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Alagöz D, Toprak A, Varan NE, Yildirim D, Tükel SS. Effective immobilization of lactate dehydrogenase onto mesoporous silica. Biotechnol Appl Biochem 2022; 69:2550-2560. [PMID: 34962677 DOI: 10.1002/bab.2304] [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: 08/24/2021] [Accepted: 12/08/2021] [Indexed: 12/27/2022]
Abstract
This study presents that covalent immobilization technique has been utilized for the immobilization of l-lactate dehydrogenase (l-LDH) from porcine on mesoporous silica. To develop mesoporous silica as support material for use in l-LDH immobilization, the particle surfaces were functionalized with 3-aminopropyltrimethoxysilane and further conjugated with glutaraldehyde. The effect of some parameters such as glutaraldehyde concentration, immobilization pH, initial enzyme concentration, and immobilization time was investigated and the optimum conditions for these parameters were determined as 1% (w/v), pH 8.0, 1 mg/ml, and 120 min, respectively. The maximum working pH and temperature for the oxidation of lactate to pyruvate reaction were determined as 10.0 and 35°C for free and 9.0 and 40°C for immobilized l-LDH, respectively. The kinetic parameters (Km and Vmax ) of l-LDH for the oxidation of lactate to pyruvate reaction were examined as 1.02 mM and 7.58 U/mg protein for free and 0.635 mM and 1.7 U/mg protein for immobilized l-LDH, respectively. Moreover, the immobilized l-LDH was 1.3-fold more stable than free l-LDH at 25°C according to calculated t1/2 values. The immobilized l-LDH retained 80% of its initial activity in a batch reactor after 14 reuses.
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Affiliation(s)
- Dilek Alagöz
- Imamoglu Vocational School, Cukurova University, Adana, Turkey
| | - Ali Toprak
- Acigol Vocational School, Nevsehir Haci Bektas Veli University, Nevsehir, Turkey
| | - Nazlı Ece Varan
- Chemistry Department, Sciences & Letters Faculty, Cukurova University, Adana, Turkey
| | - Deniz Yildirim
- Chemical Engineering Department, Ceyhan Engineering Faculty, Cukurova University, Adana, Turkey
| | - S Seyhan Tükel
- Chemistry Department, Sciences & Letters Faculty, Cukurova University, Adana, Turkey
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Alagöz D, Varan NE, Yildirim D, Fernandéz-Lafuente R. Optimization of the immobilization of xylanase from Thermomyces lanuginosus to produce xylooligosaccharides in a batch type reactor. Molecular Catalysis 2022. [DOI: 10.1016/j.mcat.2022.112647] [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: 10/14/2022]
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Alagöz D, Varan NE, Toprak A, Yildirim D, Tukel SS, Fernandez-Lafuente R. Immobilization of xylanase on differently functionalized silica gel supports for orange juice clarification. Process Biochem 2022. [DOI: 10.1016/j.procbio.2021.12.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Alagöz D, Toprak A, Yildirim D, Tükel SS, Fernandez-Lafuente R. Modified silicates and carbon nanotubes for immobilization of lipase from Rhizomucor miehei: Effect of support and immobilization technique on the catalytic performance of the immobilized biocatalysts. Enzyme Microb Technol 2020; 144:109739. [PMID: 33541574 DOI: 10.1016/j.enzmictec.2020.109739] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 08/09/2020] [Revised: 12/11/2020] [Accepted: 12/25/2020] [Indexed: 11/17/2022]
Abstract
Lipase from Rhizomucor miehei (RML) was covalently immobilized on different supports, two silica gels and two carbon nanotube samples, using two different strategies. RML was immobilized on 3-carboxypropyl silica gel (RML@Si-COOH) and multi-wall carbon nanotubes containing carboxylic acid functionalities (RML@MCNT-COOH) using a two-step carbodiimide activation/immobilization reaction. Moreover, the enzyme was also immobilized on 3-aminopropyl silica (RML@Si-Glu) and single-wall carbon nanotubes functionalized with 3-APTES and activated with glutaraldehyde (RML@SCNT-Glu). Before and after RML immobilization, the structurel properties of supports were characterized and compared in detail. After immobilization, the expressed activities were 36.9, 90.2, 16.9, and 26.1 % for RML@Si-COOH, RML@Si-Glu, RML@MCNT-COOH, and RML@SCNT-Glu, respectively. The kinetic parameters of free and immobilized RML samples were determined for three substrates, p-nitrophenyl acetate, p-nitrophenyl butyrate and p-nitrophenyl palmitate, and RML@Si-Glu showed higher catalytic efficiency than the other immobilized RML samples. RML@Si-COOH, RML@Si-Glu, RML@MCNT-COOH, and RML@SCNT-Glu exhibited 5.8, 7.6, 4.2 and 4.6 folds longer half-life values than those of the free enzyme at pH 7.5 and 40 °C. Recyclability studies showed that all the immobilized RML biocatalysts retained over 90 % of their initial activities after ten cycles in the hydrolysis of p-nitrophenyl butyrate.
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Affiliation(s)
- Dilek Alagöz
- Cukurova University, Imamoglu Vocational School, Adana, Turkey.
| | - Ali Toprak
- Cukurova University, Sciences & Letters Faculty, Chemistry Department, 01330, Adana, Turkey
| | - Deniz Yildirim
- Cukurova University, Ceyhan Engineering Faculty, Chemical Engineering Department, Adana, Turkey
| | - S Seyhan Tükel
- Cukurova University, Sciences & Letters Faculty, Chemistry Department, 01330, Adana, Turkey
| | - Roberto Fernandez-Lafuente
- Departamento De Biocatalisis, ICP-CSIC, C/Marie Crue 2, Campus UAM-CSIC, Cantoblanco, 28049, Madrid, Spain; Center of Excellence in Bionanoscience Research, Member of The External Scientific Advisory Board, King Abdulaziz University, Jeddah, Saudi Arabia.
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Yildirim D, Alagöz D, Toprak A, Tükel S, Fernandez-Lafuente R. Tuning dimeric formate dehydrogenases reduction/oxidation activities by immobilization. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.07.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Yildirim D, Toprak A, Alagöz D, Tukel SS. Protein-coated microcrystals of Prunus armeniaca hydroxynitrile lyase: an effective and recyclable biocatalyst for synthesis of (R)-mandelonitrile. Chem Pap 2018. [DOI: 10.1007/s11696-018-0577-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tükel S, Yildirim D, Alagöz D. Protein-coated microcrystals of Prunus armeniaca hydoxynitrile lyase for enantioselective synthesis of (R)-mandelonitrile. N Biotechnol 2016. [DOI: 10.1016/j.nbt.2016.06.1073] [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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Alagöz D, Tükel SS, Yildirim D. Immobilization of pectinase on silica-based supports: Impacts of particle size and spacer arm on the activity. Int J Biol Macromol 2016; 87:426-32. [DOI: 10.1016/j.ijbiomac.2016.03.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 10/22/2022]
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Binay B, Alagöz D, Yildirim D, Çelik A, Tükel SS. Highly stable and reusable immobilized formate dehydrogenases: Promising biocatalysts for in situ regeneration of NADH. Beilstein J Org Chem 2016; 12:271-7. [PMID: 26977186 PMCID: PMC4778513 DOI: 10.3762/bjoc.12.29] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 11/22/2015] [Accepted: 02/05/2016] [Indexed: 11/23/2022] Open
Abstract
This study aimed to prepare robust immobilized formate dehydrogenase (FDH) preparations which can be used as effective biocatalysts along with functional oxidoreductases, in which in situ regeneration of NADH is required. For this purpose, Candida methylica FDH was covalently immobilized onto Immobead 150 support (FDHI150), Immobead 150 support modified with ethylenediamine and then activated with glutaraldehyde (FDHIGLU), and Immobead 150 support functionalized with aldehyde groups (FDHIALD). The highest immobilization yield and activity yield were obtained as 90% and 132%, respectively when Immobead 150 functionalized with aldehyde groups was used as support. The half-life times (t1/2) of free FDH, FDHI150, FDHIGLU and FDHIALD were calculated as 10.6, 28.9, 22.4 and 38.5 h, respectively at 35 °C. FDHI150, FDHIGLU and FDHIALD retained 69, 38 and 51% of their initial activities, respectively after 10 reuses. The results show that the FDHI150, FDHIGLU and FDHIALD offer feasible potentials for in situ regeneration of NADH.
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Affiliation(s)
- Barış Binay
- Istanbul AREL University, Faculty of Science and Letters, Department of Molecular Biology and Genetics, Tepekent, Büyükcekmece, Istanbul, Turkey
| | - Dilek Alagöz
- University of Cukurova, Vocational School of Imamoglu, Adana, Turkey
| | - Deniz Yildirim
- University of Cukurova, Vocational School of Ceyhan, Adana, Turkey
| | - Ayhan Çelik
- Gebze Technical University, Department of Chemistry, Gebze, Kocaeli, Turkey
| | - S Seyhan Tükel
- University of Cukurova, Faculty of Arts and Sciences, Department of Chemistry, 01330, Adana, Turkey
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Alagöz D, Tükel SS, Yildirim D. Enantioselective Synthesis of Various Cyanohydrins Using Covalently Immobilized Preparations of Hydroxynitrile Lyase from Prunus dulcis. Appl Biochem Biotechnol 2015; 177:1348-63. [DOI: 10.1007/s12010-015-1819-4] [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: 06/01/2015] [Accepted: 08/17/2015] [Indexed: 02/06/2023]
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Yildirim D, Tükel SS, Alagöz D. Crosslinked enzyme aggregates of hydroxynitrile lyase partially purified from Prunus dulcis seeds and its application for the synthesis of enantiopure cyanohydrins. Biotechnol Prog 2014; 30:818-27. [PMID: 24799464 DOI: 10.1002/btpr.1925] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 12/11/2013] [Revised: 04/29/2014] [Indexed: 11/07/2022]
Abstract
Hydroxynitrile lyases are powerful catalysts in the synthesis of enantiopure cyanohydrins which are key synthons in the preparations of a variety of important chemicals. The response surface methodology including three-factor and three-level Box-Behnken design was applied to optimize immobilization of hydroxynitrile lyase purified partially from Prunus dulcis seeds as crosslinked enzyme aggregates (PdHNL-CLEAs). The quadratic model was developed for predicting the response and its adequacy was validated with the analysis of variance test. The optimized immobilization parameters were initial glutaraldehyde concentration, ammonium sulfate saturation concentration, and crosslinking time, and the response was relative activity of PdHNL-CLEA. The optimal conditions were determined as initial glutaraldehyde concentration of 25% w/v, ammonium sulfate saturation concentration of 43% w/v, and crosslinking time of 18 h. The preparations of PdHNL-CLEA were examined for the synthesis of (R)-mandelonitrile, (R)-2-chloromandelonitrile, (R)-3,4-dihydroxymandelonitrile, (R)-2-hydroxy-4-phenyl butyronitrile, (R)-4-bromomandelonitrile, (R)-4-fluoromandelonitrile, and (R)-4-nitromandelonitrile from their corresponding aldehydes and hydrocyanic acid. After 96-h reaction time, the yield-enantiomeric excess values (%) were 100-99, 100-21, 100-99, 83-91, 100-99, 100-72, and 100-14%, respectively, for (R)-mandelonitrile, (R)-2-chloromandelonitrile, (R)-3,4-dihydroxymandelonitrile, (R)-2-hydroxy-4-phenyl butyronitrile, (R)-4-bromomandelonitrile, (R)-4-fluoromandelonitrile, and (R)-4-nitromandelonitrile. The results show that PdHNL-CLEA offers a promising potential for the preparation of enantiopure (R)-mandelonitrile, (R)-3,4-dihydroxymandelonitrile, (R)-2-hydroxy-4-phenyl butyronitrile, and (R)-4-bromomandelonitrile with a high yield and enantiopurity.
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Affiliation(s)
- Deniz Yildirim
- Dept. of Chemistry, Faculty of Sciences & Letters, University of Cukurova, Adana, 01330, Turkey
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Alagöz D, Tükel SS, Yildirim D. Purification, immobilization and characterization of (R)-hydroxynitrile lyase from Prunus amygdalus turcomanica seeds and their applicability for synthesis of enantiopure cyanohydrins. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2013.12.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yildirim D, Tükel SS, Alptekin Ö, Alagöz D. Optimization of immobilization conditions of Mucor miehei lipase onto Florisil via polysuccinimide spacer arm using response surface methodology and application of immobilized lipase in asymmetric acylation of 2-amino-1-phenylethanols. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2013.12.003] [Citation(s) in RCA: 9] [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: 10/25/2022]
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Alagöz D, Yıldırım D, Tükel SS, Alptekin Ö. Cross linked enzyme aggregates of Prunus armeniaca hydroxynitrile lyase for synthesis of enantiopure (R)-cyanohydrins. Curr Opin Biotechnol 2013. [DOI: 10.1016/j.copbio.2013.05.154] [Citation(s) in RCA: 2] [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: 11/24/2022]
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Yildirim D, Alagöz D, Tükel SS, Alptekin Ö. Asymmetric acylation of (±)-2-amino-1-phenylethanols with vinyl acetate by immobilized Mucor miehei lipase. Curr Opin Biotechnol 2013. [DOI: 10.1016/j.copbio.2013.05.155] [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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Yildirim D, Tükel SS, Alptekin Ö, Alagöz D. Immobilized Aspergillus niger epoxide hydrolases: Cost-effective biocatalysts for the prepation of enantiopure styrene oxide, propylene oxide and epichlorohydrin. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.11.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [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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Alptekin Ö, Seyhan Tükel S, Yildirim D, Alagöz D. Covalent immobilization of catalase onto spacer-arm attached modified florisil: Characterization and application to batch and plug-flow type reactor systems. Enzyme Microb Technol 2011; 49:547-54. [DOI: 10.1016/j.enzmictec.2011.09.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 07/29/2011] [Accepted: 09/09/2011] [Indexed: 11/30/2022]
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Yildirim D, Tükel SS, Alagöz D, Alptekin Ö. Preparative-scale kinetic resolution of racemic styrene oxide by immobilized epoxide hydrolase. Enzyme Microb Technol 2011; 49:555-9. [DOI: 10.1016/j.enzmictec.2011.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 08/01/2011] [Accepted: 08/10/2011] [Indexed: 10/17/2022]
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Yildirim D, Alagöz D, Alptekin Ö, Tükel S. Preparative-Scale Kinetic Resolution of Racemic Styrene Oxide by Immobilized Epoxide Hydrolase. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.465] [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: 11/26/2022]
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Alptekin Ö, Tükel SS, Yildirim D, Alagöz D. Covalent immobilization of catalase from bovine liver onto Eupergit C 250L for potential bioreactor application. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.477] [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: 10/18/2022]
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Alagöz D, Yildirim D, Alptekin Ö, Tükel S. Immobilization and Characterization of Hydroxynitrile Lyase From Prunus armeniaca onto Eupergit Supports. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.470] [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: 10/18/2022]
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Alptekin Ö, Tükel SS, Yildirim D, Alagöz D. Covalent immobilization of catalase onto spacer-arm attached modified florisil: characterization and application to batch and plug-flow type reactor systems. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.478] [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: 11/30/2022]
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Alagöz D, Tükel S, Yildirim D, Alptekin Ö. Influence of The Immobilized (R)-Hydroxynitrile Lyase From Prunus pseudoarmenaca on (R)-Cyanohydrins Synthesis. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Tükel SS, Yildirim D, Alagöz D, Alptekin Ö, Yücebilgiç G, Bilgin R. Partial purification and immobilization of a new (R)-hydroxynitrile lyase from seeds of Prunus pseudoarmeniaca. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2010.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [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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Tükel SS, Yildirim D, Alagöz D, Alptekin Ö, Bilgin R. Partial purification and immobilization of a novel (R)-hydroxynitrile lyase from seeds of Prunus pseudoarmeniaca. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.455] [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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Senses DA, Silan F, Uzun H, Alagöz D, Zafer C, Kocabay K, Karaüzüm SB, Cetin Z. Partial trisomy 4(q31qter) due to maternal 4;5 balanced translocation in a neonate. Genet Couns 2007; 18:163-70. [PMID: 17710868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
We describe a male neonate with a duplication of 4(q31.3qter) due to unbalanced segregation of a maternal translocation (4;5)(31.3;p15.1). He has a high broad nasal bridge, large, low-set ears, epicanthal folds, long philtrum, retrognathia, high arched palate, wide-spaced nipples, bilateral single transverse palmar creases, bilateral clinodactyly of the fifth finger, right cryptorchidism, and ventricular and secundum type atrial septal defect.
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Affiliation(s)
- D A Senses
- Department of Pediatrics, Düzce University, School of Medicine, Düzce, Turkey.
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