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Tataruch M, Illeová V, Miłaczewska A, Borowski T, Mihal' M, Polakovič M. Inactivation and aggregation of R-specific 1-(4-hydroxyphenyl)-ethanol dehydrogenase from Aromatoleum aromaticum. Int J Biol Macromol 2023; 234:123772. [PMID: 36812967 DOI: 10.1016/j.ijbiomac.2023.123772] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 12/11/2022] [Accepted: 02/15/2023] [Indexed: 02/22/2023]
Abstract
R-specific 1-(4-hydroxyphenyl)-ethanol dehydrogenase (R-HPED) is a promising biotool for stereoselective synthesis of chiral aromatic alcohols. This work focused on the evaluation of its stability under storage and in-process conditions in the pH range from 5.5 to 8.5. The relationship between the dynamics of aggregation and activity loss under various pH conditions and in the presence of glucose, serving as a stabilizer, was analysed using spectrophotometric techniques and dynamic light scattering. pH 8.5 was indicated as a representative environment in which the enzyme, despite relatively low activity, shows high stability and the highest total product yield. Based on a series of inactivation experiments, the mechanism of thermal inactivation at pH 8.5 was modelled. The irreversible first-order mechanism of R-HPED inactivation in the temperature range of 47.5-60 °C was verified by isothermal and multi-temperature evaluation of data, confirming that in the alkaline pH 8.5, R-HPED aggregation is the secondary process occurring at already inactivated protein molecules. The rate constants were from 0.029 min-1 to 0.380 min-1 for a buffer solution but they decreased to 0.011 min-1 and 0.161 min-1, respectively, when 1.5 M glucose was added as a stabilizer. The activation energy was however about 200 kJ mol-1 in both cases.
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Affiliation(s)
- Mateusz Tataruch
- Institute of Chemical and Environmental Engineering, Slovak Technical University, Radlinského 9, 812 37 Bratislava, Slovakia; Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, PL-30-239 Krakow, Poland
| | - Viera Illeová
- Institute of Chemical and Environmental Engineering, Slovak Technical University, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Anna Miłaczewska
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, PL-30-239 Krakow, Poland
| | - Tomasz Borowski
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, PL-30-239 Krakow, Poland
| | - Mario Mihal'
- Institute of Chemical and Environmental Engineering, Slovak Technical University, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Milan Polakovič
- Institute of Chemical and Environmental Engineering, Slovak Technical University, Radlinského 9, 812 37 Bratislava, Slovakia.
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Ostrihoňová M, Cabadaj P, Polakovič M. Design of frontal chromatography separation of 1-phenylethanol and acetophenone using a hydrophobic resin. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123578] [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: 03/13/2023]
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3
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Karkeszová K, Antošová M, Potocká EK, Mastihuba V, Polakovič M. Medium engineering of phenylethanoid transfructosylation catalysed by yeast β-fructofuranosidase. Bioprocess Biosyst Eng 2023; 46:237-249. [PMID: 36463528 DOI: 10.1007/s00449-022-02828-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/30/2022] [Indexed: 12/07/2022]
Abstract
Tyrosol and hydroxytyrosol, by-products of olive oil production, are valuable substrates for enzymatic transglycosylation that can provide products with pharmaceutical potential. Phenylethanoid fructosides are produced from sucrose and phenylethanoids by the catalytic action of β-fructofuranosidases. This work dealt with the potential of the most abundant β-fructofuranosidase, baker's yeast invertase, for this bioconversion. The effects of sucrose and phenylethanoid concentrations were investigated with a focus on the selectivity of phenylethanoid transfructosylation and fructoside yields. For this purpose, initial rate and progress curve experiments were carried out for the initial (hydroxy)tyrosol and sucrose concentrations of 0.072-0.3 M and 1-2 M, respectively. Reaction courses exhibited either a maximum or plateau of fructoside yield in the range of about 10-18%. The addition of deep eutectic solvents was applied in the concentration range from 5 to 70% (v/v) to investigate the possibility of shifting the reaction equilibrium towards fructoside synthesis.
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Affiliation(s)
- Klaudia Karkeszová
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Monika Antošová
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Elena Karnišová Potocká
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 38, Bratislava, Slovakia
| | - Vladimír Mastihuba
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 38, Bratislava, Slovakia
| | - Milan Polakovič
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
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Kurák T, Polakovič M. Adsorption Performance of a Multimodal Anion-Exchange Chromatography Membrane: Effect of Liquid Phase Composition and Separation Mode. Membranes (Basel) 2022; 12:1173. [PMID: 36557080 PMCID: PMC9788217 DOI: 10.3390/membranes12121173] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Abstract
Membrane chromatography is a modern, high-throughput separation method that finds important applications in therapeutic protein purification. Multimodal, salt-tolerant membranes are the most recent innovation in chromatographic membrane adsorbents. Due to the complex structure of their ligands and the bimodal texture of their carriers, their adsorption properties have not been sufficiently investigated. This work deals with the equilibrium and kinetic properties of a multimodal anion-exchange chromatography membrane, Sartobind STIC. Single- and two-component adsorption experiments were carried out with bovine serum albumin (BSA) and salmon DNA as model target and impurity components. The effect of the Hofmeister series ions and ionic strength on the BSA/DNA adsorption was investigated in micromembrane flow experiments. A significant difference was observed between the effects of monovalent and polyvalent ions when strong kosmotropic salts with polyvalent anions acted as strong displacers of BSA. On the contrary, DNA binding was rather high at elevated ionic strength, independent of the salt type. Two-component micromembrane experiments confirmed very high selectivity of DNA binding at a rather low sodium sulfate feed content and at pH 8. The strength of binding was examined in more than a dozen different desorption experiments. While BSA was desorbed relatively easily using high salt concentrations independent of buffer type and pH, while DNA was desorbed only in a very limited measure under any conditions. Separation experiments in a laboratory membrane module were carried out for the feed containing 1 g/L of BSA, 0.3 g/L of DNA, and 0.15 M of sodium sulfate. The negative flow-through mode was found to be more advantageous than the bind-elute mode, as BSA was obtained with 99% purity and a 97% yield. Membrane reuse was investigated in three adsorption-desorption-regeneration cycles.
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Ostrihoňová M, Gramblička M, Polakovič M. Industrial hydrophobic adsorbent screening for the separation of 1-phenylethanol and acetophenone. Food and Bioproducts Processing 2022. [DOI: 10.1016/j.fbp.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hollá V, Karkeszová K, Antošová M, Polakovič M. Transglycosylation properties of a Kluyveromyces lactis enzyme preparation: Production of tyrosol β-fructoside using free and immobilized enzyme. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Marták J, Liptaj T, Polakovič M, Schlosser Š. New phosphonium ionic liquid with neodecanoate anion as butyric acid extractant. Chem Pap 2021. [DOI: 10.1007/s11696-021-01607-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Molnár T, Bartošová M, Antošová M, Škultéty Ľ, Polakovič M. Design of a three-step chromatographic process of recombinant human erythropoietin purification. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118673] [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: 10/21/2022]
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Hollá V, Hill R, Antošová M, Polakovič M. Design of immobilized biocatalyst and optimal conditions for tyrosol β-galactoside production. Bioprocess Biosyst Eng 2020; 44:93-101. [PMID: 32816074 DOI: 10.1007/s00449-020-02425-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 04/21/2020] [Accepted: 08/07/2020] [Indexed: 12/24/2022]
Abstract
Tyrosol β-galactoside (TG) is a phenylethanoid glycoside with proven neuroprotective properties. This work deals with its biocatalytic production from tyrosol and lactose using Aspergillus oryzae β-galactosidase in immobilized form. Six commercial carriers were examined to find the optimal biocatalyst. Besides standard biocatalyst performance characteristics, adsorption of the hydrophobic substrate on immobilization carrier matrices was also investigated. The adsorption of tyrosol was significant, but it did not have adverse effects on TG production. On the contrary, TG yield was improved for some biocatalysts. A biocatalyst prepared by covalent binding of β-galactosidase on an epoxy-activated carrier was used for detailed investigation of the effect of reaction conditions on glycoside production. Temperature had a surprisingly weak effect on the overall process rate. A lactose concentration of 0.83 M was found to be optimal to enhance TG formation. The impact of tyrosol concentration was rather complex. This substrate caused inhibition of all reactions. Its concentration had a strong effect on the hydrolysis of lactose and all products. Higher tyrosol concentrations, 30-40 g/L, were favorable as pseudo-equilibrium concentrations of TG and galactooligosaccharide were reached. Repeated batch results revealed excellent operational stability of the biocatalyst.
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Affiliation(s)
- Veronika Hollá
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Rhiannon Hill
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Monika Antošová
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Milan Polakovič
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
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Illeová V, Šefčík J, Polakovič M. Thermal inactivation of jack bean urease. Int J Biol Macromol 2020; 151:1084-1090. [PMID: 31739065 DOI: 10.1016/j.ijbiomac.2019.10.150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 07/30/2019] [Revised: 10/16/2019] [Accepted: 10/16/2019] [Indexed: 10/25/2022]
Abstract
Thermal inactivation of oligomeric enzymes results in complex structural changes. This work deals with thermal inactivation of a native hexamer, jack bean urease. In order to find the mechanism and kinetics of thermal inactivation corresponding well with the modification of tertiary and quaternary structure of this enzyme, several types of experiments were carried out in the temperature range of 65-85 °C. Inactivation data exhibited the characteristic biphasic character. Dynamic light scattering experiments revealed a significant increase of the mean hydrodynamic radius of urease with temperature and time. A significant contribution to understanding the mechanism of inactivation was provided by native gel electrophoresis data of inactivated samples. Simultaneous fit of inactivation data verified a two-step mechanism composed of reversible unfolding/folding reaction followed by a relatively fast aggregation of the denatured urease form. A complex reaction scheme containing numerous oligomeric forms was thus described by a relatively simple model which suitably represents the main types of reactions involved in the urease activity loss.
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Affiliation(s)
- Viera Illeová
- Department of Chemical and Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Ján Šefčík
- Department of Chemical and Process Engineering, University of Strathclyde, 75 Montrose Street, Glasgow G1 1XJ, United Kingdom
| | - Milan Polakovič
- Department of Chemical and Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia.
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Adamíková J, Wiśniewski Ł, Molnár T, Bartošová M, Antošová M, Illeová V, Flores-Ramírez G, Škultéty Ľ, Polakovič M. Selection of adsorbents for recombinant human erythropoietin purification. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.115761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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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Hollá V, Antošová M, Karkeszová K, Mastihuba V, Polakovič M. Screening of Commercial Enzymes for Transfructosylation of Tyrosol: Effect of Process Conditions and Reaction Network. Biotechnol J 2019; 14:e1800571. [DOI: 10.1002/biot.201800571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/20/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Veronika Hollá
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food TechnologySlovak University of TechnologyRadlinského 9 812 37 Bratislava Slovakia
| | - Monika Antošová
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food TechnologySlovak University of TechnologyRadlinského 9 812 37 Bratislava Slovakia
| | - Klaudia Karkeszová
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food TechnologySlovak University of TechnologyRadlinského 9 812 37 Bratislava Slovakia
| | - Vladimír Mastihuba
- Institute of Chemistry, Slovak Academy of SciencesDúbravská cesta 9 845 38 Bratislava Slovakia
| | - Milan Polakovič
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food TechnologySlovak University of TechnologyRadlinského 9 812 37 Bratislava Slovakia
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Adamíková J, Antošová M, Polakovič M. Chromatographic purification of recombinant human erythropoietin. Biotechnol Lett 2019; 41:483-493. [PMID: 30810853 DOI: 10.1007/s10529-019-02656-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 01/23/2019] [Accepted: 02/22/2019] [Indexed: 02/07/2023]
Abstract
Recombinant human erythropoietin is a valuable therapeutic protein used in the treatment of several serious diseases. It exists in different isoforms and is produced by genetically modified mammalian cells such as Chinese hamster ovary or human embryonic kidney cells. As for other biopharmaceutical drugs, a key factor for its successful industrial production is to achieve a high degree of purity and to decrease the content of critical impurities to trace amounts. This goal is achieved in the separation sequence which substantial part is formed by chromatographic steps. Therefore, downstream processing forms an essential part of production costs. This review presents the overview of published separation sequences and, analyzes the use of different types of chromatographic media such as affinity, ion-exchange, reversed-phase, hydrophobic interaction, multimodal, and size-exclusion chromatography adsorbents. Their application is discussed with regard to their place in the purification stages generally denoted as capture, intermediate purification and polishing.
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Affiliation(s)
- Jana Adamíková
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Monika Antošová
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Milan Polakovič
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
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Molnár T, Bartošová M, Antošová M, Škultéty Ľ, Polakovič M. Cost-effective indirect ELISA method for determination of recombinant human erythropoietin in production streams. Chem Pap 2019. [DOI: 10.1007/s11696-019-00680-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Adamíková J, Antošová M, Polakovič M. A Method of Early Phase Selection of Carrier for Aspergillus Oryzae β
-Galactosidase Immobilization for Galactooligosaccharides Production. Biotechnol J 2018; 14:e1800120. [DOI: 10.1002/biot.201800120] [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] [Received: 02/25/2018] [Revised: 04/13/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Jana Adamíková
- Faculty of Chemical and Food Technology; Department of Chemical and Biochemical Engineering; Institute of Chemical and Environmental Engineering; Slovak University of Technology; Radlinského 9 812 37 Bratislava Slovakia
| | - Monika Antošová
- Faculty of Chemical and Food Technology; Department of Chemical and Biochemical Engineering; Institute of Chemical and Environmental Engineering; Slovak University of Technology; Radlinského 9 812 37 Bratislava Slovakia
| | - Milan Polakovič
- Faculty of Chemical and Food Technology; Department of Chemical and Biochemical Engineering; Institute of Chemical and Environmental Engineering; Slovak University of Technology; Radlinského 9 812 37 Bratislava Slovakia
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Polakovič M, Švitel J, Bučko M, Filip J, Neděla V, Ansorge-Schumacher MB, Gemeiner P. Progress in biocatalysis with immobilized viable whole cells: systems development, reaction engineering and applications. Biotechnol Lett 2017; 39:667-683. [PMID: 28181062 DOI: 10.1007/s10529-017-2300-y] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [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: 10/24/2016] [Accepted: 02/01/2017] [Indexed: 11/28/2022]
Abstract
Viable microbial cells are important biocatalysts in the production of fine chemicals and biofuels, in environmental applications and also in emerging applications such as biosensors or medicine. Their increasing significance is driven mainly by the intensive development of high performance recombinant strains supplying multienzyme cascade reaction pathways, and by advances in preservation of the native state and stability of whole-cell biocatalysts throughout their application. In many cases, the stability and performance of whole-cell biocatalysts can be highly improved by controlled immobilization techniques. This review summarizes the current progress in the development of immobilized whole-cell biocatalysts, the immobilization methods as well as in the bioreaction engineering aspects and economical aspects of their biocatalytic applications.
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Affiliation(s)
- Milan Polakovič
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak Technical University, Bratislava, Slovakia
| | - Juraj Švitel
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak Technical University, Bratislava, Slovakia
| | - Marek Bučko
- Department of Glycobiotechnology, Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Jaroslav Filip
- Center for Advanced Materials, Qatar University, Doha, Qatar
| | - Vilém Neděla
- Institute of Scientific Instruments, Academy of Sciences Czech Republic, Brno, Czech Republic
| | | | - Peter Gemeiner
- Department of Glycobiotechnology, Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia.
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Homola P, Kurák T, Illeová V, Polakovič M. Kinetics of acetophenone reduction to (R)-1-phenylethanol by a whole-cellPichia capsulatabiocatalyst. BIOCATAL BIOTRANSFOR 2016. [DOI: 10.3109/10242422.2016.1151007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Illeová V, Ačai P, Féher J, Polakovič M. Biotransformation of acetophenone to R-1-phenylethanol with immobilized Pichia capsulata in batch reactor. Acta Chimica Slovaca 2015. [DOI: 10.1515/acs-2015-0019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Biotransformation of acetophenone to R-1-phenylethanol with Pichia capsulata immobilized in Caalginate gel beads was studied. Experiments were carried out in a batch reactor stirred on an orbital shaker (300 rpm) at 25 ℃. Based on experimental data, uncoupled parameters of reaction kinetics (measurements with free cells) and diffusion coefficients (sorption method) were estimated. The model expressing the conversion of acetophenone with immobilized cells in the batch reactor consisted of mass balance equations of acetophenone and R-1-phenylethanol in the liquid and solid phases. A satisfactory agreement between the experimental and predicted values of acetophenone and R-1-phenylethanol concentrations was achieved
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Affiliation(s)
- Viera Illeová
- Institute of Chemical and Environmental Engineering, Slovak University of Technology, Bratislava
| | - Pavel Ačai
- Institute of Chemical and Environmental Engineering, Slovak University of Technology, Bratislava
| | - Jakub Féher
- Institute of Chemical and Environmental Engineering, Slovak University of Technology, Bratislava
| | - Milan Polakovič
- Institute of Chemical and Environmental Engineering, Slovak University of Technology, Bratislava
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Homola P, Kurák T, Illeová V, Polakovič M. Cultivation of Pichia capsulata as a whole-cell biocatalyst with NADH-dependent alcohol dehydrogenase activity for R -1-phenylethanol production. Food and Bioproducts Processing 2015. [DOI: 10.1016/j.fbp.2015.07.007] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Činčala Ľ, Illeová V, Antošová M, Štefuca V, Polakovič M. Investigation of plant sources of hydroperoxide lyase for 2(E)-hexenal production. Acta Chimica Slovaca 2015. [DOI: 10.1515/acs-2015-0027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
2(E)-hexenal is a green note flavour molecule that is widely used in various compositions of aromas, flavours and perfumery. As there is considerable demand for naturally produced aromas this article deals with some aspects of this C6-volatile production with regard to the selection of plant source material and reaction conditions. The following plants were tested for this purpose: runner bean (Phaseolus coccineus), common bean (Phaseolus vulgaris), three (Capsicum annuum) bell pepper varieties, garden cress (Lepidium sativum), green slicing cucumber (Cucumis sativa), mung beans (Vigna mungo) and brown lentils (Lens culinaris). Selection of source material was considered on the basis of 2(E)-hexenal yield and productivity. The common bean leafs were able to produce up to 35 mg of 2(E)-hexenal/kg fresh leaves.
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Affiliation(s)
- Ľubomír Činčala
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Viera Illeová
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Monika Antošová
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | | | - Milan Polakovič
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
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Kosior A, Antošová M, Faber R, Villain L, Polakovič M. Single-component adsorption of proteins on a cellulose membrane with the phenyl ligand for hydrophobic interaction chromatography. J Memb Sci 2013. [DOI: 10.1016/j.memsci.2013.04.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [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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Káňavová N, Kosior A, Antošová M, Faber R, Polakovič M. Application of a micromembrane chromatography module to the examination of protein adsorption equilibrium. J Sep Sci 2012; 35:3177-83. [DOI: 10.1002/jssc.201200396] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 06/04/2012] [Accepted: 06/04/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Natália Káňavová
- Department of Chemical and Biochemical Engineering; Institute of Chemical and Environmental Engineering; Faculty of Chemical and Food Technology; Slovak University of Technology; Bratislava Slovakia
| | - Anna Kosior
- Department of Chemical and Biochemical Engineering; Institute of Chemical and Environmental Engineering; Faculty of Chemical and Food Technology; Slovak University of Technology; Bratislava Slovakia
| | - Monika Antošová
- Department of Chemical and Biochemical Engineering; Institute of Chemical and Environmental Engineering; Faculty of Chemical and Food Technology; Slovak University of Technology; Bratislava Slovakia
| | - René Faber
- Sartorius Stedim Biotech AG; Göttingen Germany
| | - Milan Polakovič
- Department of Chemical and Biochemical Engineering; Institute of Chemical and Environmental Engineering; Faculty of Chemical and Food Technology; Slovak University of Technology; Bratislava Slovakia
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Onderková Z, Bryjak J, Vaňková K, Polakovič M. Kinetics of thermal inactivation of free Aureobasidium pullulans fructosyltransferase. Enzyme Microb Technol 2010. [DOI: 10.1016/j.enzmictec.2010.06.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [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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Barrande M, Beurroies I, Denoyel R, Tatárová I, Gramblička M, Polakovič M, Joehnck M, Schulte M. Characterisation of porous materials for bioseparation. J Chromatogr A 2009; 1216:6906-16. [DOI: 10.1016/j.chroma.2009.07.075] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2009] [Revised: 07/15/2009] [Accepted: 07/27/2009] [Indexed: 10/20/2022]
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Wrzosek K, Gramblička M, Polakovič M. Influence of ligand density on antibody binding capacity of cation-exchange adsorbents. J Chromatogr A 2009; 1216:5039-44. [DOI: 10.1016/j.chroma.2009.04.073] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2008] [Revised: 03/22/2009] [Accepted: 04/23/2009] [Indexed: 10/20/2022]
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Polakovič M, Čik M, Kayserova H, Jobbagyová H. HRCT and LFT in monitoring CF lung disease. J Cyst Fibros 2009. [DOI: 10.1016/s1569-1993(09)60267-8] [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: 10/20/2022]
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Ačai P, Sorrenti E, Gorner T, Polakovič M, Kongolo M, de Donato P. Pyrite passivation by humic acid investigated by inverse liquid chromatography. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2008.11.052] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Tatárová I, Gramblička M, Antošová M, Polakovič M. Characterization of pore structure of chromatographic adsorbents employed in separation of monoclonal antibodies using size-exclusion techniques. J Chromatogr A 2008; 1193:129-35. [DOI: 10.1016/j.chroma.2008.04.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Revised: 04/08/2008] [Accepted: 04/10/2008] [Indexed: 10/22/2022]
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Antošová M, Illeová V, Vandáková M, Družkovská A, Polakovič M. Chromatographic separation and kinetic properties of fructosyltransferase from Aureobasidium pullulans. J Biotechnol 2008; 135:58-63. [DOI: 10.1016/j.jbiotec.2008.02.016] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 02/06/2008] [Accepted: 02/18/2008] [Indexed: 11/26/2022]
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Wilińska A, de Figueiredo Rodrigues AS, Bryjak J, Polakovič M. Thermal inactivation of exogenous pectin methylesterase in apple and cloudberry juices. J FOOD ENG 2008. [DOI: 10.1016/j.jfoodeng.2007.08.009] [Citation(s) in RCA: 16] [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: 10/22/2022]
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Fehér E, Illeová V, Kelemen-Horváth I, Bélafi-Bakó K, Polakovič M, Gubicza L. Enzymatic production of isoamyl acetate in an ionic liquid–alcohol biphasic system. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.molcatb.2007.09.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Polakovič M, Kudláčová G, Štefuca V, Báleš V. Determination of sucrose effective diffusivity and intrinsic rate constant of hydrolysis catalysed by Ca-alginate entrapped cells. Chem Eng Sci 2001. [DOI: 10.1016/s0009-2509(00)00249-9] [Citation(s) in RCA: 6] [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: 10/18/2022]
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Polakovič M, Mandenius CF. Retrofit of continuous ethanol fermentation of low concentration sugar solutions by addition of a second, concentrated sugar feed. Process Biochem 1995. [DOI: 10.1016/0032-9592(95)87040-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Polakovič M, Báleš V, Dluhý M, Štefuca V. Optimization of a packed bed bioreactor with immobilized cells using experimental design. Bioprocess Biosyst Eng 1993. [DOI: 10.1007/bf00369406] [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: 11/28/2022]
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