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Hajizadeh S, Dicko C, Bülow L. Interaction of haemin with albumin-based macroporous cryogel: Adsorption isotherm and fluorescence quenching studies. Front Bioeng Biotechnol 2022; 10:1072153. [DOI: 10.3389/fbioe.2022.1072153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/17/2022] [Indexed: 11/29/2022] Open
Abstract
Albumin-based cryogels for capturing haemin were synthesised by crosslinking different biomolecules, bovine serum albumin (BSA) and ovalbumin (OVA). The impact of the protein and coupling agent concentrations on cryogel’s mechanical properties, swelling ratios and polymerisation yields, as well as autoclaving as a post-treatment on the cryogel, were studied. We found that BSA (50 mg/ml) and the crosslinker (N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride, 46 mg/ml) formed a cryogel with optimum physical characteristics at a comparatively low protein concentration. The cryogel’s mechanical stability was increased using a double-layer cryogel approach by crosslinking the BSA proteins at subzero temperature inside an acrylamide and hydroxyethyl methacrylate premade cryogels. Batch binding and kinetic adsorption isotherms of haemin on the cryogels were assessed to evaluate their binding capacity toward the porphyrin molecule. The results showed that single-layer cryogels (BSA and OVA) had a higher capacity (∼0.68 mg/ml gel) and higher reaction rate constant towards haemin adsorption than double-layer gels. In contrast, the double-layer cryogels had higher mechanical strength than single-layer gels. The experimental results suggested that the cryogels followed the Freundlich model and the pseudo-second-order isotherm for batch adsorption and kinetics, respectively. The interaction between haemin and the gels was studied by fluorescence quenching. We found between 1.1 and 1.6 binding sites for different cryogels.
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Chen Y, Qiu X, Liu H, Chen S. Preparation of a laminated structured polyethyleneimine cryogel for carbon capture. J Environ Manage 2022; 317:115400. [PMID: 35653848 DOI: 10.1016/j.jenvman.2022.115400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
A cryogel solid amine adsorbent with a laminated structure has been prepared by crosslinking polyethylenimine (PEI) with ethylene glycol diglycidyl ether (EGDE) at a low temperature via liquid nitrogen treatment and freeze-drying. The effects of cryogenic treatment on the morphology of the cryogels were investigated. The liquid nitrogen treatment and freeze drying were critical to create the layered structure. The fast formation of ice crystals at 77 K served as a template which directed the ordered lamellar structure of the PEI and EGDE cross-linked polymer networks. The PEI cryogel adsorbent showed excellent CO2 adsorption performance both in dry and wet conditions. In dry conditions, the PEI-gel-5-0.25 cryogel showed a 5.60 mmol/g of CO2 adsorption capacity at 75 °C. After being swelled with water, the PEI-gel-15-0.25 cryogel showed an extremely high CO2 adsorption capacity of 11.39 mmol/g at 25 °C. The adsorption behaviors of adsorbents with varied water contents were explained using kinetic simulations and intraparticle diffusion simulations. It was found that the presence of water can significantly enhance the diffusion process. The regeneration performance was examined in both dry and wet conditions. After 20 adsorption-desorption cycles, the adsorption capacity of the regenerated PEI cryogel had barely decreased, indicating reliable regeneration stability.
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Affiliation(s)
- Yangguan Chen
- PCFM Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China.
| | - Xianyu Qiu
- PCFM Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China.
| | - Haorui Liu
- PCFM Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China.
| | - Shuixia Chen
- PCFM Lab, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, PR China; Materials Science Institute, Sun Yat-Sen University, Guangzhou, 510275, PR China.
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Vamsi Krishna K, Bharathi N, George Shiju S, Alagesan Paari K, Malaviya A. An updated review on advancement in fermentative production strategies for biobutanol using Clostridium spp. Environ Sci Pollut Res Int 2022; 29:47988-48019. [PMID: 35562606 DOI: 10.1007/s11356-022-20637-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
A significant concern of our fuel-dependent era is the unceasing exhaustion of petroleum fuel supplies. In parallel to this, environmental issues such as the greenhouse effect, change in global climate, and increasing global temperature must be addressed on a priority basis. Biobutanol, which has fuel characteristics comparable to gasoline, has attracted global attention as a viable green fuel alternative among the many biofuel alternatives. Renewable biomass could be used for the sustainable production of biobutanol by the acetone-butanol-ethanol (ABE) pathway. Non-extinguishable resources, such as algal and lignocellulosic biomass, and starch are some of the most commonly used feedstock for fermentative production of biobutanol, and each has its particular set of advantages. Clostridium, a gram-positive endospore-forming bacterium that can produce a range of compounds, along with n-butanol is traditionally known for its biobutanol production capabilities. Clostridium fermentation produces biobased n-butanol through ABE fermentation. However, low butanol titer, a lack of suitable feedstock, and product inhibition are the primary difficulties in biobutanol synthesis. Critical issues that are essential for sustainable production of biobutanol include (i) developing high butanol titer producing strains utilizing genetic and metabolic engineering approaches, (ii) renewable biomass that could be used for biobutanol production at a larger scale, and (iii) addressing the limits of traditional batch fermentation by integrated bioprocessing technologies with effective product recovery procedures that have increased the efficiency of biobutanol synthesis. Our paper reviews the current progress in all three aspects of butanol production and presents recent data on current practices in fermentative biobutanol production technology.
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Affiliation(s)
- Kondapalli Vamsi Krishna
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India
| | - Natarajan Bharathi
- Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, India
| | - Shon George Shiju
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India
| | | | - Alok Malaviya
- Applied and Industrial Biotechnology Laboratory, CHRIST (Deemed-to-Be University), Hosur road, Bangalore, Karnataka, India.
- Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, India.
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Tokuyama H, Aoyagi R, Fujita K, Maekawa Y, Riya S. Ethanol fermentation using macroporous monolithic hydrogels as yeast cell scaffolds. REACT FUNCT POLYM 2021; 169:105075. [DOI: 10.1016/j.reactfunctpolym.2021.105075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Berillo D, Al-Jwaid A, Caplin J. Polymeric Materials Used for Immobilisation of Bacteria for the Bioremediation of Contaminants in Water. Polymers (Basel) 2021; 13:1073. [PMID: 33805360 PMCID: PMC8037671 DOI: 10.3390/polym13071073] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 02/07/2023] Open
Abstract
Bioremediation is a key process for reclaiming polluted soil and water by the use of biological agents. A commonly used approach aims to neutralise or remove harmful pollutants from contaminated areas using live microorganisms. Generally, immobilised microorganisms rather than planktonic cells have been used in bioremediation methods. Activated carbon, inorganic minerals (clays, metal oxides, zeolites), and agricultural waste products are acceptable substrates for the immobilisation of bacteria, although there are limitations with biomass loading and the issue with leaching of bacteria during the process. Various synthetic and natural polymers with different functional groups have been used successfully for the efficient immobilisation of microorganisms and cells. Promise has been shown using macroporous materials including cryogels with entrapped bacteria or cells in applications for water treatment and biotechnology. A cryogel is a macroporous polymeric gel formed at sub-zero temperatures through a process known as cryogelation. Macroporous hydrogels have been used to make scaffolds or supports for immobilising bacterial, viral, and other cells. The production of composite materials with immobilised cells possessing suitable mechanical and chemical stability, porosity, elasticity, and biocompatibility suggests that these materials are potential candidates for a range of applications within applied microbiology, biotechnology, and research. This review evaluates applications of macroporous cryogels as tools for the bioremediation of contaminants in wastewater.
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Affiliation(s)
- Dmitriy Berillo
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK
- Department of Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan
- Department of Pharmaceutical and Toxicological Chemistry, Pharmacognosy and Botany School of Pharmacy, Asfendiyarov Kazakh National Medical University, Almaty 050000, Kazakhstan
| | - Areej Al-Jwaid
- School of Environment and Technology, University of Brighton, Brighton BN2 4GJ, UK; (A.A.-J.); (J.C.)
- Environment and Pollution Engineering Technical Department, Basrah Engineering Technical College, Southern Technical University, Basra 61003, Iraq
| | - Jonathan Caplin
- School of Environment and Technology, University of Brighton, Brighton BN2 4GJ, UK; (A.A.-J.); (J.C.)
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da Conceição Gomes A, Rodrigues MI, de França Passos D, Machado de Castro A, Maria Mello Santa Anna L, Pereira N. Acetone–butanol–ethanol fermentation from sugarcane bagasse hydrolysates: Utilization of C5 and C6 sugars. ELECTRON J BIOTECHN 2019; 42:16-22. [DOI: 10.1016/j.ejbt.2019.10.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Chaves GL, Mól PCG, Minim VPR, Minim LA. Hydrodynamics and dynamic capacity of cryogels produced with different monomer compositions. J Appl Polym Sci 2019. [DOI: 10.1002/app.48507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gabriel Luz Chaves
- Department of Food TechnologyProcess Development and Simulation Laboratory, Federal University of Viçosa, Campus Universitário 36570‐900 Viçosa Minas Gerais Brazil
| | - Paula Chequer Gouveia Mól
- Laboratory of Biochemistry and Applied MicrobiologyUNESP‐ São Paulo State University 15054‐000 São José do Rio Preto São Paulo Brazil
| | - Valéria Paula Rodrigues Minim
- Department of Food TechnologyProcess Development and Simulation Laboratory, Federal University of Viçosa, Campus Universitário 36570‐900 Viçosa Minas Gerais Brazil
| | - Luis Antonio Minim
- Department of Food TechnologyProcess Development and Simulation Laboratory, Federal University of Viçosa, Campus Universitário 36570‐900 Viçosa Minas Gerais Brazil
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Berillo DA, Caplin JL, Cundy AB, Savina IN. A cryogel-based bioreactor for water treatment applications. Water Res 2019; 153:324-334. [PMID: 30739074 DOI: 10.1016/j.watres.2019.01.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/12/2019] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
The aim of this study was to develop and test a non-diffusion limited, high cell density bioreactor for biodegradation of various phenol derivatives. The bioreactor was obtained using a straightforward one-step preparation method using cryostructuration and direct cross-linking of bacteria into a 3D structured (sponge-like) macroporous cryogel composite material consisting of 11.6% (by mass) cells and 1.2-1.7% polymer, with approximately 87% water (in the material pores). The macroporous cryogel composite material, composed of live bacteria, has pore sizes in the range of 20-150 μm (confirmed by SEM and Laser Scanning Confocal Microscopy). The enzymatic activity of bacteria within the cryogel structure and the effect of freezing on the viability of the cross-linked cells was estimated by MTT assay. Cryogels based on Pseudomonas mendocina, Rhodococcus koreensis and Acinetobacter radioresistens were exploited for the effective bioremediation of phenol and m-cresol, and to a lesser extent 2-chlorophenol and 4-chlorophenol, utilising these phenolic contaminants in water as their only source of carbon. For evaluation of treatment scalability the bioreactors were prepared in plastic "Kaldnes" carriers to improve their mechanical properties and allow application in batch or fluidised bed water treatment modes.
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Affiliation(s)
- Dmitriy A Berillo
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK.
| | - Jonathan L Caplin
- School of Environment and Technology, University of Brighton, Brighton, UK
| | - Andrew B Cundy
- School of Ocean and Earth Science, University of Southampton, Southampton, UK
| | - Irina N Savina
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK
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Ulu A, Noma SAA, Koytepe S, Ates B. Chloro-Modified Magnetic Fe3O4@MCM-41 Core–Shell Nanoparticles for L-Asparaginase Immobilization with Improved Catalytic Activity, Reusability, and Storage Stability. Appl Biochem Biotechnol 2018; 187:938-956. [DOI: 10.1007/s12010-018-2853-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 07/30/2018] [Indexed: 12/17/2022]
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Ibrahim MF, Kim SW, Abd-Aziz S. Advanced bioprocessing strategies for biobutanol production from biomass. Renewable and Sustainable Energy Reviews 2018; 91:1192-1204. [DOI: 10.1016/j.rser.2018.04.060] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Zhang W, Yang Y, Guan T, Guan J, Zheng S, Chen B, Yun J. Formation Dynamics of Cell-Loading Alginate Droplets in the Microtube Dripping and Cryo-Cross-Linking Process for Cell-Entrapped Cryogel Beads as the Biocatalysts toward Phenyllactic Acid Biosynthesis. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00831] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Wei Zhang
- Institute of Process Equipment and Control Engineering, College of Mechanical Engineering,Zhejiang University of Technology, Hangzhou 310032, China
| | - Yujun Yang
- Institute of Process Equipment and Control Engineering, College of Mechanical Engineering,Zhejiang University of Technology, Hangzhou 310032, China
| | - Tingting Guan
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Jintao Guan
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Sanlong Zheng
- Institute of Process Equipment and Control Engineering, College of Mechanical Engineering,Zhejiang University of Technology, Hangzhou 310032, China
| | - Bingbing Chen
- Institute of Process Equipment and Control Engineering, College of Mechanical Engineering,Zhejiang University of Technology, Hangzhou 310032, China
| | - Junxian Yun
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
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Al-Jwaid AK, Berillo D, Savina IN, Cundy AB, Caplin JL. One-step formation of three-dimensional macroporous bacterial sponges as a novel approach for the preparation of bioreactors for bioremediation and green treatment of water. RSC Adv 2018; 8:30813-30824. [PMID: 35548719 PMCID: PMC9085471 DOI: 10.1039/c8ra04219e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/14/2018] [Indexed: 11/21/2022] Open
Abstract
A novel method of crosslinking live bacteria into a stable 3D porous structure and its subsequent use in phenol degradation is reported.
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Affiliation(s)
- Areej K. Al-Jwaid
- School of Environment and Technology
- University of Brighton
- Brighton
- UK
- Engineering Technical College/Basrah
| | - Dmitriy Berillo
- School of Pharmacy and Biomolecular Sciences
- University of Brighton
- Brighton
- UK
| | - Irina N. Savina
- School of Pharmacy and Biomolecular Sciences
- University of Brighton
- Brighton
- UK
| | - Andrew B. Cundy
- School of Ocean and Earth Science
- University of Southampton
- Southampton
- UK
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Khoshnevisan K, Vakhshiteh F, Barkhi M, Baharifar H, Poor-Akbar E, Zari N, Stamatis H, Bordbar AK. Immobilization of cellulase enzyme onto magnetic nanoparticles: Applications and recent advances. Molecular Catalysis 2017. [DOI: 10.1016/j.mcat.2017.09.006] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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He CR, Lee MC, Kuo YY, Wu TM, Li SY. The influence of support structures on cell immobilization and acetone–butanol–ethanol (ABE) fermentation performance. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.05.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zaushitsyna O, Dishisha T, Hatti-Kaul R, Mattiasson B. Crosslinked, cryostructured Lactobacillus reuteri monoliths for production of 3-hydroxypropionaldehyde, 3-hydroxypropionic acid and 1,3-propanediol from glycerol. J Biotechnol 2016; 241:22-32. [PMID: 27829124 DOI: 10.1016/j.jbiotec.2016.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 10/13/2016] [Accepted: 11/04/2016] [Indexed: 11/28/2022]
Abstract
Crosslinked, cryostructured monoliths prepared from Lactobacillus reuteri cells were evaluated as potential immobilized whole-cell biocatalyst for conversion of glycerol, to potentially important chemicals for the biobased industry, i.e. 3-hydroxypropionaldehyde (3HPA), 3-hydroxypropionic acid (3HP) and 1,3-propanediol (1,3PDO). Glutaraldehyde, oxidized dextran and activated polyethyleneimine/modified polyvinyl alcohol (PEI/PVA) were evaluated as crosslinkers; the latter gave highly stable preparations with maintained viability and biocatalytic activity. Scanning electron microscopy of the PEI/PVA monoliths showed high density of crosslinked cells with wide channels allowing liquid flow through. Flux analysis of the propanediol-utilization pathway, incorporating glycerol/diol dehydratase, propionaldehyde dehydrogenase, 1,3PDO oxidoreductase, phosphotransacylase, and propionate kinase, for conversion of glycerol to the three chemicals showed that the maximum specific reaction rates were -562.6, 281.4, 62.4 and 50.5mg/gCDWh for glycerol consumption, and 3HPA (extracellular), 3HP and 1,3PDO production, respectively. Under optimal conditions using monolith operated as continuous plug flow reactor, 19.7g/L 3HPA was produced as complex with carbohydrazide at a rate of 9.1g/Lh and a yield of 77mol%. Using fed-batch operation, 1,3PDO and 3HP were co-produced in equimolar amounts with a yield of 91mol%. The monoliths embedded in plastic carriers showed high mechanical stability under different modes in a miniaturized plug flow reactor.
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Affiliation(s)
- Oksana Zaushitsyna
- Biotechnology, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Box 124, SE-221 00 Lund, Sweden
| | - Tarek Dishisha
- Biotechnology, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Box 124, SE-221 00 Lund, Sweden; Department of Microbiology and Immunology, Faculty of Pharmacy, Beni-Suef University, 62511 Beni-Suef, Egypt
| | - Rajni Hatti-Kaul
- Biotechnology, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Box 124, SE-221 00 Lund, Sweden.
| | - Bo Mattiasson
- Biotechnology, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Box 124, SE-221 00 Lund, Sweden
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Krasňan V, Stloukal R, Rosenberg M, Rebroš M. Immobilization of cells and enzymes to LentiKats®. Appl Microbiol Biotechnol 2016; 100:2535-53. [PMID: 26795964 DOI: 10.1007/s00253-016-7283-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/22/2015] [Accepted: 12/28/2015] [Indexed: 12/16/2022]
Abstract
Biocatalyst immobilization is one of the techniques, which can improve whole cells or enzyme applications. This method, based on the fixation of the biocatalyst into or onto various materials, may increase robustness of the biocatalyst, allows its reuse, or improves the product yield. In recent decades, a number of immobilization techniques have been developed. They can be divided according to the used natural or synthetic material and principle of biocatalyst fixation in the particle. One option, based on the entrapment of cells or enzymes into a synthetic polyvinyl alcohol lens with original shape, is LentiKats® immobilization. This review describes the preparation principle of these particles and summarizes existing successful LentiKats® immobilizations. In addition, examples are compared with other immobilization techniques or free biocatalysts, pointing to the advantages and disadvantages of LentiKats®.
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Affiliation(s)
- Vladimír Krasňan
- Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Radek Stloukal
- LentiKat's a.s., Pod Vinicí 83, 471 27, Stráž pod Ralskem, Czech Republic
| | - Michal Rosenberg
- Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Martin Rebroš
- Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
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Loyarkat S, Cheirsilp B, Prasertsan P. Two-stage repeated-batch fermentation of immobilized Clostridium beijerinckii on oil palm fronds for solvents production. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.04.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alonso S, Rendueles M, Díaz M. A novel approach to monitor stress-induced physiological responses in immobilized microorganisms. Appl Microbiol Biotechnol 2015; 99:3573-83. [DOI: 10.1007/s00253-015-6517-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 02/26/2015] [Accepted: 03/02/2015] [Indexed: 01/04/2023]
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Kong X, He A, Zhao J, Wu H, Jiang M. Efficient acetone-butanol-ethanol production (ABE) by Clostridium acetobutylicum XY16 immobilized on chemically modified sugarcane bagasse. Bioprocess Biosyst Eng 2015; 38:1365-72. [PMID: 25694132 DOI: 10.1007/s00449-015-1377-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 02/10/2015] [Indexed: 10/24/2022]
Abstract
Sugarcane bagasse was chemically modified by polyethylenimine (PEI) and glutaraldehyde (GA) and then used as a support to immobilize Clostridium acetobutylicum XY16 in the process of butanol production. Compared with batch fermentation using unmodified sugarcane bagasse, 22.3 g/L total solvents were produced by cells immobilized on 4 g/L PEI treated sugarcane bagasse with high solvent productivity of 0.62 g/(L h) and glucose consumption rate of 1.67 g/(L h). Improvement of 14, 43, and 37 % in total solvent titer, solvent productivity and glucose consumption rate was observed, respectively. Enhanced solvent production of 25.14 g/L was obtained when using a high concentration of glucose of 80 g/L. Continuous fermentation was studied using PEI/GA modified sugarcane bagasse as immobilization support with a range of dilution which rates from 0.2 to 2.5 to find an optimal condition. The maximum solvent productivity of 11.32 g/(L h) was obtained at a high dilution rate of 2.0 h(-1).
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Affiliation(s)
- Xiangping Kong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu South Road 30#, Nanjing, 211816, People's Republic of China
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Yun J, Cheng X, Ye J, Shen S, Yang G, Yao K, Kirsebom H, Lin D, Guan Y, Yao S. Chromatographic adsorption of serum albumin and antibody proteins in cryogels with benzyl-quaternary amine ligands. J Chromatogr A 2015; 1381:173-83. [DOI: 10.1016/j.chroma.2014.11.081] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 11/05/2014] [Accepted: 11/28/2014] [Indexed: 11/24/2022]
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Dolejš I, Krasňan V, Stloukal R, Rosenberg M, Rebroš M. Butanol production by immobilised Clostridium acetobutylicum in repeated batch, fed-batch, and continuous modes of fermentation. Bioresour Technol 2014; 169:723-730. [PMID: 25108474 DOI: 10.1016/j.biortech.2014.07.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 07/08/2014] [Accepted: 07/09/2014] [Indexed: 06/03/2023]
Abstract
Clostridium acetobutylicum immobilised in polyvinylalcohol, lens-shaped hydrogel capsules (LentiKats(®)) was studied for production of butanol and other products of acetone-butanol-ethanol fermentation. After optimising the immobilisation protocol for anaerobic bacteria, continuous, repeated batch, and fed-batch fermentations in repeated batch mode were performed. Using glucose as a substrate, butanol productivity of 0.41 g/L/h and solvent productivity of 0.63 g/L/h were observed at a dilution rate of 0.05 h(-1) during continuous fermentation with a concentrated substrate (60 g/L). Through the process of repeated batch fermentation, the duration of fermentation was reduced from 27.8h (free-cell fermentation) to 3.3h (immobilised cells) with a solvent productivity of 0.77 g/L/h (butanol 0.57 g/L/h). The highest butanol and solvent productivities of 1.21 and 1.91 g/L/h were observed during fed-batch fermentation operated in repeated batch mode with yields of butanol (0.15 g/g) and solvents (0.24 g/g), respectively, produced per gram of glucose.
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Affiliation(s)
- Igor Dolejš
- Institute of Biotechnology and Food Science, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia
| | - Vladimír Krasňan
- Institute of Biotechnology and Food Science, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia
| | - Radek Stloukal
- LentiKat's a.s., Pod Vinicí 83, 471 27 Stráž pod Ralskem, Czech Republic
| | - Michal Rosenberg
- Institute of Biotechnology and Food Science, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia
| | - Martin Rebroš
- Institute of Biotechnology and Food Science, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia.
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Jiang M, Chen JN, He AY, Wu H, Kong XP, Liu JL, Yin CY, Chen WF, Chen P. Enhanced acetone/butanol/ethanol production by Clostridium beijerinckii IB4 using pH control strategy. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.04.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zaushitsyna O, Berillo D, Kirsebom H, Mattiasson B. Cryostructured and Crosslinked Viable Cells Forming Monoliths Suitable for Bioreactor Applications. Top Catal 2013. [DOI: 10.1007/s11244-013-0189-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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