [PMID: 35810983 DOI: 10.1016/j.envpol.2022.119726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/19/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
It is estimated that over 700,000 tons of synthetic dyes are produced annually, 15% of which are emitted as effluents. These highly stable dyes enter the world water ecosystems and stay in the environment, and eventually cause adverse impacts to the environment. Current wastewater treatment methods, such as filtration, coagulation, and chemical oxidation, have sideeffects, including toxic residue formation, membrane fouling, bioaccumulation, and secondary pollutant formation. Given the issues mentioned, it is necessary to study how to improve the degradation of synthetic dye with a cost-effective and ecofriendly approach. Natural oxidation provides a greener option. Recently, Deuteromycetes fungus Myrothecium verrucaria G-1 (M. verrucaria G-1) has shown great potential in producing high level of dye oxidase. This study aims to generate a dye oxidase hyperproducer, 3H6 from M. verrucaria G-1 by using atmospheric and room temperature plasma (ARTP) coupled with ultraviolet (UV) irradiation. This method increases oxidase production by nearly 106.15%. After a simple precipitation and dialysis, this mutant oxidase increases by 1.97-fold in a specific activity with dye degradation rates at 70% for Mmethylene blue (MB) and 85% for Congo red (CR). It is found that the genetic stability of 3H6 remains active for ten generations. The size of oxidase is 65 kDa, and optimum temperature for reaction is 30 °C with 4.5 pH. This study presents that the first combined mutagenesis approach by ARPT-UV on fungus species generates an impressive increment of acid dye oxidases production. As such, this method presents a cost-effective alternative to mitigate hazardous dye pollution.
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Affiliation(s)
- Zechang Gou
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, The Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China; Straw Biological Conversion and Agricultural Utilization Engineering Research Center of Jilin Province, China
| | - Gabriel Akwakwa Hopla
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, The Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Mingyue Yao
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, The Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Bintao Cui
- School of Science, RMIT University of Australia, Australia
| | - Yingjie Su
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, The Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China; Straw Biological Conversion and Agricultural Utilization Engineering Research Center of Jilin Province, China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste Management, Laboratory of Soil and Groundwater Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Guangjin-Gu, Seoul, Republic of Korea
| | - Chunyu Sun
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, The Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Guang Chen
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, The Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China
| | - Nyuk Ling Ma
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Malaysia
| | - Yang Sun
- Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, The Ministry of Education, College of Life Science, Jilin Agricultural University, Changchun, 130118, Jilin, China; Straw Biological Conversion and Agricultural Utilization Engineering Research Center of Jilin Province, China.
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Cen Q, Wu X, Cao L, Lu Y, Lu X, Chen J, Fu G, Liu Y, Ruan R. Green production of a yellow laccase by Coriolopsis gallica for phenolic pollutants removal. AMB Express 2022; 12:96. [PMID: 35841420 PMCID: PMC9288578 DOI: 10.1186/s13568-022-01434-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 07/05/2022] [Indexed: 11/12/2022] Open
Abstract
As a group of green biocatalysts, fungal laccases have aroused great interest in diverse biotechnological fields. Therein, yellow laccase has advantages over blue laccase in catalytic performance, but it is not common in the reported fungal laccases. Here, we report a yellow laccase from white-rot fungus Coriolopsis gallica NCULAC F1 about its production, purification, characterization, and application. Laccase production in the co-fermentation of pomelo peel and wheat bran reached the enzyme activity by 10,690 U/L after 5 days with a 13.58-time increase. After three steps of purification, laccase increased the specific activity from 30.78 to 188.79 U/mg protein with an activity recovery of 45.64%. The purified C. gallica laccase (CGLac) showed a molecular mass of about 57 kDa. CGLac had a yellow color and no absorption peaks at 610 nm and 330 nm, suggesting that it’s a yellow laccase. CGLac exhibited stability towards temperature (40–60 °C) and neutral pH (6.0–8.0). Fe3+ and Mn2+ strongly stimulated CGLac activity by 162.56% and 226.05%, respectively. CGLac remained high activities when exposed to organic reagents and putative inhibitors. Additionally, CGLac contributed to 90.78%, 93.26%, and 99.66% removal of phenol, p-chlorophenol and bisphenol A after 120 min, respectively. In conclusion, a green efficient production strategy was introduced for fungal laccase, and the obtained CGLac presented great enzymatic properties and catalytic potential in the removal of phenolic pollutants. Pomelo peels and wheat bran are great nutritional sources and laccase inducers. CGLac showed the spectral characteristic of yellow laccase. CGLac had great stability and catalytic ability for phenolic pollutants removal.
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Affiliation(s)
- Qingjing Cen
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Xiaodan Wu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China. .,International Institute of Food Innovation, Nanchang University, Nanchang, 330047, Jiangxi, China.
| | - Leipeng Cao
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Yanjuan Lu
- Beijing Fairyland Environmental Technology CO., LTD, Beijing, 100096, China
| | - Xuan Lu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Jianwen Chen
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Guiming Fu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China.,International Institute of Food Innovation, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Yuhuan Liu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Roger Ruan
- Department of Bioproducts and Biosystems Engineering, Center for Biorefining, University of Minnesota, St. Paul, MN, 55108, USA
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Ben Ayed A, Hadrich B, Sciara G, Lomascolo A, Bertrand E, Faulds CB, Zouari-Mechichi H, Record E, Mechichi T. Optimization of the Decolorization of the Reactive Black 5 by a Laccase-like Active Cell-Free Supernatant from Coriolopsis gallica. Microorganisms 2022; 10:microorganisms10061137. [PMID: 35744655 PMCID: PMC9227205 DOI: 10.3390/microorganisms10061137] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 02/05/2023] Open
Abstract
The textile industry generates huge volumes of colored wastewater that require multiple treatments to remove persistent toxic and carcinogenic dyes. Here we studied the decolorization of a recalcitrant azo dye, Reactive Black 5, using laccase-like active cell-free supernatant from Coriolopsis gallica. Decolorization was optimized in a 1 mL reaction mixture using the response surface methodology (RSM) to test the influence of five variables, i.e., laccase-like activity, dye concentration, redox mediator (HBT) concentration, pH, and temperature, on dye decolorization. Statistical tests were used to determine regression coefficients and the quality of the models used, as well as significant factors and/or factor interactions. Maximum decolorization was achieved at 120 min (82 ± 0.6%) with the optimized protocol, i.e., laccase-like activity at 0.5 U mL−1, dye at 25 mg L−1, HBT at 4.5 mM, pH at 4.2 and temperature at 55 °C. The model proved significant (ANOVA test with p < 0.001): coefficient of determination (R²) was 89.78%, adjusted coefficient of determination (R²A) was 87.85%, and root mean square error (RMSE) was 10.48%. The reaction conditions yielding maximum decolorization were tested in a larger volume of 500 mL reaction mixture. Under these conditions, the decolorization rate reached 77.6 ± 0.4%, which was in good agreement with the value found on the 1 mL scale. RB5 decolorization was further evaluated using the UV-visible spectra of the treated and untreated dyes.
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Affiliation(s)
- Amal Ben Ayed
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, Ecole Nationale d’Ingénieurs de Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia;
- UMR1163, Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRAE, 13288 Marseille, France; (G.S.); (A.L.); (E.B.); (C.B.F.); (E.R.)
- Correspondence: (A.B.A.); (T.M.)
| | - Bilel Hadrich
- Laboratory of Enzyme Engineering and Microbiology, Ecole Nationale d’Ingénieurs de Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia;
| | - Giuliano Sciara
- UMR1163, Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRAE, 13288 Marseille, France; (G.S.); (A.L.); (E.B.); (C.B.F.); (E.R.)
| | - Anne Lomascolo
- UMR1163, Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRAE, 13288 Marseille, France; (G.S.); (A.L.); (E.B.); (C.B.F.); (E.R.)
| | - Emmanuel Bertrand
- UMR1163, Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRAE, 13288 Marseille, France; (G.S.); (A.L.); (E.B.); (C.B.F.); (E.R.)
| | - Craig B. Faulds
- UMR1163, Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRAE, 13288 Marseille, France; (G.S.); (A.L.); (E.B.); (C.B.F.); (E.R.)
| | - Héla Zouari-Mechichi
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, Ecole Nationale d’Ingénieurs de Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia;
| | - Eric Record
- UMR1163, Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRAE, 13288 Marseille, France; (G.S.); (A.L.); (E.B.); (C.B.F.); (E.R.)
| | - Tahar Mechichi
- Laboratory of Biochemistry and Enzymatic Engineering of Lipases, Ecole Nationale d’Ingénieurs de Sfax (ENIS), University of Sfax, Sfax 3038, Tunisia;
- Correspondence: (A.B.A.); (T.M.)
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Nayak B, Choudhary R. Optimization, purification and characterization of laccase from lignocellulolytic fungi Dichotomopilus funicola NFCCI 4534 and Alternaria padwickii NFCCI 4535. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Isolation and Characterization of a Novel Laccase for Lignin Degradation, LacZ1. Appl Environ Microbiol 2021; 87:e0135521. [PMID: 34524901 DOI: 10.1128/aem.01355-21] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Lignin is a complex natural organic polymer and is one of the primary components of lignocellulose. The efficient utilization of lignocellulose is limited because it is difficult to degrade lignin. In this study, we screened a lacz1 gene fragment encoding laccase from the macrotranscriptome data of a microbial consortium WSC-6, which can efficiently degrade lignocellulose. The reverse transcription-quantitative PCR (RT-qPCR) results demonstrated that the expression level of the lacz1 gene during the peak period of lignocellulose degradation by WSC-6 increased by 30.63 times compared to the initial degradation period. Phylogenetic tree analysis demonstrated that the complete lacz1 gene is derived from a Bacillus sp. and encoded laccase. The corresponding protein, LacZ1, was expressed and purified by Ni-chelating affinity chromatography. The optimum temperature was 75°C, the optimum pH was 4.5, and the highest enzyme activity reached 16.39 U/mg. We found that Cu2+ was an important cofactor needed for LacZ1 to have enzyme activity. The molecular weight distribution of lignin was determined by gel permeation chromatography (GPC), and changes in the lignin structure were determined by 1H nuclear magnetic resonance (1H NMR) spectra. The degradation products of lignin by LacZ1 were determined by gas chromatography and mass spectrometry (GC-MS), and three lignin degradation pathways (the gentian acid pathway, benzoic acid pathway, and protocatechuic acid pathway) were proposed. This study provides insight into the degradation of lignin and new insights into high-temperature bacterial laccase. IMPORTANCE Lignin is a natural aromatic polymer that is not easily degraded, hindering the efficient use of lignocellulose-rich biomass resources, such as straw. Biodegradation is a method of decomposing lignin that has recently received increasing attention. In this study, we screened a gene encoding laccase from the lignocellulose-degrading microbial consortium WSC-6, purified the corresponding protein LacZ1, characterized the enzymatic properties of laccase LacZ1, and speculated that the degradation pathway of LacZ1 degrades lignin. This study identified a new, high-temperature bacterial laccase that can degrade lignin, providing insight into lignin degradation by this laccase.
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Debnath R, Saha T. An insight into the production strategies and applications of the ligninolytic enzyme laccase from bacteria and fungi. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101645] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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9
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Akpinar M, Urek RO. Purification, Biochemical Characterization and Decolorization Efficiency of Laccases from Peach and Cherry Cultures of Pleutorus eryngii: A Comparative Study. Protein Pept Lett 2019; 27:623-634. [PMID: 31721687 DOI: 10.2174/0929866526666191112145521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/14/2019] [Accepted: 10/21/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Laccases (Lacs) are used potentially in industrial and biotechnological applications such as decolorization of dyes, degradation of industrial effluents, delignification, etc. thanks to their large varieties of substrate specificities and excellent catalytic efficiencies. The efficient utilizations of Lacs in these applications mostly depend on the identifying their biochemical properties. OBJECTIVE The goal of this research is to investigate the purification, biochemical characterization and decolorization efficiencies of Lacs. METHODS Pleurotus eryngii was incubated on peach (PC) and cherry (CC) wastes under optimized solid state fermentation conditions. Then, the enzymes extracts were purified by ammonium sulfate precipitation, anion exchange chromatography, gel filtration, respectively. Lacs fractions were subjected to electrophoretic analyses as well as their structural and kinetic characteristics. Also, the effects of selected chemical agents on purified Lacs activities and determination of decolorization efficiencies were studied. RESULTS As the results of purification processes of Lacs from both cultures, 3.94-fold purification was obtained for PC, while it was 5.34 for CC. The electrophoretic results of purified Lacs illustrated the single bands of protein (30±1 kDa) in accordance with the results after gel filtration. The Km values of Lacs from PC and CC were respectively detected as 1.1381 and 0.329 mM for ABTS. The selected agents partially/completely inhibited Lac activities. The highest decolorization efficiencies of purified Lacs from PC and CC were separately obtained as 53 and 11.8%. CONCLUSION The results clearly indicated that the performances of Lacs from both cultures in decolorization application are different from each other depending their activities, biochemical and kinetic characteristics.
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Affiliation(s)
- Merve Akpinar
- Chemistry Department, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, Buca-Izmir, Turkey
| | - Raziye Ozturk Urek
- Chemistry Department, Biochemistry Division, Faculty of Science, Dokuz Eylül University, Buca-Izmir, Turkey
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Zaccaria S, Boff NA, Bettin F, Dillon AJP. Use of micro- and ultrafiltration membranes for concentration of laccase-rich enzymatic extract of Pleurotus sajor-caju PS-2001 and application in dye decolorization. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00845-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ding C, Wang X, Li M. Evaluation of six white-rot fungal pretreatments on corn stover for the production of cellulolytic and ligninolytic enzymes, reducing sugars, and ethanol. Appl Microbiol Biotechnol 2019; 103:5641-5652. [DOI: 10.1007/s00253-019-09884-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/12/2019] [Accepted: 04/29/2019] [Indexed: 11/24/2022]
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12
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Chaurasia SK, Bhardwaj NK. Biobleaching - An ecofriendly and environmental benign pulp bleaching technique: A review. J Carbohydr Chem 2019. [DOI: 10.1080/07328303.2019.1581888] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Nishi K. Bhardwaj
- Avantha Centre for Industrial Research and Development, Yamuna Nagar, Haryana, India
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Process optimization, purification and characterization of alkaline stable white laccase from Myrothecium verrucaria ITCC-8447 and its application in delignification of agroresidues. Int J Biol Macromol 2019; 125:1042-1055. [DOI: 10.1016/j.ijbiomac.2018.12.108] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 11/20/2022]
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Mtibaà R, Barriuso J, de Eugenio L, Aranda E, Belbahri L, Nasri M, Martínez MJ, Mechichi T. Purification and characterization of a fungal laccase from the ascomycete Thielavia sp. and its role in the decolorization of a recalcitrant dye. Int J Biol Macromol 2018; 120:1744-1751. [PMID: 30268749 DOI: 10.1016/j.ijbiomac.2018.09.175] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/20/2018] [Accepted: 09/26/2018] [Indexed: 01/25/2023]
Abstract
A laccase-producing ascomycete was isolated from arid soil in Tunisia. This fungus was identified as Thielavia sp. using the phylogenetic analysis of rDNA internal transcribed spacers. The extracellular laccase produced by the fungus was purified to electrophoretic homogeneity, showing a molecular mass around 70 kDa. The enzyme had an optimum pH of 5.0 and 6.0 for ABTS and 2,6‑DMP, respectively and it showed remarkable high thermal stability, showing its optimal temperature at 70 °C (against 2,6‑DMP). It presented slight inhibiting effect by EDTA, SDS and l‑cyst although this effect was more marked by sodium azide (0.1 mM). On the other hand, it showed tolerance to up to 300 mM NaCl, retaining around 50% of its activity at 900 mM. Among the metal ions tested on TaLac1, Mn2+ showed an activating effect. Their kinetic parameters Km and kcat were 23.7 μM and 4.14 s-1 for ABTS, and 24.3 μM and 3.46 s-1 towards 2,6‑DMP. The purified enzyme displayed greater efficiency in Remazol Brilliant Blue R decolorization (90%) in absence of redox mediator, an important property for biotechnological applications.
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Affiliation(s)
- Rim Mtibaà
- Laboratory of Enzyme Engineering and Microbiology, University of Sfax, National School of Engineers of Sfax, BP «1173», 3038 Sfax, Tunisia.
| | - Jorge Barriuso
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Cientίficas, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Laura de Eugenio
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Cientίficas, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Elisabet Aranda
- Department of Microbiology, Institute of Water Research, University of Granada, Calle Ramón y Cajal 4, E-18071 Granada, Spain
| | - Lasaad Belbahri
- Laboratory of Soil Biology, University of Neuchâtel, Rue Emile Argand 11, CH-2009 Neuchâtel, Switzerland
| | - Moncef Nasri
- Laboratory of Enzyme Engineering and Microbiology, University of Sfax, National School of Engineers of Sfax, BP «1173», 3038 Sfax, Tunisia
| | - María Jesùs Martínez
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Cientίficas, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Tahar Mechichi
- Laboratory of Enzyme Engineering and Microbiology, University of Sfax, National School of Engineers of Sfax, BP «1173», 3038 Sfax, Tunisia
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Agrawal K, Chaturvedi V, Verma P. Fungal laccase discovered but yet undiscovered. BIORESOUR BIOPROCESS 2018. [DOI: 10.1186/s40643-018-0190-z] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Zheng F, An Q, Meng G, Wu XJ, Dai YC, Si J, Cui BK. A novel laccase from white rot fungus Trametes orientalis : Purification, characterization, and application. Int J Biol Macromol 2017; 102:758-770. [DOI: 10.1016/j.ijbiomac.2017.04.089] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 04/21/2017] [Accepted: 04/24/2017] [Indexed: 10/19/2022]
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High-level production and characterization of laccase from a newly isolated fungus Trametes sp. LS-10C. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2016.10.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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