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Niazi AR, Ghafoor A, Mushtaq A. Systematic characterisation, and effect of nutritional and physical parameters on culturability, laccase production and dye decolorisation potential by P. pistillaris from Pakistan. Nat Prod Res 2024; 38:3519-3527. [PMID: 37665202 DOI: 10.1080/14786419.2023.2253558] [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: 02/26/2023] [Revised: 08/17/2023] [Accepted: 08/25/2023] [Indexed: 09/05/2023]
Abstract
Podaxis pistillaris is neutraceutically, cosmoceutically and medicinally recognised macrofungus. During this research work, this edible mushroom was systematically characterised. Its culturability, laccase production, and dye decolorisation potential were evaluated and optimised. Among the different media tested, PDA proved as most efficient medium for culturability of P. pistillaris. Conditions for laccase production were optimised in submerged state fermentation. Maximum laccase secretion was noted after 14th day of Incubation at 35 °C with 130 rpm and 5 pH of medium. Fructose and ammonium-phosphate was found as best carbon and nitrogen source, while wheat straw revealed as good ligno-cellulosic source for strengthening laccase production. Congo-red dye decolorisation capability by crude laccase enzyme was evaluated and found maximum decolorisation potential (92.2%) after 288h of incubation. From this pilot study, it was confirmed that this edible macrofungus has culturability, laccase production and dye decolorisation attributes that will further contribute in delignification, biosorption and bioremediation.
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Affiliation(s)
| | - Aneeqa Ghafoor
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Asma Mushtaq
- Institute of Botany, University of the Punjab, Lahore, Pakistan
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2
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Gutierrez-Rangel PC, Mayolo-Deloisa K, Torres-Acosta MA. Decisional tool development and application for techno-economic analysis of fungal laccase production. BIORESOURCE TECHNOLOGY 2024; 402:130781. [PMID: 38701986 DOI: 10.1016/j.biortech.2024.130781] [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: 02/29/2024] [Revised: 04/29/2024] [Accepted: 04/29/2024] [Indexed: 05/06/2024]
Abstract
Textile and medical effluents causing bioaccumulation and biomagnification have been successfully biodegraded by fungal laccases. Here, a decision-making tool was developed and applied to evaluate 45 different laccase production strategies which determined the best potential source from a techno-economical perspective. Laccase production cost was calculated with a fixed output of 109 enzymatic units per batch (USD$per109U) and a sensitivity analysis was performed. Results indicate that optimization of enzymatic kinetics for each organism is essential to avoid exceeding the fermentation time point at which production titer reaches its peak and, therefore, higher production costs. Overall, the most cost-effective laccase-producing strategy was obtained when using Pseudolagarobasidium acaciicola with base production cost of USD $42.46 per 109 U. This works serves as platform for decision-making to find the optimal laccase production strategy based on techno-economic parameters.
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Affiliation(s)
- Paola C Gutierrez-Rangel
- Tecnologico de Monterrey, School of Engineering and Science, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, N.L., Mexico
| | - Karla Mayolo-Deloisa
- Tecnologico de Monterrey, School of Engineering and Science, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, N.L., Mexico; Tecnologico de Monterrey, The Institute for Obesity Research, Monterrey, Mexico
| | - Mario A Torres-Acosta
- Tecnologico de Monterrey, School of Engineering and Science, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, N.L., Mexico; The Advanced Centre for Biochemical Engineering, Department of Biochemical Engineering, University College London, London WC1E 6BT, United Kingdom.
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3
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Tonato D, Brun T, Luft L, Dos Santos MSN, Drumm FC, Grassi P, Georgin J, Kuhn RC, Zabot GL, Mazutti MA. Submerged cultivation of Nigrospora sp. in batch and fed-batch modes for microbial oil production. Nat Prod Res 2024; 38:1662-1669. [PMID: 37211779 DOI: 10.1080/14786419.2023.2214946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 05/08/2023] [Indexed: 05/23/2023]
Abstract
Microbial lipids are a valuable source of potential biofuels and essential polyunsaturated fatty acids. The optimization of the fermentation conditions is a strategy that affects the total lipid concentration. The genus Nigrospora sp. has been the target of investigations based on its potential bioherbicidal action. Therefore, this study developed a strategy to maximize the biomass concentration and lipid accumulation by Nigrospora sp. in submerged fermentation. Different media compositions and process variables were investigated in shaken flasks and bioreactor in batch and fed-batch modes. Maximum biomass concentration and lipid accumulations were 40.17 g/L and 21.32 wt% in the bioreactor, which was 2.1 and 5.4 times higher than the same condition in shaken flasks, respectively. This study presents relevant information to the production of fungal lipids since few investigations are exploring the fed-batch strategy to increase the yield of fungi lipids, as well as few studies investigating Nigrospora sp. to produce lipids.
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Affiliation(s)
- Denise Tonato
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, Brazil
| | - Thiarles Brun
- Department of Rural Engineering, Federal University of Santa Maria, Santa Maria, Brazil
| | - Luciana Luft
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, Brazil
| | | | | | - Patrícia Grassi
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, Brazil
| | - Jordana Georgin
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, Brazil
| | - Raquel C Kuhn
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, Brazil
| | - Giovani L Zabot
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria, Cachoeira do Sul, Brazil
| | - Marcio A Mazutti
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, Brazil
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Alhujaily A, Mawad AMM, Albasri HM, Fuying M. Efficiency of thermostable purified laccase isolated from Physisporinus vitreus for azo dyes decolorization. World J Microbiol Biotechnol 2024; 40:138. [PMID: 38509412 DOI: 10.1007/s11274-024-03953-9] [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: 01/02/2024] [Accepted: 03/12/2024] [Indexed: 03/22/2024]
Abstract
Laccases are versatile biocatalysts that are prominent for industrial purposes due to their extensive substrate specificity. Therefore, this research investigated producing laccase from Physisporinus vitreus via liquid fermentation. The results revealed that veratryl alcohol (4mM) was the most effective inducer 7500U/L. On the other hand, Zn ions inhibited laccase production. The optimum carbon and nitrogen sources were glucose and tryptone by 5200 and 3300 U/L, respectively. Moreover, solvents exhibited various impacts on the enzyme activity at three different solvent concentrations (5%, 10% and 20%), however, it showed a highest activity at 5% of the investigated solvent. Ferric ions inhibited the enzyme activity. In addition, the enzyme has a high ability to decolorize azo dyes when using syringaldehyde as a mediator. The purified laccase from Physisporinus vitreus is a promising substance to be used for industrial and environmental applications due to its stability under harsh conditions and efficiency in decolorization of dyes.
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Affiliation(s)
- Ahmad Alhujaily
- Department of Biology, College of Science, Taibah University, Madinah, 30001, Saudi Arabia.
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China.
| | - Asmaa M M Mawad
- Department of Biology, College of Science, Taibah University, Madinah, 30001, Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Hibah M Albasri
- Department of Biology, College of Science, Taibah University, Madinah, 30001, Saudi Arabia
| | - Ma Fuying
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, People's Republic of China.
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5
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Sharghi S, Ahmadi FS, Kakhki AM, Farsi M. Copper increases laccase gene transcription and extracellular laccase activity in Pleurotus eryngii KS004. Braz J Microbiol 2024; 55:111-116. [PMID: 38231377 PMCID: PMC10920597 DOI: 10.1007/s42770-024-01257-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024] Open
Abstract
The white-rot fungus Pleurotus eryngii secretes various laccases involved in the degradation of a wide range of chemical compounds. Since the laccase production is relatively low in fungi, many efforts have been focused on finding ways to increase it, so in this study, we investigated the effect of copper on the transcription of the pel3 laccase gene and extracellular laccase activity. The results indicate that adding 0.5 to 2 mM copper to liquid cultures of P. eryngii KS004 increased both pel3 gene transcription and extracellular laccase activity in a concentration-dependent manner. The most significant increase in enzyme activity occurred at 1 mM Cu2+, where the peak activity was 4.6 times higher than in control flasks. Copper also induced the transcription of the laccase gene pel3. The addition of 1.5 and 2 mM Cu2+ to fungal culture media elevated pel3 transcript levels to more than 13-fold, although the rate of induction slowed down at Cu2+ concentrations higher than 1.5 mM. Our findings suggest that copper acts as an inducer in the regulation of laccase gene expression in P. eryngii KS004. Despite its inhibitory effect on fungal growth, supplementing cultures with copper can lead to an increased extracellular laccase production in P. eryngii.
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Affiliation(s)
- Sara Sharghi
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Farajollah Shahriari Ahmadi
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Amin Mirshamsi Kakhki
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mohammad Farsi
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
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Singh AK, Iqbal HMN, Cardullo N, Muccilli V, Fern'andez-Lucas J, Schmidt JE, Jesionowski T, Bilal M. Structural insights, biocatalytic characteristics, and application prospects of lignin-modifying enzymes for sustainable biotechnology-A review. Int J Biol Macromol 2023:124968. [PMID: 37217044 DOI: 10.1016/j.ijbiomac.2023.124968] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 04/22/2023] [Accepted: 05/17/2023] [Indexed: 05/24/2023]
Abstract
Lignin modifying enzymes (LMEs) have gained widespread recognition in depolymerization of lignin polymers by oxidative cleavage. LMEs are a robust class of biocatalysts that include lignin peroxidase (LiP), manganese peroxidase (MnP), versatile peroxidase (VP), laccase (LAC), and dye-decolorizing peroxidase (DyP). Members of the LMEs family act on phenolic, non-phenolic substrates and have been widely researched for valorization of lignin, oxidative cleavage of xenobiotics and phenolics. LMEs implementation in the biotechnological and industrial sectors has sparked significant attention, although its potential future applications remain underexploited. To understand the mechanism of LMEs in sustainable pollution mitigation, several studies have been undertaken to assess the feasibility of LMEs in correlating to diverse pollutants for binding and intermolecular interactions at the molecular level. However, further investigation is required to fully comprehend the underlying mechanism. In this review we presented the key structural and functional features of LMEs, including the computational aspects, as well as the advanced applications in biotechnology and industrial research. Furthermore, concluding remarks and a look ahead, the use of LMEs coupled with computational frameworks, built upon artificial intelligence (AI) and machine learning (ML), has been emphasized as a recent milestone in environmental research.
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Affiliation(s)
- Anil Kumar Singh
- Environmental Microbiology Laboratory, Environmental Toxicology Group CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico
| | - Nunzio Cardullo
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, V.le A. Doria 6, 95125 Catania, Italy
| | - Vera Muccilli
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, V.le A. Doria 6, 95125 Catania, Italy
| | - Jesús Fern'andez-Lucas
- Applied Biotechnology Group, Universidad Europea de Madrid, Urbanizaci'on El Bosque, 28670 Villaviciosa de Od'on, Spain; Grupo de Investigaci'on en Ciencias Naturales y Exactas, GICNEX, Universidad de la Costa, CUC, Calle 58 # 55-66, 080002 Barranquilla, Colombia
| | - Jens Ejbye Schmidt
- Department of Chemical Engineering, Biotechnology and Environmental Technology, University of Southern Denmark, Odense, Denmark
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland
| | - Muhammad Bilal
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
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Nadhilah D, Andriani A, Agustriana E, Nuryana I, Mubarik NR, Dewi KS, Rahmani N, Yanto DHY, Ismayati M, Perwitasari U, Laksmi FA, Wijaya H. Co-catalysis of melanin degradation by laccase-manganese peroxidase complex from Trametes hirsuta OK271075 for application in whitening cosmetics. BIOCATAL BIOTRANSFOR 2023. [DOI: 10.1080/10242422.2023.2188995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Dini Nadhilah
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
- Department of Biology, Bogor Agricultural University, Bogor, Indonesia
| | - Ade Andriani
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
- Research Collaboration Center for Biomass-Based nano Cosmetics, Samarinda, Indonesia
| | - Eva Agustriana
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
| | - Isa Nuryana
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
| | | | - Kartika Sari Dewi
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
| | - Nanik Rahmani
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
| | - Dede Heri Yuli Yanto
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
- Research Collaboration Center for Biomass-Based nano Cosmetics, Samarinda, Indonesia
| | - Maya Ismayati
- Research Center for Biomass and Bioproducts, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
| | - Urip Perwitasari
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
| | - Fina Amreta Laksmi
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
| | - Hans Wijaya
- Research Centre for Applied Microbiology, National Agency for Research and Innovation, Cibinong, Bogor, Indonesia
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Abbas M, Ejaz U, Shafique M, Naz SA, Sohail M. Biological pretreatment of sugarcane bagasse for the production of fungal laccase and bacterial cellulase. J Basic Microbiol 2023. [PMID: 36856084 DOI: 10.1002/jobm.202200684] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/15/2023] [Accepted: 02/19/2023] [Indexed: 03/02/2023]
Abstract
Sugarcane bagasse (SB) is a promising source of appreciable quantities of fermentable sugars. However, the presence of lignin hinders utilization of these carbohydrates and hence pretreatment to remove lignin is necessarily carried out. Here, a biological pretreatment method was synchronized with the production of a thermostable cellulase using SB as a raw material. Initially, bagasse was fermented by a laccase producing fungus, Trametes pubescens MB 89 under solid state fermentation (SSF) and a titer of 1758 IU mL-1 of laccase was obtained. Investigations of nine factors affecting laccase production through Plackett Burman design improved the titers to 6539 IU mL-1 . Five factors (incubation period, concentration of CuSO4 , temperature, moisture content, and particle size) were found significant which were optimized through Central Composite design leading to an improvement in the titers by ~5 folds (8841 IU mL-1 ). Biologically pretreated SB was fermented by a thermophilic bacterium, Neobacillus sedimentimangrovi UE25, that yielded 8.64 IU mL-1 of cellulase. Delignification and cellulose utilization were affirmed by structural analysis through FTIR and SEM. The synchronized process yielded higher titers of laccase and cellulase under SSF of SB with the minimum use of corrosive chemicals.
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Affiliation(s)
- Mustansir Abbas
- Department of Microbiology, University of Karachi, Karachi, Pakistan
| | - Uroosa Ejaz
- Department of Biosciences, Faculty of Life Sciences, Shaheed Zulfiqar Ali Bhutto Institute of Science and Technology (SZABIST), Karachi, Pakistan
| | - Maryam Shafique
- Department of Microbiology, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan
| | - Sehar A Naz
- Department of Microbiology, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan
| | - Muhammad Sohail
- Department of Microbiology, University of Karachi, Karachi, Pakistan
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Microaerobic conditions enhance laccase production from Rheinheimera sp. in an economical medium. Arch Microbiol 2022; 204:562. [PMID: 35980477 DOI: 10.1007/s00203-022-03170-8] [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: 12/06/2021] [Revised: 05/19/2022] [Accepted: 08/04/2022] [Indexed: 12/06/2022]
Abstract
Statistical optimization of aeration conditions viz. aerobic, microaerobic and anaerobic, was performed using response surface methodology (RSM) utilizing soybean meal as medium to enhance the production of laccase from Rheinheimera sp. Maximum laccase yield (18.48 × 105 U/L) was obtained under microaerobic (static) conditions sustained for 12 h in tandem with 26 h aerobically (150 rpm) grown culture, which was 17.03-fold higher than laccase production in the starting M162 medium under aerobic conditions (150 rpm). The reduction in incubation time from 72 to 38 h and utilization of cost-effective soybean meal as medium, which is easily available from local market, have provided a promising, eco-friendly method of laccase enzyme production. Enhanced expression of laccase gene under microaerobic conditions corresponded to the increased expression of fnr (fumarate nitrate reductase) gene, the oxygen sensing global regulator. The putative FNR-binding site upstream of laccase transcription initiation site was predicted to play an imperative role in Rheinheimera sp. adaptation from aerobic to microaerobic conditions and for enhanced laccase production.
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Unveiling lignocellulolytic trait of a goat omasum inhabitant Klebsiella variicola strain HSTU-AAM51 in light of biochemical and genome analyses. Braz J Microbiol 2022; 53:99-130. [PMID: 35088248 PMCID: PMC8882562 DOI: 10.1007/s42770-021-00660-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 11/19/2021] [Indexed: 01/30/2023] Open
Abstract
Klebsiella variicola is generally known as endophyte as well as lignocellulose-degrading strain. However, their roles in goat omasum along with lignocellulolytic genetic repertoire are not yet explored. In this study, five different pectin-degrading bacteria were isolated from a healthy goat omasum. Among them, a new Klebsiella variicola strain HSTU-AAM51 was identified to degrade lignocellulose. The genome of the HSTU-AAM51 strain comprised 5,564,045 bp with a GC content of 57.2% and 5312 coding sequences. The comparison of housekeeping genes (16S rRNA, TonB, gyrase B, RecA) and whole-genome sequence (ANI, pangenome, synteny, DNA-DNA hybridization) revealed that the strain HSTU-AAM51 was clustered with Klebsiella variicola strains, but the HSTU-AAM51 strain was markedly deviated. It consisted of seventeen cellulases (GH1, GH3, GH4, GH5, GH13), fourteen beta-glucosidase (2GH3, 7GH4, 4GH1), two glucosidase, and one pullulanase genes. The strain secreted cellulase, pectinase, and xylanase, lignin peroxidase approximately 76-78 U/mL and 57-60 U/mL, respectively, when it was cultured on banana pseudostem for 96 h. The catalytically important residues of extracellular cellulase, xylanase, mannanase, pectinase, chitinase, and tannase proteins (validated 3D model) were bound to their specific ligands. Besides, genes involved in the benzoate and phenylacetate catabolic pathways as well as laccase and DiP-type peroxidase were annotated, which indicated the strain lignin-degrading potentiality. This study revealed a new K. variicola bacterium from goat omasum which harbored lignin and cellulolytic enzymes that could be utilized for the production of bioethanol from lignocelluloses.
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Biosorption and Bioleaching of Heavy Metals from Electronic Waste Varied with Microbial Genera. SUSTAINABILITY 2022. [DOI: 10.3390/su14020935] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Industrialization and technological advancements have led to the exploitation of natural resources and the production of hazardous wastes, including electronic waste (E-waste). The traditional physical and chemical techniques used to combat E-waste accumulation have inherent drawbacks, such as the production of harmful gases and toxic by-products. These limitations may be prudently addressed by employing green biological methods, such as biosorption and bioleaching. Therefore, this study was aimed at evaluating the biosorption and bioleaching potential of seven microbial cultures using E-waste (printed circuit board (PCB)) as a substrate under submerged culture conditions. The cut pieces of PCB were incubated with seven microbial cultures in liquid broth conditions in three replicates. Atomic absorption spectroscopy (AAS) analysis of the culture biomass and culture filtrates was performed to evaluate and screen the better-performing microbial cultures for biosorption and bioleaching potentials. The best four cultures were further evaluated through SEM, energy-dispersive X-ray spectroscopy (EDX), and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) studies to identify the possible culture that can be utilized for the biological decontamination of E-waste. The study revealed the highest and differential ability of Pleurotus florida and Pseudomonas spp. for biosorption and bioleaching of copper and iron. This can be attributed to bio-catalysis by the laccase enzyme. For both P. florida and Pseudomonas spp. on the 20th day of incubation, laccase exhibited higher specific activity (6.98 U/mg and 5.98 U/mg, respectively) than other microbial cultures. The biomass loaded with Cu2+ and Fe2+ ions after biosorption was used for the desorption process for recovery. The test cultures exhibited variable copper recovery efficiencies varying between 10.5 and 18.0%. Protein characterization through SDS-PAGE of four promising microbial cultures exhibited a higher number of bands in E-waste as compared with microbial cultures without E-waste. The surface topography studies of the E-waste substrate showed etching, as well as deposition of vegetative and spore cells on the surfaces of PCB cards. The EDX studies of the E-waste showed decreases in metal element content (% wt/% atom basis) on microbial treatment from the respective initial concentrations present in non-treated samples, which established the bioleaching phenomenon. Therefore, these microbial cultures can be utilized to develop a biological remediation method to manage E-waste.
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Durán-Sequeda D, Suspes D, Maestre E, Alfaro M, Perez G, Ramírez L, Pisabarro AG, Sierra R. Effect of Nutritional Factors and Copper on the Regulation of Laccase Enzyme Production in Pleurotus ostreatus. J Fungi (Basel) 2021; 8:jof8010007. [PMID: 35049947 PMCID: PMC8780821 DOI: 10.3390/jof8010007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/07/2021] [Accepted: 12/17/2021] [Indexed: 01/02/2023] Open
Abstract
This research aimed to establish the relationship between carbon–nitrogen nutritional factors and copper sulfate on laccase activity (LA) by Pleurotus ostreatus. Culture media composition was tested to choose the nitrogen source. Yeast extract (YE) was selected as a better nitrogen source than ammonium sulfate. Then, the effect of glucose and YE concentrations on biomass production and LA as response variables was evaluated using central composite experimental designs with and without copper. The results showed that the best culture medium composition was glucose 45 gL−1 and YE 15 gL−1, simultaneously optimizing these two response variables. The fungal transcriptome was obtained in this medium with or without copper, and the differentially expressed genes were found. The main upregulated transcripts included three laccase genes (lacc2, lacc6, and lacc10) regulated by copper, whereas the principal downregulated transcripts included a copper transporter (ctr1) and a regulator of nitrogen metabolism (nmr1). These results suggest that Ctr1, which facilitates the entry of copper into the cell, is regulated by nutrient-sufficiency conditions. Once inside, copper induces transcription of laccase genes. This finding could explain why a 10–20-fold increase in LA occurs with copper compared to cultures without copper when using the optimal concentration of YE as nitrogen sources.
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Affiliation(s)
- Dinary Durán-Sequeda
- Product and Process Design Group, Department of Chemical and Food Engineering, Universidad de los Andes, 111711 Bogotá, Colombia; (D.S.); (E.M.); (R.S.)
- Institute for Multidisciplinary Research in Applied Biology, Public University of Navarre, 31006 Pamplona, Spain; (M.A.); (G.P.); (L.R.)
- Correspondence: (D.D.-S.); (A.G.P.)
| | - Daniela Suspes
- Product and Process Design Group, Department of Chemical and Food Engineering, Universidad de los Andes, 111711 Bogotá, Colombia; (D.S.); (E.M.); (R.S.)
| | - Estibenson Maestre
- Product and Process Design Group, Department of Chemical and Food Engineering, Universidad de los Andes, 111711 Bogotá, Colombia; (D.S.); (E.M.); (R.S.)
| | - Manuel Alfaro
- Institute for Multidisciplinary Research in Applied Biology, Public University of Navarre, 31006 Pamplona, Spain; (M.A.); (G.P.); (L.R.)
| | - Gumer Perez
- Institute for Multidisciplinary Research in Applied Biology, Public University of Navarre, 31006 Pamplona, Spain; (M.A.); (G.P.); (L.R.)
| | - Lucía Ramírez
- Institute for Multidisciplinary Research in Applied Biology, Public University of Navarre, 31006 Pamplona, Spain; (M.A.); (G.P.); (L.R.)
| | - Antonio G. Pisabarro
- Institute for Multidisciplinary Research in Applied Biology, Public University of Navarre, 31006 Pamplona, Spain; (M.A.); (G.P.); (L.R.)
- Correspondence: (D.D.-S.); (A.G.P.)
| | - Rocío Sierra
- Product and Process Design Group, Department of Chemical and Food Engineering, Universidad de los Andes, 111711 Bogotá, Colombia; (D.S.); (E.M.); (R.S.)
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Combining analytical approaches for better lignocellulosic biomass degradation: a way of improving fungal enzymatic cocktails? Biotechnol Lett 2021; 43:2283-2298. [PMID: 34708264 DOI: 10.1007/s10529-021-03201-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/22/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE In this study, a combinatory approach was undertaken to assay the efficiency of fungal enzymatic cocktails from different fermentation conditions to degrade different lignocellulosic biomasses with the aim of finely characterizing fungal enzymatic cocktails. METHODS Enzymatic assays (AZO and pNP-linked substrates and ABTS) were used to assess the composition of the fungal enzymatic cocktails for cellulase, xylanase and laccase activities. Comparisons were made with a new range of chromogenic substrates based on complex biomass (CBS substrates). The saccharification efficiency of the cocktails was evaluated as a quantification of the sugar monomers released from the different biomasses after incubation with the enzymatic cocktails. RESULTS The results obtained showed striking differences between the AZO and pNP-linked substrates and the CBS substrates for the same enzymatic cocktails. On AZO and pNP-linked substrates, different hydrolysis profiles were observed between the different fungi species with Aspergillus oryzae being the most efficient. However, the results on CBS substrates were more contrasted depending on the biomass tested. Altogether, the results highlighted that assessing laccase activities and taking into account the complexity of the biomass to degrade were key in order to provide the best enzymatic cocktails. CONCLUSION The complementary experiments performed in this study showed that different approaches needed to be taken in order to accurately assess the ability of an enzymatic cocktail to be efficient when it comes to lignocellulosic biomass degradation. The saccharification assay proved to be essential to validate the data obtained from both simple and complex substrates.
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Enhancement of laccase production by Cerrena unicolor through fungal interspecies interaction and optimum conditions determination. Arch Microbiol 2021; 203:3905-3917. [PMID: 34014357 DOI: 10.1007/s00203-021-02374-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 04/24/2021] [Accepted: 05/10/2021] [Indexed: 10/21/2022]
Abstract
The present study aimed to identify a pair of fungal strains that promote laccase production in the co-cultivation of white-rot basidiomycetes and to determine the optimum conditions to enhance enzyme synthesis under co-fermentation of mandarin peels. Co-cultivation of Cerrena unicolor with Trametes versicolor, Lenzites betulina, and Panus lecomtei led to up-regulation of laccase activity. Moreover, interspecific interaction of Cerrena unicolor and Trametes versicolor induced the production of two new laccase isoenzymes. By contrast, interactions of Cerrena unicolor with Trametes coccineus and Trametes hirsuta resulted in a multiple decreased ability of Cerrena unicolor to produce laccase. Co-cultivation of Cerrena unicolor with other fungi 3- to 12-fold down-regulated manganese peroxidase (MnP) activity. The outcomes of these fungal interactions are closely related to the initial concentration and availability of the nutrients, the partners' inoculum ratio, time, and sequence of their inoculation. Co-cultivation of Cerrena unicolor and Trametes versicolor in fermenter resulted in the accumulation of 476 U/mL laccase and 1.12 U/mL MnP.
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Fungal Laccases to Where and Where? Fungal Biol 2021. [DOI: 10.1007/978-3-030-85603-8_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Falade AO, Mabinya LV, Okoh AI, Nwodo UU. Agroresidues enhanced peroxidase activity expression by Bacillus sp. MABINYA-1 under submerged fermentation. BIORESOUR BIOPROCESS 2020. [DOI: 10.1186/s40643-020-00345-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractAgroresidues have continued to gain preference over conventional carbon sources for microbial enzyme production due to the low price and abundance in the environment. Therefore, this study aimed at improving peroxidase yield by Bacillus sp. MABINYA-1 (BMAB-1) using agroresidues under submerged fermentation. The culture parameters that support maximum peroxidase yield by BMAB-1 was initially determined and the results showed that peroxidase activity expression was optimum at pH 5, 30 °C and 150 rpm while veratryl alcohol and ammonium sulphate served as the best peroxidase-inducer and inorganic nitrogen source, respectively. BMAB-1 exhibited maximum peroxidase expression (17.50 ± 0.10 U/mg) at 72 h using kraft lignin liquid medium (KLLM) under the optimized culture conditions. Upon utilization of selected agroresidues (sawdust, wheat straw and maize stover) as sole carbon sources by BMAB-1 in the fermentation process, peroxidase activity was significantly enhanced when compared with glucose (14.91 ± 0.31 U/mg) and kraft lignin (17.50 ± 0.10 U/mg). Sawdust produced the highest peroxidase yield (47.14 ± 0.41 U/mg), followed by maize stover (37.09 ± 0.00 U/mg) while wheat straw yielded the lowest peroxidase specific activity (21.65 ± 0.35 U/mg). This indicates that utilization of sawdust by BMAB-1 resulted in 3.2- and 2.7-fold increase in peroxidase activity expression as compared to glucose and kraft lignin, respectively. The aptitude of BMAB-1 to utilize agroresidues would reduce the cost of peroxidase production by the bacteria since the substrates are cheaper than the conventional carbon sources and are, as well, more readily available.
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Cruz YWG, Vieira YA, Vilar DS, Torres NH, Aguiar MM, Cavalcanti EB, Américo-Pinheiro JHP, Soriano RN, Bharagava RN, Lima ÁS, Ferreira LFR. Pulp wash: a new source for production of ligninolytic enzymes and biomass and its toxicological evaluation after biological treatment. ENVIRONMENTAL TECHNOLOGY 2020; 41:1837-1847. [PMID: 30457937 DOI: 10.1080/09593330.2018.1551428] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 11/15/2018] [Indexed: 06/09/2023]
Abstract
Pulp wash was used as substrate for the activity of ligninolytic enzymes of the fungus Pleurotus sajor-caju. Activity of laccase (Lac) and manganese peroxidase (MnP) as well as fungal biomass occurred under four conditions: different pulp wash concentrations, pH variation at the optimal pulp wash concentration, different glucose concentrations, and different concentrations of ammonium nitrate. The best enzyme activity and biomass production were obtained with in natura pulp wash and pH corrected to 5.0 (4884 IU/L Lac; 82 IU/L MnP; 25 g/100 mL biomass). However, the addition of glucose and ammonium nitrate to the pulp wash was not necessary for increasing the enzyme activity and biomass production. Efficient removal of pulp wash chemical oxygen demand (99.66%) and biochemical oxygen demand (83.27%) occurred after the mycoremediation with P. sajor-caju in the optimized conditions. Lactuca sativa L. seeds germination bioassay showed a four-fold reduction in the residue toxicity (EC50 28.72%) after the treatment with the fungus. Our findings are consistent with the notion that pulp wash is an excellent substrate for inducing the activity of ligninolytic enzymes and producing fungal biomass, and that the biological treatment is efficient to reduce effluent toxicity.
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Affiliation(s)
- Ytallo W G Cruz
- Post-Graduation Program in Process Engineering, Tiradentes University, Aracaju, Brazil
| | - Yago A Vieira
- Post-Graduation Program in Process Engineering, Tiradentes University, Aracaju, Brazil
| | - Débora S Vilar
- Post-Graduation Program in Process Engineering, Tiradentes University, Aracaju, Brazil
| | | | - Mario M Aguiar
- Division of Molecular Biology, Innsbruck Medical University, Innsbruck, Austria
| | - Eliane B Cavalcanti
- Post-Graduation Program in Process Engineering, Tiradentes University, Aracaju, Brazil
- Institute of Technology and Research, Aracaju, Brazil
| | | | - Renato N Soriano
- Division of Physiology and Biophysics, Department of Basic Life Sciences, Federal University of Juiz de Fora, Governador Valadares, Brazil
| | - Ram N Bharagava
- Laboratory for Bioremediation and Metagenomics Research (LBMR), Department of Microbiology (DM), Babasaheb Bhimrao Ambedkar University (A Central University), Lucknow, India
| | - Álvaro S Lima
- Post-Graduation Program in Process Engineering, Tiradentes University, Aracaju, Brazil
- Institute of Technology and Research, Aracaju, Brazil
| | - Luiz F R Ferreira
- Post-Graduation Program in Process Engineering, Tiradentes University, Aracaju, Brazil
- Institute of Technology and Research, Aracaju, Brazil
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19
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A Novel Approach in Crude Enzyme Laccase Production and Application in Emerging Contaminant Bioremediation. Processes (Basel) 2020. [DOI: 10.3390/pr8060648] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Laccase enzyme from white-rot fungi is a potential biocatalyst for the oxidation of emerging contaminants (ECs), such as pesticides, pharmaceuticals and steroid hormones. This study aims to develop a three-step platform to treat ECs: (i) enzyme production, (ii) enzyme concentration and (iii) enzyme application. In the first step, solid culture and liquid culture were compared. The solid culture produced significantly more laccase than the liquid culture (447 vs. 74 µM/min after eight days), demonstrating that white rot fungi thrived on a solid medium. In the second step, the enzyme was concentrated 6.6 times using an ultrafiltration (UF) process, resulting in laccase activity of 2980 µM/min. No enzymatic loss due to filtration and membrane adsorption was observed, suggesting the feasibility of the UF membrane for enzyme concentration. In the third step, concentrated crude enzyme was applied in an enzymatic membrane reactor (EMR) to remove a diverse set of ECs (31 compounds in six groups). The EMR effectively removed of steroid hormones, phytoestrogen, ultraviolet (UV) filters and industrial chemical (above 90%). However, it had low removal of pesticides and pharmaceuticals.
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Ben Ali W, Chaduli D, Navarro D, Lechat C, Turbé-Doan A, Bertrand E, Faulds CB, Sciara G, Lesage-Meessen L, Record E, Mechichi T. Screening of five marine-derived fungal strains for their potential to produce oxidases with laccase activities suitable for biotechnological applications. BMC Biotechnol 2020; 20:27. [PMID: 32398071 PMCID: PMC7218534 DOI: 10.1186/s12896-020-00617-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 04/27/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Environmental pollution is one of the major problems that the world is facing today. Several approaches have been taken, from physical and chemical methods to biotechnological strategies (e.g. the use of oxidoreductases). Oxidative enzymes from microorganisms offer eco-friendly, cost-effective processes amenable to biotechnological applications, such as in industrial dye decolorization. The aim of this study was to screen marine-derived fungal strains isolated from three coastal areas in Tunisia to identify laccase-like activities, and to produce and characterize active cell-free supernatants of interest for dye decolorization. RESULTS Following the screening of 20 fungal strains isolated from the harbors of Sfax and Monastir (Tunisia), five strains were identified that displayed laccase-like activities. Molecular-based taxonomic approaches identified these strains as belonging to the species Trichoderma asperellum, Stemphylium lucomagnoense and Aspergillus nidulans. Among these five isolates, one T. asperellum strain (T. asperellum 1) gave the highest level of secreted oxidative activities, and so was chosen for further studies. Optimization of the growth medium for liquid cultures was first undertaken to improve the level of laccase-like activity in culture supernatants. Finally, the culture supernatant of T. asperellum 1 decolorized different synthetic dyes belonging to diverse dye families, in the presence or absence of 1-hydroxybenzotriazole (HBT) as a mediator. CONCLUSIONS The optimal growth conditions to produce laccase-like active cell-free supernatants from T. asperellum 1 were 1.8 mM CuSO4 as an inducer, 1% NaCl to mimic a seawater environment and 3% sucrose as a carbon source. The culture supernatant of T. asperellum 1 effectively decolorized different synthetic dyes belonging to diverse chemical classes, and the presence of HBT as a mediator improved the decolorization process.
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Affiliation(s)
- Wissal Ben Ali
- Ecole Nationale d'Ingénieurs de Sfax, Laboratoire de Biochimie et de Génie enzymatique des lipases, Université de Sfax, Sfax, Tunisie. .,Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France.
| | - Delphine Chaduli
- Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France.,INRA, Aix-Marseille Université, UMR1163, CIRM-CF, Marseille, France
| | - David Navarro
- Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France.,INRA, Aix-Marseille Université, UMR1163, CIRM-CF, Marseille, France
| | - Christian Lechat
- Ascofrance, 64 route de Chizé, F-79360, Villiers-en-Bois, France
| | - Annick Turbé-Doan
- Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France
| | - Emmanuel Bertrand
- Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France
| | - Craig B Faulds
- Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France
| | - Giuliano Sciara
- Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France
| | - Laurence Lesage-Meessen
- Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France
| | - Eric Record
- Biodiversité et Biotechnologie Fongiques, Aix-Marseille Université, INRA UMR1163, Marseille, France
| | - Tahar Mechichi
- Ecole Nationale d'Ingénieurs de Sfax, Laboratoire de Biochimie et de Génie enzymatique des lipases, Université de Sfax, Sfax, Tunisie
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Naidu Y, Siddiqui Y, Idris AS. Comprehensive studies on optimization of ligno-hemicellulolytic enzymes by indigenous white rot hymenomycetes under solid-state cultivation using agro-industrial wastes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 259:110056. [PMID: 31929034 DOI: 10.1016/j.jenvman.2019.110056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 12/11/2019] [Accepted: 12/31/2019] [Indexed: 06/10/2023]
Abstract
The disposal of oil palm biomass is a huge challenge in Malaysian oil palm plantations. The aim of this study was to develop efficient solid-state cultivated (SSC) ligno-hemicellulolytic bio-degrader formulations of indigenous white-rot hymenomycetes (Trametes lactinea FBW and Pycnoporus sanguineus FBR) utilizing oil palm empty fruit bunches (EFB), rubber wood sawdust (SD) and vermiculite (V) either alone or in combination as substrates. Based on significant laccase (849.40 U mg-1 protein), xylanase (42.26 U g-1 protein) and amylase (157.49 U g-1 protein) production, SD+V (T5) and V (T3) were the optimum substrates for SSC of T. lactinea FBW. Whereas, utilizing EFB (T1) substrate for SSC of P. sanguineus FBR enhanced the production of MnP (42.51 U mg-1 protein), LiP (103.20 U mg-1 protein) and CMCase (34.39 U g-1 protein), enzymes. Apparently, this is the first study reporting on the protein profiles by T. lactinea FBW, producing two isoforms of un-purified laccase (~55 and 70 kDa) and MnP (~40 and 60 kDa) and a CMCase band (~60 kDa) during SSC on SD+V (T5) substrate. Interestingly, this is also the first report to document a single isoform of un-purified laccase (~50 kDa), MnP (~45 kDa), CMCase (~60 kDa) and xylanase (~55 kDa) by P. sanguineus FBR during SSC on empty fruit bunches substrate. The computed Principal Component Analysis (PCA) Biplot analysis elucidated the relationship between the solid substrate compositions, the hymenomycete strain, ligno-hemicellulolytic enzyme profiles, and cultivation time. Therefore, it is suggested to use PCA as a tool for multivariate analysis method for comprehensive selection and optimization of ligno-hemicellulolytic enzyme cocktails by the indigenous white rot hymenomycetes. These non-toxic (acute oral toxicity) formulations are safe to be used in field applications to efficiently degrade oil palm trunks and root mass that had been felled, chipped or pulverized under zero burning waste management program. This study could also serve as an alternative method for efficient utilization of agro-industrial waste as substrates for the development of cost-effective bio-degraders formulations for agro-waste management.
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Affiliation(s)
- Yuvarani Naidu
- Biology Division, Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia.
| | - Yasmeen Siddiqui
- Laboratory of Plantation Science and Technology, Institute of Plantation Studies, Universiti Putra Malaysia, Serdang, 43400, Selangor, Malaysia.
| | - Abu Seman Idris
- Biology Division, Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000, Kajang, Selangor, Malaysia
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Falade AO, Mabinya LV, Okoh AI, Nwodo UU. Studies on peroxidase production and detection of Sporotrichum thermophile-like catalase-peroxidase gene in a B acillus species isolated from Hogsback forest reserve, South Africa. Heliyon 2020; 5:e03012. [PMID: 31890960 PMCID: PMC6926187 DOI: 10.1016/j.heliyon.2019.e03012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/22/2019] [Accepted: 12/06/2019] [Indexed: 11/26/2022] Open
Abstract
This study sought to determine the process conditions for optimum peroxidase production by a Bacillus species (Bacillus sp. FALADE-1-KX640922) isolated from Hogsback forest reserve in South Africa and characterize the peroxidase gene in the bacteria. We optimized peroxidase production by manipulating the environmental and nutritional parameters under submerged fermentation. Subsequently, the gene encoding heme-peroxidase was determined through nested polymerase chain reaction and Sanger DNA sequencing. The studied bacteria had maximum peroxidase production at pH 8, 30 °C and 150 rpm. The addition of guaiacol to lignin fermentation medium enhanced peroxidase production by over 100 % in the studied bacteria. However, the other lignin monomers (veratryl alcohol, vanillin, vanillic acid and ferulic acid) repressed the enzyme activity. Modification of the fermentation medium with ammonium sulphate gave the maximum peroxidase yield (8.87 U mL−1). Under the predetermined culture conditions, Bacillus sp. FALADE-1 expressed maximum specific peroxidase activity at 48 h (8.32 U mg−1). Interestingly, a search of the sequenced gene in PeroxiBase showed 100% similarity to Sporotrichum thermophile catalase-peroxidase gene (katG), as well, the deduced protein sequence clustered with bacterial catalase-peroxidases and had a molecular weight of about 11.45 kDa with 7.01 as the estimated isoelectric point. Subsequently, the nucleotide sequence was deposited in the National Center for Biotechnology Information (NCBI) repository with the accession number MF407314. In conclusion, Bacillus sp. FALADE-1 is a promising candidate for improved peroxidase production.
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Affiliation(s)
- Ayodeji O. Falade
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
- Department of Biochemistry, University of Medical Sciences, Ondo, 351101, Ondo State, Nigeria
- Corresponding author.
| | - Leonard V. Mabinya
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
| | - Anthony I. Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
| | - Uchechukwu U. Nwodo
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
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Ghosh P, Ghosh U. Statistical optimisation of laccase production by isolated strain Aspergillus flavus PUF5 utilising ribbed gourd peels as the substrate and enzyme application on apple juice clarification. Chem Ind 2019. [DOI: 10.1080/00194506.2019.1684211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Priyanka Ghosh
- Department of Food Technology & Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Uma Ghosh
- Department of Food Technology & Biochemical Engineering, Jadavpur University, Kolkata, India
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Trametes versicolor laccase production using agricultural wastes: a comparative study in Erlenmeyer flasks, bioreactor and tray. Bioprocess Biosyst Eng 2019; 43:507-514. [DOI: 10.1007/s00449-019-02245-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 10/30/2019] [Indexed: 10/25/2022]
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Patil ND, Chopade LR, Narkhede KP, Chaudhari BL, Mahajan RT. Bioprocess optimization of laccase production through solid substrate fermentation using Perenniporia tephropora-L168 and its application in bioremediation of triaryl-methane dye. Biotechnol Prog 2019; 36:e2916. [PMID: 31587519 DOI: 10.1002/btpr.2916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/07/2019] [Accepted: 09/06/2019] [Indexed: 11/07/2022]
Abstract
Laccases are multi copper oxidases that can oxidize both phenolic and nonphenolic lignin related compounds. Consequently, there has been continuous demand for laccases for the oxidative degradation of phenolic dyes in effluents. In view of this, the present work was focused on laccase production by solid substrate fermentation using a newly isolated fungus Perenniporia tephropora-L168. To intensify the laccase production, the process parameters pH, nitrogen, inducer, and substrate: water ratio were optimized by using statistical model. A set of optimal conditions noted were pH 3, nitrogen 0.001 g/L; inducer 0.5% and substrate: water ratio (1:10), which yielded laccase 1,160 U/g. The crude laccase exhibited noteworthy potential to degrade a triaryl-methane dye especially Malachite green. Also, during bioremediation studies, the statistical process optimization could achieve 81% decolourization within 180 min. The laccase treatment brought chemical transformation in malachite green as evident from UV-Visible spectra, FTIR, HPLC while toxicity against bacteria and fungi was also reduced. During phytotoxicity study, effect of treated and untreated dye on germination of seed was analyzed. Interestingly, the germination index for Vigna aconitifolia and Vigna radiata was increased by two and fourfold, respectively. Overall, this work demonstrates optimized production of laccase using Perenniporia tephropora-L168 and its efficient bioremediation potential for triaryl-methane dye.
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Affiliation(s)
- Nayna D Patil
- Department of Microbiology, Moolji Jaitha College, Jalgaon, Maharashtra, India
| | - Lalit R Chopade
- Department of Microbiology, School of Life Sciences, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, Maharashtra, India
| | - Ketan P Narkhede
- Department of Microbiology, Moolji Jaitha College, Jalgaon, Maharashtra, India
| | - Bhushan L Chaudhari
- Department of Microbiology, School of Life Sciences, Kavayitri Bahinabai Chaudhari North Maharashtra University, Jalgaon, Maharashtra, India
| | - Raghunath T Mahajan
- Department of Microbiology, Moolji Jaitha College, Jalgaon, Maharashtra, India
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Noman E, Al-Gheethi A, Mohamed RMSR, Talip BA. Myco-Remediation of Xenobiotic Organic Compounds for a Sustainable Environment: A Critical Review. Top Curr Chem (Cham) 2019; 377:17. [DOI: 10.1007/s41061-019-0241-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 05/08/2019] [Indexed: 01/06/2023]
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Production of lignin-modifying enzymes by Trametes ochracea on high-molecular weight fraction of olive mill wastewater, a byproduct of olive oil biorefinery. N Biotechnol 2019; 50:44-51. [DOI: 10.1016/j.nbt.2019.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 01/16/2019] [Accepted: 01/18/2019] [Indexed: 11/19/2022]
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28
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Upscale and characterization of lignin-modifying enzymes from Marasmiellus palmivorus VE111 in a bioreactor under parameter optimization and the effect of inducers. J Biotechnol 2019; 295:1-8. [DOI: 10.1016/j.jbiotec.2019.03.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 11/22/2022]
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29
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Gupta A, Jana AK. Production of laccase by repeated batch semi-solid fermentation using wheat straw as substrate and support for fungal growth. Bioprocess Biosyst Eng 2018; 42:499-512. [DOI: 10.1007/s00449-018-2053-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 11/30/2018] [Indexed: 12/18/2022]
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Gongronella sp. w5 elevates Coprinopsis cinerea laccase production by carbon source syntrophism and secondary metabolite induction. Appl Microbiol Biotechnol 2018; 103:411-425. [PMID: 30406450 DOI: 10.1007/s00253-018-9469-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/12/2018] [Accepted: 10/17/2018] [Indexed: 10/27/2022]
Abstract
When sucrose was used as the carbon source, the Basidiomycete Coprinopsis cinerea showed poor growth and low laccase activity in pure culture, but greatly enhanced the level of laccase activity (>1800 U/L) during coculture with the Mucoromycete Gongronella sp. w5. As a result, the mechanism of laccase overproduction in coculture was investigated by starting from clarifying the function of sucrose. Results demonstrated that Gongronella sp. w5 in the coculture system hydrolyzed sucrose to glucose and fructose by an intracellular invertase. Fructose rather than glucose was supplied by Gongronella sp. w5 as the readily available carbon source for C. cinerea, and contributed to an alteration of its growth behavior and a basal laccase secretion of 110.6 ± 3.3 U/L. On the other hand, separating Gongronella sp. w5 of C. cinerea by transfer into dialysis tubes yielded the same level of laccase activity as without separation, indicating that enhanced laccase production probably resulted from the metabolites in the fermentation broth. Further investigation showed that the ethyl acetate-extracted metabolites generated by Gongronella sp. w5 induced C. cinerea laccase production. One of the laccase-inducing compounds namely p-hydroxybenzoic acid (HBA) was purified and identified from the extract. When using HBA as the inducer and fructose as the carbon source in monoculture, C. cinerea observed similar high laccase activity to that in coculture, and zymograms revealed the same expression of laccase Lcc9 as the main and Lcc1 and Lcc5 as the minor enzymes. Overall, our experiments verified that Gongronella sp. w5 elevates Coprinopsis cinerea laccase production by carbon source syntrophism and secondary metabolite induction.
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Andlar M, Rezić T, Marđetko N, Kracher D, Ludwig R, Šantek B. Lignocellulose degradation: An overview of fungi and fungal enzymes involved in lignocellulose degradation. Eng Life Sci 2018; 18:768-778. [PMID: 32624871 PMCID: PMC6999254 DOI: 10.1002/elsc.201800039] [Citation(s) in RCA: 189] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/03/2018] [Accepted: 04/17/2018] [Indexed: 11/10/2022] Open
Abstract
This review aims to present current knowledge of the fungi involved in lignocellulose degradation with an overview of the various classes of lignocellulose-acting enzymes engaged in the pretreatment and saccharification step. Fungi have numerous applications and biotechnological potential for various industries including chemicals, fuel, pulp, and paper. The capability of fungi to degrade lignocellulose containing raw materials is due to their highly effective enzymatic system. Along with the hydrolytic enzymes consisting of cellulases and hemicellulases, responsible for polysaccharide degradation, they have a unique nonenzymatic oxidative system which together with ligninolytic enzymes is responsible for lignin modification and degradation. An overview of the enzymes classification is given by the Carbohydrate-Active enZymes (CAZy) database as the major database for the identification of the lignocellulolytic enzymes by their amino acid sequence similarity. Finally, the recently discovered novel class of recalcitrant polysaccharide degraders-lytic polysaccharide monooxygenases (LPMOs) are presented, because of these enzymes importance in the cellulose degradation process.
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Affiliation(s)
- Martina Andlar
- Department of Biochemical EngineeringFaculty of Food Technology and BiotechnologyUniversity of ZagrebZagrebCroatia
| | - Tonči Rezić
- Department of Biochemical EngineeringFaculty of Food Technology and BiotechnologyUniversity of ZagrebZagrebCroatia
| | - Nenad Marđetko
- Department of Biochemical EngineeringFaculty of Food Technology and BiotechnologyUniversity of ZagrebZagrebCroatia
| | - Daniel Kracher
- Department of Food Sciences and TechnologyUniversity of Natural Resources and Life SciencesViennaAustria
| | - Roland Ludwig
- Department of Food Sciences and TechnologyUniversity of Natural Resources and Life SciencesViennaAustria
| | - Božidar Šantek
- Department of Biochemical EngineeringFaculty of Food Technology and BiotechnologyUniversity of ZagrebZagrebCroatia
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Ćilerdžić J, Galić M, Ivanović Ž, Brčeski I, Vukojević J, Stajić M. Stimulation of Wood Degradation by Daedaleopsis confragosa and D. tricolor. Appl Biochem Biotechnol 2018; 187:1371-1383. [PMID: 30229433 DOI: 10.1007/s12010-018-2884-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 09/09/2018] [Indexed: 11/25/2022]
Abstract
Biological pretreatment of the lignocellulosic residues, in which white-rot fungi have a crucial role, has many advantages compared to the chemical, physical, and physico-chemical methods of delignification and therefore attracts increasing scientific attention. Regarding the fact that properties and capacities of the ligninolytic enzymes of Daedaleopsis spp. are still unknown, the aim of this study was to research how nitrogen sources and inducers affect the potential of Daedaleopsis confragosa and Daedaleopsis tricolor to degrade cherry sawdust. NH4NO3, (NH4)2SO4, and peptone were tested as nitrogen sources, while veratryl alcohol, p-anisidine, vanillic acid, and phenylmethylsulfonyl fluoride were the studied inducers. As Mn-dependent peroxidase and laccase were the leader enzymes and cherry sawdust/peptone medium the best stimulator of their activities, the effect of inducers on delignification potential of these species was studied during fermentation of that substrate. Veratryl alcohol was the best stimulator of laccase and phenylmethylsulfonyl fluoride of Mn-dependent peroxidase activity (27,610.0 and 1338.4 U/L, respectively). These inducers also increased cherry sawdust delignification selectivity, particularly in D. tricolor in the presence of phenylmethylsulfonyl fluoride (lignin:hemicellulose:cellulose = 32.1%:0.9%:11.7%). Owing to the presented results, studied species could have an important role in the phase of lignocellulose pretreatment in various biotechnological processes.
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Affiliation(s)
- Jasmina Ćilerdžić
- Faculty of Biology, University of Belgrade, Takovska 43, Belgrade, 11000, Serbia.
| | - Milica Galić
- Faculty of Biology, University of Belgrade, Takovska 43, Belgrade, 11000, Serbia
| | - Žarko Ivanović
- Institute for Plant Protection and Environment, Teodora Drajzera 9, Belgrade, 11000, Serbia
| | - Ilija Brčeski
- Faculty of Chemistry, University of Belgrade, Studentski Trg 12-16, Belgrade, 11000, Serbia
| | - Jelena Vukojević
- Faculty of Biology, University of Belgrade, Takovska 43, Belgrade, 11000, Serbia
| | - Mirjana Stajić
- Faculty of Biology, University of Belgrade, Takovska 43, Belgrade, 11000, Serbia
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Rühl M, Lange K, Kües U. Laccase production and pellet morphology of Coprinopsis cinerea transformants in liquid shake flask cultures. Appl Microbiol Biotechnol 2018; 102:7849-7863. [PMID: 30032435 DOI: 10.1007/s00253-018-9227-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 07/05/2018] [Indexed: 10/28/2022]
Abstract
Laccase production and pellet formation of transformants of Coprinopsis cinerea strain FA2222 of C. cinerea laccase gene lcc1 subcloned behind the gpdII-promoter from Agaricus bisporus were compared with a control transformant carrying no extra laccase gene. At the optimum growth temperature of 37 °C, maximal laccase yields of 2.9 U/ml were obtained by the best lcc1 transformant pYSK7-26 in liquid shake flask cultures. Reduction in temperature to 25 °C increased laccase yields up to 9.2 U/ml. The control transformant had no laccase activities at 37 °C but native activity at 25 °C (3.5 U/ml). Changing the temperature had severe effects on the morphology of the mycelial pellets formed during cultivation, but links of distinct pellet morphologies to native or recombinant laccase production could not be established. Automated image analysis was used to characterise pellet formation and morphological parameters (pellet area, diameter, convexity and mycelial structure). Cross sections of selected pellets showed that they differentiated in an outer rind and an inner medulla of loosened hyphae. Pellets at 25 °C had a small and dense outer zone and adopted with time a smooth surface. Pellets at 37 °C had a broader outer zone and a fringy surface due to generation of more and larger protuberances in the rind that when released can serve for production of further pellets.
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Affiliation(s)
- Martin Rühl
- Molecular Wood Biotechnology and Technical Mycology, Büsgen-Institute and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Büsgenweg 2, 37077, Goettingen, Germany.,Institute of Food Chemistry and Food Biotechnology, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Karin Lange
- Molecular Wood Biotechnology and Technical Mycology, Büsgen-Institute and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Büsgenweg 2, 37077, Goettingen, Germany
| | - Ursula Kües
- Molecular Wood Biotechnology and Technical Mycology, Büsgen-Institute and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Büsgenweg 2, 37077, Goettingen, Germany.
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Saroj P, P M, Narasimhulu K. Characterization of thermophilic fungi producing extracellular lignocellulolytic enzymes for lignocellulosic hydrolysis under solid-state fermentation. BIORESOUR BIOPROCESS 2018. [DOI: 10.1186/s40643-018-0216-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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Schneider WDH, Fontana RC, Mendonça S, de Siqueira FG, Dillon AJP, Camassola M. High level production of laccases and peroxidases from the newly isolated white-rot basidiomycete Marasmiellus palmivorus VE111 in a stirred-tank bioreactor in response to different carbon and nitrogen sources. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.03.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Laccase production in bioreactor scale under saline condition by the marine-derived basidiomycete Peniophora sp. CBMAI 1063. Fungal Biol 2018; 122:302-309. [PMID: 29665956 DOI: 10.1016/j.funbio.2018.01.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 01/25/2018] [Accepted: 01/31/2018] [Indexed: 11/21/2022]
Abstract
Laccase production in saline conditions is still poorly studied. The aim of the present study was to investigate the production of laccase in two different types of bioreactors by the marine-derived basidiomycete Peniophora sp. CBMAI 1063. The highest laccase activity and productivity were obtained in the Stirred Tank (ST) bioreactor, while the highest biomass concentration in Air-lift (AL) bioreactor. The main laccase produced was purified by ion exchange and size exclusion chromatography and appeared to be monomeric with molecular weight of approximately 55 kDa. The optimum oxidation activity was obtained at pH 5.0. The thermal stability of the enzyme ranged from 30 to 50 °C (120 min). The Far-UV Circular Dichroism revealed the presence of high β-sheet and low α-helical conformation in the protein structure. Additional experiments carried out in flask scale showed that the marine-derived fungus was able to produce laccase only in the presence of artificial seawater and copper sulfate. Results from the present study confirmed the fungal adaptation to marine conditions and its potential for being used in saline environments and/or processes.
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Wyman V, Henríquez J, Palma C, Carvajal A. Lignocellulosic waste valorisation strategy through enzyme and biogas production. BIORESOURCE TECHNOLOGY 2018; 247:402-411. [PMID: 28961446 DOI: 10.1016/j.biortech.2017.09.055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 09/05/2017] [Accepted: 09/06/2017] [Indexed: 05/25/2023]
Abstract
Lignocellulosic wastes are generally pre-treated to facilitate the hydrolysis stage during the anaerobic digestion process. A process consisting of solid state fermentation carried out by white rot fungi and anaerobic digestion was evaluated on corn stover to produce ligninolytic enzymes and biogas. The enzyme production was quantified every 3d for a month at 30°C, and three fungal strains and two particle sizes of waste were compared. Of the main outcomes, Pleurotus eryngii produced the highest laccase enzyme activity compared with Pleurotus ostreatus and Trametes versicolor. Furthermore, this activity was improved by 16% when copper was used as an enzyme inducer. On the other hand, most of the conditions studied showed a decrease in maximum biogas production compared with untreated waste, the addition of copper decreased biogas production by 20%. Despite the above, Pleurotus eryngii showed promising results allowing a 19% increase of biogas production and high enzyme production values.
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Affiliation(s)
- Valentina Wyman
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Av. Vicuña Mackenna 3939, Santiago, Chile
| | - Josefa Henríquez
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Av. Vicuña Mackenna 3939, Santiago, Chile
| | - Carolyn Palma
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Av. Vicuña Mackenna 3939, Santiago, Chile
| | - Andrea Carvajal
- Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Av. Vicuña Mackenna 3939, Santiago, Chile.
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Kumar VP, Kolte AP, Dhali A, Naik C, Sridhar M. Enhanced delignification of lignocellulosic substrates by Pichia GS115 expressed recombinant laccase. J GEN APPL MICROBIOL 2018; 64:180-189. [DOI: 10.2323/jgam.2017.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Vidya Pradeep Kumar
- Bioenergetics and Environmental Sciences Division, National Institute of Animal Nutrition and Physiology
| | - Atul P. Kolte
- Animal Nutrition Division, National Institute of Animal Nutrition and Physiology
| | - Arindam Dhali
- Bioenergetics and Environmental Sciences Division, National Institute of Animal Nutrition and Physiology
| | | | - Manpal Sridhar
- Bioenergetics and Environmental Sciences Division, National Institute of Animal Nutrition and Physiology
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Elisashvili V, Kachlishvili E, Asatiani MD, Darlington R, Kucharzyk KH. Physiological Peculiarities of Lignin-Modifying Enzyme Production by the White-Rot Basidiomycete Coriolopsis gallica Strain BCC 142. Microorganisms 2017; 5:microorganisms5040073. [PMID: 29149086 PMCID: PMC5748582 DOI: 10.3390/microorganisms5040073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/09/2017] [Accepted: 11/16/2017] [Indexed: 11/16/2022] Open
Abstract
Sixteen white-rot Basidiomycota isolates were screened for production of lignin-modifying enzymes (LME) in glycerol- and mandarin peel-containing media. In the synthetic medium, Cerrena unicolor strains were the only high laccase (Lac) (3.2–9.4 U/mL) and manganese peroxidase (MnP) (0.56–1.64 U/mL) producers while one isolate Coriolopsis gallica was the only lignin peroxidase (LiP) (0.07 U/mL) producer. Addition of mandarin peels to the synthetic medium promoted Lac production either due to an increase in fungal biomass (Funalia trogii, Trametes hirsuta, and T. versicolor) or enhancement of enzyme production (C. unicolor, Merulius tremellosus, Phlebia radiata, Trametes ochracea). Mandarin peels favored enhanced MnP and LiP secretion by the majority of the tested fungi. The ability of LiP activity production by C. gallica, C. unicolor, F. trogii, T. ochracea, and T. zonatus in the medium containing mandarin-peels was reported for the first time. Several factors, such as supplementation of the nutrient medium with a variety of lignocellulosic materials, nitrogen source or surfactant (Tween 80, Triton X-100) significantly influenced production of LME by a novel strain of C. gallica. Moreover, C. gallica was found to be a promising LME producer with a potential for an easy scale up cultivation in a bioreactor and high enzyme yields (Lac-9.4 U/mL, MnP-0.31 U/mL, LiP-0.45 U/mL).
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Affiliation(s)
- Vladimir Elisashvili
- Agricultural University of Georgia, 240 David Agmashenebeli Alley, 0159 Tbilisi, Georgia.
| | - Eva Kachlishvili
- Agricultural University of Georgia, 240 David Agmashenebeli Alley, 0159 Tbilisi, Georgia.
| | - Mikheil D Asatiani
- Agricultural University of Georgia, 240 David Agmashenebeli Alley, 0159 Tbilisi, Georgia.
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Martani F, Beltrametti F, Porro D, Branduardi P, Lotti M. The importance of fermentative conditions for the biotechnological production of lignin modifying enzymes from white-rot fungi. FEMS Microbiol Lett 2017; 364:3888816. [DOI: 10.1093/femsle/fnx134] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 06/23/2017] [Indexed: 01/04/2023] Open
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Barapatre A, Jha H. Degradation of alkali lignin by two ascomycetes and free radical scavenging activity of the products. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2017.1327953] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Anand Barapatre
- Department of Biotechnology, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, India
| | - Harit Jha
- Department of Biotechnology, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, India
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43
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Xiao YZ, Chen Q, Hang J, Shi YY, Xiao YZ, Wu J, Hong YZ, Wang YP. Selective induction, purification and characterization of a laccase isozyme from the basidiomyceteTrametessp. AH28-2. Mycologia 2017. [DOI: 10.1080/15572536.2005.11832993] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | | | - Y. Y. Shi
- Laboratory of Structure Biology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. of China
| | | | | | | | - Y. P. Wang
- Laboratory of Microorganism and Gene Technology, School of Life Sciences, Anhui University, Hefei, Anhui, 230039, P.R. of China
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Fungal Pretreatment of Willow Sawdust with Abortiporus biennis for Anaerobic Digestion: Impact of an External Nitrogen Source. SUSTAINABILITY 2017. [DOI: 10.3390/su9010130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
Laccases are multi-copper oxidoreductases which catalyze the oxidation of a wide range of substrates during the simultaneous reduction of oxygen to water. These enzymes, originally found in fungi, plants, and other natural sources, have many industrial and biotechnological applications. They are used in the food, textile, pulp, and paper industries, as well as for bioremediation purposes. Although natural hosts can provide relatively high levels of active laccases after production optimization, heterologous expression can bring, moreover, engineered enzymes with desired properties, such as different substrate specificity or improved stability. Hence, diverse hosts suitable for laccase production are reviewed here, while the greatest emphasis is placed on yeasts which are commonly used for industrial production of various proteins. Different approaches to optimize the laccase expression and activity are also discussed in detail here.
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Affiliation(s)
- Zuzana Antošová
- Department of Membrane Transport, Institute of Physiology, Czech Academy of Sciences (CAS), Vídeňská 1083, 142 20, Prague 4, Czech Republic.
| | - Hana Sychrová
- Department of Membrane Transport, Institute of Physiology, Czech Academy of Sciences (CAS), Vídeňská 1083, 142 20, Prague 4, Czech Republic.
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Kumar S, Arumugam N, Permaul K, Singh S. Chapter 5 Thermostable Enzymes and Their Industrial Applications. Microb Biotechnol 2016. [DOI: 10.1201/9781315367880-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023] Open
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Kaur K, Singh G, Gupta V, Capalash N, Sharma P. Impact of phosphate and other medium components on physiological regulation of bacterial laccase production. Biotechnol Prog 2016; 33:541-548. [PMID: 27863181 DOI: 10.1002/btpr.2408] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 10/25/2016] [Indexed: 11/06/2022]
Abstract
Laccases are multicopper oxidases known to catalyze the transformation of a wide range of phenolic and non-phenolic substrates using oxygen as electron acceptor and forming water as the only by product. Their potential relevance in several industries requires the constant search for novel laccases. Positive outcome of the isolation of laccase producing bacteria depends on the nature and concentration of media constituents. Several attempts to isolate laccase producing bacteria failed when the phosphate-containing M9 minimal medium was used. Shift to phosphate-less M162 medium led to successful isolations. Seven bacterial isolates belonging to genera Bacillus, Lysinibacillus, Bhargavaea and Rheinheimera were used to study the effect of medium constituents on laccase production. Inorganic phosphate (≥50 mM) was found to regulate laccase synthesis negatively though no inhibitory effect of phosphate (10-500 mM) was seen on laccase activity. All isolates ceased laccase synthesis when grown in the presence of tryptone (0.2-1%), with R. tangshanensis as an exception, or yeast extract (1.5-2%) as the only C/N source in M162 medium. Supplementation upto 0.1% of glucose in basal M162 medium increased laccase production in five isolates but decreased at higher concentrations. The influence of medium components on laccase synthesis was further affirmed by zymographic studies. These observations offer possibilities of isolating promising laccase producers from diverse environmental sources. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 33:541-548, 2017.
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Affiliation(s)
- Kavleen Kaur
- Dept. of Microbiology, Panjab University, Chandigarh, India
| | - Gursharan Singh
- Biotechnology Branch, University Institute of Engineering & Technology, Panjab University, Chandigarh, India
| | - Vijaya Gupta
- Dept. of Microbiology, Panjab University, Chandigarh, India
| | - Neena Capalash
- Dept. of Biotechnology, Panjab University, Chandigarh, India
| | - Prince Sharma
- Dept. of Microbiology, Panjab University, Chandigarh, India
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Induction of Laccase, Lignin Peroxidase and Manganese Peroxidase Activities in White-Rot Fungi Using Copper Complexes. Molecules 2016; 21:molecules21111553. [PMID: 27869681 PMCID: PMC6274549 DOI: 10.3390/molecules21111553] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 11/03/2016] [Accepted: 11/11/2016] [Indexed: 11/16/2022] Open
Abstract
Ligninolytic enzymes, such as laccase, lignin peroxidase and manganese peroxidase, are biotechnologically-important enzymes. The ability of five white-rot fungal strains Daedaleopsis confragosa, Fomes fomentarius, Trametes gibbosa, Trametes suaveolens and Trametes versicolor to produce these enzymes has been studied. Three different copper(II) complexes have been prepared ((Him)[Cu(im)4(H2O)2](btc)·3H2O, where im = imidazole, H3btc = 1,3,5-benzenetricarboxylic acid, [Cu3(pmdien)3(btc)](ClO4)3·6H2O) and [Cu3(mdpta)3(btc)](ClO4)3·4H2O, where pmdien = N,N,N′,N′′,N′′-pentamethyl-diethylenetriamine and mdpta = N,N-bis-(3-aminopropyl)methyl- amine), and their potential application for laccase and peroxidases induction have been tested. The enzyme-inducing activities of the complexes were compared with that of copper sulfate, and it has been found that all of the complexes are suitable for the induction of laccase and peroxidase activities in white-rot fungi; however, the newly-synthesized complex M1 showed the greatest potential for the induction. With respect to the different copper inducers, this parameter seems to be important for enzyme activity, which depends also on the fungal strains.
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Isolation and Physicochemical Characterization of Laccase from Ganoderma lucidum-CDBT1 Isolated from Its Native Habitat in Nepal. BIOMED RESEARCH INTERNATIONAL 2016; 2016:3238909. [PMID: 27822471 PMCID: PMC5086383 DOI: 10.1155/2016/3238909] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Revised: 08/25/2016] [Accepted: 09/21/2016] [Indexed: 11/21/2022]
Abstract
At present, few organisms are known to and capable of naturally producing laccases and white rot fungi are one such group. In the present study, three fungal species, namely, Ganoderma lucidum-CDBT1, Ganoderma japonicum, and Lentinula edodes, isolated from their native habitat in Nepal were screened for laccase production, and G. lucidum-CDBT1 was found to express highest levels of enzyme (day 10 culture media showed 0.92 IU/mg total protein or 92 IU/mL laccase activity with ABTS as substrate). Lignin extracted from rice straw was used in Olga medium for laccase production and isolation from G. lucidum-CDBT1. Presence of lignin (5 g/L) and copper sulfate (30 μM) in the media increased the extracellular laccase content by 111% and 114%, respectively. The laccase enzyme produced by G. lucidum-CDBT1 was fractionated by ammonium sulfate and purified by DEAE Sepharose anion exchange chromatography. The purified enzyme was found to have a molecular mass of 43 kDa and exhibits optimal activity at pH 5.0 and 30°C. The isolated laccase was thermally stable for up to 70°C for 1 h and exhibited broad pH stability. The kinetic constants, Km, Vmax, and Kcat, determined using 2,2′-azinobis-(-3-ethylbenzothiazoline-6-sulfonic acid) as substrate were found to be 110 μM, 36 μmol/min/mg, and 246 min−1, respectively. The isolated thermostable laccase will be used in future experiments for delignification process.
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High-level production and characterization of laccase from a newly isolated fungus Trametes sp. LS-10C. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2016.10.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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