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Saikia K, Rathankumar AK, Kumar PS, Rangasamy G, Vaithyanathan VK, Vaidyanathan VK. Evaluating the potential of engineered Trichoderma atroviride and its laccase-mediated system for the efficient bioconversion of 5-hydroxymethylfufural. CHEMOSPHERE 2022; 308:136567. [PMID: 36152826 DOI: 10.1016/j.chemosphere.2022.136567] [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: 04/14/2022] [Revised: 09/09/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
5-Hydroxymethylfurfural (HMF) is a fermentation inhibitor which is formed during acid-based thermochemical pre-treatment of biomass. The present study involves two approaches for HMF conversion; the first includes screening and identification of fungal strains which produce oxidoreductases for HMF bioconversion, and thereafter evaluating their roles in HMF conversion. Out of the ten fungal strains screened, genetically engineered Trichoderma atroviride (Lac+) showed maximum HMF bioconversion and the activities of ligninolytic enzymes produced were noted. Maximum HMF conversion of 99% was achieved at pH 5.0 and 30 °C when 72 h old 10% inoculum of T. atroviride (Lac+) was utilized for 6 days. Based on the fungal bioconversion of HMF to 2, 5 diformylfuran with 58% yield, laccase was observed to influence the conversion process. Thus, a comparative study was established on HMF conversion by 100 U/mL of commercial laccases and partially purified laccase from T. atroviride (Lac+). In the presence of TEMPO, T. atroviride laccase showed comparable HMF conversion to commercial laccases, which establishes the efficiency of fungi and ligninolytic enzymes in bioconversion of HMF to value-added products.
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Affiliation(s)
- Kongkona Saikia
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India; Department of Biochemistry, FASCM, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India
| | - Abiram Karanam Rathankumar
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India; Department of Biotechnology, FoE, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu, 641 021, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, Tamil Nadu, 603 110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, Tamil Nadu, 603 110, India.
| | - Gayathri Rangasamy
- University Centre for Research and Development & Department of Civil Engineering, Chandigarh University, Gharuan, Mohali, Punjab, 140413, India
| | - Vasanth Kumar Vaithyanathan
- Department of Electronics and Communication Engineering, Hindustan Institute of Technology and Science, Chennai, India
| | - Vinoth Kumar Vaidyanathan
- Integrated Bioprocessing Laboratory, Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamil Nadu, 603203, India.
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Kaewlaoyoong A, Chen JR, Cheng CY, Lin C, Cheruiyot NK, Sriprom P. Innovative mycoremediation technique for treating unsterilized PCDD/F-contaminated field soil and the exploration of chlorinated metabolites. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 289:117869. [PMID: 34388555 DOI: 10.1016/j.envpol.2021.117869] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/25/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
Mycoremediation of unsterilized PCDD/F-contaminated field soil was successfully demonstrated by solid-state fermentation coupled with Pleurotus pulmonarius utilizing a patented incubation approach. The experiments were carried out in four setups with two as controls. The contaminated soil was homogenously mixed with solid inocula, 1:0.5 dry w/w, resulting in an initial concentration of 4432 ± 623 ng WHO-TEQ kg-1. After a 30-day incubation under controlled conditions, the overall removal (approx. 60%) was non-specific. The removal was attributed to degradation by extracellular ligninolytic enzymes and uptake into the fruiting tissue (~110 ng WHO-TEQ kg-1 of mushroom). Furthermore, less recalcitrant chlorinated metabolites were found, implying ether bond cleavage and dechlorination happened during the mycoremediation. These metabolites resulted from the complex interaction between P. pulmonarius and the indigenous microbes from the unsterilized soil. This study provides a new step toward scaling up this mycoremediation technique to treat unsterilized PCDD/F-contaminated field soil.
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Affiliation(s)
- Acharee Kaewlaoyoong
- Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 82445, Taiwan; Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Jenq-Renn Chen
- Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 82445, Taiwan
| | - Chih-Yu Cheng
- Department of Marine Biotechnology, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan
| | - Chitsan Lin
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan.
| | - Nicholas Kiprotich Cheruiyot
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, 81157, Taiwan
| | - Pongsert Sriprom
- Program of Food Process Engineering, Faculty of Food Industry, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
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Immobilization of the white-rot fungus Anthracophyllum discolor to degrade the herbicide atrazine. AMB Express 2016; 6:104. [PMID: 27815917 PMCID: PMC5097060 DOI: 10.1186/s13568-016-0275-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/27/2016] [Indexed: 11/10/2022] Open
Abstract
Herbicides cause environmental concerns because they are toxic and accumulate in the environment, food products and water supplies. There is a need to develop safe, efficient and economical methods to remove them from the environment, often by biodegradation. Atrazine is such herbicide. White-rot fungi have the ability to degrade herbicides of potential utility. This study formulated a novel pelletized support to immobilize the white-rot fungus Anthracophyllum discolor to improve its capability to degrade the atrazine using a biopurification system (BS). Different proportions of sawdust, starch, corn meal and flaxseed were used to generate three pelletized supports (F1, F2 and F3). In addition, immobilization with coated and uncoated pelletized supports (CPS and UPS, respectively) was assessed. UPS-F1 was determined as the most effective system as it provided high level of manganese peroxidase activity and fungal viability. The half-life (t1/2) of atrazine decreased from 14 to 6 days for the control and inoculated samples respectively. Inoculation with immobilized A. discolor produced an increase in the fungal taxa assessed by DGGE and on phenoloxidase activity determined. The treatment improves atrazine degradation and reduces migration to surface and groundwater.
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Lin Z, Zhen Z, Wu Z, Yang J, Zhong L, Hu H, Luo C, Bai J, Li Y, Zhang D. The impact on the soil microbial community and enzyme activity of two earthworm species during the bioremediation of pentachlorophenol-contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2016; 301:35-45. [PMID: 26342149 DOI: 10.1016/j.jhazmat.2015.08.034] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 08/19/2015] [Accepted: 08/20/2015] [Indexed: 06/05/2023]
Abstract
The ecological effect of earthworms on the fate of soil pentachlorophenol (PCP) differs with species. This study addressed the roles and mechanisms by which two earthworm species (epigeic Eisenia fetida and endogeic Amynthas robustus E. Perrier) affect the soil microbial community and enzyme activity during the bioremediation of PCP-contaminated soils. A. robustus removed more soil PCP than did E. foetida. A. robustus improved nitrogen utilisation efficiency and soil oxidation more than did E. foetida, whereas the latter promoted the organic matter cycle in the soil. Both earthworm species significantly increased the amount of cultivable bacteria and actinomyces in soils, enhancing the utilisation rate of the carbon source (i.e. carbohydrates, carboxyl acids, and amino acids) and improving the richness and evenness of the soil microbial community. Additionally, earthworm treatment optimized the soil microbial community and increased the amount of the PCP-4-monooxygenase gene. Phylogenic classification revealed stimulation of indigenous PCP bacterial degraders, as assigned to the families Flavobacteriaceae, Pseudomonadaceae and Sphingobacteriacea, by both earthworms. A. robustus and E. foetida specifically promoted Comamonadaceae and Moraxellaceae PCP degraders, respectively.
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Affiliation(s)
- Zhong Lin
- College of Agriculture, Guangdong Ocean University, Zhanjiang 524088, PR China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China
| | - Zhen Zhen
- College of Agriculture, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Zhihao Wu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China
| | - Jiewen Yang
- College of Agriculture, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Laiyuan Zhong
- College of Agriculture, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Hanqiao Hu
- College of Agriculture, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Chunling Luo
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, PR China
| | - Jing Bai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China
| | - Yongtao Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China.
| | - Dayi Zhang
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 2YW, UK.
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Hori C, Cullen D. Prospects for Bioprocess Development Based on Recent Genome Advances in Lignocellulose Degrading Basidiomycetes. Fungal Biol 2016. [DOI: 10.1007/978-3-319-27951-0_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Accinelli C, Saccà ML, Batisson I, Fick J, Mencarelli M, Grabic R. Removal of oseltamivir (Tamiflu) and other selected pharmaceuticals from wastewater using a granular bioplastic formulation entrapping propagules of Phanerochaete chrysosporium. CHEMOSPHERE 2010; 81:436-43. [PMID: 20673959 DOI: 10.1016/j.chemosphere.2010.06.074] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Accepted: 06/28/2010] [Indexed: 05/20/2023]
Abstract
The capacity of the ligninolytic fungus Phanerochaete chrysosporium to degrade a wide variety of environmentally persistent xenobiotics has been largely reported in the literature. Beside other factors, one barrier to a wider use of this bioremediation fungus is the availability of effective formulations that ensure easy preparation, handling and application. In this series of laboratory experiments, we evaluated the efficiency of a granular bioplastic formulation entrapping propagules of P. chrysosporium for removal of four selected pharmaceuticals from wastewater samples. Addition of inoculated granules to samples of the wastewater treatment plant of Bologna significantly increased the removal of the antiviral drug oseltamivir (Tamiflu), and the antibiotics, erythromycin, sulfamethoxazol, and ciprofloxacin. Similar effects were also observed in effluent water. Oseltamivir was the most persistent of the four active substances. After 30d of incubation, approximately two times more oseltamivir was removed in bioremediated wastewater than controls. The highest removal efficiency of the bioplastic formulation was observed with the antibiotic ciprofloxacin. Microbiological DNA-based analysis showed that the bioplastic matrix supported the growth of P. chrysosporium, thus facilitating its adaptation to unusual environment such as wastewater.
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Affiliation(s)
- Cesare Accinelli
- Department of Agro-Environmental Science and Technology, University of Bologna, Viale Fanin 44, Bologna, Italy.
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Leonardi V, Giubilei M, Federici E, Spaccapelo R, Šašek V, Novotny C, Petruccioli M, D'Annibale A. Mobilizing agents enhance fungal degradation of polycyclic aromatic hydrocarbons and affect diversity of indigenous bacteria in soil. Biotechnol Bioeng 2008; 101:273-85. [DOI: 10.1002/bit.21909] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Enzymatic characterization of Chilean native wood-rotting fungi for potential use in the bioremediation of polluted environments with chlorophenols. World J Microbiol Biotechnol 2008. [DOI: 10.1007/s11274-008-9810-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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