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Yu H, Feng L, Abbas M, Liang X, Zhang T, Yang G, Liu Y, Xu M, An Y, Yang W. Enhancing enzymatic catalysis efficiency: Immobilizing laccase on HHSS for synergistic bisphenol A adsorption and biodegradation through optimized external surface utilization. Int J Biol Macromol 2024; 278:134586. [PMID: 39122072 DOI: 10.1016/j.ijbiomac.2024.134586] [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: 04/27/2024] [Revised: 07/27/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
Laccase, a prominent enzyme biomacromolecule, exhibits promising catalytic efficiency in degrading phenolic compounds like bisphenol A (BPA). The laccase immobilized on conventional materials frequently demonstrates restricted loading and suboptimal catalytic performance. Hence, there is a pressing need to optimized external surface utilization to enhance catalytic performance. Herein, we synthesized amino-functionalized modified silica particles with a hierarchical hollow silica spherical (HHSS) structure for laccase immobilization via crosslinking, resulting in HHSS-LE biocatalysts. Through Box-Behnken design (BBD) and response surface methodology (RSM), we achieved a remarkably high enzyme loading of up to 213.102 mg/g. The synergistic effect of adsorption by HHSS and degradation by laccase facilitated efficient removal of BPA. The HHSS-LE demonstrated superior BPA removal capabilities, with efficiencies exceeding 100 % in the 50-200 mg/L BPA concentration range. Compared to MCM-41 and solid silica spheres (SSS), HHSS showed the highest enzyme loading capacity and catalytic activity, underscoring its superior external surface utilization rate per unit mass. Remarkably, the HHSS-LE biocatalyst exhibited remarkable recyclability even after 11 successive cycles of reuse. By preparing high immobilization rate with efficient external surface utilization, this study lays the foundation for the design of universally applicable and efficient enzyme immobilization catalysts.
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Affiliation(s)
- Hongxia Yu
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Lijun Feng
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Mohamed Abbas
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260, Singapore; Refractories, Ceramics and Building Materials Department, National Research Centre, El-Behouth Str., 12622 Cairo, Egypt
| | - Xue Liang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Tianjing Zhang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Guiping Yang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Yong Liu
- Guizhou Juneng Chemical Co, Ltd, Huishui County of Guizhou Province, Huishui 550601, PR China
| | - Meisong Xu
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Yan An
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China.
| | - Wanliang Yang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119260, Singapore; Guizhou Provincial Double Carbon and Renewable Energy Technology Innovation Research Institute, Guizhou University, Guiyang 550025, China.
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Choi YJ, Eom H, Park J, Park J, Cheon S, Ro HS. Fungal Diversity in Nam River and Their Biodegradative Activities. MYCOBIOLOGY 2024; 52:102-110. [PMID: 38690029 PMCID: PMC11057473 DOI: 10.1080/12298093.2024.2324575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/25/2024] [Indexed: 05/02/2024]
Abstract
145 fungal isolates were obtained from three sampling sites situated within the Nam River basin, located in the southern region of South Korea. Through ITS sequence analysis, the fungal isolates were identified to comprise 55 species of ascomycetes and 11 species of basidiomycetes. The 55 species of ascomycetes exclusively belong to the phylum Pezizomycotina, comprising 33 species of Dothideomycetes, 6 species of Eurotiomycetes, and 16 species of Sordariomycetes. Regarding their plant pathogenicity, an investigation into the fungi's ability to penetrate solid media revealed Nigrospora chinensis as displaying the highest growth, followed by Pseudopestalotiopsis theae, various Curvularia species, Diaporthe species, and Alternaria alternata. Further research associating this penetration ability with fungal pathogenicity is deemed necessary. Among the 10 fungal species exhibiting penetration abilities, an examination of their capability to degrade biological polymers revealed that two strains of D. phaseolorum displayed exceptional polymer degradation. These strains exhibited remarkable abilities in decomposing malachite green and crystal violet, both recalcitrant dyes. This study underscores the potential utilization of fungal diversity in freshwater environments as a foundational approach to address freshwater pollution issues.
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Affiliation(s)
- Yeon Jae Choi
- Department of BioMedical Bigdata (BK21), Research Institute of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Hyerang Eom
- Department of BioMedical Bigdata (BK21), Research Institute of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Jiyeon Park
- Division of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Jelyn Park
- Division of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Seoyoung Cheon
- Department of Biochemistry, BK21 Plus and Research Institute for Veterinary Science, School of Veterinary Medicine, Seoul National University, Seoul, Korea
| | - Hyeon-Su Ro
- Department of BioMedical Bigdata (BK21), Research Institute of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
- Division of Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
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Parashiva J, Nuthan BR, Rakshith D, Satish S. Endophytic Fungi as a Promising Source of Anticancer L-Asparaginase: A Review. Curr Microbiol 2023; 80:282. [PMID: 37450223 DOI: 10.1007/s00284-023-03392-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 06/29/2023] [Indexed: 07/18/2023]
Abstract
L-asparaginase is a tetrameric enzyme from the amidohydrolases family, that catalyzes the breakdown of L-asparagine into L-aspartic acid and ammonia. Since its discovery as an anticancer drug, it is used as one of the prime chemotherapeutic agents to treat acute lymphoblastic leukemia. Apart from its use in the biopharmaceutical industry, it is also used to reduce the formation of a carcinogenic substance called acrylamide in fried, baked, and roasted foods. L-asparaginase is derived from many organisms including plants, bacteria, fungi, and actinomycetes. Currently, L-asparaginase preparations from Escherichia coli and Erwinia chrysanthemi are used in the clinical treatment of acute lymphoblastic leukemia. However, they are associated with low yield and immunogenicity problems. At this juncture, endophytic fungi from medicinal plants have gained much attention as they have several advantages over the available bacterial preparations. Many medicinal plants have been screened for L-asparaginase producing endophytic fungi and several studies have reported potent L-asparaginase producing strains. This review provides insights into fungal endophytes from medicinal plants and their significance as probable alternatives for bacterial L-asparaginase.
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Affiliation(s)
- Javaraiah Parashiva
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India
| | | | - Devaraju Rakshith
- Department of Microbiology, Yuvaraja's College, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 005, India
| | - Sreedharamurthy Satish
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India.
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Toghueo RMK, Vázquez de Aldana BR, Zabalgogeazcoa I. Diaporthe species associated with the maritime grass Festuca rubra subsp. pruinosa. Front Microbiol 2023; 14:1105299. [PMID: 36876098 PMCID: PMC9978114 DOI: 10.3389/fmicb.2023.1105299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/23/2023] [Indexed: 02/18/2023] Open
Abstract
Festuca rubra subsp. pruinosa is a perennial grass growing in sea cliffs where plants are highly exposed to salinity and marine winds, and often grow in rock fissures where soil is absent. Diaporthe species are one of the most abundant components of the root microbiome of this grass and several Diaporthe isolates have been found to produce beneficial effects in their host and other plant species of agronomic importance. In this study, 22 strains of Diaporthe isolated as endophytes from roots of Festuca rubra subsp. pruinosa were characterized by molecular, morphological, and biochemical analyses. Sequences of the nuclear ribosomal internal transcribed spacers (ITS), translation elongation factor 1-α (TEF1), beta-tubulin (TUB), histone-3 (HIS), and calmodulin (CAL) genes were analyzed to identify the isolates. A multi-locus phylogenetic analysis of the combined five gene regions led to the identification of two new species named Diaporthe atlantica and Diaporthe iberica. Diaporthe atlantica is the most abundant Diaporthe species in its host plant, and Diaporthe iberica was also isolated from Celtica gigantea, another grass species growing in semiarid inland habitats. An in vitro biochemical characterization showed that all cultures of D. atlantica produced indole-3-acetic acid and ammonium, and the strains of D. iberica produced indole 3-acetic acid, ammonium, siderophores, and cellulase. Diaporthe atlantica is closely related to D. sclerotioides, a pathogen of cucurbits, and caused a growth reduction when inoculated in cucumber, melon, and watermelon.
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Affiliation(s)
- Rufin Marie Kouipou Toghueo
- Plant-Microorganism Interaction Research Group, Institute of Natural Resources and Agrobiology of Salamanca, Consejo Superior de Investigaciones Científicas (IRNASA-CSIC), Salamanca, Spain
| | - Beatriz R Vázquez de Aldana
- Plant-Microorganism Interaction Research Group, Institute of Natural Resources and Agrobiology of Salamanca, Consejo Superior de Investigaciones Científicas (IRNASA-CSIC), Salamanca, Spain
| | - Iñigo Zabalgogeazcoa
- Plant-Microorganism Interaction Research Group, Institute of Natural Resources and Agrobiology of Salamanca, Consejo Superior de Investigaciones Científicas (IRNASA-CSIC), Salamanca, Spain
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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: 9] [Impact Index Per Article: 4.5] [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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