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Saberi Riseh R, Fathi F, Lagzian A, Vatankhah M, Kennedy JF. Modifying lignin: A promising strategy for plant disease control. Int J Biol Macromol 2024; 271:132696. [PMID: 38823737 DOI: 10.1016/j.ijbiomac.2024.132696] [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: 03/09/2024] [Revised: 05/02/2024] [Accepted: 05/26/2024] [Indexed: 06/03/2024]
Abstract
Lignin is a complex polymer found in the cell walls of plants, providing structural support and protection against pathogens. By modifying lignin composition and structure, scientists aim to optimize plant defense responses and increase resistance to pathogens. This can be achieved through various genetic engineering techniques which involve manipulating the genes responsible for lignin synthesis. By either up regulating or down regulating specific genes, researchers can alter the lignin content, composition, or distribution in plant tissues. Reducing lignin content in specific tissues like leaves can improve the effectiveness of defense mechanisms by allowing for better penetration of antimicrobial compounds. Overall, Lignin modification through techniques has shown promising results in enhancing various plants resistance against pathogens. Furthermore, lignin modification can have additional benefits beyond pathogen resistance. It can improve biomass processing for biofuel production by reducing lignin recalcitrance, making the extraction of sugars from cellulose more efficient. The complexity of lignin biosynthesis and its interactions with other plant components make it a challenging target for modification. Additionally, the potential environmental impact and regulatory considerations associated with genetically modified organisms (GMOs) require careful evaluation. Ongoing research aims to further optimize this approach and develop sustainable solutions for crop protection.
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Affiliation(s)
- Roohallah Saberi Riseh
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, 7718897111 Rafsanjan, Iran.
| | - Fariba Fathi
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, 7718897111 Rafsanjan, Iran
| | - Arezoo Lagzian
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, 7718897111 Rafsanjan, Iran
| | - Masoumeh Vatankhah
- Department of Plant Protection, Faculty of Agriculture, Vali-e-Asr University of Rafsanjan, 7718897111 Rafsanjan, Iran
| | - John F Kennedy
- Chembiotech Laboratories Ltd, WR15 8FF Tenbury Wells, United Kingdom.
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Bari E, Far MG, Daniel G, Bozorgzadeh Y, Ribera J, Aghajani H, Hosseinpourpia R. Fungal behavior and recent developments in biopulping technology. World J Microbiol Biotechnol 2024; 40:207. [PMID: 38767733 DOI: 10.1007/s11274-024-03992-2] [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: 01/05/2024] [Accepted: 04/17/2024] [Indexed: 05/22/2024]
Abstract
Biological pretreatment of wood chips by fungi is a well-known approach prior to mechanical- or chemical pulp production. For this biological approach, a limited number of white-rot fungi with an ability to colonize and selectively degrade lignin are used to pretreat wood chips allowing the remaining cellulose to be processed for further applications. Biopulping is an environmentally friendly technology that can reduce the energy consumption of traditional pulping processes. Fungal pretreatment also reduces the pitch content in the wood chips and improves the pulp quality in terms of brightness, strength, and bleachability. The bleached biopulps are easier to refine compared to pulps produced by conventional methodology. In the last decades, biopulping has been scaled up with pilot trials towards industrial level, with optimization of several intermediate steps and improvement of economic feasibility. Nevertheless, fundamental knowledge on the biochemical mechanisms involved in biopulping is still lacking. Overall, biopulping technology has advanced rapidly during recent decades and pilot mill trials have been implemented. The use of fungi as pretreatment for pulp production is in line with modern circular economy strategies and can be implemented in existing production plants. In this review, we discuss some recent advances in biopulping technology, which can improve mechanical-, chemical-, and organosolv pulping processes along with their mechanisms.
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Affiliation(s)
- Ehsan Bari
- Department of Wood Sciences and Engineering, Technical and Vocational University (TVU), Tehran, Iran.
| | - Mohammad Ghorbanian Far
- Department of Wood Sciences and Engineering, Technical and Vocational University (TVU), Tehran, Iran
| | - Geoffrey Daniel
- Department of Forest Biomaterial and Technology/Wood Science, Swedish University of Agricultural Sciences, 75007, Uppsala, Sweden
| | - Younes Bozorgzadeh
- Department of Wood Engineering and Technology, Gorgan University of Agriculture Sciences and Natural Resources, Gorgan, 4913815739, Iran
| | - Javier Ribera
- Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain
| | - Hamed Aghajani
- Department of Forest Science and Engineering, Sari Agricultural Science and Natural Resources University, Sari, Iran
| | - Reza Hosseinpourpia
- Department of Forestry and Wood Technology, Linnaeus University, Georg Lückligs Plats 1, 35195, Växjö, Sweden.
- College of Forest Resources and Environmental Science, Michigan Technological University, Houghton, MI, 49931, USA.
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Thakur M, Yadav V, Kumar Y, Pramanik A, Dubey KK. How to deal with xenobiotic compounds through environment friendly approach? Crit Rev Biotechnol 2024:1-20. [PMID: 38710611 DOI: 10.1080/07388551.2024.2336527] [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: 04/13/2023] [Accepted: 03/13/2024] [Indexed: 05/08/2024]
Abstract
Every year, a huge amount of lethal compounds, such as synthetic dyes, pesticides, pharmaceuticals, hydrocarbons, etc. are mass produced worldwide, which negatively affect soil, air, and water quality. At present, pesticides are used very frequently to meet the requirements of modernized agriculture. The Food and Agriculture Organization of the United Nations (FAO) estimates that food production will increase by 80% by 2050 to keep up with the growing population, consequently pesticides will continue to play a role in agriculture. However, improper handling of these highly persistent chemicals leads to pollution of the environment and accumulation in food chain. These effects necessitate the development of technologies to eliminate or degrade these pollutants. Degradation of these compounds by physical and chemical processes is expensive and usually results in secondary compounds with higher toxicity. The biological strategies proposed for the degradation of these compounds are both cost-effective and eco-friendly. Microbes play an imperative role in the degradation of xenobiotic compounds that have toxic effects on the environment. This review on the fate of xenobiotic compounds in the environment presents cutting-edge insights and novel contributions in different fields. Microbial community dynamics in water bodies, genetic modification for enhanced pesticide degradation and the use of fungi for pharmaceutical removal, white-rot fungi's versatile ligninolytic enzymes and biodegradation potential are highlighted. Here we emphasize the factors influencing bioremediation, such as microbial interactions and carbon catabolism repression, along with a nuanced view of challenges and limitations. Overall, this review provides a comprehensive perspective on the bioremediation strategies.
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Affiliation(s)
- Mony Thakur
- Department of Microbiology, Central University of Haryana, Mahendergarh, India
| | - Vinod Yadav
- Department of Microbiology, Central University of Haryana, Mahendergarh, India
| | - Yatin Kumar
- Department of Microbiology, Central University of Haryana, Mahendergarh, India
| | - Avijit Pramanik
- Department of Microbiology, Central University of Haryana, Mahendergarh, India
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Choi J, Kim H, Ahn YR, Kim M, Yu S, Kim N, Lim SY, Park JA, Ha SJ, Lim KS, Kim HO. Recent advances in microbial and enzymatic engineering for the biodegradation of micro- and nanoplastics. RSC Adv 2024; 14:9943-9966. [PMID: 38528920 PMCID: PMC10961967 DOI: 10.1039/d4ra00844h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 03/19/2024] [Indexed: 03/27/2024] Open
Abstract
This review examines the escalating issue of plastic pollution, specifically highlighting the detrimental effects on the environment and human health caused by microplastics and nanoplastics. The extensive use of synthetic polymers such as polyethylene (PE), polyethylene terephthalate (PET), and polystyrene (PS) has raised significant environmental concerns because of their long-lasting and non-degradable characteristics. This review delves into the role of enzymatic and microbial strategies in breaking down these polymers, showcasing recent advancements in the field. The intricacies of enzymatic degradation are thoroughly examined, including the effectiveness of enzymes such as PETase and MHETase, as well as the contribution of microbial pathways in breaking down resilient polymers into more benign substances. The paper also discusses the impact of chemical composition on plastic degradation kinetics and emphasizes the need for an approach to managing the environmental impact of synthetic polymers. The review highlights the significance of comprehending the physical characteristics and long-term impacts of micro- and nanoplastics in different ecosystems. Furthermore, it points out the environmental and health consequences of these contaminants, such as their ability to cause cancer and interfere with the endocrine system. The paper emphasizes the need for advanced analytical methods and effective strategies for enzymatic degradation, as well as continued research and development in this area. This review highlights the crucial role of enzymatic and microbial strategies in addressing plastic pollution and proposes methods to create effective and environmentally friendly solutions.
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Affiliation(s)
- Jaewon Choi
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Hongbin Kim
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Yu-Rim Ahn
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Minse Kim
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Seona Yu
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Nanhyeon Kim
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Su Yeon Lim
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Jeong-Ann Park
- Department of Environmental Engineering, Kangwon National University Chuncheon 24341 Republic of Korea
| | - Suk-Jin Ha
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Kwang Suk Lim
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
| | - Hyun-Ouk Kim
- Division of Chemical Engineering and Bioengineering, College of Art, Culture and Engineering, Kangwon National University Chuncheon Korea
- Department of Smart Health Science and Technology, Kangwon National University Chuncheon Korea
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Guo C, Fan L, Yang Q, Ning M, Zhang B, Ren X. Characterization and mechanism of simultaneous degradation of aflatoxin B 1 and zearalenone by an edible fungus of Agrocybe cylindracea GC-Ac2. Front Microbiol 2024; 15:1292824. [PMID: 38414775 PMCID: PMC10897045 DOI: 10.3389/fmicb.2024.1292824] [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: 09/12/2023] [Accepted: 01/30/2024] [Indexed: 02/29/2024] Open
Abstract
Contamination with multiple mycotoxins is a major issue for global food safety and trade. This study focused on the degradation of aflatoxin B1 (AFB1) and zearalenone (ZEN) by 8 types of edible fungi belonging to 6 species, inclulding Agaricus bisporus, Agrocybe cylindracea, Cyclocybe cylindracea, Cyclocybe aegerita, Hypsizygus marmoreus and Lentinula edodes. Among these fungi, Agrocybe cylindracea strain GC-Ac2 was shown to be the most efficient in the degradation of AFB1 and ZEN. Under optimal degradation conditions (pH 6.0 and 37.4°C for 37.9 h), the degradation rate of both AFB1 and ZEN reached over 96%. Through the analysis of functional detoxification components, it was found that the removal of AFB1 and ZEN was primarily degraded by the culture supernatant of the fungus. The culture supernatant exhibited a maximum manganese peroxidase (MnP) activity of 2.37 U/mL. Interestingly, Agrocybe cylindracea strain GC-Ac2 also showed the capability to degrade other mycotoxins in laboratory-scale mushroom substrates, including 15A-deoxynivalenol, fumonisin B1, B2, B3, T-2 toxin, ochratoxin A, and sterigmatocystin. The mechanism of degradation of these mycotoxins was speculated to be catalyzed by a complex enzyme system, which include MnP and other ligninolytic enzymes. It is worth noting that Agrocybe cylindracea can degrade multiple mycotoxins and produce MnP, which is a novel and significant discovery. These results suggest that this candidate strain and its enzyme system are expected to become valuable biomaterials for the simultaneous degradation of multiple mycotoxins.
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Affiliation(s)
- Changying Guo
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety, Jinan, China
| | - Lixia Fan
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety, Jinan, China
| | - Qingqing Yang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Mingxiao Ning
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety, Jinan, China
| | - Bingchun Zhang
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety, Jinan, China
| | - Xianfeng Ren
- Institute of Quality Standard and Testing Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, China
- Shandong Provincial Key Laboratory of Test Technology on Food Quality and Safety, Jinan, China
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Silva MC, de Castro AA, Lopes KL, Ferreira IFL, Bretz RR, Ramalho TC. Combining computational tools and experimental studies towards endocrine disruptors mitigation: A review of biocatalytic and adsorptive processes. CHEMOSPHERE 2023; 344:140302. [PMID: 37788749 DOI: 10.1016/j.chemosphere.2023.140302] [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: 08/03/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/05/2023]
Abstract
The endocrine disruptors (EDCs) are an important group of emerging contaminants, and their mitigation has been a huge challenge due to their chemistry complexity and variety of these compounds. The traditional treatments are inefficient to completely remove EDCs, and adsorptive processes are the major alternative investigated on their removal. Also, the use of EDCs degrading enzymes has been encouraged due to ecofriendly approach of biocatalytic processes. This paper highlights the occurrence, classification, and toxicity of EDCs with special focus in the use of enzyme-based and adsorptive technologies in the elimination of EDCs from ambiental matrices. Numerous prior reviews have focused on the discussions toward these technologies. However, the literature lacks theoretical discussions about important aspects of these methods such as the mechanisms of EDCs adsorption on the adsorbent surface or the interactions between degrading enzymes - EDCs. In this sense, theoretical calculations combined to experimental studies may help in the development of more efficient technologies to EDCs mitigation. In this review, we point out how computational tools such as molecular docking and molecular dynamics have to contribute to the design of new adsorbents and efficient catalytic processes towards endocrine disruptors mitigation.
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Affiliation(s)
- Maria Cristina Silva
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil.
| | | | - Karla Lara Lopes
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil
| | - Igor F Lara Ferreira
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil
| | - Raphael Resende Bretz
- Department of Natural Sciences (DCNAT), Federal University of São João del-Rei, São João del Rei, Brazil
| | - Teodorico C Ramalho
- Department of Chemistry, Federal University of Lavras, Lavras, Brazil; Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
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Bautista-Zamudio PA, Flórez-Restrepo MA, López-Legarda X, Monroy-Giraldo LC, Segura-Sánchez F. Biodegradation of plastics by white-rot fungi: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165950. [PMID: 37536592 DOI: 10.1016/j.scitotenv.2023.165950] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 07/18/2023] [Accepted: 07/30/2023] [Indexed: 08/05/2023]
Abstract
Plastic pollution is one of the most environmental problems in the last two centuries, because of their excessive usage and their rapidly increasing production, which overcome the ability of natural degradation. Moreover, this problem become an escalating environmental issue caused by inadequate disposal, ineffective or nonexistent waste collection methods, and a lack of appropriate measures to deal with the problem, such as incineration and landfilling. Consequently, plastic wastes have become so ubiquitous and have accumulated in the environment impacting ecosystems and wildlife. The above, enhances the urgent need to explore alternative approaches that can effectively reduce waste without causing harsh environmental consequences. For example, white-rot fungi are a promising alternative to deal with the problem. These fungi produce ligninolytic enzymes able to break down the molecular structures of plastics, making them more bioavailable and allowing their degradation process, thereby mitigating waste accumulation. Over the years, several research studies have focused on the utilization of white-rot fungi to degrade plastics. This review presents a summary of plastic degradation biochemistry by white-rot fungi and the function of their ligninolytic enzymes. It also includes a collection of different research studies involving white-rot fungi to degrade plastic, their enzymes, the techniques used and the obtained results. Also, this highlights the significance of pre-treatments and the study of plastic blends with natural fibers or metallic ions, which have shown higher levels of degradation. Finally, it raises the limitations of the biotechnological processes and the prospects for future studies.
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Affiliation(s)
- Paula Andrea Bautista-Zamudio
- Grupo Biopolimer, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia UdeA, Calle 70 No. 52 - 21, Medellín 050010, Colombia
| | - María Alejandra Flórez-Restrepo
- Grupo Biopolimer, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia UdeA, Calle 70 No. 52 - 21, Medellín 050010, Colombia
| | - Xiomara López-Legarda
- Grupo Biopolimer, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia UdeA, Calle 70 No. 52 - 21, Medellín 050010, Colombia.
| | - Leidy Carolina Monroy-Giraldo
- Grupo Biopolimer, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia UdeA, Calle 70 No. 52 - 21, Medellín 050010, Colombia
| | - Freimar Segura-Sánchez
- Grupo Biopolimer, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquia UdeA, Calle 70 No. 52 - 21, Medellín 050010, Colombia
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Liu X, Ding S, Gao F, Wang Y, Taherzadeh MJ, Wang Y, Qin X, Wang X, Luo H, Yao B, Huang H, Tu T. Exploring the cellulolytic and hemicellulolytic activities of manganese peroxidase for lignocellulose deconstruction. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:139. [PMID: 37726830 PMCID: PMC10507950 DOI: 10.1186/s13068-023-02386-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 08/24/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND A cost-effective pretreatment and saccharification process is a necessary prerequisite for utilizing lignocellulosic biomass (LCB) in biofuel and biomaterials production. Utilizing a multifunctional enzyme with both pretreatment and saccharification functions in a single step for simultaneous biological pretreatment and saccharification process (SPS) will be a green method of low cost and high efficiency. Manganese peroxidase (MnP, EC 1.11.1.13), a well-known lignin-degrading peroxidase, is generally preferred for the biological pretreatment of biomass. However, exploring the role and performance of MnP in LCB conversion will promote the application of MnP for lignocellulose-based biorefineries. RESULTS In this study, we explored the ability of an MnP from Moniliophthora roreri, MrMnP, in LCB degradation. With Mn2+ and H2O2, MrMnP decomposed 5.0 g/L carboxymethyl cellulose to 0.14 mM of reducing sugar with a conversion yield of 5.0 mg/g, including 40 μM cellobiose, 70 μM cellotriose, 20 μM cellotetraose, and 10 μM cellohexaose, and degraded 1.0 g/L mannohexaose to 0.33 μM mannose, 4.08 μM mannotriose, and 4.35 μM mannopentaose. Meanwhile, MrMnP decomposed 5.0 g/L lichenan to 0.85 mM of reducing sugar with a conversion yield of 30.6 mg/g, including 10 μM cellotriose, 20 μM cellotetraose, and 80 μM cellohexose independently of Mn2+ and H2O2. Moreover, the versatility of MrMnP in LCB deconstruction was further verified by decomposing locust bean gum and wheat bran into reducing sugars with a conversion yield of 54.4 mg/g and 29.5 mg/g, respectively, including oligosaccharides such as di- and tri-saccharides. The catalytic mechanism underlying MrMnP degraded lignocellulose was proposed as that with H2O2, MrMnP oxidizes Mn2+ to Mn3+. Subsequently, it forms a complex with malonate, facilitating the degradation of CMC and mannohexaose into reducing sugars. Without H2O2, MrMnP directly oxidizes malonate to hydroperoxyl acetic acid radical to form compound I, which then attacks the glucosidic bond of lichenan. CONCLUSION This study identified a new function of MrMnP in the hydrolysis of cellulose and hemicellulose, suggesting that MrMnP exhibits its versatility in the pretreatment and saccharification of LCB. The results will lead to an in-depth understanding of biocatalytic saccharification and contribute to forming new enzymatic systems for using lignocellulose resources to produce sustainable and economically viable products and the long-term development of biorefinery, thereby increasing the productivity of LCB as a green resource.
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Affiliation(s)
- Xiaoqing Liu
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Sunjia Ding
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Fang Gao
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yaru Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | | | - Yuan Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xing Qin
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiaolu Wang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Huiying Luo
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Bin Yao
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Huoqing Huang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Tao Tu
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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De Filippis F, Bonelli M, Bruno D, Sequino G, Montali A, Reguzzoni M, Pasolli E, Savy D, Cangemi S, Cozzolino V, Tettamanti G, Ercolini D, Casartelli M, Caccia S. Plastics shape the black soldier fly larvae gut microbiome and select for biodegrading functions. MICROBIOME 2023; 11:205. [PMID: 37705113 PMCID: PMC10500907 DOI: 10.1186/s40168-023-01649-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 07/16/2023] [Indexed: 09/15/2023]
Abstract
BACKGROUND In the last few years, considerable attention has been focused on the plastic-degrading capability of insects and their gut microbiota in order to develop novel, effective, and green strategies for plastic waste management. Although many analyses based on 16S rRNA gene sequencing are available, an in-depth analysis of the insect gut microbiome to identify genes with plastic-degrading potential is still lacking. RESULTS In the present work, we aim to fill this gap using Black Soldier Fly (BSF) as insect model. BSF larvae have proven capability to efficiently bioconvert a wide variety of organic wastes but, surprisingly, have never been considered for plastic degradation. BSF larvae were reared on two widely used plastic polymers and shotgun metagenomics was exploited to evaluate if and how plastic-containing diets affect composition and functions of the gut microbial community. The high-definition picture of the BSF gut microbiome gave access for the first time to the genomes of culturable and unculturable microorganisms in the gut of insects reared on plastics and revealed that (i) plastics significantly shaped bacterial composition at species and strain level, and (ii) functions that trigger the degradation of the polymer chains, i.e., DyP-type peroxidases, multicopper oxidases, and alkane monooxygenases, were highly enriched in the metagenomes upon exposure to plastics, consistently with the evidences obtained by scanning electron microscopy and 1H nuclear magnetic resonance analyses on plastics. CONCLUSIONS In addition to highlighting that the astonishing plasticity of the microbiota composition of BSF larvae is associated with functional shifts in the insect microbiome, the present work sets the stage for exploiting BSF larvae as "bioincubators" to isolate microbial strains and enzymes for the development of innovative plastic biodegradation strategies. However, most importantly, the larvae constitute a source of enzymes to be evolved and valorized by pioneering synthetic biology approaches. Video Abstract.
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Affiliation(s)
- Francesca De Filippis
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
- Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
| | - Marco Bonelli
- Department of Biosciences, University of Milan, Milan, Italy
| | - Daniele Bruno
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Giuseppina Sequino
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - Aurora Montali
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Marcella Reguzzoni
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Edoardo Pasolli
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
- Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy
| | - Davide Savy
- Interdepartmental Research Centre of Nuclear Magnetic Resonance for the Environment, Agri-Food and New Materials (CERMANU), University of Naples Federico II, Portici, Italy
| | - Silvana Cangemi
- Interdepartmental Research Centre of Nuclear Magnetic Resonance for the Environment, Agri-Food and New Materials (CERMANU), University of Naples Federico II, Portici, Italy
| | - Vincenza Cozzolino
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
- Interdepartmental Research Centre of Nuclear Magnetic Resonance for the Environment, Agri-Food and New Materials (CERMANU), University of Naples Federico II, Portici, Italy
| | - Gianluca Tettamanti
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
- Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology (BAT Center), University of Naples Federico II, Portici, Italy
| | - Danilo Ercolini
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy.
- Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy.
| | - Morena Casartelli
- Department of Biosciences, University of Milan, Milan, Italy.
- Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology (BAT Center), University of Naples Federico II, Portici, Italy.
| | - Silvia Caccia
- Task Force on Microbiome Studies, University of Naples Federico II, Naples, Italy.
- Department of Biosciences, University of Milan, Milan, Italy.
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10
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Pradeep Kumar V, Sridhar M, Ashis Kumar S, Bhatta R. Elucidating the role of media nitrogen in augmenting the production of lignin-depolymerizing enzymes by white-rot fungi. Microbiol Spectr 2023; 11:e0141923. [PMID: 37655898 PMCID: PMC10581151 DOI: 10.1128/spectrum.01419-23] [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: 04/10/2023] [Accepted: 06/28/2023] [Indexed: 09/02/2023] Open
Abstract
Indigenous white-rot fungal isolates Schizophyllum commune, Phanerochaete chrysosporium, Ganoderma racenaceum, and Lentinus squarrosulus, demonstrating the ability to depolymerize lignin of the crop residues, were studied for their potential to produce ligninolytic enzymes using modified production media under conditions of limiting and excess nitrogen for higher enzymatic expressions. Secretome-rich media on the investigation confirmed the successful production of lignin-depolymerizing enzymes, viz. laccase, lignin peroxidase, manganese peroxidase, and versatile peroxidase. Production of laccases and peroxidases was statistically significant in nitrogen-limiting media with and without the substrate, across all white-rot fungal cultures at 95% confidence interval. Nitrogen-limiting media with the substrate on analysis extracellularly expressed 99.27 U of laccase and 68.48 U of manganese peroxidase in Schizophyllum commune, while 195.14 U of lignin peroxidase was produced by Phanerochaete chrysosporium. Lentinus squarrosulus expressed 455.34 U of laccase and 357.13 U of versatile peroxidase with 250.09 U of laccase and 206.95 U of manganese peroxidase produced by Ganoderma racenaceum for every milliliter of the media used. Nitrogen-limiting media triggered the production of laccase during the initial stages of growth while the expression of peroxidases was predominant at a later stage. Also, this media evinced increased enzymatic yields with low biomass content compared to nitrogen-excess conditions. The extant study confirmed the positive influence of nitrogen-limiting media in the efficient production of ligninolytic enzymes and their suggestive degradation potential for environmental pollutants, making these enzymes a safe, clean alternative to the use of chemicals and the media to be effective for large-scale production of ligninolytic enzymes. IMPORTANCE Lignin on account of its high abundance, complex polymeric structure, and biochemical properties is identified as a promising candidate in renewable energy and bioproduct manufacturing. However, depolymerization of lignin remains a major challenge in lignin utilization, entailing the employment of harsh treatments representing not only an environmental concern but also a waste of economic potential. Developing an alternative green technology to minimize this impact is imperative. Methods using enzymes to depolymerize lignin are the focus of recent studies. Current research work emphasized the efficient expression of the major lignin-depolymerizing enzymes: laccases, lignin peroxidases, manganese peroxidases, and versatile peroxidases from native isolates of white-rot fungus for several biotechnological applications as well as treatment of crop residues for use as ruminant feed in improving productivity. The importance of nitrogen in augmenting the expression of lignin-depolymerizing enzymes and providing a media recipe for the cost-effective production of ligninolytic enzymes is highlighted.
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Affiliation(s)
- Vidya Pradeep Kumar
- National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, Karnataka, India
| | - Manpal Sridhar
- National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, Karnataka, India
| | - Samanta Ashis Kumar
- National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, Karnataka, India
| | - Raghavendra Bhatta
- National Institute of Animal Nutrition and Physiology, Adugodi, Bangalore, Karnataka, India
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11
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Kumar N, He J, Rusling JF. Electrochemical transformations catalyzed by cytochrome P450s and peroxidases. Chem Soc Rev 2023; 52:5135-5171. [PMID: 37458261 DOI: 10.1039/d3cs00461a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Cytochrome P450s (Cyt P450s) and peroxidases are enzymes featuring iron heme cofactors that have wide applicability as biocatalysts in chemical syntheses. Cyt P450s are a family of monooxygenases that oxidize fatty acids, steroids, and xenobiotics, synthesize hormones, and convert drugs and other chemicals to metabolites. Peroxidases are involved in breaking down hydrogen peroxide and can oxidize organic compounds during this process. Both heme-containing enzymes utilize active FeIVO intermediates to oxidize reactants. By incorporating these enzymes in stable thin films on electrodes, Cyt P450s and peroxidases can accept electrons from an electrode, albeit by different mechanisms, and catalyze organic transformations in a feasible and cost-effective way. This is an advantageous approach, often called bioelectrocatalysis, compared to their biological pathways in solution that require expensive biochemical reductants such as NADPH or additional enzymes to recycle NADPH for Cyt P450s. Bioelectrocatalysis also serves as an ex situ platform to investigate metabolism of drugs and bio-relevant chemicals. In this paper we review biocatalytic electrochemical reactions using Cyt P450s including C-H activation, S-oxidation, epoxidation, N-hydroxylation, and oxidative N-, and O-dealkylation; as well as reactions catalyzed by peroxidases including synthetically important oxidations of organic compounds. Design aspects of these bioelectrocatalytic reactions are presented and discussed, including enzyme film formation on electrodes, temperature, pH, solvents, and activation of the enzymes. Finally, we discuss challenges and future perspective of these two important bioelectrocatalytic systems.
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Affiliation(s)
- Neeraj Kumar
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3136, USA.
| | - Jie He
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3136, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269-3136, USA
| | - James F Rusling
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3136, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269-3136, USA
- Department of Surgery and Neag Cancer Center, Uconn Health, Farmington, CT 06030, USA
- School of Chemistry, National University of Ireland at Galway, Galway, Ireland
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12
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Okal EJ, Heng G, Magige EA, Khan S, Wu S, Ge Z, Zhang T, Mortimer PE, Xu J. Insights into the mechanisms involved in the fungal degradation of plastics. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115202. [PMID: 37390726 DOI: 10.1016/j.ecoenv.2023.115202] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/13/2023] [Accepted: 06/27/2023] [Indexed: 07/02/2023]
Abstract
Fungi are considered among the most efficient microbial degraders of plastics, as they produce salient enzymes and can survive on recalcitrant compounds with limited nutrients. In recent years, studies have reported numerous species of fungi that can degrade different types of plastics, yet there remain many gaps in our understanding of the processes involved in biodegradation. In addition, many unknowns need to be resolved regarding the fungal enzymes responsible for plastic fragmentation and the regulatory mechanisms which fungi use to hydrolyse, assimilate and mineralize synthetic plastics. This review aims to detail the main methods used in plastic hydrolysis by fungi, key enzymatic and molecular mechanisms, chemical agents that enhance the enzymatic breakdown of plastics, and viable industrial applications. Considering that polymers such as lignin, bioplastics, phenolics, and other petroleum-based compounds exhibit closely related characteristics in terms of hydrophobicity and structure, and are degraded by similar fungal enzymes as plastics, we have reasoned that genes that have been reported to regulate the biodegradation of these compounds or their homologs could equally be involved in the regulation of plastic degrading enzymes in fungi. Thus, this review highlights and provides insight into some of the most likely regulatory mechanisms by which fungi degrade plastics, target enzymes, genes, and transcription factors involved in the process, as well as key limitations to industrial upscaling of plastic biodegradation and biological approaches that can be employed to overcome these challenges.
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Affiliation(s)
- Eyalira Jacob Okal
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China
| | - Gui Heng
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Ephie A Magige
- University of Chinese Academy of Sciences, Beijing 100049, China; CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Sehroon Khan
- Department of Biotechnology, Faculty of Natural Sciences, University of Science and Technology Bannu, 28100 Bannu, Khyber Pakhtunkhwa, Pakistan
| | - Shixi Wu
- Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang 441003, Hubei, China
| | - Zhiqiang Ge
- Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang 441003, Hubei, China
| | - Tianfu Zhang
- Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang 441003, Hubei, China
| | - Peter E Mortimer
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
| | - Jianchu Xu
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, China.
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13
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Thacharodi A, Hassan S, Hegde TA, Thacharodi DD, Brindhadevi K, Pugazhendhi A. Water a major source of endocrine-disrupting chemicals: An overview on the occurrence, implications on human health and bioremediation strategies. ENVIRONMENTAL RESEARCH 2023; 231:116097. [PMID: 37182827 DOI: 10.1016/j.envres.2023.116097] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/24/2023] [Accepted: 05/09/2023] [Indexed: 05/16/2023]
Abstract
Endocrine disrupting chemicals (EDCs) are toxic compounds that occur naturally or are the output of anthropogenic activities that negatively impact both humans and wildlife. A number of diseases are associated with these disruptors, including reproductive disorders, cardiovascular disorders, kidney disease, neurological disorders, autoimmune disorders, and cancer. Due to their integral role in pharmaceuticals and cosmetics, packaging companies, agro-industries, pesticides, and plasticizers, the scientific awareness on natural and artificial EDCs are increasing. As these xenobiotic compounds tend to bioaccumulate in body tissues and may also persist longer in the environment, the concentrations of these organic compounds may increase far from their original point of concentrations. Water remains as the major sources of how humans and animals are exposed to EDCs. However, these toxic compounds cannot be completely biodegraded nor bioremediated from the aqueous medium with conventional treatment strategies thereby requiring much more efficient strategies to combat EDC contamination. Recently, genetically engineered microorganism, genome editing, and the knowledge of protein and metabolic engineering has revolutionized the field of bioremediation thereby helping to breakdown EDCs effectively. This review shed lights on understanding the importance of aquatic mediums as a source of EDCs exposure. Furthermore, the review sheds light on the consequences of these EDCs on human health as well as highlights the importance of different remediation and bioremediation approaches. Particular attention is paid to the recent trends and perspectives in order to attain sustainable approaches to the bioremediation of EDCs. Additionally, rigorous restrictions to preclude the discharge of estrogenic chemicals into the environment should be followed in efforts to combat EDC pollution.
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Affiliation(s)
- Aswin Thacharodi
- Department of Biochemistry, University of Otago, Dunedin, 9054, New Zealand; Thacharodi's Laboratories, Department of Research and Development, Puducherry, 605005, India
| | - Saqib Hassan
- Future Leaders Mentoring Fellow, American Society for Microbiology, Washington, 20036, USA; Department of Microbiology, School of Life Sciences, Pondicherry University, Puducherry, 605014, India
| | - Thanushree A Hegde
- Civil Engineering Department, NMAM Institute of Technology, Nitte, Karnataka, 574110, India
| | - Dhanya Dilip Thacharodi
- Thacharodi's Laboratories, Department of Research and Development, Puducherry, 605005, India
| | - Kathirvel Brindhadevi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam
| | - Arivalagan Pugazhendhi
- Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam.
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14
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Ekeoma BC, Ekeoma LN, Yusuf M, Haruna A, Ikeogu CK, Merican ZMA, Kamyab H, Pham CQ, Vo DVN, Chelliapan S. Recent Advances in the Biocatalytic Mitigation of Emerging Pollutants: A Comprehensive Review. J Biotechnol 2023; 369:14-34. [PMID: 37172936 DOI: 10.1016/j.jbiotec.2023.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/25/2023] [Accepted: 05/09/2023] [Indexed: 05/15/2023]
Abstract
The issue of environmental pollution has been worsened by the emergence of new contaminants whose morphology is yet to be fully understood. Several techniques have been adopted to mitigate the pollution effects of these emerging contaminants, and bioremediation involving plants, microbes, or enzymes has stood out as a cost-effective and eco-friendly approach. Enzyme-mediated bioremediation is a very promising technology as it exhibits better pollutant degradation activity and generates less waste. However, this technology is subject to challenges like temperature, pH, and storage stability, in addition to recycling difficulty as it is arduous to isolate them from the reaction media. To address these challenges, the immobilization of enzymes has been successfully applied to ameliorate the activity, stability, and reusability of enzymes. Although this has significantly increased the uses of enzymes over a wide range of environmental conditions and facilitated the use of smaller bioreactors thereby saving cost, it still comes with additional costs for carriers and immobilization. Additionally, the existing immobilization methods have their individual limitations. This review provides state-of-the-art information to readers focusing on bioremediation using enzymes. Different parameters such as: the sustainability of biocatalysts, the ecotoxicological evaluation of transformation contaminants, and enzyme groups used were reviewed. The efficacy of free and immobilized enzymes, materials and methods for immobilization, bioreactors used, challenges to large-scale implementation, and future research needs were thoroughly discussed.
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Affiliation(s)
- Bernard Chukwuemeka Ekeoma
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama, 35487, USA
| | - Leonard Nnamdi Ekeoma
- Department of Pharmacy, Nnamdi Azikiwe University, Agulu Campus, Anambra State, Nigeria
| | - Mohammad Yusuf
- Institute of Hydrocarbon Recovery, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia.
| | - Abdurrashid Haruna
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, 32610, Malaysia; Department of Chemistry, Ahmadu Bello University Zaria-Nigeria
| | | | - Zulkifli Merican Aljunid Merican
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, 32610, Malaysia; Institute of Contaminant Management, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, 32610, Malaysia
| | - Hesam Kamyab
- Faculty of Architecture and Urbanism, UTE University, Calle Rumipamba S/N and Bourgeois, Quito, Ecuador; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, India; Process Systems Engineering Centre (PROSPECT), Faculty of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia.
| | - Cham Q Pham
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 755414, Vietnam
| | - Dai-Viet N Vo
- Centre of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam.
| | - Shreeshivadasan Chelliapan
- Engineering Department, Razak Faculty of Technology & Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
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15
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Lu M, Wen T, Guo M, Li Q, Peng X, Zhang Y, Lu Z, Wang J, Xu Y, Zhang C. Regulation of Intracellular Reactive Oxygen Species Levels after the Development of Phallus rubrovolvatus Rot Disease Due to Trichoderma koningii Mycoparasitism. J Fungi (Basel) 2023; 9:jof9050525. [PMID: 37233236 DOI: 10.3390/jof9050525] [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: 03/22/2023] [Revised: 04/21/2023] [Accepted: 04/22/2023] [Indexed: 05/27/2023] Open
Abstract
Phallus rubrovolvatus is a unique mushroom used for medicinal and dietary purposes in China. In recent years, however, the rot disease of P. rubrovolvatus has seriously affected its yield and quality, becoming an economically important threat. In this study, samples of symptomatic tissues were collected, isolated, and identified from five major P. rubrovolvatus production regions in Guizhou Province, China. Based on combined analyses of phylogenies (ITS and EF1-α), morphological characteristics and Koch's postulates, Trichoderma koningiopsis and Trichoderma koningii were identified as the pathogenic fungal species. Among these, T. koningii exhibited stronger pathogenicity than the other strains; thus, T. koningii was used as the test strain in the follow-up experiments. Upon co-culturing T. koningii with P. rubrovolvatus, the hyphae of the two species were intertwined, and the color of the P. rubrovolvatus hyphae changed from white to red. Moreover, T. koningii hyphae were wrapped around P. rubrovolvatus hyphae, leading to their shortening and convolution and ultimately inhibiting their growth due to wrinkling; T. koningii penetrated the entire basidiocarp tissue of P. rubrovolvatus, causing serious damage to the host basidiocarp cells. Further analyses revealed that T. koningii infection resulted in the swelling of basidiocarps and significantly enhanced the activity of defense-related enzymes, such as malondialdehyde, manganese peroxidase, and polyphenol oxidase. These findings offer theoretical support for further research on the infection mechanisms of pathogenic fungi and the prevention of diseases caused by them.
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Affiliation(s)
- Meiling Lu
- School of Pharmacy, Guizhou University, Guiyang 550025, China
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
| | - Tingchi Wen
- School of Pharmacy, Guizhou University, Guiyang 550025, China
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
| | - Ming Guo
- Guizhou Jinchandashan Biotechnology Co., Ltd., Nayong 553300, China
| | - Qihua Li
- Guizhou Jinsun Biotechnology Co., Ltd., Zhijin 552100, China
| | - Xingcan Peng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
- Center of Excellence in Fungal Research, and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Yan Zhang
- School of Pharmacy, Guizhou University, Guiyang 550025, China
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
| | - Zhenghua Lu
- The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
- Guizhou Jinsun Biotechnology Co., Ltd., Zhijin 552100, China
| | - Jian Wang
- The Key Laboratory of Agricultural Bioengineering, Guizhou University, Guiyang 550025, China
| | - Yanjun Xu
- The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
| | - Chao Zhang
- School of Pharmacy, Guizhou University, Guiyang 550025, China
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Engineering Research Center of Southwest Bio-Pharmaceutical Resources, Ministry of Education, Guizhou University, Guiyang 550025, China
- The Mushroom Research Centre, Guizhou University, Guiyang 550025, China
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16
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Bilal M, Zdarta J, Jesionowski T, Iqbal HMN. Manganese peroxidases as robust biocatalytic tool - An overview of sources, immobilization, and biotechnological applications. Int J Biol Macromol 2023; 234:123531. [PMID: 36754266 DOI: 10.1016/j.ijbiomac.2023.123531] [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: 06/22/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/10/2023]
Abstract
With robust catalytic features, manganese peroxidases (MnPs) from various sources, including fungi and bacteria, have gained much consideration in many biotechnological applications with particular emphasis on environmental remediation. MnP is a heme-containing enzyme that belongs to the oxidoreductases that can catalyze the degradation of various organic pollutants, such as chlorophenols, nitroaromatic compounds, industrial dyes, and polycyclic aromatic hydrocarbons. To spotlight the MnP as biocatalytic tool, an effort has been put forward to cover the four major compartments. For instance, following a brief introduction, first, various microbial sources of MnP are discussed with examples. Second, structural attributes and biocatalytic features of MnP are given with examples. Third, different MnP immobilization strategies, including adsorption, covalent linking, entrapment, and cross-linking, are discussed with a significant motive to strengthen the enzyme's stability against diverse deactivation agents by restricting the conformational mobility of molecules. Compared to free counterparts, immobilized MnP fractions perform well in hostile environments. Finally, various biotechnological applications, such as fuel ethanol production, de-lignification, textile industry, pulp and paper industry, degradation of phenolic and non-phenolic compounds, and pharmaceutical and pesticide degradation, are briefly discussed.
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Affiliation(s)
- Muhammad Bilal
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
| | - Jakub Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico; Institute of Advanced Materials for Sustainable Manufacturing, Tecnologico de Monterrey, Monterrey 64849, Mexico.
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17
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Wang J, Yang J, Huang W, Huang W, Jia R. A mutant R70V/E166A of short manganese peroxidase showing Mn 2+-independent dye decolorization. Appl Microbiol Biotechnol 2023; 107:2303-2319. [PMID: 36843195 DOI: 10.1007/s00253-023-12438-y] [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: 11/09/2022] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/28/2023]
Abstract
Il-MnP1, a short-type manganese peroxidase from Irpex lacteus F17, can oxidize some substrates in the absence of Mn2+, but the catalysis was much lower than in the presence of Mn2+. Here, we report a mutant R70V/E166A of Il-MnP1 with some unique properties, which possessed clearly higher catalysis for the decolorization of anthraquinone and azo dyes in the absence of Mn2+ than that of Il-MnP1. Importantly, the optimum pH of R70V/E166A for decolorization of anthraquinone dyes (Reactive Blue 19, RB19) was 6.5, and the mutant achieved high decolorization activities in the range of pH 4.0-7.0, whereas Il-MnP1 only showed decolorization for RB19 at pH 3.5-4.0. In addition, the optimum H2O2 concentration of R70V/E166A for RB19 decolorization was eight times that of Il-MnP1 and the H2O2 stability has improved 1.4 times compared with Il-MnP1. Furthermore, Mn2+ competitively inhibited the oxidation of RB19 by R70V/E166A, explaining the higher catalytic activity of the mutant R70V/E166A in the absence of Mn2+. Molecular docking results suggested that RB19 binds to the distal side of the heme plane in mutant R70V/E166A, which extended from the heme δ-side to the heme γ-side, and close to the mutated residues of R70V and E166A, whereas RB19 could not access the heme pocket of Il-MnP1 due to the steric hindrance of the side-chain group of Arg 70. Thus, this study constructed a useful mutant R70V/E166A and analyzed its higher Mn2+-independent activity, which is very important for better understanding the Mn2+-independent catalytic mechanism for short manganese peroxidases. KEY POINTS: • The mutant R70V/E166A of atypical MnP1 of I. lacteus F17 shows unique catalytic properties. • At pH 6.5, the R70V/E166A had a strong ability to decolorize anthraquinone dyes in the absence of Mn2+. • The binding sites of Reactive Blue 19 in mutant R70V/E166A were elucidated.
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Affiliation(s)
- Junli Wang
- School of Life Science, Anhui University, 111 Jiulong Road, Economic and Technology Development Zone, Hefei, Anhui Province, People's Republic of China, 230601
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui Province, China
| | - Jun Yang
- School of Life Science, Anhui University, 111 Jiulong Road, Economic and Technology Development Zone, Hefei, Anhui Province, People's Republic of China, 230601
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui Province, China
| | - Wenhan Huang
- School of Life Science, Anhui University, 111 Jiulong Road, Economic and Technology Development Zone, Hefei, Anhui Province, People's Republic of China, 230601
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui Province, China
| | - Wenting Huang
- School of Life Science, Anhui University, 111 Jiulong Road, Economic and Technology Development Zone, Hefei, Anhui Province, People's Republic of China, 230601
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui Province, China
| | - Rong Jia
- School of Life Science, Anhui University, 111 Jiulong Road, Economic and Technology Development Zone, Hefei, Anhui Province, People's Republic of China, 230601.
- Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei, Anhui Province, China.
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Antony S, Antony S, Rebello S, George S, Biju DT, R R, Madhavan A, Binod P, Pandey A, Sindhu R, Awasthi MK. Bioremediation of Endocrine Disrupting Chemicals- Advancements and Challenges. ENVIRONMENTAL RESEARCH 2022; 213:113509. [PMID: 35660566 DOI: 10.1016/j.envres.2022.113509] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 05/08/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Endocrine Disrupting Chemicals (EDCs), major group of recalcitrant compounds, poses a serious threat to the health and future of millions of human beings, and other flora and fauna for years to come. A close analysis of various xenobiotics undermines the fact that EDC is structurally diverse chemical compounds generated as a part of anthropogenic advancements as well as part of their degradation. Regardless of such structural diversity, EDC is common in their ultimate drastic effect of impeding the proper functioning of the endocrinal system, basic physiologic systems, resulting in deregulated growth, malformations, and cancerous outcomes in animals as well as humans. The current review outlines an overview of various EDCs, their toxic effects on the ecosystem and its inhabitants. Conventional remediation methods such as physico-chemical methods and enzymatic approaches have been put into action as some form of mitigation measures. However, the last decade has seen the hunt for newer technologies and methodologies at an accelerated pace. Genetically engineered microbial degradation, gene editing strategies, metabolic and protein engineering, and in-silico predictive approaches - modern day's additions to our armamentarium in combating the EDCs are addressed. These additions have greater acceptance socially with lesser dissonance owing to reduced toxic by-products, lower health trepidations, better degradation, and ultimately the prevention of bioaccumulation. The positive impact of such new approaches on controlling the menace of EDCs has been outlaid. This review will shed light on sources of EDCs, their impact, significance, and the different remediation and bioremediation approaches, with a special emphasis on the recent trends and perspectives in using sustainable approaches for bioremediation of EDCs. Strict regulations to prevent the release of estrogenic chemicals to the ecosystem, adoption of combinatorial methods to remove EDC and prevalent use of bioremediation techniques should be followed in all future endeavors to combat EDC pollution. Moreover, the proper development, growth and functioning of future living forms relies on their non-exposure to EDCs, thus remediation of such chemicals present even in nano-concentrations should be addressed gravely.
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Affiliation(s)
- Sherly Antony
- Department of Microbiology, Pushpagiri Institute of Medical Sciences and Research Centre, Thiruvalla, 689 101, Kerala, India
| | - Sham Antony
- Pushpagiri Research Centre, Pushpagiri Institute of Medical Sciences and Research Centre, Thriuvalla, 689 101, Kerala, India
| | - Sharrel Rebello
- School of Food Science & Technology, Mahatma Gandhi University, Kottayam, India
| | - Sandhra George
- Pushpagiri Research Centre, Pushpagiri Institute of Medical Sciences and Research Centre, Thriuvalla, 689 101, Kerala, India
| | - Devika T Biju
- Pushpagiri Research Centre, Pushpagiri Institute of Medical Sciences and Research Centre, Thriuvalla, 689 101, Kerala, India
| | - Reshmy R
- Department of Science and Humanities, Providence College of Engineering, Chengannur, 689 122, Kerala, India
| | - Aravind Madhavan
- Rajiv Gandhi Centre for Biotechnology, Jagathy, Trivandrum, 695 014, India
| | - Parameswaran Binod
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695 019, Kerala, India
| | - Ashok Pandey
- Center for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, 226 001, India; Centre for Energy and Environmental Sustainability, Lucknow, 226 029, Uttar Pradesh, India
| | - Raveendran Sindhu
- Department of Food Technology, T K M Institute of Technology, Kollam, 691 505, Kerala, India.
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province, 712100, China.
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Saikia S, Yadav M, Hoque RA, Yadav HS. Bioremediation mediated by manganese peroxidase – An overview. BIOCATAL BIOTRANSFOR 2022. [DOI: 10.1080/10242422.2022.2113517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Shilpa Saikia
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Itanagar, India
| | - Meera Yadav
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Itanagar, India
| | - Rohida Amin Hoque
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Itanagar, India
| | - Hardeo Singh Yadav
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Itanagar, India
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Rathankumar AK, Saikia K, Cabana H, Kumar VV. Surfactant-aided mycoremediation of soil contaminated with polycyclic aromatic hydrocarbons. ENVIRONMENTAL RESEARCH 2022; 209:112926. [PMID: 35149109 DOI: 10.1016/j.envres.2022.112926] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 02/05/2022] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Remediation of persistent polycyclic aromatic hydrocarbons (PAHs) contaminated soil has become a major challenge in recent years. Further, conventional application of bioaugmentation strategies for PAHs remediation require continuous supply of microbial specific nutrients, which makes these processes less feasible. Hence, the present study focused on PAHs remediation using surfactants along with wood assisted fungal system in a microcosm set up. In this study, in absence of surfactants, a saturation in PAHs degradation was noted in bioaugmentation with wood assisted fungal system (BAW) with 61 ± 1.25% degradation, followed by bioaugmentation with free fungi system (BAF) (54 ± 0.46%). However, with addition of 1500 mg/L of surface-active compounds (SAC), a maximum PAHs degradation in BAW (100%) and BAF (86 ± 1.30%) strategies were noted on 21st day. Irrespective of the strategies, presence of SAC and rhamnolipids enhanced PAHs degradation by increasing the enzymes production in Trametes hirsuta when compared to Triton x-100 and sodium dodecyl sulphate (SDS). Among the detected PAHs, 100% degradation within 17 days was noted for naphthalene and acenaphthene in SAC-supplemented BAW system. Further, ecotoxicity analysis established showed the LC50 of sediment soil at 26.5 ± 0.24%, which was reduced by an average of 71% after soil remediation. Hence, the current microcosm system proved that the application of SAC with BAW enhanced the PAHs remediation rate, which supports its application in real time soil remediation.
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Affiliation(s)
- Abiram Karanam Rathankumar
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India; Department of Biotechnology, Faculty of Engineering, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India
| | - Kongkona Saikia
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India; Department of Biochemistry, FASH, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India
| | - Hubert Cabana
- Laboratoire de Génie de L'environnement, Faculté de Génie, Université de Sherbrooke, 2500 Boul. de L'Université, Sherbrooke, Québec, J1K 2R1, Canada
| | - Vaidyanathan Vinoth Kumar
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603 203, India.
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Yang Y, Meng G, Ni S, Zhang H, Dong C. Genomic Analysis of Stropharia rugosoannulata Reveals Its Nutritional Strategy and Application Potential in Bioremediation. J Fungi (Basel) 2022; 8:jof8020162. [PMID: 35205916 PMCID: PMC8874372 DOI: 10.3390/jof8020162] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/01/2022] [Accepted: 02/04/2022] [Indexed: 11/16/2022] Open
Abstract
Stropharia rugosoannulata is not only a popular edible mushroom, but also has excellent potential in bioremediation. In this study, we present a high-quality genome of a monokaryotic strain of the S. rugosoannulata commercial cultivar in China. The assembly yielded an N50 length of 2.96 Mb and a total size of approximately 48.33 Mb, encoding 11,750 proteins. The number of heme peroxidase-encoding genes in the genome of S. rugosoannulata was twice the average of all of the tested Agaricales. The genes encoding lignin and xenobiotic degradation enzymes accounted for more than half of the genes encoding plant cell wall degradation enzymes. The expansion of genes encoding lignin and xenobiotic degradation enzymes, and cytochrome P450 involved in the xenobiotic metabolism, were responsible for its strong bioremediation and lignin degradation abilities. S. rugosoannulata was classified as a litter-decomposing (LD) fungus, based on the analysis of the cell wall degrading enzymes. Substrate selection for fruiting body cultivation should consider both the nutritional strategy of LD and a strong lignin degradation ability. Consistent with safe usage as an edible mushroom, the S. rugosoannulata genome does not contain genes for known psilocybin biosynthesis. Genome analysis will be helpful for understanding its nutritional strategy to guide fruiting body cultivation and for providing insight into its application in bioremediation.
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Affiliation(s)
- Ying Yang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (Y.Y.); (G.M.)
| | - Guoliang Meng
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (Y.Y.); (G.M.)
| | - Shujun Ni
- Institute of Animal Husbandry Research, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; (S.N.); (H.Z.)
| | - Haifeng Zhang
- Institute of Animal Husbandry Research, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China; (S.N.); (H.Z.)
| | - Caihong Dong
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; (Y.Y.); (G.M.)
- Correspondence: ; Tel./Fax: +86-010-64806138
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Suryadi H, Judono JJ, Putri MR, Eclessia AD, Ulhaq JM, Agustina DN, Sumiati T. Biodelignification of lignocellulose using ligninolytic enzymes from white-rot fungi. Heliyon 2022; 8:e08865. [PMID: 35141441 PMCID: PMC8814692 DOI: 10.1016/j.heliyon.2022.e08865] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/17/2021] [Accepted: 01/27/2022] [Indexed: 11/25/2022] Open
Abstract
Lignocellulose is the most abundant biomass available on earth, including wood and agricultural wastes such as rice straw, corn cobs, and oil palm empty bunches. The biopolymer content in lignocellulose has a great potential as feedstock for producing industrial raw materials such as glucose, sorbitol, xylose, xylitol, and other pharmaceutical excipients. Currently, scientists and governments agree that the enzymatic delignification method is an environmentally friendly green method to be applied. This review attempts to explain the proper preparation of the enzymes laccase, lignin peroxidase, and manganese peroxidase, as well as the important factors influencing their activity. The recent applications of the enzymes for detoxification of hazardous substances, proper enzyme immobilization technique, and future prospect combination with DESs extraction of lignin are also discussed.
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Rathore S, Varshney A, Mohan S, Dahiya P. An innovative approach of bioremediation in enzymatic degradation of xenobiotics. Biotechnol Genet Eng Rev 2022; 38:1-32. [PMID: 35081881 DOI: 10.1080/02648725.2022.2027628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Worldwide, environmental pollution due to a complex mixture of xenobiotics has become a serious concern. Several xenobiotic compounds cause environmental contamination due to their severe toxicity, prolonged exposure, and limited biodegradability. From the past few decades, microbial-assisted degradation (bioremediation) of xenobiotic pollutants has evolved as the most effective, eco-friendly, and valuable approach. Microorganisms have unique metabolism, the capability of genetic modification, diversity of enzymes, and various degradation pathways necessary for the bioremediation process. Microbial xenobiotic degradation is effective but a slow process that limits its application in bioremediation. However, the study of microbial enzymes for bioremediation is gaining global importance. Microbial enzymes have a huge ability to transform contaminants into non-toxic forms and thereby reduce environmental pollution. Recently, various advanced techniques, including metagenomics, proteomics, transcriptomics, metabolomics are effectively utilized for the characterization, metabolic machinery, new proteins, metabolic genes of microorganisms involved in the degradation process. These advanced molecular techniques provide a thorough understanding of the structural and functional aspects of complex microorganisms. This review gives a brief note on xenobiotics and their impact on the environment. Particular attention will be devoted to the class of pollutants and the enzymes such as cytochrome P450, dehydrogenase, laccase, hydrolase, protease, lipase, etc. capable of converting these pollutants into innocuous products. This review attempts to deliver knowledge on the role of various enzymes in the biodegradation of xenobiotic pollutants, along with the use of advanced technologies like recombinant DNA technology and Omics approaches to make the process more robust and effective.
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Affiliation(s)
| | - Ayushi Varshney
- Amity Institute of Biotechnology, Amity University Uttar Pradesh (AUUP), Noida, India
| | - Sumedha Mohan
- Amity Institute of Biotechnology, Amity University Uttar Pradesh (AUUP), Noida, India
| | - Praveen Dahiya
- Amity Institute of Biotechnology, Amity University Uttar Pradesh (AUUP), Noida, India
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Recent Advances in Synthesis and Degradation of Lignin and Lignin Nanoparticles and Their Emerging Applications in Nanotechnology. MATERIALS 2022; 15:ma15030953. [PMID: 35160893 PMCID: PMC8838035 DOI: 10.3390/ma15030953] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/07/2022] [Accepted: 01/10/2022] [Indexed: 01/16/2023]
Abstract
Lignin is an important commercially produced polymeric material. It is used extensively in both industrial and agricultural activities. Recently, it has drawn much attention from the scientific community. It is abundantly present in nature and has significant application in the production of biodegradable materials. Its wide usage includes drug delivery, polymers and several forms of emerging lignin nanoparticles. The synthesis of lignin nanoparticles is carried out in a controlled manner. The traditional manufacturing techniques are costly and often toxic and hazardous to the environment. This review article highlights simple, safe, climate-friendly and ecological approaches to the synthesis of lignin nanoparticles. The changeable, complex structure and recalcitrant nature of lignin makes it challenging to degrade. Researchers have discovered a small number of microorganisms that have developed enzymatic and non-enzymatic metabolic pathways to use lignin as a carbon source. These microbes show promising potential for the biodegradation of lignin. The degradation pathways of these microbes are also described, which makes the study of biological synthesis much easier. However, surface modification of lignin nanoparticles is something that is yet to be explored. This review elucidates the recent advances in the biodegradation of lignin in the ecological system. It includes the current approaches, methods for modification, new applications and research for the synthesis of lignin and lignin nanoparticles. Additionally, the intricacy of lignin’s structure, along with its chemical nature, is well-described. This article will help increase the understanding of the utilization of lignin as an economical and alternative-resource material. It will also aid in the minimization of solid waste arising from lignin.
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25
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Liu J, Xu JK, Yuan H, Wang XJ, Gao SQ, Wen GB, Tan XS, Lin YW. Engineering globins for efficient biodegradation of malachite green: two case studies of myoglobin and neuroglobin. RSC Adv 2022; 12:18654-18660. [PMID: 35873322 PMCID: PMC9229271 DOI: 10.1039/d2ra02795j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 06/20/2022] [Indexed: 11/21/2022] Open
Abstract
Engineered globins such as H64D Mb and A15C/H64D Ngb were efficient in the degradation of malachite green, with activities much higher than those of some native enzymes.
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Affiliation(s)
- Jiao Liu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Jia-Kun Xu
- Key Lab of Sustainable Development of Polar Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Lab for Marine Drugs and Byproducts of Pilot National Lab for Marine Science and Technology, Qingdao 266071, China
| | - Hong Yuan
- Department of Chemistry, Institute of Biomedical Science, Fudan University, Shanghai 200433, China
| | - Xiao-Juan Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
- Laboratory of Protein Structure and Function, University of South China, Hengyang 421001, China
| | - Shu-Qin Gao
- Laboratory of Protein Structure and Function, University of South China, Hengyang 421001, China
| | - Ge-Bo Wen
- Laboratory of Protein Structure and Function, University of South China, Hengyang 421001, China
| | - Xiang-Shi Tan
- Department of Chemistry, Institute of Biomedical Science, Fudan University, Shanghai 200433, China
| | - Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
- Laboratory of Protein Structure and Function, University of South China, Hengyang 421001, China
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Chittella H, Yoon LW, Ramarad S, Lai ZW. Rubber waste management: A review on methods, mechanism, and prospects. Polym Degrad Stab 2021. [DOI: 10.1016/j.polymdegradstab.2021.109761] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Liers C, Ullrich R, Kellner H, Chi DH, Quynh DT, Luyen ND, Huong LM, Hofrichter M, Nghi DH. Bioconversion of Lignocellulosic Materials with the Contribution of a Multifunctional GH78 Glycoside Hydrolase from Xylaria polymorpha to Release Aromatic Fragments and Carbohydrates. J Microbiol Biotechnol 2021; 31:1438-1445. [PMID: 34409952 PMCID: PMC9705965 DOI: 10.4014/jmb.2106.06053] [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: 06/18/2021] [Revised: 08/06/2021] [Accepted: 08/19/2021] [Indexed: 12/15/2022]
Abstract
A bifunctional glycoside hydrolase GH78 from the ascomycete Xylaria polymorpha (XpoGH78) possesses catalytic versatility towards both glycosides and esters, which may be advantageous for the efficient degradation of the plant cell-wall complex that contains both diverse sugar residues and esterified structures. The contribution of XpoGH78 to the conversion of lignocellulosic materials without any chemical pretreatment to release the water-soluble aromatic fragments, carbohydrates, and methanol was studied. The disintegrating effect of enzymatic lignocellulose treatment can be significantly improved by using different kinds of hydrolases and phenoloxidases. The considerable changes in low (3 kDa), medium (30 kDa), and high (> 200 kDa) aromatic fragments were observed after the treatment with XpoGH78 alone or with this potent cocktail. Synergistic conversion of rape straw also resulted in a release of 17.3 mg of total carbohydrates (e.g., arabinose, galactose, glucose, mannose, xylose) per gram of substrate after incubating for 72 h. Moreover, the treatment of rape straw with XpoGH78 led to a marginal methanol release of approximately 17 μg/g and improved to 270 μg/g by cooperation with the above accessory enzymes. In the case of beech wood conversion, the combined catalysis by XpoGH78 and laccase caused an effect comparable with that of fungal strain X. polymorpha in woody cultures concerning the liberation of aromatic lignocellulose fragments.
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Affiliation(s)
- Christiane Liers
- International Graduate School of Zittau (IHI Zittau), Dresden University of Technology, D-03583 Zittau, Germany
| | - René Ullrich
- International Graduate School of Zittau (IHI Zittau), Dresden University of Technology, D-03583 Zittau, Germany
| | - Harald Kellner
- International Graduate School of Zittau (IHI Zittau), Dresden University of Technology, D-03583 Zittau, Germany
| | - Do Huu Chi
- Department of Cellular and Molecular Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka 431-3192, Japan
| | - Dang Thu Quynh
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Nguyen Dinh Luyen
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Le Mai Huong
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Martin Hofrichter
- International Graduate School of Zittau (IHI Zittau), Dresden University of Technology, D-03583 Zittau, Germany
| | - Do Huu Nghi
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam,Corresponding author Phone: +84 (0)916670188 Fax: +84 (043) 7564 390 E-mail:
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Ahsan Z, Kalsoom U, Bhatti HN, Aftab K, Khalid N, Bilal M. Enzyme-assisted bioremediation approach for synthetic dyes and polycyclic aromatic hydrocarbons degradation. J Basic Microbiol 2021; 61:960-981. [PMID: 34608659 DOI: 10.1002/jobm.202100218] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 08/06/2021] [Accepted: 09/11/2021] [Indexed: 01/25/2023]
Abstract
Environmental protection from emerging pollutants has become a significant challenge for mankind as an increasing number of contaminants, including synthetic dyes and polycyclic aromatic hydrocarbons (PAHs), represent a serious risk to ecological and environmental balance. Most synthetic dyes have complex aromatic structures and are resistant to degrade by classical approaches, such as physical and chemical processes, including adsorption, chemical coagulation, flocculation, ion exchange, membrane separation, froth flotation, and reverse osmosis. Enzymes-assisted catalytic transformation of pollutants has become a potential alternative to classical methods because of their ability to react with complex compounds, a quick degradation rate, and producing less harmful by-products. Plant peroxidases, and microbial laccase and lignin-degrading peroxidases (manganese and lignin peroxidase) have gained significant attention for treating aromatic waste due to their capability of oxidizing and detoxifying a wide range of recalcitrant xenobiotics, including PAHs and synthetic dyes. Peroxidases being efficient biocatalysts detoxify an array of toxic compounds by simple free-radical mechanism resulting in the formation of oxidized and depolymerized products of significantly reduced toxicity. Moreover, it is an ecofriendly and economically favorable approach towards the biodegradation of recalcitrant and toxic industrial waste. Among microbial and plant peroxidases, bacterial enzymes have broad substrate specificity and can transform a wide range of recalcitrant substrates. Ligninolytic enzymes oxidize the aromatic ring into quinones and acids by producing free hydroxyl radicals instead of dihydrodiols and mineralize aromatic hydrocarbon in combination with cytochrome P450, monooxygenases, and epoxide hydrolases. In the review, an attempt has been made to provide detailed knowledge about the availability of inexpensive peroxidases sources, their mechanism of action, and degradation potential. The present review summarizes the exploitation of peroxidases from plants, bacteria, and fungus (manganese peroxidase, lignin peroxidase, and laccases) for detoxification and degradation of textile dyes as well as PAHs. Conclusively, peroxidases have great potential to react with almost all classes of synthetic dyes and most PAHs due to broad substrate specificity and transformed them into less harmful metabolites.
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Affiliation(s)
- Zainab Ahsan
- Department of Chemistry, Government College Women University Faisalabad, Faisalabad, Pakistan
| | - Umme Kalsoom
- Department of Chemistry, Government College Women University Faisalabad, Faisalabad, Pakistan
| | - Haq N Bhatti
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Kiran Aftab
- Department of Chemistry, Government College University, Faisalabad, Pakistan
| | - Nasira Khalid
- Department of Chemistry, Government College Women University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
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Ijoma GN, Heri SM, Matambo TS, Tekere M. Trends and Applications of Omics Technologies to Functional Characterisation of Enzymes and Protein Metabolites Produced by Fungi. J Fungi (Basel) 2021; 7:700. [PMID: 34575737 PMCID: PMC8464691 DOI: 10.3390/jof7090700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/19/2021] [Accepted: 08/23/2021] [Indexed: 12/14/2022] Open
Abstract
Identifying and adopting industrial applications for proteins and enzymes derived from fungi strains have been at the focal point of several studies in recent times. To facilitate such studies, it is necessary that advancements and innovation in mycological and molecular characterisation are concomitant. This review aims to provide a detailed overview of the necessary steps employed in both qualitative and quantitative research using the omics technologies that are pertinent to fungi characterisation. This stems from the understanding that data provided from the functional characterisation of fungi and their metabolites is important towards the techno-economic feasibility of large-scale production of biological products. The review further describes how the functional gaps left by genomics, internal transcribe spacer (ITS) regions are addressed by transcriptomics and the various techniques and platforms utilised, including quantitive reverse transcription polymerase chain reaction (RT-qPCR), hybridisation techniques, and RNA-seq, and the insights such data provide on the effect of environmental changes on fungal enzyme production from an expressional standpoint. The review also offers information on the many available bioinformatics tools of analysis necessary for the analysis of the overwhelming data synonymous with the omics approach to fungal characterisation.
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Affiliation(s)
- Grace N. Ijoma
- Institute for the Development of Energy for African Sustainability (IDEAS), College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, UNISA, Pretoria 0001, South Africa; (S.M.H.); (T.S.M.)
| | - Sylvie M. Heri
- Institute for the Development of Energy for African Sustainability (IDEAS), College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, UNISA, Pretoria 0001, South Africa; (S.M.H.); (T.S.M.)
| | - Tonderayi S. Matambo
- Institute for the Development of Energy for African Sustainability (IDEAS), College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, UNISA, Pretoria 0001, South Africa; (S.M.H.); (T.S.M.)
| | - Memory Tekere
- Department of Environmental Science, College of Agricultural and Environmental Science, University of South Africa, P.O. Box 392, UNISA, Pretoria 0001, South Africa;
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30
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Ding Y, Cui K, Guo Z, Cui M, Chen Y. Manganese peroxidase mediated oxidation of sulfamethoxazole: Integrating the computational analysis to reveal the reaction kinetics, mechanistic insights, and oxidation pathway. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125719. [PMID: 33774358 DOI: 10.1016/j.jhazmat.2021.125719] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/09/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
In this study, manganese peroxidase (MnP) was applied to induce the in vitro oxidation of sulfamethoxazole (SMX). The results indicated that 87.04% of the SMX was transformed and followed first-order kinetics (kobs=0.438 h-1) within 6 h when 40 U L-1 of MnP was added. The reaction kinetics were investigated under different conditions, including pH, MnP activity, and H2O2 concentration. The active species Mn3+ was responsible for the oxidation of SMX, and the Mn3+ production rate was monitored to reveal the interaction among MnP, Mn3+, and SMX. By integrating the characterizations analysis of the MnP/H2O2 system with the density functional theory (DFT) calculations, the proton-coupled electron transfer (PCET) process dominated the catalytic circle of MnP and the transformation of Mn3+. Additionally, possible oxidation pathways of SMX were proposed based on single-electron transfer mechanism, which primarily included the S-N bond cleavage, the C-S bond cleavage, and one electron loss without bond breakage. It was then transformed to hydrolysis, N-H oxidation, self-coupling, and carboxylic acid coupling products. This study provides insights into the atomic-level mechanism of MnP and the transformation pathways of sulfamethoxazole, which lays a significant foundation for the potential of MnP in wastewater treatment applications.
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Affiliation(s)
- Yan Ding
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Kangping Cui
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China.
| | - Zhi Guo
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Minshu Cui
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Yihan Chen
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
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31
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Broadening the Catalytic Role of Enzymes in Cosmeceutical Sector: A Robust Tool from White Biotechnology. Catal Letters 2021. [DOI: 10.1007/s10562-021-03678-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Bilal M, Bagheri AR, Vilar DS, Aramesh N, Eguiluz KIB, Ferreira LFR, Ashraf SS, Iqbal HMN. Oxidoreductases as a versatile biocatalytic tool to tackle pollutants for clean environment – a review. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 2021. [DOI: 10.1002/jctb.6743] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering Huaiyin Institute of Technology Huaian 223003 China
| | | | - Débora S Vilar
- Graduate Program in Process Engineering Tiradentes University (UNIT) Av. Murilo Dantas, 300, Farolândia Aracaju‐Sergipe 49032‐490 Brazil
| | - Nahal Aramesh
- Department of Chemistry Yasouj University Yasouj Iran
| | - Katlin Ivon Barrios Eguiluz
- Graduate Program in Process Engineering Tiradentes University (UNIT) Av. Murilo Dantas, 300, Farolândia Aracaju‐Sergipe 49032‐490 Brazil
| | - Luiz Fernando Romanholo Ferreira
- Waste and Effluent Treatment Laboratory, Institute of Technology and Research (ITP) Tiradentes University (UNIT) Av. Murilo Dantas, 300, Farolândia Aracaju‐Sergipe 49032‐490 Brazil
| | - Syed Salman Ashraf
- Department of Chemistry College of Arts and Sciences, Khalifa University Abu Dhabi United Arab Emirates
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey School of Engineering and Sciences Monterrey 64849 Mexico
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Catucci G, Valetti F, Sadeghi SJ, Gilardi G. Biochemical features of dye‐decolorizing peroxidases: Current impact on lignin degradation. Biotechnol Appl Biochem 2020; 67:751-759. [DOI: 10.1002/bab.2015] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/26/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Gianluca Catucci
- Department of Life Sciences and Systems Biology University of Torino Torino 10123 Italy
| | - Francesca Valetti
- Department of Life Sciences and Systems Biology University of Torino Torino 10123 Italy
| | - Sheila J. Sadeghi
- Department of Life Sciences and Systems Biology University of Torino Torino 10123 Italy
| | - Gianfranco Gilardi
- Department of Life Sciences and Systems Biology University of Torino Torino 10123 Italy
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Romanholo Ferreira LF, Torres NH, de Armas RD, Fernandes CD, Vilar DDS, Aguiar MM, Pompeu GB, Monteiro RTR, Iqbal HM, Bilal M, Bharagava RN. Fungal lignin-modifying enzymes induced by vinasse mycodegradation and its relationship with oxidative stress. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101691] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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35
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Ligninolytic Enzymes Mediated Ligninolysis: An Untapped Biocatalytic Potential to Deconstruct Lignocellulosic Molecules in a Sustainable Manner. Catal Letters 2020. [DOI: 10.1007/s10562-019-03096-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Singh AK, Yadav P, Bharagava RN, Saratale GD, Raj A. Biotransformation and Cytotoxicity Evaluation of Kraft Lignin Degraded by Ligninolytic Serratia liquefaciens. Front Microbiol 2019; 10:2364. [PMID: 31824434 PMCID: PMC6881242 DOI: 10.3389/fmicb.2019.02364] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 09/30/2019] [Indexed: 02/04/2023] Open
Abstract
Various chemical compounds emerged including kraft lignin (KL) during the processes of papermaking. These chemical compounds in effluent of the paper industry have hazardous environmental impacts. KL is liable for causing pollution of aquatic and water bodies; hence, it must be minimized in order to maintain a healthy and sustainable environment. In the present study, KL degradation was performed with ligninolytic bacterium Serratia liquefaciens and we confirmed biotransformation of KL to various less polluted or harmless compounds. KL being degraded as 1000 mg/L–1 concentration with incubating 30°C for 72, 168, and 240 h, shaking at 120 rpm under laboratory conditions. We found 65% maximum degradation of KL and 62% decolorization by the treatment with S. liquefaciens for 240 h (10 days). After being the treatment of KL, clear changes were observed in its morphology (using scanning electron microscopy and stereo microscopy), hydrodynamic size (using dynamic light scattering), and the functional groups [using Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR–FTIR)]. Biotransformation of KL monitored by Gas Chromatography–Mass Spectrometry (GC–MS) revealed formation of various metabolites. In addition to degradation of KL, detoxification (involving biotransformation into various metabolites) was assessed using cytotoxicity assays 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide [MTT and calcein-acetoxymethyl (AM) assays] using a human kidney cell line (NRK-52E), which indicated improved cell survival rates (74% for the bacteria-treated KL solution treated for 240 h) compared to the control (27%). Thus, the present study suggests that bacteria S. liquefaciens might be useful in reducing the pollution of KL by transforming it into various metabolites along with cytotoxicity reduction for environmental protection.
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Affiliation(s)
- Anil Kumar Singh
- Environmental Microbiology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India.,Academy of Scientific & Innovative Research, Ghaziabad, India
| | - Pooja Yadav
- Environmental Microbiology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - Ram Naresh Bharagava
- Department of Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, India
| | | | - Abhay Raj
- Environmental Microbiology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India
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Li L, Liu B, Yang J, Zhang Q, He C, Jia R. Catalytic properties of a short manganese peroxidase from Irpex lacteus F17 and the role of Glu166 in the Mn 2+-independent activity. Int J Biol Macromol 2019; 136:859-869. [PMID: 31226373 DOI: 10.1016/j.ijbiomac.2019.06.065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/05/2019] [Accepted: 06/11/2019] [Indexed: 01/30/2023]
Abstract
Il-MnP1 (GenBank: AGO86670.2) has been confirmed by sequence analysis as a short manganese peroxidase (MnP) from Irpex lacteus F17 (CCTCC AF 2014020). To investigate the catalytic properties, the oxidation of typical aromatic substrates and the pathways of guaiacol oxidation by Il-MnP1, both in the presence and absence of Mn2+ at either pH 4.0 or pH 7.4, were analyzed. Results showed that Il-MnP1 exhibited higher oxidative activity in the presence of Mn2+ than in the absence of Mn2+ toward the majority of the selected substrates at pH 4.0. Additionally, the similar product compositions suggested that the oxidation of guaiacol mainly belongs to a series of polymeric reactions of radicals initiated by Il-MnP1, whether they were in the presence and absence of Mn2+ at either pH 4.0 or 7.4. Furthermore, two variants (E166G, E166Q) were found using site-directed mutagenesis, to improve the Mn2+-independent oxidative activity significantly. The catalytic efficiency (Kcat/Km) of E166G and E166Q in 2, 6-dimethoxyphenol oxidation was higher than Il-MnP1 by 170 and 34 times, respectively. The study revealed certain differences in catalytic properties between Mn2+ dependent and independent oxidation by Il-MnP1. More importantly, a residue (E166) was related to the Mn2+-independent activity of a short MnP.
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Affiliation(s)
- Liuqing Li
- School of Life Science, Anhui University, Hefei, Anhui Province, China; Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei,Anhui Province, China
| | - Binjie Liu
- School of Life Science, Anhui University, Hefei, Anhui Province, China; Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei,Anhui Province, China
| | - Jun Yang
- School of Life Science, Anhui University, Hefei, Anhui Province, China; Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei,Anhui Province, China
| | - Qiong Zhang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, Anhui Province, China
| | - Chao He
- School of Life Science, Anhui University, Hefei, Anhui Province, China; Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei,Anhui Province, China
| | - Rong Jia
- School of Life Science, Anhui University, Hefei, Anhui Province, China; Anhui Key Laboratory of Modern Biomanufacturing, Anhui University, Hefei,Anhui Province, China.
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Piao M, Zou D, Yang Y, Ren X, Qin C, Piao Y. Multi-Functional Laccase Immobilized Hydrogel Microparticles for Efficient Removal of Bisphenol A. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E704. [PMID: 30818844 PMCID: PMC6427804 DOI: 10.3390/ma12050704] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/17/2019] [Accepted: 02/22/2019] [Indexed: 12/16/2022]
Abstract
Hghly stable, reusable, and multi-functional biocatalytic microparticles with Laccase (Lac) enzyme (Lac/particles) were synthesized for bisphenol A (BPA) removal from aqueous solution. The Lac/particles were prepared by encapsulating Lac enzymes into poly ethylene glycol (PEG) hydrogel via the UV assisted emulsion polymerization method followed by cross linking with glutaraldehyde (GA). The obtained Lac/particles were spherical and micron sized (137⁻535 μm), presenting high enzyme entrapment efficiency of 100%, high activity recovery of 18.9%, and great stability at various pHs (3⁻7) than the free Lac. The Lac/particles could adsorb the BPA into the catalytic particles in a short time, promoting contact between BPA and enzyme, and further enzymatically degrade them without the shaking process and independent surrounding buffer solution. The Lac/particles could be reused for another round BPA adsorption and biotranformation by maintaining over 90% of BPA removal efficiency after seven times reuse. The synergistic effects of adsorption and biocatalytical reaction of Lac/particles have significant values in high efficient and cost-effective BPA removal.
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Affiliation(s)
- Mingyue Piao
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130021, China.
- College of Environmental Science and Engineering, Jilin Normoal University, 1301 Haifeng Road, Siping 136000, China.
| | - Donglei Zou
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130021, China.
| | - Yuesuo Yang
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130021, China.
- Key Laboratory of Eco-restoration of Regional Contaminated Environment, Ministry of Education, Shenyang University, Shenyang 110044, China.
| | - Xianghao Ren
- Key Laboratory of Urban Storm water System and Water Environment, Ministry of Education, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
| | - Chuanyu Qin
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130021, China.
| | - Yunxian Piao
- Key Laboratory of Groundwater Resources and Environment (Jilin University), Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130021, China.
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