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Wang L, Liang H, Du X, Chen G, Lai W, Liu Y, Li M, Gao D. Enzymatic bioremediation of polycyclic aromatic hydrocarbons (PAHs) in contaminated soil: a study on the recombinant laccase TVL. ENVIRONMENTAL TECHNOLOGY 2024:1-10. [PMID: 39267328 DOI: 10.1080/09593330.2024.2381644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 07/09/2024] [Indexed: 09/17/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are pervasive and persistent pollutants in contaminated soil, posing a severe health and environmental threat. Enzymatic bioremediation presents a viable solution for the remediation of PAH-contaminated soil. In this study, a recombinant laccase with the encoding gene originating from Trametes villosa and recombinantly expressed in Aspergillus oryzae, designated as TVL, was discovered to possess strong PAH reduction capabilities. The specific enzyme activity of TVL was 73485 and 5102 LAMU/g enzyme protein at pH 5.0/7.0 and 37°C. Furthermore, it exhibited significant benzo[a]pyrene degradation, with 100% and 90.48% degradation at pH 5.0/7.0 after 24 h in the liquid phase. The degradation process of benzo[a]pyrene in soil was thoroughly investigated. Optimal conditions were identified as 15 mg/g NK-BSoil-3 and 1.35 mg/g HBT, resulting in a removal rate of 37.54% within 7 days when 0.01 U/g of TVL was applied. The potential mechanisms were investigated using molecular docking simulation. The binding energy between benzo[a]pyrene and TVL protein is notably robust, suggesting a higher propensity for enzyme binding. The TVL protein pocket contains nine amino acids that can interact most strongly with benzo[a]pyrene. Consequently, the recombinant laccase TVL holds considerable practical significance in bioremediation.
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Affiliation(s)
- Litao Wang
- Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
- Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
- The College of Forestry, Beijing Forestry University, Beijing, People's Republic of China
| | - Hong Liang
- Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
- Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Xuran Du
- Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
- Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Guanyu Chen
- Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
- Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
| | - Weijian Lai
- Novozymes (China) Investment Co. Ltd, Beijing, People's Republic of China
| | - Ye Liu
- Novozymes (China) Investment Co. Ltd, Beijing, People's Republic of China
| | - Ming Li
- Novozymes (China) Investment Co. Ltd, Beijing, People's Republic of China
| | - Dawen Gao
- Centre for Urban Environmental Remediation, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
- Beijing Energy Conservation & Sustainable Urban and Rural Development Provincial and Ministry Co-construction Collaboration Innovation Center, Beijing University of Civil Engineering and Architecture, Beijing, People's Republic of China
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Yamaguchi H, Miyazaki M. Bioremediation of Hazardous Pollutants Using Enzyme-Immobilized Reactors. Molecules 2024; 29:2021. [PMID: 38731512 PMCID: PMC11085290 DOI: 10.3390/molecules29092021] [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: 03/30/2024] [Revised: 04/19/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Bioremediation uses the degradation abilities of microorganisms and other organisms to remove harmful pollutants that pollute the natural environment, helping return it to a natural state that is free of harmful substances. Organism-derived enzymes can degrade and eliminate a variety of pollutants and transform them into non-toxic forms; as such, they are expected to be used in bioremediation. However, since enzymes are proteins, the low operational stability and catalytic efficiency of free enzyme-based degradation systems need improvement. Enzyme immobilization methods are often used to overcome these challenges. Several enzyme immobilization methods have been applied to improve operational stability and reduce remediation costs. Herein, we review recent advancements in immobilized enzymes for bioremediation and summarize the methods for preparing immobilized enzymes for use as catalysts and in pollutant degradation systems. Additionally, the advantages, limitations, and future perspectives of immobilized enzymes in bioremediation are discussed.
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Affiliation(s)
- Hiroshi Yamaguchi
- Department of Food and Life Science, School of Agriculture, Tokai University, 871-12 Sugido, Mashiki, Kamimashiki, Kumamoto 861-2205, Japan
- Graduate School of Agriculture, Tokai University, 871-12 Sugido, Mashiki, Kamimashiki, Kumamoto 861-2205, Japan
- Graduate School of Bioscience, Tokai University, 871-12 Sugido, Mashiki, Kamimashiki, Kumamoto 861-2205, Japan
| | - Masaya Miyazaki
- HaKaL Inc., Kurume Research Park, 1488-4 Aikawa, Kurume, Fukuoka 839-0864, Japan;
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Pandey S, Gupta S. Exploring laccase: a sustainable enzymatic solution for the paper recycling domain. Arch Microbiol 2024; 206:211. [PMID: 38602547 DOI: 10.1007/s00203-024-03927-3] [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: 12/31/2023] [Revised: 03/03/2024] [Accepted: 03/08/2024] [Indexed: 04/12/2024]
Abstract
The global advocacy of resource conservation and waste management emphasizes the significance of sustainable practices, particularly in sectors such as paper manufacturing and recycling. Currently, conventional chemical methods are predominant for paper production, necessitating the use of substantial amount of toxic chemicals. This chemical-intensive approach compromises the recycled fiber quality, generates hazardous effluent causing serious ecological threats which triggers regulatory complexities for the mills. To address these challenges modern research suggests adopting sustainable eco-friendly practices such as employing enzymes. This review aims to explore the applicability of 'laccase' enzyme for paper recycling, investigating its properties and contribution to improved recycling practices. By delving into the potential application of laccase integration into the papermaking process, this article sheds light on the limitations inherent in traditional methods surmounted within both research and translational landscapes. Culture and process optimization studies, supporting the technological improvements and the future prospects have been documented.
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Affiliation(s)
- Sheetal Pandey
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Tonk, Newai, Rajasthan, 304022, India
| | - Sarika Gupta
- Department of Bioscience and Biotechnology, Banasthali Vidyapith, Tonk, Newai, Rajasthan, 304022, India.
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Rahman MU, Ullah MW, Shah JA, Sethupathy S, Bilal H, Abdikakharovich SA, Khan AU, Khan KA, Elboughdiri N, Zhu D. Harnessing the power of bacterial laccases for xenobiotic degradation in water: A 10-year overview. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170498. [PMID: 38307266 DOI: 10.1016/j.scitotenv.2024.170498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/10/2023] [Accepted: 01/25/2024] [Indexed: 02/04/2024]
Abstract
Industrialization and population growth are leading to the production of significant amounts of sewage containing hazardous xenobiotic compounds. These compounds pose a threat to human and animal health, as well as the overall ecosystem. To combat this issue, chemical, physical, and biological techniques have been used to remove these contaminants from water bodies affected by human activity. Biotechnological methods have proven effective in utilizing microorganisms and enzymes, particularly laccases, to address this problem. Laccases possess versatile enzymatic characteristics and have shown promise in degrading different xenobiotic compounds found in municipal, industrial, and medical wastewater. Both free enzymes and crude enzyme extracts have demonstrated success in the biotransformation of these compounds. Despite these advancements, the widespread use of laccases for bioremediation and wastewater treatment faces challenges due to the complex composition, high salt concentration, and extreme pH often present in contaminated media. These factors negatively impact protein stability, recovery, and recycling processes, hindering their large-scale application. These issues can be addressed by focusing on large-scale production, resolving operation problems, and utilizing cutting-edge genetic and protein engineering techniques. Additionally, finding novel sources of laccases, understanding their biochemical properties, enhancing their catalytic activity and thermostability, and improving their production processes are crucial steps towards overcoming these limitations. By doing so, enzyme-based biological degradation processes can be improved, resulting in more efficient removal of xenobiotics from water systems. This review summarizes the latest research on bacterial laccases over the past decade. It covers the advancements in identifying their structures, characterizing their biochemical properties, exploring their modes of action, and discovering their potential applications in the biotransformation and bioremediation of xenobiotic pollutants commonly present in water sources.
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Affiliation(s)
- Mujeeb Ur Rahman
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Muhammad Wajid Ullah
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Junaid Ali Shah
- College of Life Sciences, Jilin University, Changchun 130012, PR China; Fergana Medical Institute of Public Health Uzbekistan, Fergana 150110, Uzbekistan
| | - Sivasamy Sethupathy
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Hazart Bilal
- Department of Dermatology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, PR China
| | | | - Afaq Ullah Khan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Khalid Ali Khan
- Applied College, Mahala Campus and the Unit of Bee Research and Honey Production/Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Noureddine Elboughdiri
- Chemical Engineering Department, College of Engineering, University of Ha'il, Ha'il 81441, Saudi Arabia; Chemical Engineering Process Department, National School of Engineers Gabes, University of Gabes, Gabes 6029, Tunisia
| | - Daochen Zhu
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, PR China.
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Bucchieri D, Mangiagalli M, Martani F, Butti P, Lotti M, Serra I, Branduardi P. A novel laccase from Trametes polyzona with high performance in the decolorization of textile dyes. AMB Express 2024; 14:32. [PMID: 38506984 PMCID: PMC10954600 DOI: 10.1186/s13568-024-01687-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 03/04/2024] [Indexed: 03/22/2024] Open
Abstract
Laccases are multicopper oxidases able to oxidize several phenolic compounds and find application in numerous industrial applications. Among laccase producers, white-rot fungi represent a valuable source of multiple isoforms and isoenzymes of these multicopper oxidases. Here we describe the identification, biochemical characterization, and application of laccase 2 from Trametes polyzona (TP-Lac2), a basidiomycete fungus emerged among others that have been screened by plate assay. This enzyme has an optimal temperature of 50 °C and in acidic conditions it is able to oxidize both phenolic and non-phenolic compounds. The ability of TP-Lac2 to decolorize textile dyes was tested in the presence of natural and synthetic mediators at 30 °C and 50 °C. Our results indicate that TP-Lac2 most efficiently decolorizes (decolorization rate > 75%) malachite green oxalate, orange G, amido black10B and bromocresol purple in the presence of acetosyringone and 2,2'-azinobis (3-ethylbenzthiazoline-6-sulfonate)-ABTS. Overall, the laccase mediator system consisting of TP-Lac2 and the natural mediator acetosyringone has potential as an environmentally friendly alternative for wastewater treatment in the textile industry.
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Affiliation(s)
- Daniela Bucchieri
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza Della Scienza 2, 20126, Milano, Italy
- Department of Material Science and Nanotechnology, CORIMAV Program, University of Milano-Bicocca, Via R. Cozzi 55, 20125, Milano, Italy
| | - Marco Mangiagalli
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza Della Scienza 2, 20126, Milano, Italy
| | - Francesca Martani
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza Della Scienza 2, 20126, Milano, Italy
| | - Pietro Butti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza Della Scienza 2, 20126, Milano, Italy
| | - Marina Lotti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza Della Scienza 2, 20126, Milano, Italy
| | - Immacolata Serra
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza Della Scienza 2, 20126, Milano, Italy.
| | - Paola Branduardi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza Della Scienza 2, 20126, Milano, Italy
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Sharghi S, Ahmadi FS, Kakhki AM, Farsi M. Copper increases laccase gene transcription and extracellular laccase activity in Pleurotus eryngii KS004. Braz J Microbiol 2024; 55:111-116. [PMID: 38231377 PMCID: PMC10920597 DOI: 10.1007/s42770-024-01257-6] [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: 09/30/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024] Open
Abstract
The white-rot fungus Pleurotus eryngii secretes various laccases involved in the degradation of a wide range of chemical compounds. Since the laccase production is relatively low in fungi, many efforts have been focused on finding ways to increase it, so in this study, we investigated the effect of copper on the transcription of the pel3 laccase gene and extracellular laccase activity. The results indicate that adding 0.5 to 2 mM copper to liquid cultures of P. eryngii KS004 increased both pel3 gene transcription and extracellular laccase activity in a concentration-dependent manner. The most significant increase in enzyme activity occurred at 1 mM Cu2+, where the peak activity was 4.6 times higher than in control flasks. Copper also induced the transcription of the laccase gene pel3. The addition of 1.5 and 2 mM Cu2+ to fungal culture media elevated pel3 transcript levels to more than 13-fold, although the rate of induction slowed down at Cu2+ concentrations higher than 1.5 mM. Our findings suggest that copper acts as an inducer in the regulation of laccase gene expression in P. eryngii KS004. Despite its inhibitory effect on fungal growth, supplementing cultures with copper can lead to an increased extracellular laccase production in P. eryngii.
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Affiliation(s)
- Sara Sharghi
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Farajollah Shahriari Ahmadi
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Amin Mirshamsi Kakhki
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Farsi
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
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Psurtseva NV, Kiyashko AA, Senik SV, Shakhova NV, Belova NV. The Conservation and Study of Macromycetes in the Komarov Botanical Institute Basidiomycetes Culture Collection-Their Taxonomical Diversity and Biotechnological Prospects. J Fungi (Basel) 2023; 9:1196. [PMID: 38132796 PMCID: PMC10744906 DOI: 10.3390/jof9121196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
Culture collections (CCs) play an important role in the ex situ conservation of biological material and maintaining species and strains, which can be used for scientific and practical purposes. The Komarov Botanical Institute Basidiomycetes Culture Collection (LE-BIN) preserves a large number of original dikaryon strains of various taxonomical and ecological groups of fungi from different geographical regions. Started in the late 1950s for the investigation of Basidiomycetes' biological activity, today, in Russia, it has become a unique specialized macromycetes collection, preserving 3680 strains from 776 species of fungi. The Collection's development is aimed at ex situ conservation of fungal diversity, with an emphasis on preserving rare and endangered species, ectomycorrhizal fungi, and strains useful for biotechnology and medicine. The main methods applied in the collection for maintaining and working with cultures are described, and the results are presented. Some problems for the isolation and cultivation of species are discussed. The taxonomical structure and variety of the strains in the collection fund are analyzed, and they show that the taxonomical diversity of fungi in the LE-BIN is commensurable with the largest CCs in the world. The achievements from the ex situ conservation of the diversity of macromycetes and the main results from the screening and investigation of the collection's strains demonstrate that a number of strains can be prospective producers of enzymes (oxidoreductases and proteases), lipids, and biologically active compounds (terpenoids, phthalides, etc.) for biotechnology and medicine.
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Affiliation(s)
- Nadezhda V. Psurtseva
- Komarov Botanical Institute of the Russian Academy of Sciences, 197376 St. Petersburg, Russia; (A.A.K.); (S.V.S.); (N.V.S.); (N.V.B.)
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Nurul-Aliyaa YA, Awang NA, Mohd MH. Characterization of white rot fungi from wood decayed for lignin degradation. Lett Appl Microbiol 2023; 76:ovad118. [PMID: 37777838 DOI: 10.1093/lambio/ovad118] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/02/2023]
Abstract
The present study was conducted to isolate and identify white rot fungi (WRF) from wood decayed and to determine their ability to produce lignin-modifying enzymes (LMEs), specifically laccase (Lac), lignin peroxidase (LiP), and manganese peroxidase (MnP), on solid and liquid media supplemented with synthetic dyes namely 2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), azure B, and phenol red. A total of 23 isolates of WRF were isolated from decayed wood and identified as eight different species namely Phanerochaete australis, Perenniporia tephropora, Lentinus squarrosulus, Ganoderma australe, Trametes polyzona, Lentinus sajor-caju, Gymnopilus dilepis, and Fomitopsis palustris based on morphological characteristics, DNA sequences of the internal transcribed spacer (ITS) region, and phylogenetic inference. The fungal isolates can be divided into four groups based on the type of LMEs produced, namely A (Lac-LiP-MnP) with 16 isolates, B (Lac-MnP) (three isolates), C (Lac) (three isolates), and D (MnP) (one isolate). This study highlights P. australis (BJ38) as the best producer of Lac and LiP, while L. squarrosulus (IPS72) is the best producer of MnP. The present study is the first reported P. australis as an efficient lignin degrader by demonstrating the highest activity of two important LMEs.
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Affiliation(s)
| | - Nik Azimatolakma Awang
- School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
| | - Masratul Hawa Mohd
- School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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Sánchez Mata O, Aguilera Flores MM, Ureño García BG, Ávila Vázquez V, Cabañas García E, Franco Villegas EA. Bioremediation of Automotive Residual Oil-Contaminated Soils by Biostimulation with Enzymes, Surfactant, and Vermicompost. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6600. [PMID: 37623183 PMCID: PMC10454165 DOI: 10.3390/ijerph20166600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/28/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
Contamination of soils by automotive residual oil represents a global environmental problem. Bioremediation is the technology most suitable to remove this contaminant from the medium. Therefore, this work aimed to evaluate the effectiveness of bioremediation of automotive residual oil-contaminated soils by biostimulation with enzymes, surfactant, and vermicompost. The bioremediation efficiency was examined using a factorial design of 24 to determine the effect of the time, pH and temperature conditions, biostimulation with enzyme-vermicompost, and biostimulation with enzyme-surfactant. Enzymes obtained from Ricinus communis L. seeds, commercial vermicompost, and Triton X-100 were used. Results showed that the highest removal efficiency (99.9%) was achieved at 49 days, with a pH of 4.5, temperature of 37 °C, and using biostimulation with enzyme-vermicompost (3% w/v-5% w/w). The addition of surfactant was not significant in increasing the removal efficiency. Therefore, the results provide adequate conditions to bioremediate automotive residual oil-contaminated soils by biostimulation using enzymes supported with vermicompost.
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Affiliation(s)
- Omar Sánchez Mata
- Interdisciplinary Professional Unit of Engineering, Campus Zacatecas, Instituto Politécnico Nacional, Blvd. del Bote 202 Cerro del Gato Ejido La Escondida, Col. Ciudad Administrativa, Zacatecas 98160, Mexico (V.Á.V.)
| | - Miguel Mauricio Aguilera Flores
- Interdisciplinary Professional Unit of Engineering, Campus Zacatecas, Instituto Politécnico Nacional, Blvd. del Bote 202 Cerro del Gato Ejido La Escondida, Col. Ciudad Administrativa, Zacatecas 98160, Mexico (V.Á.V.)
| | - Brenda Gabriela Ureño García
- Interdisciplinary Professional Unit of Engineering, Campus Zacatecas, Instituto Politécnico Nacional, Blvd. del Bote 202 Cerro del Gato Ejido La Escondida, Col. Ciudad Administrativa, Zacatecas 98160, Mexico (V.Á.V.)
| | - Verónica Ávila Vázquez
- Interdisciplinary Professional Unit of Engineering, Campus Zacatecas, Instituto Politécnico Nacional, Blvd. del Bote 202 Cerro del Gato Ejido La Escondida, Col. Ciudad Administrativa, Zacatecas 98160, Mexico (V.Á.V.)
| | - Emmanuel Cabañas García
- Scientific and Technological Studies Center No. 18, Instituto Politécnico Nacional, Blvd. del Bote 202 Cerro del Gato Ejido La Escondida, Col. Ciudad Administrativa, Zacatecas 98160, Mexico
| | - Efrén Alejandro Franco Villegas
- Interdisciplinary Professional Unit of Engineering, Campus Zacatecas, Instituto Politécnico Nacional, Blvd. del Bote 202 Cerro del Gato Ejido La Escondida, Col. Ciudad Administrativa, Zacatecas 98160, Mexico (V.Á.V.)
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10
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Amobonye A, Aruwa CE, Aransiola S, Omame J, Alabi TD, Lalung J. The potential of fungi in the bioremediation of pharmaceutically active compounds: a comprehensive review. Front Microbiol 2023; 14:1207792. [PMID: 37502403 PMCID: PMC10369004 DOI: 10.3389/fmicb.2023.1207792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/12/2023] [Indexed: 07/29/2023] Open
Abstract
The ability of fungal species to produce a wide range of enzymes and metabolites, which act synergistically, makes them valuable tools in bioremediation, especially in the removal of pharmaceutically active compounds (PhACs) from contaminated environments. PhACs are compounds that have been specifically designed to treat or alter animal physiological conditions and they include antibiotics, analgesics, hormones, and steroids. Their detrimental effects on all life forms have become a source of public outcry due their persistent nature and their uncontrolled discharge into various wastewater effluents, hospital effluents, and surface waters. Studies have however shown that fungi have the necessary metabolic machinery to degrade PhACs in complex environments, such as soil and water, in addition they can be utilized in bioreactor systems to remove PhACs. In this regard, this review highlights fungal species with immense potential in the biodegradation of PhACs, their enzymatic arsenal as well as the probable mechanism of biodegradation. The challenges encumbering the real-time application of this promising bioremediative approach are also highlighted, as well as the areas of improvement and future perspective. In all, this paper points researchers to the fact that fungal bioremediation is a promising strategy for addressing the growing issue of pharmaceutical contamination in the environment and can help to mitigate the negative impacts on ecosystems and human health.
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Affiliation(s)
- Ayodeji Amobonye
- School of Industrial Technology, Universiti Sains Malaysia, Penang, Malaysia
| | - Christiana E. Aruwa
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, Durban, South Africa
| | - Sesan Aransiola
- Bioresources Development Centre, National Biotechnology Development Agency, P.M.B. Onipanu, Ogbomosho, Nigeria
| | - John Omame
- National Environmental Standards and Regulations Enforcement Agency, Lagos Field Office, Lagos, Nigeria
| | - Toyin D. Alabi
- Department of Life Sciences, Baze University, Abuja, Nigeria
| | - Japareng Lalung
- School of Industrial Technology, Universiti Sains Malaysia, Penang, Malaysia
- Centre for Global Sustainability Studies, Universiti Sains Malaysia, Penang, Malaysia
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11
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Cao Y, Wang L, Wang Y, Wang X, Wei J, Yu T, Ma F. Functional fungal pellets self-immobilized by mycelium fragments of Irpex lacteus WRF-IL for efficient degradation of sulfamethazine as the sole carbon source. BIORESOURCE TECHNOLOGY 2023:129376. [PMID: 37355140 DOI: 10.1016/j.biortech.2023.129376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 06/26/2023]
Abstract
In order to achieve an efficient microbial material with dual functions of self-immobilization and sulfamethazine (SMZ) degradation, this study explored the pelletization technique utilizing mycelium fragments of Irpex lacteus WRF-IL and systematically examined the pellets formation conditions and degradation capability. The Box-Behnken design results demonstrated that pure mycelium fragments, broken by frosted glass beads, could be rapidly self-immobilized to form white rot mycelial pellets (WRMPs) within 24 h, serving as the pelleting core. These WRMPs could completely remove SMZ as the sole carbon source within 20 h. The addition of sucrose expedited this process, achieving complete removal within only 14 h. Kinetic analysis showed that WRMPs could potentially remove SMZ at higher concentrations (>25 mg/L). Biodegradation was the primary pathway of SMZ removal. Seven intermediates were identified by QTOF LC/MS, and three transformation pathways initiated by SO2 overflow, molecular rearrangement, and aniline moiety oxidation were deduced.
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Affiliation(s)
- Yuqing Cao
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Li Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China.
| | - Yujiao Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Xin Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Jiayu Wei
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Tianmiao Yu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, No. 73, Huanghe Road, Nangang District, Harbin 150090, PR China
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Harper R, Moody SC. Filamentous Fungi Are Potential Bioremediation Agents of Semi-Synthetic Textile Waste. J Fungi (Basel) 2023; 9:661. [PMID: 37367597 DOI: 10.3390/jof9060661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/07/2023] [Accepted: 06/10/2023] [Indexed: 06/28/2023] Open
Abstract
Textile waste contributes to the pollution of both terrestrial and aquatic ecosystems. While natural textile fibres are known to be biodegraded by microbes, the vast majority of textiles now contain a mixture of processed plant-derived polymers and synthetic materials generated from petroleum and are commonly dyed with azo dyes. This presents a complex recycling problem as the separation of threads and removal of dye are challenging and costly. As a result, the majority of textile waste is sent to landfill or incinerated. This project sought to assess the potential of fungal bioremediation of textile-based dye as a step towards sustainable and environmentally-friendly means of disposal of textile waste. Successful development of an agar-independent microcosm enabled the assessment of the ability of two fungal species to grow on a range of textiles containing an increasing percentage of elastane. The white rot fungus Hypholoma fasciculare was shown to grow well on semi-synthetic textiles, and for the first time, bioremediation of dye from textiles was demonstrated. Volatile analysis enabled preliminary assessment of the safety profile of this process and showed that industrial scale-up may require consideration of volatile capture in the design process. This study is the first to address the potential of fungi as bioremediation agents for solid textile waste, and the results suggest this is an avenue worthy of further exploration.
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Affiliation(s)
- Rachel Harper
- School of Life Sciences, Pharmacy, and Chemistry, Kingston University, Kingston upon Thames KT1 2EE, UK
| | - Suzy Clare Moody
- School of Life Sciences, Pharmacy, and Chemistry, Kingston University, Kingston upon Thames KT1 2EE, UK
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Thoa LTK, Thao TTP, Nguyen-Thi ML, Chung ND, Ooi CW, Park SM, Lan TT, Quang HT, Khoo KS, Show PL, Huy ND. Microbial biodegradation of recalcitrant synthetic dyes from textile-enriched wastewater by Fusarium oxysporum. CHEMOSPHERE 2023; 325:138392. [PMID: 36921772 DOI: 10.1016/j.chemosphere.2023.138392] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/09/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
The present study reported the improvement of biological treatment for the removal of recalcitrant dyes including aniline blue, reactive black 5, orange II, and crystal violet in contaminated water. The biodegradation efficiency of Fusarium oxysporum was significantly enhanced by the addition of mediators and by adjusting the biomass density and nutrient composition. A supplementation of 1% glucose in culture medium improved the biodegradation efficiency of aniline blue, reactive black 5, orange II, and crystal violet by 2.24, 1.51, 4.46, and 2.1 folds, respectively. Meanwhile, the addition of mediators to culture medium significantly increased the percentages of total removal for aniline blue, reactive black 5, orange II, and crystal violet, reaching 86.07%, 68.29%, 76.35%, and 95.3%, respectively. Interestingly, the fungal culture supplemented with 1% remazol brilliant blue R boosted the biodegradation up to 97.06%, 89.86%, 91.38%, and 86.67% for aniline blue, reactive black 5, orange II, and crystal violet, respectively. Under optimal culture conditions, the fungal culture could degrade these synthetic dyes concentration up to 104 mg/L. The present study demonstrated that different recalcitrant dye types can be efficiently degraded using microorganism such as F. oxysporum.
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Affiliation(s)
- Le Thi Kim Thoa
- Jeonbuk National University, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea
| | | | - My-Le Nguyen-Thi
- Hearing Research Laboratory, Samsung Medical Center, 06351, Seoul, South Korea
| | - Nguyen Duc Chung
- University of Agriculture and Forestry, Hue University, Hue, 49000, Viet Nam
| | - Chien Wei Ooi
- Chemical Engineering Discipline and Advanced Engineering Platform, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway 47500, Selangor Darul Ehsan, Malaysia
| | - Seung-Moon Park
- Jeonbuk National University, Jeonju-si, Jeollabuk-do, 54896, Republic of Korea
| | - Tran Thuy Lan
- Insitute of Biotechnology, Hue University, Hue, 49000, Viet Nam
| | - Hoang Tan Quang
- Insitute of Biotechnology, Hue University, Hue, 49000, Viet Nam
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan; Department of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, 602105, India
| | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates; Zhejiang Provincial Key Laboratory for Subtropical Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou, 325035, China; Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
| | - Nguyen Duc Huy
- Insitute of Biotechnology, Hue University, Hue, 49000, Viet Nam.
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Kumar D, Bhardwaj R, Jassal S, Goyal T, Khullar A, Gupta N. Application of enzymes for an eco-friendly approach to textile processing. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:71838-71848. [PMID: 34651264 DOI: 10.1007/s11356-021-16764-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Textile industry is one of the oldest industries existing from several centuries. Major concern of the industry is to design, produce, and distribute yarn, cloth, and clothing. Diverse physical and chemical operations are required in order to achieve this. Environmental concerns related to textile industry have attained attention all around the world as it is generating large amounts of effluents having various toxic agents and chemicals. Enzymes have been suggested as the best possible alternative to replace or reduce these hazardous and toxic chemicals. Enzymes like amylase, cellulase, catalase, protease, pectinase, laccase, and lipase have widely been used in textile manufacturing processes. Use of enzymatic approach is very promising as they are eco-friendly, produce high-quality products, and lead to the reduction of energy, water, and time. This review highlights the significance of different enzymes employed in the textile industry at various stages along with the conventional textile processing.
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Affiliation(s)
- Deepak Kumar
- Department of Microbiology, DAV University, Jalandhar, Punjab, India.
| | - Raveena Bhardwaj
- Department of Microbiology, DAV University, Jalandhar, Punjab, India
| | - Sunena Jassal
- Department of Microbiology, Panjab University, BMS Block I, Sector 25, South Campus Panjab University, Chandigarh, India
| | - Tanya Goyal
- Department of Microbiology, Panjab University, BMS Block I, Sector 25, South Campus Panjab University, Chandigarh, India
| | - Aastha Khullar
- Department of Microbiology, Panjab University, BMS Block I, Sector 25, South Campus Panjab University, Chandigarh, India
| | - Naveen Gupta
- Department of Microbiology, Panjab University, BMS Block I, Sector 25, South Campus Panjab University, Chandigarh, India.
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15
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Corbu VM, Gheorghe-Barbu I, Dumbravă AȘ, Vrâncianu CO, Șesan TE. Current Insights in Fungal Importance-A Comprehensive Review. Microorganisms 2023; 11:1384. [PMID: 37374886 DOI: 10.3390/microorganisms11061384] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 05/20/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
Besides plants and animals, the Fungi kingdom describes several species characterized by various forms and applications. They can be found in all habitats and play an essential role in the excellent functioning of the ecosystem, for example, as decomposers of plant material for the cycling of carbon and nutrients or as symbionts of plants. Furthermore, fungi have been used in many sectors for centuries, from producing food, beverages, and medications. Recently, they have gained significant recognition for protecting the environment, agriculture, and several industrial applications. The current article intends to review the beneficial roles of fungi used for a vast range of applications, such as the production of several enzymes and pigments, applications regarding food and pharmaceutical industries, the environment, and research domains, as well as the negative impacts of fungi (secondary metabolites production, etiological agents of diseases in plants, animals, and humans, as well as deteriogenic agents).
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Affiliation(s)
- Viorica Maria Corbu
- Genetics Department, Faculty of Biology, University of Bucharest, 060101 Bucharest, Romania
- Research Institute of the University of Bucharest-ICUB, 91-95 Spl. Independentei, 050095 Bucharest, Romania
| | - Irina Gheorghe-Barbu
- Research Institute of the University of Bucharest-ICUB, 91-95 Spl. Independentei, 050095 Bucharest, Romania
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 060101 Bucharest, Romania
| | - Andreea Ștefania Dumbravă
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 060101 Bucharest, Romania
| | - Corneliu Ovidiu Vrâncianu
- Research Institute of the University of Bucharest-ICUB, 91-95 Spl. Independentei, 050095 Bucharest, Romania
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 060101 Bucharest, Romania
| | - Tatiana Eugenia Șesan
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 060101 Bucharest, Romania
- Academy of Agricultural Sciences and Forestry, 61 Bd. Mărăşti, District 1, 011464 Bucharest, Romania
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16
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Verma S, Thakur D, Pandey CM, Kumar D. Recent Prospects of Carbonaceous Nanomaterials-Based Laccase Biosensor for Electrochemical Detection of Phenolic Compounds. BIOSENSORS 2023; 13:305. [PMID: 36979517 PMCID: PMC10046707 DOI: 10.3390/bios13030305] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Phenolic compounds (PhCs) are ubiquitously distributed phytochemicals found in many plants, body fluids, food items, medicines, pesticides, dyes, etc. Many PhCs are priority pollutants that are highly toxic, teratogenic, and carcinogenic. Some of these are present in body fluids and affect metabolism, while others possess numerous bioactive properties such as retaining antioxidant and antimicrobial activity in plants and food products. Therefore, there is an urgency for developing an effective, rapid, sensitive, and reliable tool for the analysis of these PhCs to address their environmental and health concern. In this context, carbonaceous nanomaterials have emerged as a promising material for the fabrication of electrochemical biosensors as they provide remarkable characteristics such as lightweight, high surface: volume, excellent conductivity, extraordinary tensile strength, and biocompatibility. This review outlines the current status of the applications of carbonaceous nanomaterials (CNTs, graphene, etc.) based enzymatic electrochemical biosensors for the detection of PhCs. Efforts have also been made to discuss the mechanism of action of the laccase enzyme for the detection of PhCs. The limitations, advanced emerging carbon-based material, current state of artificial intelligence in PhCs detection, and future scopes have also been summarized.
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Affiliation(s)
- Sakshi Verma
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
| | - Deeksha Thakur
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
| | - Chandra Mouli Pandey
- Department of Chemistry, Faculty of Science, SGT University, Gurugram 122505, India
| | - Devendra Kumar
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
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17
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Gul R, Sharma P, Kumar R, Umar A, Ibrahim AA, Alhamami MAM, Jaswal VS, Kumar M, Dixit A, Baskoutas S. A sustainable approach to the degradation of dyes by fungal species isolated from industrial wastewaters: Performance, parametric optimization, kinetics and degradation mechanism. ENVIRONMENTAL RESEARCH 2023; 216:114407. [PMID: 36216116 DOI: 10.1016/j.envres.2022.114407] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 09/06/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Fungal abetted processes are among the finest approaches for the transformation or degradation and decolorization of dyes in effluents. In this piece of research; biodegradation and metabolic pathways of two toxic dyes Congo Red (CR) and Reactive black 5 (RB5) by two strains of Aspergillus sp. fungus in batch experiments has been investigated. Morphological characteristics of the isolates were observed with both light and electron microscopies. Based on molecular characterization the isolates were identified as Aspergillus flavus and Aspergillus niger. The degradation was also optimized via. operational parameters such as pH, temperature, incubation time, inoculums size, dye concentration, carbon sources and nitrogen sources. Degradation measurements revealed that the isolates effectively degraded 90% and 96% of CR and RB5 respectively. Metabolites were identified with Liquid chromatography-mass spectrometry (LCMS) and degradation pathways of the dyes were proposed. Toxicity assay Phaseolus mungo seeds showed that pure CR and RB5 dyes exhibits significant toxicity whereas fungal treated dye solution resulted in an abatement of the toxicity and cell viability was increased. The results stipulated in this article clearly showed the effectiveness of the isolates on detoxification of CR and RB5 dyes.
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Affiliation(s)
- Roshan Gul
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana, 133207, Ambala, India
| | - Priyanka Sharma
- Shaheed Bhagat Singh Khalsa College for Women Padiala, S.A.S. Nagar, Punjab, 140103, India
| | - Raman Kumar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana, 133207, Ambala, India.
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Saudi Arabia; Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, 43210, USA.
| | - Ahmed A Ibrahim
- Department of Chemistry, Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Saudi Arabia
| | - Mohsen A M Alhamami
- Department of Chemistry, Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Saudi Arabia
| | - Vivek Sheel Jaswal
- Department of Chemistry and Chemical Science, Central University of Himachal Pradesh, Dharamshala, H.P., India
| | - Manish Kumar
- Department of Chemistry and Chemical Science, Central University of Himachal Pradesh, Dharamshala, H.P., India
| | - Ashutosh Dixit
- Department of Chemistry, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, India
| | - Sotirios Baskoutas
- Department of Materials Science, University of Patras, 265000, Patras, Greece
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18
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Rodrigues AF, da Silva AF, da Silva FL, dos Santos KM, de Oliveira MP, Nobre MM, Catumba BD, Sales MB, Silva AR, Braz AKS, Cavalcante AL, Alexandre JY, Junior PG, Valério RB, de Castro Bizerra V, do Santos JC. A scientometric analysis of research progress and trends in the design of laccase biocatalysts for the decolorization of synthetic dyes. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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19
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Puspita K, Chiari W, Abdulmadjid SN, Idroes R, Iqhrammullah M. Four Decades of Laccase Research for Wastewater Treatment: Insights from Bibliometric Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:308. [PMID: 36612634 PMCID: PMC9819511 DOI: 10.3390/ijerph20010308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Increasing trends of environmental pollution and emerging contaminants from anthropogenic activities have urged researchers to develop innovative strategies in wastewater management, including those using the biocatalyst laccase (EC 1.10.3.2). Laccase works effectively against a variety of substrates ranging from phenolic to non-phenolic compounds which only require molecular oxygen to be later reduced to H2O as the final product. In this study, we performed a bibliometric analysis on the metadata of literature acquired through the Scopus database (24 October 2022) with keyword combination "Laccase" AND "Pollutant" OR "Wastewater". The included publications were filtered based on year of publication (1978-2022), types of articles (original research articles and review articles) and language (English). The metadata was then exported in a CSV (.csv) file and visualized on VosViewer software. A total of 1865 publications were identified, 90.9% of which were original research articles and the remaining 9.1% were review articles. Most of the authors were from China (n = 416; 22.3%) and India (n = 276; 14.79%). In the case of subject area, 'Environmental Science' emerged with the highest published documents (n = 1053; 56.46%). The identified papers mostly cover laccase activity in degrading pollutants, and chitosan, which can be exploited for the immobilization. We encourage more research on laccase-assisted wastewater treatment, especially in terms of collaborations among organizations.
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Affiliation(s)
- Kana Puspita
- Department of Chemistry Education, Faculty of Education and Teacher Training, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Williams Chiari
- Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Innovative Sustainability Lab, PT. Biham Riset dan Edukasi, Banda Aceh 23243, Indonesia
| | - Syahrun N. Abdulmadjid
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Rinaldi Idroes
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Muhammad Iqhrammullah
- Innovative Sustainability Lab, PT. Biham Riset dan Edukasi, Banda Aceh 23243, Indonesia
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
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20
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Chenthamara D, Sivaramakrishnan M, Ramakrishnan SG, Esakkimuthu S, Kothandan R, Subramaniam S. Improved laccase production from Pleurotus floridanus using deoiled microalgal biomass: statistical and hybrid swarm-based neural networks modeling approach. 3 Biotech 2022; 12:346. [PMID: 36386567 PMCID: PMC9649576 DOI: 10.1007/s13205-022-03404-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 10/05/2022] [Indexed: 11/11/2022] Open
Abstract
Fungal laccases are versatile biocatalyst and occupy a prominent place in various industrial applications due to its broad substrate specificity. The simplest method to enhance the laccase production is by usage of cheap substrates in the fermentation processes incorporating modeling approaches for optimization. Integrated biorefinery concept is receiving wide popularity by making use of various products from microalgal biomass. The research aimed to identify the potential of deoiled microalgal biomass (DMB), a waste product from algal biorefinery as a nutrient supplement to enhance laccase production in Pleurotus floridanus by submerged fermentation. The maximum production was obtained in the presence of DMB as an additional nutrient supplement and copper sulfate as an inducer. The predictive capabilities of the two methodologies Response Surface Methodology (RSM) and hybrid Particle swarm optimization (PSO)-based Artificial Neural Network (ANN) were compared and validated. The results showed that ANN coupled with PSO predicted with more accuracy with an R 2 value of 0.99 than the RSM model with an R 2 value of 0.97. The optimized condition as predicted by superior model hybrid PSO-based ANN was glucose (3.51%), DMB (0.545%), pH (4.9), temperature (24.68 ℃) and CuSO4 (1.35 mM). The experimental laccase activity was 80.45 ± 0.132 U/mL which was 1.3 fold higher than unoptimized condition. This study promotes the usage of DMB as a novel supplement for the improved production of Pleurotus floridanus laccase. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03404-y.
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Affiliation(s)
- Dhrisya Chenthamara
- Bioprocess and Biomaterials Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | | | - Sankar Ganesh Ramakrishnan
- Bioprocess and Biomaterials Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
| | | | - Ram Kothandan
- Department of Biotechnology, Kumaraguru College of Technology, Coimbatore, India
| | - Sadhasivam Subramaniam
- Bioprocess and Biomaterials Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore, India
- Department of Extension and Career Guidance, Bharathiar University, Coimbatore, India
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Sutaoney P, Pandya S, Gajarlwar D, Joshi V, Ghosh P. Feasibility and potential of laccase-based enzyme in wastewater treatment through sustainable approach: A review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:86499-86527. [PMID: 35771325 DOI: 10.1007/s11356-022-21565-4] [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: 01/19/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
The worldwide increase in metropolitan cities and rise in industrialization have resulted in the assimilation of hazardous pollutants into the ecosystems. Different physical, chemical and biological techniques have been employed to remove these toxins from water bodies. Several bioprocess applications using microbes and their enzymes are utilized to achieve the goal. Biocatalysts, such as laccases, are employed explicitly to deplete a variety of organic pollutants. However, the degradation of contaminants using biocatalysts has many disadvantages concerning the stability and activity of the enzyme. Hence, they are immobilized on different supports to improve the enzyme kinetics and recyclability. Furthermore, standard wastewater treatment methods are not effective in eliminating all the contaminants. As a result, membrane separation technologies have emerged to overcome the limitations of traditional wastewater treatment methods. Moreover, enzymes immobilized onto these membranes have generated new avenues in wastewater purification technology. This review provides the latest information on laccases from diverse sources, their molecular framework and their mode of action. This report also gives information about various immobilization techniques and the application of membrane bioreactors to eliminate and biotransform hazardous contaminants. In a nutshell, laccases appear to be the most promising biocatalysts for green and cost-efficient wastewater treatment technologies.
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Affiliation(s)
- Priya Sutaoney
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
| | - Srishti Pandya
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
| | - Devashri Gajarlwar
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
| | - Veenu Joshi
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
| | - Prabir Ghosh
- Department of Chemical Engineering, NIT Raipur, Raipur, Chhattisgarh, India.
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22
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Site-Specific Covalent Immobilization of Methylobacterium extorquens Non-Blue Laccse Melac13220 on Fe3O4 Nanoparticles by Aldehyde Tag. Catalysts 2022. [DOI: 10.3390/catal12111379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
In the present study, the non-blue laccase Melac13220 from Methylobacterium extorquens was immobilized using three methods to overcome problems related to the stability and reusability of the free enzyme: entrapment of the enzyme with sodium alginate, crosslinking of the enzyme with glutaraldehyde and chitosan-, and site-specific covalent immobilization of the enzyme on Fe3O4 nanoparticles by an aldehyde tag. The site-specific covalent immobilization method showed the highest immobilization efficiency and vitality recovery. The optimum temperature of Melac13220 was increased from 65 °C to 80 °C. Immobilized Melac13220 showed significant tolerance to some organic solvents and maintained approximately 80% activity after 10 cycles of use. Differential scanning calorimetry (DSC) indicated that the melting temperature of the enzyme was increased (from 57 °C to 79 °C). Immobilization of Melac13220 also led to improvement in dye decolorization such that Congo Red was completely decolorized within 10 h. The immobilized enzyme can be easily prepared without purification, demonstrating the advantages of using the aldehyde tag strategy and providing a reference for the practical application of different immobilized laccase methods in the industrial field.
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Recent Advancements in Biotechnological Applications of Laccase as a Multifunctional Enzyme. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2022. [DOI: 10.22207/jpam.16.3.72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Biotechnological and industrial processes involve applications of various microorganisms and enzymes, and laccase, as a multifunctional enzyme, is admired for its role in degrading a variety of substances. Laccase is a copper-containing oxidase enzyme that is usually found in insects, plants, and microorganisms including fungi and archaea. Several phenolic substrates are oxidized by laccases, which results in crosslinking. Various research work and industrial solutions have identified the true potential of laccases to degrade various aromatic polymers, and their plausible application in bioremediation and other industries is entirely conceivable. This review focuses on laccases as a multifunctional enzyme and provides an overview of its natural origin, catalytic mechanism, and various methods of production. Further, we discuss the various applications of laccase in the biotechnological arena. We observed that laccase can degrade and detoxify various synthetic compounds. The broad substrate specificity of the same makes it worthy for different fields of industrial applications such as food and bioremediation technology, textile and paper technology, biosensors and nanobiotechnology, biofuel, and various other applications, which are described in this paper. These recent developments in the application of laccase show the multifunctional role of laccase in industrial biotechnology and provide an outlook of laccase as a multifunctional enzyme at the forefront of biotechnology.
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Khan AA, Mukherjee S, Mondal M, Boddu S, Subbaiah T, Halder G. Assessment of algal biomass towards removal of Cr(VI) from tannery effluent: a sustainable approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:61856-61869. [PMID: 34431055 DOI: 10.1007/s11356-021-16102-8] [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: 05/08/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
The current investigation focuses on a systematic study of application of two dried algal biomass (i.e., Nostoc sp. and Turbinaria vulgaris) in removal of Cr(VI) from synthetic solution as well as tannery industrial wastewater. The optimized conditions for Cr(VI) removal are nearly same for the both the biosorbents (i.e., pH 2.8, initial Cr(VI) concentration 100 mg L-1, biomass dosage of 1.2g L-1, contact time 120 and 110 min). Nostoc sp. (qmax=23.94mg g-1) was observed to possess a superior removal capability when compared to Turbinaria vulgaris (qmax=21.8mg g-1). Desorption studies were performed with four different desorbing agents. Application study was conducted using tannery wastewater with Nostoc sp. and 94.20% removal of Cr(VI) was obtained. Hence, this study revealed that Nostoc sp. and T. vulgaris both have great potential to be an environment friendly and economic biosorbent for removal of Cr(VI) containing industrial effluent.
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Affiliation(s)
- Anoar Ali Khan
- Department of Chemical Engineering, Vignan's Foundation for Science, Technology & Research, Vadlamudi, Guntur, Andhra Pradesh, 522213, India.
| | - Shraboni Mukherjee
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur, 713209, India
| | - Madhumanti Mondal
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur, 713209, India
| | - Sumalatha Boddu
- Department of Chemical Engineering, Vignan's Foundation for Science, Technology & Research, Vadlamudi, Guntur, Andhra Pradesh, 522213, India
| | - Tondepu Subbaiah
- Department of Chemical Engineering, Vignan's Foundation for Science, Technology & Research, Vadlamudi, Guntur, Andhra Pradesh, 522213, India
| | - Gopinath Halder
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur, 713209, India
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Nelson AR, Narrowe AB, Rhoades CC, Fegel TS, Daly RA, Roth HK, Chu RK, Amundson KK, Young RB, Steindorff AS, Mondo SJ, Grigoriev IV, Salamov A, Borch T, Wilkins MJ. Wildfire-dependent changes in soil microbiome diversity and function. Nat Microbiol 2022; 7:1419-1430. [PMID: 36008619 PMCID: PMC9418001 DOI: 10.1038/s41564-022-01203-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 07/18/2022] [Indexed: 12/13/2022]
Abstract
Forest soil microbiomes have crucial roles in carbon storage, biogeochemical cycling and rhizosphere processes. Wildfire season length, and the frequency and size of severe fires have increased owing to climate change. Fires affect ecosystem recovery and modify soil microbiomes and microbially mediated biogeochemical processes. To study wildfire-dependent changes in soil microbiomes, we characterized functional shifts in the soil microbiota (bacteria, fungi and viruses) across burn severity gradients (low, moderate and high severity) 1 yr post fire in coniferous forests in Colorado and Wyoming, USA. We found severity-dependent increases of Actinobacteria encoding genes for heat resistance, fast growth, and pyrogenic carbon utilization that might enhance post-fire survival. We report that increased burn severity led to the loss of ectomycorrhizal fungi and less tolerant microbial taxa. Viruses remained active in post-fire soils and probably influenced carbon cycling and biogeochemistry via turnover of biomass and ecosystem-relevant auxiliary metabolic genes. Our genome-resolved analyses link post-fire soil microbial taxonomy to functions and reveal the complexity of post-fire soil microbiome activity.
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Affiliation(s)
- Amelia R Nelson
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA
| | - Adrienne B Narrowe
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA
- Eastern Regional Research Center, Agricultural Research Service, Wyndmoor, PA, USA
| | - Charles C Rhoades
- Rocky Mountain Research Station, U.S. Forest Service, Fort Collins, CO, USA
| | - Timothy S Fegel
- Rocky Mountain Research Station, U.S. Forest Service, Fort Collins, CO, USA
| | - Rebecca A Daly
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA
| | - Holly K Roth
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
| | - Rosalie K Chu
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Kaela K Amundson
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA
| | - Robert B Young
- Chemical Analysis and Instrumentation Laboratory, New Mexico State University, Las Cruces, NM, USA
| | - Andrei S Steindorff
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Stephen J Mondo
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Agricultural Biology, Colorado State University, Fort Collins, CO, USA
| | - Igor V Grigoriev
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA, USA
| | - Asaf Salamov
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Thomas Borch
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA
- Department of Chemistry, Colorado State University, Fort Collins, CO, USA
- Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO, USA
| | - Michael J Wilkins
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, USA.
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Miglani R, Parveen N, Kumar A, Ansari MA, Khanna S, Rawat G, Panda AK, Bisht SS, Upadhyay J, Ansari MN. Degradation of Xenobiotic Pollutants: An Environmentally Sustainable Approach. Metabolites 2022; 12:818. [PMID: 36144222 PMCID: PMC9505297 DOI: 10.3390/metabo12090818] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/21/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
The ability of microorganisms to detoxify xenobiotic compounds allows them to thrive in a toxic environment using carbon, phosphorus, sulfur, and nitrogen from the available sources. Biotransformation is the most effective and useful metabolic process to degrade xenobiotic compounds. Microorganisms have an exceptional ability due to particular genes, enzymes, and degradative mechanisms. Microorganisms such as bacteria and fungi have unique properties that enable them to partially or completely metabolize the xenobiotic substances in various ecosystems.There are many cutting-edge approaches available to understand the molecular mechanism of degradative processes and pathways to decontaminate or change the core structure of xenobiotics in nature. These methods examine microorganisms, their metabolic machinery, novel proteins, and catabolic genes. This article addresses recent advances and current trends to characterize the catabolic genes, enzymes and the techniques involved in combating the threat of xenobiotic compounds using an eco-friendly approach.
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Affiliation(s)
- Rashi Miglani
- Department of Zoology, D.S.B Campus, Kumaun University, Nainital 263002, Uttarakhand, India
| | - Nagma Parveen
- Department of Zoology, D.S.B Campus, Kumaun University, Nainital 263002, Uttarakhand, India
| | - Ankit Kumar
- Department of Pharmaceutical Sciences, Sir J. C Bose Technical Campus, Bhimtal, Nainital 263136, Uttarakhand, India
| | - Mohd. Arif Ansari
- Department of Forestry and Environmental Science, D.S.B Campus, Kumaun University, Nainital 263002, Uttarakhand, India
| | - Soumya Khanna
- Department of Anatomy, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Gaurav Rawat
- Department of Zoology, D.S.B Campus, Kumaun University, Nainital 263002, Uttarakhand, India
| | - Amrita Kumari Panda
- Department of Biotechnology, Sant Gahira Guru University, Ambikapur 497001, Chhattisgarh, India
| | - Satpal Singh Bisht
- Department of Zoology, D.S.B Campus, Kumaun University, Nainital 263002, Uttarakhand, India
| | - Jyoti Upadhyay
- Department of Pharmaceutical Sciences, School of Health Sciences and Technology, University of Petroleum and Energy Studies, Energy Acre Campus Bidholi, Dehradun 248007, Uttarakhand, India
| | - Mohd Nazam Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
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Ainiwaer A, Liang Y, Ye X, Gao R. Characterization of a Novel Fe 2+ Activated Non-Blue Laccase from Methylobacterium extorquens. Int J Mol Sci 2022; 23:ijms23179804. [PMID: 36077196 PMCID: PMC9456135 DOI: 10.3390/ijms23179804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/22/2022] [Accepted: 08/25/2022] [Indexed: 11/09/2022] Open
Abstract
Herein, a novel laccase gene, Melac13220, was amplified from Methylobacterium extorquens and successfully expressed in Escherichia coli with a molecular weight of approximately 50 kDa. The purified Melac13220 had no absorption peak at 610 nm and remained silent within electron paramagnetic resonance spectra, suggesting that Melac13220 belongs to the non-blue laccase group. Both inductively coupled plasma spectroscopy/optical emission spectrometry (ICP-OES) and isothermal titration calorimetry (ITC) indicated that one molecule of Melac13220 can interact with two iron ions. Furthermore, the optimal temperature of Melac13220 was 65 °C. It also showed a high thermolability, and its half-life at 65 °C was 80 min. Melac13220 showed a very good acid environment tolerance; its optimal pH was 1.5. Cu2+ and Co2+ can slightly increase enzyme activity, whereas Fe2+ could increase Melac13220′s activity five-fold. Differential scanning calorimetry (DSC) indicated that Fe2+ could also stabilize Melac13220. Unlike most laccases, Melac13220 can efficiently decolorize Congo Red and Indigo Carmine dyes even in the absence of a redox mediator. Thus, the non-blue laccase from Methylobacterium extorquens shows potential application value and may be valuable for environmental protection, especially in the degradation of dyes at low pH.
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Affiliation(s)
| | | | | | - Renjun Gao
- Correspondence: ; Tel.: +86-431-18604313058; Fax: +86-431-85155200
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Golgeri M DB, Mulla SI, Bagewadi ZK, Tyagi S, Hu A, Sharma S, Bilal M, Bharagava RN, Ferreira LFR, Gurumurthy DM, Nadda AK. A systematic review on potential microbial carbohydrases: current and future perspectives. Crit Rev Food Sci Nutr 2022; 64:438-455. [PMID: 35930295 DOI: 10.1080/10408398.2022.2106545] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Various studies have shown that the microbial proteins are often more stable than belongs to other sources like plant and animal origin. Hence, the interest in microbial enzymes has gained much attention due to many potential applications like bioenergy, biofuel production, biobleaching, bioconversion and so on. Additionally, recent trends revealed that the interest in isolating novel microbes from harsh environments have been the main focus of many scientists for various applications. Basically, industrially important enzymes can be categorized into mainly three groups: carbohydrases, proteases, and lipases. Among those, the enzymes especially carbohydrases involved in production of sugars. Carbohydrases include amylases, xylanases, pectinases, cellulases, chitinases, mannases, laccases, ligninases, lactase, glucanase, and glucose oxidase. Thus, here, an approach has been made to highlight five enzymes namely amylase, cellulase, laccase, pectinase, and xylanase from different sources with special emphasis on their properties, mechanism, applications, production optimization, purification, molecular approaches for its enhanced and stable production, and also biotechnological perspectives of its future development. Also, green and sustainable catalytic conversion strategies using nanoparticles of these enzymes have also been discussed. This review will provide insight into the carbohydrases importance and their usefulness that will help to the researchers working in this field.
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Affiliation(s)
- Dilshad Begum Golgeri M
- Department of Biochemistry, School of Allied Health Sciences, REVA University, Bangalore, India
- Department of Biochemistry, Indian Academy Degree College-Autonomous Kalyanagar, Bangalore, India
| | - Sikandar I Mulla
- Department of Biochemistry, School of Allied Health Sciences, REVA University, Bangalore, India
| | - Zabin K Bagewadi
- Department of Biotechnology, KLE Technological University, Hubballi, Karnataka, India
| | - Swati Tyagi
- IRRI- South Asia Regional centre, Varanasi, Uttar Pradesh, India
| | - Anyi Hu
- Institute of Urban Environment Chinese Academy of Sciences, CAS Key Laboratory of Urban Pollutant Conversion, Xiamen, China
| | - Swati Sharma
- University Institute of Biotechnology (UIBT), Chandigarh University, Mohali, Punjab, India
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Ram Naresh Bharagava
- Department of Microbiology (DM), School for Environmental Sciences (SES), Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, Uttar Pradesh, India
| | | | | | - Ashok Kumar Nadda
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, Himachal Pradesh, India
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Kurniati A, Puspaningsih NNT, Putri KDA, Damayanti M, Purwani NN, Rahmah SA, Purkan, Fujiyama K, Sakka M, Sakka K, Kimura T, Rohman A, Baktir A, Sanjaya RE. Heterologous fusion gene expression and characterization of a novel carbohydrate binding module (Cbm36) to laccase (Lcc2). BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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ThhspA1 is involved in lacA transcriptional regulation of Trametes hirsuta AH28-2 exposed to o-toluidine. Fungal Genet Biol 2022; 161:103716. [PMID: 35691497 DOI: 10.1016/j.fgb.2022.103716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 11/20/2022]
Abstract
White rot fungi, especially Trametes spp., respond to a wide range of aromatic compounds and dramatically enhance laccase activity, while the activation mechanisms remain to be elucidated. Here, we show that an Hsp70 homolog named ThhspA1 regulates the transcription of laccase LacA in Trametes hirsuta AH28-2 when confronted with o-toluidine. ThhspA1 is pulled down by lacA promoter sequence from the nuclear mixture extracted from T. hirsuta AH28-2 induced by 2 mM o-toluidine. Silencing of ThhspA1 results in a sharp decrease in lacA transcripts and laccase activity in vivo. By comparison, ThhspA1 overexpression does not affect lacA transcription, and laccase activity shows slight enhancement or remains unchanged upon induction with o-toluidine. Electrophoretic mobility shift assays suggest a direct interaction between ThhspA1 and the lacA promoter region. Further investigation shows that the integrity of ThhspA1 is critical since its substrate binding domain (SBD) and nucleotide-binding domain (NBD) are both necessary for DNA binding, with a higher affinity of SBD than NBD based on fluorescence polarization assay. Our results demonstrate that ThhspA1 functions as an aromatic-stress-related DNA binding transcriptional factor required for LacA expression.
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31
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Zofair SFF, Ahmad S, Hashmi MA, Khan SH, Khan MA, Younus H. Catalytic roles, immobilization and management of recalcitrant environmental pollutants by laccases: Significance in sustainable green chemistry. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 309:114676. [PMID: 35151142 DOI: 10.1016/j.jenvman.2022.114676] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/08/2022] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
We are facing a high risk of exposure to emerging contaminants and increasing environmental pollution with the concomitant growth of industries. Persistence of these pollutants is a major concern to the ecosystem. Laccases, also known as "green catalysts" are multi-copper oxidases which offers an eco-friendly solution for the degradation of these hazardous pollutants to less or non-toxic compounds. Although various other biological methods exist for the treatment of pollutants, the fact that laccases catalyze the oxidation of broad range of substrates in the presence of molecular oxygen without any additional cofactor and releases water as the by-product makes them exceptional. They have a good possibility of utilization in various industries, especially for the purpose of bioremediation. Besides this, they have also been used in medical/health care, food industry, bio-bleaching, wine stabilization, organic synthesis and biosensors. This review covers the catalytic behaviour of laccases, their immobilization strategies, potential applications in bioremediation of recalcitrant environmental pollutants and their engineering. It provides a comprehensive summary of most factors to consider while working with laccases in an industrial setting. It compares the benefits and drawbacks of the current techniques. Immobilization and mediators, two of the most significant aspects in working with laccases, have been meticulously discussed.
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Affiliation(s)
- Syeda Fauzia Farheen Zofair
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Sumbul Ahmad
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Md Amiruddin Hashmi
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Shaheer Hasan Khan
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Masood Alam Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, Buraydah, 51452, Saudi Arabia
| | - Hina Younus
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
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Tavares MP, Dutra TR, Morgan T, Ventorim RZ, de Souza Ladeira Ázar RI, Varela EM, Ferreira RC, de Oliveira Mendes TA, de Rezende ST, Guimarães VM. Multicopper oxidase enzymes from Chrysoporthe cubensis improve the saccharification yield of sugarcane bagasse. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Eldin AM, Al-Sharnouby SFS, ElGabry KIM, Ramadan AI. Aspergillus terreus, Penicillium sp. and Bacillus sp. isolated from mangrove soil having laccase and peroxidase role in depolymerization of polyethylene bags. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.04.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Clark M, Tepper K, Petroll K, Kumar S, Sunna A, Maselko M. Bioremediation of Industrial Pollutants by Insects Expressing a Fungal Laccase. ACS Synth Biol 2022; 11:308-316. [PMID: 34882406 DOI: 10.1021/acssynbio.1c00427] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inadequate management of household and industrial wastes poses major challenges to human and environmental health. Advances in synthetic biology may help address these challenges by engineering biological systems to perform new functions such as biomanufacturing of high-value compounds from low-value waste streams and bioremediation of industrial pollutants. The current emphasis on microbial systems for biomanufacturing, which often requires highly preprocessed inputs and sophisticated infrastructure, is not feasible for many waste streams. Furthermore, concerns about transgene biocontainment have limited the release of engineered microbes or plants for bioremediation. Engineering of animals may provide opportunities for utilizing various waste streams that are not suitable for microbial biomanufacturing while effective transgene biocontainment options should enable in situ bioremediation. Here, we engineer the model insect Drosophila melanogaster to express a functional laccase from the fungus Trametes trogii. Laccase-expressing flies reduced concentrations of the endocrine disruptor bisphenol A by more than 50% when present in their growth media. A lyophilized powder prepared from engineered adult flies retained substantial enzymatic activity, degrading more than 90% of bisphenol A and the textile dye indigo carmine in aqueous solutions. Our results demonstrate that transgenic animals may be used to bioremediate environmental contaminants in vivo and serve as novel production platforms for industrial enzymes. These results support further development of insects, and possibly other animals, as bioproduction platforms and their potential use in bioremediation.
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Affiliation(s)
- Michael Clark
- Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Kate Tepper
- Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Kerstin Petroll
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Sheemal Kumar
- Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Anwar Sunna
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
- Biomolecular Discovery Research Centre, Macquarie University, Sydney, NSW 2109, Australia
| | - Maciej Maselko
- Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia
- Biomolecular Discovery Research Centre, Macquarie University, Sydney, NSW 2109, Australia
- CSIRO Synthetic Biology Future Science Platform, Brisbane 4001 QLD, Australia
- CSIRO Health and Biosecurity, Geelong, VIC 3219, Australia
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36
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Biosorption and Bioleaching of Heavy Metals from Electronic Waste Varied with Microbial Genera. SUSTAINABILITY 2022. [DOI: 10.3390/su14020935] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Industrialization and technological advancements have led to the exploitation of natural resources and the production of hazardous wastes, including electronic waste (E-waste). The traditional physical and chemical techniques used to combat E-waste accumulation have inherent drawbacks, such as the production of harmful gases and toxic by-products. These limitations may be prudently addressed by employing green biological methods, such as biosorption and bioleaching. Therefore, this study was aimed at evaluating the biosorption and bioleaching potential of seven microbial cultures using E-waste (printed circuit board (PCB)) as a substrate under submerged culture conditions. The cut pieces of PCB were incubated with seven microbial cultures in liquid broth conditions in three replicates. Atomic absorption spectroscopy (AAS) analysis of the culture biomass and culture filtrates was performed to evaluate and screen the better-performing microbial cultures for biosorption and bioleaching potentials. The best four cultures were further evaluated through SEM, energy-dispersive X-ray spectroscopy (EDX), and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) studies to identify the possible culture that can be utilized for the biological decontamination of E-waste. The study revealed the highest and differential ability of Pleurotus florida and Pseudomonas spp. for biosorption and bioleaching of copper and iron. This can be attributed to bio-catalysis by the laccase enzyme. For both P. florida and Pseudomonas spp. on the 20th day of incubation, laccase exhibited higher specific activity (6.98 U/mg and 5.98 U/mg, respectively) than other microbial cultures. The biomass loaded with Cu2+ and Fe2+ ions after biosorption was used for the desorption process for recovery. The test cultures exhibited variable copper recovery efficiencies varying between 10.5 and 18.0%. Protein characterization through SDS-PAGE of four promising microbial cultures exhibited a higher number of bands in E-waste as compared with microbial cultures without E-waste. The surface topography studies of the E-waste substrate showed etching, as well as deposition of vegetative and spore cells on the surfaces of PCB cards. The EDX studies of the E-waste showed decreases in metal element content (% wt/% atom basis) on microbial treatment from the respective initial concentrations present in non-treated samples, which established the bioleaching phenomenon. Therefore, these microbial cultures can be utilized to develop a biological remediation method to manage E-waste.
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Góralczyk-Bińkowska A, Długoński A, Bernat P, Długoński J, Jasińska A. Environmental and molecular approach to dye industry waste degradation by the ascomycete fungus Nectriella pironii. Sci Rep 2021; 11:23829. [PMID: 34903810 PMCID: PMC8669018 DOI: 10.1038/s41598-021-03446-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/26/2021] [Indexed: 11/15/2022] Open
Abstract
Textile industry effluents and landfill leachate contain chemicals such as dyes, heavy metals and aromatic amines characterized by their mutagenicity, cytotoxicity and carcinogenicity. The aim of the present study was investigation of the ascomycete fungus N. pironii isolated from urban postindustrial textile green space for its ability to grow and retain metabolic activity in the presence of the dye industry waste. Research focused mainly on dyes, heavy metals and aromatic amines, which had been detected in landfill leachate via HPLC-MS/MS analysis. Presence of all tested compounds as well as leachate in the growth medium clearly favored the growth of fungal biomass. Only slight growth limitation was observed in the presence of 50 mg L-1 o-tolidine. The fungus eliminated o-tolidine as well as dyes at all tested concentrations. The presence of metals slightly influenced the decolorization of the azo dyes; however, it was still similar to 90%. During fungal growth, o-tolidine was hydroxylated and/or converted to toluidine and its derivatives. Laccase and cytochrome P450 involvement in this process has been revealed. The results presented in the paper provide a valuable background for the development of a fungus-based system for the elimination of toxic pollutants generated by the textile industry.
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Affiliation(s)
- Aleksandra Góralczyk-Bińkowska
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Street, 90-237, Łódź, Poland
| | - Andrzej Długoński
- Institute of Biological Sciences, Faculty of Biology and Environmental Sciences, Cardinal Stefan Wyszyński University in Warsaw, 1/3 Wóycickiego Street, 01-938, Warsaw, Poland
| | - Przemysław Bernat
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Street, 90-237, Łódź, Poland
| | - Jerzy Długoński
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Street, 90-237, Łódź, Poland.
| | - Anna Jasińska
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Street, 90-237, Łódź, Poland.
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Investigation of the Biocontrol Potential of Two Ash Endophytes against Hymenoscyphus fraxineus Using In Vitro Plant–Fungus Dual Cultures. FORESTS 2021. [DOI: 10.3390/f12121750] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Development of effective biocontrol procedures using ash endophytes to combat an ash pathogen Hymenoscyphus fraxineus would be an appropriate contribution to the ongoing effort to protect European ash stands against ash decline. In this study we investigated the biocontrol potential of two ash endophytes, Thielavia basicola and Minimidochium sp., against H. fraxineus using in vitro plant-fungus and fungus-fungus dual cultures approach in three biocontrol models. The tests aimed to determine whether the endophytes show antagonism toward Fraxinus excelsior and F. pennsylvanica, to assess the level of antagonism of the endophytes toward H. fraxineus and to identify potential secondary metabolites induced by the presence of H. fraxineus. The results that dual culture experiments modeled according to our design may be a very useful tool to precisely study biocontrol potential of fungi, i.e., without the impact of environmental factors. Such experiments also enable the selection of most resistant ash genotypes and rapid propagation, producing large numbers of pathogen-free seedlings. It should be noted, however, that both of the endophytes tested in the dual cultures strongly inhibited the growth of H. fraxineus. Their growth under the influence of callus/seedlings was also inhibited. Comparison of HPLC profiles showed that the presence of H. fraxineus in the post-culture medium induced the production of an unknown secondary metabolite in this species. Such results suggest that some of the plant–fungus combinations examined in this study may have potential to be developed as biocontrol methods, thus increasing the survivability of ash stands under natural conditions.
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Bains A, Chawla P, Kaur S, Najda A, Fogarasi M, Fogarasi S. Bioactives from Mushroom: Health Attributes and Food Industry Applications. MATERIALS 2021; 14:ma14247640. [PMID: 34947237 PMCID: PMC8706457 DOI: 10.3390/ma14247640] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/02/2021] [Accepted: 12/08/2021] [Indexed: 11/30/2022]
Abstract
It is well-known that the utilization of mushrooms as therapeutic agents is not new. Over the past years, they have been used by local individuals as food, as well as medicines, throughout the world. Nowadays, mushrooms are excessively used in the medicine, pharmacy, food, and fermentation fields as well. Wild mushrooms are of particular interest, especially Trametes versicolor (commonly known as turkey mushrooms) due to their various uses in the food and pharmaceutical industries. They represent not only a huge storehouse of vitamins, minerals, and dietary fiber, but they are also an important source of bioactive polysaccharides. They are widely used in traditional oriental therapies. The fruiting bodies are used in the preparation of health tonics and tea. The present review is necessary to explore more about this mushroom-like classical taxonomy, morphology, nutritional value, bioactivity, various health attributes, mechanism of bioactive components against various diseases, and food applications. The influence of processing processes on the nutritional properties and bioactivity of the fungus is discussed. Potential bioactive components promising health attributes of Trametes versicolor are extensively described. Additionally, several in vivo and in vitro studies have demonstrated the beneficial effects of polysaccharopeptides (PSP) and Polysaccharide-K (PSK) on the aspects related to immune function and inflammation, also presenting an anticancerous effect. Moreover, PSP and PSK were successfully described to decrease several life-threatening diseases. The potential food applications of Trametes versicolor were detailed to signify the effective utilization of the mushroom in functional food formulation.
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Affiliation(s)
- Aarti Bains
- Department of Biotechnology, CT Institute of Pharmaceutical Sciences, South Campus, Jalandhar 144020, India;
| | - Prince Chawla
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara 144411, India;
- Correspondence: (P.C.); (M.F.); (S.Z.)
| | - Sawinder Kaur
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara 144411, India;
| | - Agnieszka Najda
- Department of Vegetable and Heerbal Crops, University of Life Science in Lublin, 50A Doświadczalna Street, 20-280 Lublin, Poland;
| | - Melinda Fogarasi
- Department of Food Engineering, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Calea Mănăstur 3–5, 400372 Cluj-Napoca, Romania
- Correspondence: (P.C.); (M.F.); (S.Z.)
| | - Szabolcs Fogarasi
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, 11 Arany Janos Street, 400028 Cluj-Napoca, Romania
- Correspondence: (P.C.); (M.F.); (S.Z.)
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Bhattacharya S, Das A, Krishnan K, Patil NA, Sadique J. Co-substrate-mediated utilization of high concentration of phenol by Aspergillus niger FP7 and reduction of its phytotoxicity on Vigna radiata L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:64030-64038. [PMID: 33890222 DOI: 10.1007/s11356-021-13947-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
Phenol and its derivatives behave as mutagens, teratogens and carcinogens inducing adverse physiological effects and are considered environmental hazards. The present study focuses on high concentration phenol utilization by Aspergillus niger FP7 under various physicochemical parameters. The soil remediation potential of the culture for reducing phenol toxicity against Vigna radiata L. seed germination was also evaluated along with the extent of phenol utilization using high-performance liquid chromatography. Aspergillus niger FP7 showed phenol tolerance up to 1000 mg/l, beyond which there was a sharp reduction in phenol utilization. Supplementation of the mineral salt medium with glucose and peptone and application of a 100 rpm agitation rate enhanced phenol utilization (up to 88.3%). Phenol utilization efficiency decreased (up to 29.6%) when cadmium and mercury salts were present, but the same improved (59.4-75.5%) by the incorporation of cobalt, copper and zinc salts. Vigna radiata L. seeds sown in the non-augmented soil revealed a 3.27% germination index, and with fungal augmentation, the germination index improved (97.3%). The non-augmented soil demonstrated 3.1% phenol utilization, while for the augmented soil, the utilization was 79.3%. Based on the phytotoxicity study and chromatographic analysis, it could be inferred that Aspergillus niger FP7 significantly enhanced phenol utilization in soil. In the future, Aspergillus niger FP7 could be of potential use in bioremediation of sites polluted with high concentrations of phenol.
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Affiliation(s)
- Sourav Bhattacharya
- Department of Microbiology, School of Sciences, JAIN (Deemed-to-be University), 18/3, 9th Main, 3rd Block, Jayanagar, Bangalore, Karnataka, 560011, India.
| | - Arijit Das
- Department of Microbiology, School of Sciences, JAIN (Deemed-to-be University), 18/3, 9th Main, 3rd Block, Jayanagar, Bangalore, Karnataka, 560011, India
| | - Kavitha Krishnan
- Department of Microbiology, School of Sciences, JAIN (Deemed-to-be University), 18/3, 9th Main, 3rd Block, Jayanagar, Bangalore, Karnataka, 560011, India
| | - Nischita A Patil
- Department of Microbiology, School of Sciences, JAIN (Deemed-to-be University), 18/3, 9th Main, 3rd Block, Jayanagar, Bangalore, Karnataka, 560011, India
| | - Jaffar Sadique
- Department of Microbiology, School of Sciences, JAIN (Deemed-to-be University), 18/3, 9th Main, 3rd Block, Jayanagar, Bangalore, Karnataka, 560011, India
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Degradation of Lignocelluloses Cocoa Shell (Theobroma cacao L.) by Various Types of Mould Treatments. J FOOD QUALITY 2021. [DOI: 10.1155/2021/6127029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Lignocellulose can be degraded by lignocellulolytic microorganisms such as moulds. The purpose of the study was to obtain the right type of moulds in degrading lignocellulose on the cocoa shell powder. The study used a completely randomized design method using four treatments of different types of mould (Trichoderma viride, Neurospora sitophila, Aspergillus niger, and Rhizopus oryzae) towards cocoa shell powder fermentation. Solid fermentation of cocoa shell powder was carried out for 5 days in an incubator with a temperature of 30°C for T. viride, N. sitophila, and R. oryzae, while A. niger of 35°C. The fermented substrate was then dried in a cabinet oven with a temperature of 50°C for 4 days. Tests of lignin, cellulose, and hemicellulose were performed towards the treatments by the Chesson method, while the moisture content test was performed using the AOAC method. Degradation of fermented cocoa shell powder has shown a significant effect on moisture, lignin, cellulose, and hemicellulose contents. Trichoderma viride resulted in the highest lignocellulose degradation compared with the other treatments. The percentage decrease of lignin content is up to 46.69 wt%; while cellulose of 22.59 wt%; and hemicellulose is about 19.41 wt% from the initial lignin weight.
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Nuskern L, Tkalec M, Srezović B, Ježić M, Gačar M, Ćurković-Perica M. Laccase Activity in Fungus Cryphonectria parasitica Is Affected by Growth Conditions and Fungal-Viral Genotypic Interactions. J Fungi (Basel) 2021; 7:958. [PMID: 34829245 PMCID: PMC8620238 DOI: 10.3390/jof7110958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/06/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022] Open
Abstract
Laccase activity reduction in the chestnut blight fungus Cryphonectria parasitica usually accompanies the hypovirulence caused by the infection of fungus with Cryphonectria hypovirus 1 (CHV1). However, the different methods utilized for assessing this phenomenon has produced varied and often conflicting results. Furthermore, the majority of experimental setups included only one prototypic system, further confounding the results. Considering the diversity of fungal isolates, viral strains, and variability of their effects on the phytopathogenic process observed in nature, our goal was to ascertain if laccase activity variability is affected by (1) different C. parasitica isolates infected with several CHV1 strains, and (2) growth conditions. We have demonstrated that some CHV1 strains, contrary to previous assumptions, increase the activity of C. parasitica laccases. The specific fungal isolates used in the experiments and culture conditions also affected the results. Furthermore, we showed that two commonly used laccase substrates, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) and 2,4-dimethoxyphenol, cannot be used interchangeably in C. parasitica laccase activity measurements. Our results illustrate the importance of conducting this type of study in experimental systems and culture conditions that resemble natural conditions as much as possible to be able to infer the most relevant conclusions applicable to natural populations.
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Affiliation(s)
- Lucija Nuskern
- Department of Biology, Division of Microbiology, Faculty of Science, University of Zagreb, Marulićev trg 9a, 10000 Zagreb, Croatia; (L.N.); (B.S.); (M.J.); (M.G.)
| | - Mirta Tkalec
- Department of Biology, Division of Botany, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia;
| | - Bruno Srezović
- Department of Biology, Division of Microbiology, Faculty of Science, University of Zagreb, Marulićev trg 9a, 10000 Zagreb, Croatia; (L.N.); (B.S.); (M.J.); (M.G.)
| | - Marin Ježić
- Department of Biology, Division of Microbiology, Faculty of Science, University of Zagreb, Marulićev trg 9a, 10000 Zagreb, Croatia; (L.N.); (B.S.); (M.J.); (M.G.)
| | - Martina Gačar
- Department of Biology, Division of Microbiology, Faculty of Science, University of Zagreb, Marulićev trg 9a, 10000 Zagreb, Croatia; (L.N.); (B.S.); (M.J.); (M.G.)
| | - Mirna Ćurković-Perica
- Department of Biology, Division of Microbiology, Faculty of Science, University of Zagreb, Marulićev trg 9a, 10000 Zagreb, Croatia; (L.N.); (B.S.); (M.J.); (M.G.)
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Adebayo EA, Azeez MA, Alao MB, Oke AM, Aina DA. Fungi as veritable tool in current advances in nanobiotechnology. Heliyon 2021; 7:e08480. [PMID: 34901509 PMCID: PMC8640478 DOI: 10.1016/j.heliyon.2021.e08480] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/06/2021] [Accepted: 11/22/2021] [Indexed: 12/26/2022] Open
Abstract
Fungi have great prospects for synthesis, applications and developing new products in nanotechnology. In recent times, fungi use in nanotechnology is gaining more attention because of the ecological friendly state of their metabolite-mediated nanoparticles, their safety, amenability and applications in diverse fields. The diversity of the metabolites such as enzymes, polysaccharide, polypeptide, protein and other macro-molecules has made fungi a veritable tool for nanoparticles synthesis. Mechanism of fungal nano-biosynthesis from the molecular perspective has been extensively studied through various investigations on its green synthesized metal nanoparticles. Fungal nanobiotechnology has been applied in agricultural, medical and industrial sectors for goods and services improvement and delivery to mankind. Agriculturally, it has found applications in plant disease management and production of environmentally friendly, non-toxic insecticides, fungicides to enhance agricultural production in general. Medically, diagnosis and treatment of diseases, especially of microbial origin have been improved with fungal nanoparticles through more efficient drug delivery systems with great benefits to pharmaceutical industries. This review therefore explored fungal nanobiotechnology; mechanism of synthesis, characterization and potential applications in various fields of human endeavours for goods and services delivery.
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Affiliation(s)
- Elijah A. Adebayo
- Department of Pure and Applied Biology, Ladoke Akintola University, P.M.B 4000, Ogbomoso, Nigeria
- LAUTECH Nanotechnology Research Group, Nigeria
| | - Musibau A. Azeez
- Department of Pure and Applied Biology, Ladoke Akintola University, P.M.B 4000, Ogbomoso, Nigeria
- LAUTECH Nanotechnology Research Group, Nigeria
| | - Micheal B. Alao
- Department of Pure and Applied Biology, Ladoke Akintola University, P.M.B 4000, Ogbomoso, Nigeria
| | - Abel M. Oke
- Department of Pure and Applied Biology, Ladoke Akintola University, P.M.B 4000, Ogbomoso, Nigeria
| | - Daniel A. Aina
- Department of Microbiology, Babcock University, Ilishan-Remo, Ogun State, Nigeria
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Sharma N, Leung IKH. Characterisation and optimisation of a novel laccase from Sulfitobacter indolifex for the decolourisation of organic dyes. Int J Biol Macromol 2021; 190:574-584. [PMID: 34506861 DOI: 10.1016/j.ijbiomac.2021.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/19/2021] [Accepted: 09/01/2021] [Indexed: 11/25/2022]
Abstract
Laccases are multi‑copper oxidases that possess the potential for industrial wastewater treatments. In this study, a putative laccase from Sulfitobacter indolifex was recombinantly produced and characterised. The enzyme was found to be stable and active at low to ambient temperature and across a range of pH conditions. The ability of the putative bacterial laccase to catalyse the decolourisation of seven common industrial dyes was also examined. Our results showed that the putative laccase could efficiently decolourise Indigo Carmine, Coomassie Brilliant Blue R-250, Congo Red, Malachite Green and Alizarin in the presence of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) as a redox mediator. Furthermore, the use of enzyme immobilisation technology to improve the operational stability and reusability of the putative laccase was also investigated. We found that immobilising the enzyme through the cross-linked enzyme aggregate method significantly improved its tolerance towards extreme pH as well as the presence of organic solvents. This work expands the arsenal of bacterial laccases available for the bioremediation of dye-containing wastewater.
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Affiliation(s)
- Nabangshu Sharma
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland 1142, New Zealand
| | - Ivanhoe K H Leung
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland 1142, New Zealand; Centre for Green Chemical Science, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland 1142, New Zealand; School of Chemistry, The University of Melbourne, Parkville, VIC 3010, Australia; Bio21 Molecular Science & Biotechnology Institute, The University of Melbourne, Parkville, VIC 3010, Australia.
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Cheng CM, Patel AK, Singhania RR, Tsai CH, Chen SY, Chen CW, Dong CD. Heterologous expression of bacterial CotA-laccase, characterization and its application for biodegradation of malachite green. BIORESOURCE TECHNOLOGY 2021; 340:125708. [PMID: 34391187 DOI: 10.1016/j.biortech.2021.125708] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Malachite green (MG) is used as fungicide/parasiticide in aquaculture, its persistence is detrimental as it exhibits carcinogenic effects to aquatic organisms. Bacterial laccase evaluated as the best enzyme at extreme condition for aquatic MG removal. Study aims to increase laccase concentration, CotA-laccase from Bacillus subtilis was cloned and overexpressed in Escherichia coli. Optimal catalysis for purified CotA-laccase were at pH 5.0, 60 °C, and 1 mM of (2,2-azino-di-[3-ethylbenzothiazoline-sulphonate-(6)]) with Km and Kcat 0.087 mM and 37.64 S-1 respectively. MG biodegradation by CotA-laccase in clam and tilapia pond wastewaters and cytotoxic effect of biodegraded products in grouper fin-1 cells were determined. MG degradation by CotA-laccase was equally efficient, exhibiting upto 90-94% decolorization at freshwater and saline conditions and treated solution was non-toxic to GF-1 cells. Thus, recombinant-CotA-laccase could be an environmentally-friendly enzyme for aquaculture to remove MG, thereby effective to reduce its accumulation in aquatic organisms and ensuring safe aquaculture products.
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Affiliation(s)
- Chiu-Min Cheng
- Department and Graduate Institute of Aquaculture, National Kaohsiung University of Science and Technology, Taiwan
| | - Anil Kumar Patel
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Reeta Rani Singhania
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Cheng-Hsian Tsai
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Shen-Yi Chen
- Department of Safety, Health, and Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Cheng Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan.
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Ademakinwa AN. A heat-resistant intracellular laccase immobilized via cross-linked enzyme aggregate preparation: Characterization, application in bisphenol A removal and phytotoxicity evaluation. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126480. [PMID: 34218192 DOI: 10.1016/j.jhazmat.2021.126480] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Aureobasidium pullulans laccase was immobilized via cross-linked enzyme aggregate (CLEA) and deployed in bisphenol-A (BPA) removal. The immobilization and BPA removal processes were mathematically modeled. The CLEA-treated BPA was evaluated for phytotoxicity. The optimum conditions for CLEA resulting in the highest immobilization yield were ammonium sulfate (60% w/v), glutaraldehyde (30 mM), pH (4.5), time (6 h) and temperature (45 °C). The CLEA retained about 56% of its activity after twelve catalytic cycles. The optimum pH and temperature of the laccase CLEA were 5.5 and 60 °C respectively. The SEM indicated that the laccase CLEA was type II (unstructured). The data obtained from the heat inactivation kinetics and thermodynamic characterization indicated that the CLEA was stable to heat denaturation than the free enzyme. The kinetic parameters obtained for the CLEA with ABTS as substrate were 101.3 µM, 2.94 µmols-1 mg-1 and 0.03 dm3 s-1 mg-1 for the Km, Kcat and Kcat/Km respectively. The optimum conditions for BPA removal using the CLEA were temperature (30 °C), time (2 h), CLEA (1.0 mg) and BPA concentration (40 mg/L). After the 7th cycle, BPA removal by the laccase CLEA was 63 ± 2.3%. From the germination index values obtained, the CLEA-treated BPA solution showed no phytotoxicity to germinated S. bicolor seeds compared to the untreated (BPA-only) solutions.
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Majumdar S, Bhowal J. Studies on production and evaluation of biopigment and synthetic dye decolorization capacity of laccase produced by A. oryzae cultivated on agro-waste. Bioprocess Biosyst Eng 2021; 45:45-60. [PMID: 34591164 DOI: 10.1007/s00449-021-02638-z] [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: 03/01/2021] [Accepted: 09/10/2021] [Indexed: 11/29/2022]
Abstract
The present study investigated the screening of mono and co-culture fungal cultivations for laccase production using extracted lignin as the substrate obtained from cauliflower wastes by two different pretreatment methods. Amongst mono and mixed culture fungal cultivations, monoculture of Aspergillus oryzae exhibited the highest enzymatic activity of 29.7 ± 0.6 U mL-1 under submerged conditions and using alkali extracted lignin as substrate. Under the optimal conditions (pH 4.5, 30 °C, 12 days, 1% (w/v) lignin and 0.5 mM Cu2+ concentration) the maximum laccase activity was estimated to be 41.3 ± 2.8 U mL-1 and production yield of 153.3 ± 2.4 mg L-1. Maximum decolorization of pigment extracted from Aspergillus heteromorphus CBS 117.55 cultivated culture media was achieved by administration of 40 U g-1 of crude enzyme concentration. Thermal and pH stability of crude laccase was observed over wide ranges. The dye decolorization efficiency of crude A. oryzae laccase was studied and Congo Red exhibited maximum decolorization percentage (64 ± 1.3%) at 15 µM, 50 °C and pH 4.5. The kinetic study of different dye (Congo Red) concentrations obtained Vmax and Km values of 0.123 × 10-3 M and 0.724 mol L-1 min-1, respectively.
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Affiliation(s)
- Sayari Majumdar
- School of Community Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India
| | - Jayati Bhowal
- School of Community Science and Technology, Indian Institute of Engineering Science and Technology, Shibpur, India.
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Wang T, Chang D, Huang D, Liu Z, Wu Y, Liu H, Yuan H, Jiang Y. Application of surfactants in papermaking industry and future development trend of green surfactants. Appl Microbiol Biotechnol 2021; 105:7619-7634. [PMID: 34559284 DOI: 10.1007/s00253-021-11602-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 11/25/2022]
Abstract
In this work, the application of chemical surfactants, including cooking aids, detergents, surface sizing agents, and deinking agents as core components, is introduced in the wet end of pulping and papermaking. This method for the combined application of enzymes and surfactants has expanded, promoting technological updates and improving the effect of surfactants in practical applications. Finally, the potential substitution of green surfactants for chemical surfactants is discussed. The source, classification, and natural functions of green surfactants are introduced, including plant extracts, biobased surfactants, fermentation products, and woody biomass. These green surfactants have advantages over their chemically synthesized counterparts, such as their low toxicity and biodegradability. This article reviews the latest developments in the application of surfactants in different paper industry processes and extends the methods of use. Additionally, the application potential of green surfactants in the field of papermaking is discussed. KEY POINTS: • Surfactants as important chemical additives in papermaking process are reviewed. • Deinking technologies by combined of surfactants and enzymes are reviewed. • Applications of green surfactant in papermaking industry are prospected.
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Affiliation(s)
- Tengfei Wang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China. .,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.
| | - Dejun Chang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Di Huang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China. .,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.
| | - Zetong Liu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Yukang Wu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Hongling Liu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Haibo Yuan
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
| | - Yi Jiang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong, China
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Wiśniewska KM, Twarda-Clapa A, Białkowska AM. Novel Cold-Adapted Recombinant Laccase KbLcc1 from Kabatiella bupleuri G3 IBMiP as a Green Catalyst in Biotransformation. Int J Mol Sci 2021; 22:9593. [PMID: 34502503 PMCID: PMC8431773 DOI: 10.3390/ijms22179593] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022] Open
Abstract
Cold-adapted enzymes are useful tools in the organic syntheses conducted in mixed aqueous-organic or non-aqueous solvents due to their molecular flexibility that stabilizes the proteins in low water activity environments. A novel psychrophilic laccase gene from Kabatiella bupleuri, G3 IBMiP, was spliced by Overlap-Extension PCR (OE-PCR) and expressed in Pichia pastoris. Purified recombinant KbLcc1 laccase has an optimal temperature of 30 °C and pH of 3.5, 5.5, 6.0, and 7.0 in the reaction with 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), guaiacol, sinapic acid, and syringaldazine, respectively. Moreover, laccase KbLcc1 is highly thermolabile, as it loses 40% of activity after 30 min at 40 °C and is inactivated at 50 °C after the same period of incubation. The new enzyme remained active with 1 mM of Ni2+, Cu2+, Mn2+, and Zn2+ and with 2 mM of Co2+, Ca2+, and Mg2+, but Fe2+ greatly inhibited the laccase activity. Moreover, 1% ethanol had no impact on KbLcc1, although acetone and ethyl acetate decreased the laccase activity. The presence of hexane (40%, v/v) caused a 58% increase in activity. Laccase KbLcc1 could be applied in the decolorization of synthetic dyes and in the biotransformation of ferulic acid to vanillin. After 5 days of reaction at 20 °C, pH 3.5, with 1 mM ABTS as a mediator, the vanillin concentration was 21.9 mg/L and the molar yield of transformation reached 14.39%.
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Affiliation(s)
| | | | - Aneta M. Białkowska
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Łódź, Poland; (K.M.W.); (A.T.-C.)
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Sun Y, Liu ZL, Hu BY, Chen QJ, Yang AZ, Wang QY, Li XF, Zhang JY, Zhang GQ, Zhao YC. Purification and Characterization of a Thermo- and pH-Stable Laccase From the Litter-Decomposing Fungus Gymnopus luxurians and Laccase Mediator Systems for Dye Decolorization. Front Microbiol 2021; 12:672620. [PMID: 34413835 PMCID: PMC8369832 DOI: 10.3389/fmicb.2021.672620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/07/2021] [Indexed: 11/13/2022] Open
Abstract
An extracellular laccase (GLL) was purified from fermentation broth of the litter-decomposing fungus Gymnopus luxurians by four chromatography steps, which resulted in a high specific activity of 118.82 U/mg, purification fold of 41.22, and recovery rate of 42.05%. It is a monomeric protein with a molecular weight of 64 kDa and N-terminal amino acid sequence of AIGPV TDLHI, suggesting that GLL is a typical fungal laccase. GLL demonstrated an optimum temperature range of 55°C-65°C and an optimum pH 2.2 toward 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). It displayed considerably high thermostability and pH stability with about 63% activity retained after 24 h at 50°C, and 86% activity retained after 24 h at pH 2.2, respectively. GLL was significantly enhanced in the presence of K+, Na+, and Mg2+ ions. It demonstrated K m of 539 μM and k cat /K m of 140 mM-1⋅s-1 toward ABTS at pH 2.2 and 37°C. Acetosyringone (AS) and syringaldehyde (SA) were the optimal mediators of GLL (0.4 U/ml) for dye decolorization with decolorization rates of about 60%-90% toward 11 of the 14 synthetic dyes. The optimum reaction conditions were determined to be mediator concentration of 0.1 mM, temperature range of 25°C -60°C, and pH 4.0. The purified laccase was the first laccase isolated from genus Gymnopus with high thermostability, pH stability, and effective decolorization toward dyes, suggesting that it has potentials for textile and environmental applications.
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Affiliation(s)
- Yue Sun
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
- Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, China
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Zi-Lu Liu
- Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, China
| | - Bo-Yang Hu
- Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, China
| | - Qing-Jun Chen
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Ai-Zhen Yang
- Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, China
| | - Qiu-Ying Wang
- Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, China
| | - Xiao-Feng Li
- Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, China
| | - Jia-Yan Zhang
- Key Laboratory for Northern Urban Agriculture of Ministry of Agriculture and Rural Affairs, College of Bioscience and Resources Environment, Beijing University of Agriculture, Beijing, China
| | - Guo-Qing Zhang
- Beijing Key Laboratory for Agricultural Application and New Technique, Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Yong-Chang Zhao
- Institute of Biotechnology and Germplasmic Resource, Yunnan Academy of Agricultural Sciences, Kunming, China
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