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Xiong N, Lv PJ, Song JW, Shen Q, Xue YP, Zheng YG. Engineering of a nitrilase through consensus sequence analysis and conserved site substitution to improve its thermostability and activity. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Abstract
Whole-cell immobilization by entrapment in natural polymers can be a tool for morphological control and facilitate biomass retention. In this study, the possibility of immobilizing the filamentous fungus Aspergillus oryzae for l-malic acid production was evaluated with the two carbon sources acetate and glucose. A. oryzae conidia were entrapped in alginate, agar, and κ-carrageenan and production was monitored in batch processes in shake flasks and 2.5-L bioreactors. With glucose, the malic acid concentration after 144 h of cultivation using immobilized particles was mostly similar to the control with free biomass. In acetate medium, production with immobilized conidia of A. oryzae in shake flasks was delayed and titers were generally lower compared to cultures with free mycelium. While all immobilization matrices were stable in glucose medium, disintegration of bead material and biomass detachment in acetate medium was observed in later stages of the fermentation. Still, immobilization proved advantageous in bioreactor cultivations with acetate and resulted in increased malic acid titers. This study is the first to evaluate immobilization of A. oryzae for malic acid production and describes the potential but also challenges regarding the application of different matrices in glucose and acetate media.
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Toprak A, Tükel SS, Yildirim D. Stabilization of multimeric nitrilase via different immobilization techniques for hydrolysis of acrylonitrile to acrylic acid. BIOCATAL BIOTRANSFOR 2021. [DOI: 10.1080/10242422.2020.1869217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ali Toprak
- Vocational School of Acigol, University of Nevsehir Haci Bektas Veli, Nevsehir, Turkey
- Department of Chemistry, Faculty of Science and Letters, University of Cukurova, Adana, Turkey
| | - S. Seyhan Tükel
- Department of Chemistry, Faculty of Science and Letters, University of Cukurova, Adana, Turkey
| | - Deniz Yildirim
- Department of Chemical Engineering, Faculty of Ceyhan Engineering, University of Cukurova, Adana, Turkey
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Naramittanakul A, Buttranon S, Petchsuk A, Chaiyen P, Weeranoppanant N. Development of a continuous-flow system with immobilized biocatalysts towards sustainable bioprocessing. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00189b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Implementing immobilized biocatalysts in continuous-flow systems can enable a sustainable process through enhanced enzyme stability, better transport and process continuity as well as simplified recycle and downstream processing.
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Affiliation(s)
- Apisit Naramittanakul
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Supacha Buttranon
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Atitsa Petchsuk
- National Metal and Materials Technology Center (MTEC), Pathum Thani 12120, Thailand
| | - Pimchai Chaiyen
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
| | - Nopphon Weeranoppanant
- School of Biomolecular Science and Engineering (BSE), Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand
- Department of Chemical Engineering, Faculty of Engineering, Burapha University, Chonburi 20131, Thailand
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Singh P, Kumari A, Chauhan K, Attri C, Seth A. Nitrile hydratase mediated green synthesis of lactamide by immobilizing Rhodococcus pyridinivorans NIT-36 cells on N, N'-Methylene bis-acrylamide activated chitosan. Int J Biol Macromol 2020; 161:168-176. [PMID: 32512095 DOI: 10.1016/j.ijbiomac.2020.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/23/2020] [Accepted: 06/01/2020] [Indexed: 10/24/2022]
Abstract
In this paper green synthesis of an important commodity chemical lactamide has been undertaken using chitosan immobilized Rhodococcus pyridinivorans NIT-36 harbouring nitrile hydratase (NHase) enzyme. The cells immobilization (300 mg/g) is based on the partial entrapment of cells by suspension cross-linking technique facilitated by N, N'-Methylene bis-acrylamide. In the repeated-use experiments, the immobilized cells retained 80% of its initial activity when stored at 4 °C for 30 days. NHase activity of free and immobilized cells was studied over temperature ranging from 25 °C to 60 °C. The activity for free cells showed a sharp decline of 70% when the reaction temperature was elevated from 45 °C to 50 °C whereas chitosan immobilized cells retained their activity in the same temperature range. A fed-batch reaction was designed and the immobilized cells showed 100% similar enzymatic pattern for five consecutive rounds which gradually decreased in following cycles. A volumetric productivity of 20 g/L and catalytic productivity of 8.33 g/g dcw/h for lactamide were achieved.
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Affiliation(s)
- Poonam Singh
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Bajhol, Solan (H.P.), India
| | - Ansu Kumari
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Bajhol, Solan (H.P.), India
| | - Kalpana Chauhan
- Department of Chemistry, School of Engineering and Technology, Central University of Haryana, Mahendergarh, Haryana, India
| | - Chandrika Attri
- Faculty of Applied Sciences and Biotechnology, Shoolini University, Bajhol, Solan (H.P.), India
| | - Amit Seth
- Department of Life Sciences (Botany), Manipur University, Imphal, Manipur, India.
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Sunder AV, Shah S, Rayavarapu P, Wangikar PP. Expanding the repertoire of nitrilases with broad substrate specificity and high substrate tolerance for biocatalytic applications. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Jamwal S, Dautoo UK, Ranote S, Dharela R, Chauhan GS. Enhanced catalytic activity of new acryloyl crosslinked cellulose dialdehyde-nitrilase Schiff base and its reduced form for nitrile hydrolysis. Int J Biol Macromol 2019; 131:117-126. [DOI: 10.1016/j.ijbiomac.2019.03.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/28/2019] [Accepted: 03/04/2019] [Indexed: 12/27/2022]
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Woodward JD, Trompetter I, Sewell BT, Piotrowski M. Substrate specificity of plant nitrilase complexes is affected by their helical twist. Commun Biol 2018; 1:186. [PMID: 30417123 PMCID: PMC6214922 DOI: 10.1038/s42003-018-0186-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 10/01/2018] [Indexed: 01/09/2023] Open
Abstract
Nitrilases are oligomeric, helix-forming enzymes from plants, fungi and bacteria that are involved in the metabolism of various natural and artificial nitriles. These biotechnologically important enzymes are often specific for certain substrates, but directed attempts at modifying their substrate specificities by exchanging binding pocket residues have been largely unsuccessful. Thus, the basis for their selectivity is still unknown. Here we show, based on work with two highly similar nitrilases from the plant Capsella rubella, that modifying nitrilase helical twist, either by exchanging an interface residue or by imposing a different twist, without altering any binding pocket residues, changes substrate preference. We reveal that helical twist and substrate size correlate and when binding pocket residues are exchanged between two nitrilases that show the same twist but different specificities, their specificities change. Based on these findings we propose that helical twist influences the overall size of the binding pocket.
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Affiliation(s)
- Jeremy D Woodward
- Division of Medical Biochemistry and Structural Biology, Department of Integrative Biomedical Sciences, University of Cape Town, Anzio Road, Observatory, Cape Town, 7925, South Africa.,Department of Molecular Genetics and Physiology of Plants, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Inga Trompetter
- Department of Molecular Genetics and Physiology of Plants, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - B Trevor Sewell
- Division of Medical Biochemistry and Structural Biology, Department of Integrative Biomedical Sciences, University of Cape Town, Anzio Road, Observatory, Cape Town, 7925, South Africa.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Anzio Road, Observatory, Cape Town, 7925, South Africa
| | - Markus Piotrowski
- Department of Molecular Genetics and Physiology of Plants, Ruhr-Universität Bochum, Universitätsstr. 150, 44801, Bochum, Germany.
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Virender Kumar, Kumar V, Singh AK, Verma N, Bhalla TC. A Potentiometric Biosensor for Cyanide Detection using Immobilized Whole Cell Cyanide Dihydratase of Flavobacterium indicum MTCC 6936. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s1061934818100039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Enhancing catalytic stability and cadaverine tolerance by whole-cell immobilization and the addition of cell protectant during cadaverine production. Appl Microbiol Biotechnol 2018; 102:7837-7847. [DOI: 10.1007/s00253-018-9190-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/21/2018] [Accepted: 06/23/2018] [Indexed: 11/25/2022]
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Dong TT, Gong JS, Gu BC, Zhang Q, Li H, Lu ZM, Lu ML, Shi JS, Xu ZH. Significantly enhanced substrate tolerance of Pseudomonas putida nitrilase via atmospheric and room temperature plasma and cell immobilization. BIORESOURCE TECHNOLOGY 2017; 244:1104-1110. [PMID: 28873512 DOI: 10.1016/j.biortech.2017.08.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/07/2017] [Accepted: 08/08/2017] [Indexed: 05/04/2023]
Abstract
The objective of the study was to enhance the substrate tolerance of Pseudomonas putida nitrilase via atmospheric and room temperature plasma (ARTP) and cell immobilization. The mutant library was constructed by ARTP and rapidly screened by an OPA-TCA microscale reaction. A mutant strain of mut-D3 was obtained and its optimum substrate concentration was improved to 150mM from 100mM. It could accumulate 189g/L nicotinic acid (NA) from 3-cyanopyridine (3-CP), which was increased by 42% compared with that of wild type (WT). Additionally, composite immobilization of mut-D3 was performed and SA-PVA immobilized cells could catalyze 250mM 3-CP each batch with finally accumulating 346g/L NA, while free cells accumulated 175g/L NA. These results indicated that the free or immobilized catalysts of mut-D3 could serve as a good choice for NA production. This is the first report on mutation breeding of nitrilase-producing microorganisms by ARTP.
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Affiliation(s)
- Ting-Ting Dong
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, PR China
| | - Jin-Song Gong
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, PR China
| | - Bing-Chen Gu
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, PR China
| | - Qiang Zhang
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, PR China
| | - Heng Li
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, PR China
| | - Zhen-Ming Lu
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, PR China
| | - Mao-Lin Lu
- Jiangsu Institute of Microbiology, Wuxi 214063, PR China
| | - Jin-Song Shi
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, PR China
| | - Zheng-Hong Xu
- School of Pharmaceutical Science, Jiangnan University, Wuxi 214122, PR China; National Engineering Laboratory for Cereal Fermentation Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, PR China.
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Li H, Dong W, Zhang Y, Liu K, Zhang W, Zhang M, Ma J, Jiang M. Enhanced catalytic efficiency of nitrilase from Acidovorax facilis 72W and application in bioconversion of 3-cyanopyridine to nicotinic acid. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2017.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jin LQ, Guo DJ, Li ZT, Liu ZQ, Zheng YG. Immobilization of nitrilase on bioinspired silica for efficient synthesis of 2-hydroxy-4-(methylthio) butanoic acid from 2-hydroxy-4-(methylthio) butanenitrile. ACTA ACUST UNITED AC 2016; 43:585-93. [DOI: 10.1007/s10295-016-1747-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 02/05/2016] [Indexed: 12/30/2022]
Abstract
Abstract
In this paper, a simple and effective method using sodium metasilicate as precursor and amine as additive was first reported to immobilize recombinant nitrilase, for efficient production of 2-hydroxy-4-(methylthio) butanoic acid from 2-hydroxy-4-(methylthio) butanenitrile. High immobilization recovery of enzyme activity (above 90 %) was achieved. The immobilized enzyme displayed better thermal stability, pH stability and shelf life compared to free nitrilase. Moreover, it showed excellent reusability and could be recycled up to 16 batches without significant loss in activity. 200 mM 2-hydroxy-4-(methylthio) butanenitrile was completely converted by the immobilized enzyme within 30 min, and the accumulation amount of 2-hydroxy-4-(methylthio) butanoic acid reached 130 mmol/g of immobilized beads after 16 batches. These encouraging results demonstrated the efficiency of the new technology for nitrilase immobilization, which has great potential in preparation of 2-hydroxy-4-(methylthio) butanoic acid.
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Affiliation(s)
- Li-Qun Jin
- grid.413273.0 0000000105748737 Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
- grid.413273.0 0000000105748737 Engineering Research Center of Bioconversion and Biopurification of Ministry of Education Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
| | - Dong-Jing Guo
- grid.413273.0 0000000105748737 Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
- grid.413273.0 0000000105748737 Engineering Research Center of Bioconversion and Biopurification of Ministry of Education Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
| | - Zong-Tong Li
- grid.413273.0 0000000105748737 Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
- grid.413273.0 0000000105748737 Engineering Research Center of Bioconversion and Biopurification of Ministry of Education Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
| | - Zhi-Qiang Liu
- grid.413273.0 0000000105748737 Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
- grid.413273.0 0000000105748737 Engineering Research Center of Bioconversion and Biopurification of Ministry of Education Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
| | - Yu-Guo Zheng
- grid.413273.0 0000000105748737 Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
- grid.413273.0 0000000105748737 Engineering Research Center of Bioconversion and Biopurification of Ministry of Education Zhejiang University of Technology 310014 Hangzhou People’s Republic of China
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Chen H, Chen Z, Ni Z, Tian R, Zhang T, Jia J, Chen K, Yang S. Display of Thermotoga maritima MSB8 nitrilase on the spore surface of Bacillus subtilis using out coat protein CotG as the fusion partner. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2015.11.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Immobilization of Escherichia coli cells expressing 4-oxalocrotonate tautomerase for improved biotransformation of β-nitrostyrene. Bioprocess Biosyst Eng 2015; 38:2389-95. [DOI: 10.1007/s00449-015-1474-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 09/21/2015] [Indexed: 10/23/2022]
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Encapsulated yeast cell-free system: A strategy for cost-effective and sustainable production of bio-ethanol in consecutive batches. BIOTECHNOL BIOPROC E 2015. [DOI: 10.1007/s12257-014-0855-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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