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Feyzioğlu-Demir E, Üzüm ÖB, Akgöl S. Swelling and diffusion behaviour of spherical morphological polymeric hydrogel membranes (SMPHMs) containing epoxy groups and their application as drug release systems. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04368-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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2
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Fab fragment immobilized immunoaffinity cryogels as a tool for human serum albumin purification: Characterization of Fab immobilized cryogels. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1203:123311. [DOI: 10.1016/j.jchromb.2022.123311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 05/21/2022] [Accepted: 05/23/2022] [Indexed: 10/18/2022]
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3
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Tajbakhsh S, Hajiali F, Marić M. Epoxy-based triblock, diblock, gradient and statistical copolymers of glycidyl methacrylate and alkyl methacrylates by nitroxide mediated polymerization. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.105008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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4
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Yavaşer R, Karagözler AA. Laccase immobilized polyacrylamide-alginate cryogel: A candidate for treatment of effluents. Process Biochem 2021. [DOI: 10.1016/j.procbio.2020.11.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Hakkoymaz O, Mazi H. An immobilized invertase enzyme for the selective determination of sucrose in fruit juices. Anal Biochem 2020; 611:114000. [PMID: 33121955 DOI: 10.1016/j.ab.2020.114000] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 10/03/2020] [Accepted: 10/21/2020] [Indexed: 12/01/2022]
Abstract
Poly(N-vinylpyrrolidone-co-butylacrylate-co-N-hydroxymethylacrylamide) has been synthesized by free radical polymerization at 70 °C. Copolymer were characterized by FT-IR, elemental analysis and viscometric methods. Invertase was immobilized onto poly(N-vinyl pyrrolidone-co-butyl acrylate-co-N-hydroxymethyl acrylamide) by entrapment method. Optimum parameters (pH, temperature, substrate concentration, amount of polymer) for immobilization to obtain maximum activity were investigated. Kinetic parameters, Km and Vmax, of the free and immobilized invertases were also assayed. Results showed that immobilization enhanced the enzyme stability against changes of pH and temperature and immobilized enzyme showed lower Km value than free enzyme. One of the most interesting results is that the optimum operational temperature of the immobilized enzyme was 15 °C higher than that of the free enzyme. The next is the activity of the immobilized enzyme at the optimum temperature (70 °C) was approximately the same as the activity of the free enzyme at its optimum temperature (55 °C). Finally, immobilized invertase were used for determination of sucrose in commercial fruit juices. A new method and equation based on immobilized invertase were derived for determination of sucrose in commercial cheryy and pomegranate juices.
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Affiliation(s)
- Orhun Hakkoymaz
- Department of Chemistry, Gaziantep University, Faculty of Arts and Sciences, Gaziantep, 27310, Turkey
| | - Hidayet Mazi
- Department of Chemistry, Gaziantep University, Faculty of Arts and Sciences, Gaziantep, 27310, Turkey.
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Purification of Fab and Fc using papain immobilized cryogel bioreactor separator system. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1158:122396. [DOI: 10.1016/j.jchromb.2020.122396] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/04/2020] [Accepted: 09/18/2020] [Indexed: 11/21/2022]
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8
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Paljevac M, Krajnc P. Hierarchically porous poly(glycidyl methacrylate) through hard sphere and high internal phase emulsion templating. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123064] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Mishra A, Melo JS, Agrawal A, Kashyap Y, Sen D. Preparation and application of silica nanoparticles-Ocimum basilicum seeds bio-hybrid for the efficient immobilization of invertase enzyme. Colloids Surf B Biointerfaces 2020; 188:110796. [DOI: 10.1016/j.colsurfb.2020.110796] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 01/08/2020] [Accepted: 01/13/2020] [Indexed: 10/25/2022]
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Encapsulation of HRP Enzyme onto a Magnetic Fe3O4 Np–PMMA Film via Casting with Sustainable Biocatalytic Activity. Catalysts 2020. [DOI: 10.3390/catal10020181] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Horseradish peroxidase (HRP) enzyme was effectively encapsulated onto an Fe3O4 nanoparticle–polymethyl methacrylate (PMMA) film via the casting method. The HRP was immobilized on the 0.5% Fe3O4Np–PMMA film and characterized by Fourier transform infrared spectroscopy and field emission scanning electron microscopy. Moreover, the reusability, thermal stability, optimum pH, optimum temperature, the influence of metal ions, and the effects of detergent and organic solvent were investigated. After optimizing the immobilization conditions, the highest efficiency of the immobilized enzyme was 88.4% using 0.5% Fe3O4Np–PMMA. The reusability of the immobilized HRP activity was 78.5% of its initial activity after being repeatedly used for 10 cycles. When comparing the free and immobilized forms of the HRP enzyme, changes in the optimum temperature and optimum pH from 30 to 40 °C and 7.0 to 7.5, respectively, were observed. The Km and Vmax for the immobilized HRP were estimated to be 41 mM, 0.89 U/mL for guaiacol and 5.84 mM, 0.66 U/mL for H2O2, respectively. The high stability of the immobilized HRP enzyme was obtained using metal ions, a high urea concentration, isopropanol, and Triton X-100. In conclusion, the applicability of immobilized HRP involves the removal of phenol in the presence of hydrogen peroxide, therefore, it could be a potential catalyst for the removal of wastewater aromatic pollutants.
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Malhotra I, Basir SF. Immobilization of invertase in calcium alginate and calcium alginate-kappa-carrageenan beads and its application in bioethanol production. Prep Biochem Biotechnol 2020; 50:494-503. [PMID: 31900037 DOI: 10.1080/10826068.2019.1709979] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Invertase from Saccharomyces cerevisiae was entrapped in Ca-alginate and Ca-alginate-kappa-carrageenan matrix. Optimum pH for the free and immobilized invertase was found to be 4.5 and 5.5, respectively. The optimum hydrolysis temperature was 55 °C for both the free and immobilized forms. Km values for free invertase and invertase entrapped in Ca-alginate and Ca-alginate-kappa-carrageenan beads were 15, 21, and 19 mM, respectively. Values of Vmax for free invertase and invertase entrapped in Ca-alginate and Ca-alginate-kappa-carrageenan beads were 238, 186, and 197 mM min-1, respectively. Invertase entrapped in Ca-alginate-kappa-carrageenan matrix had the highest pH and thermal stability, higher reusability with 71% retention in activity after nine batches of reuse and higher storage stability with 86% activity retention after 12 weeks at 4 °C, pH 4.5. Fermentation of cane molasses by yeast for bioethanol formation in the presence of free invertase at 30 °C, pH 5.0, led to an increase in ethanol production by 3%. However, the production increased by 9% when invertase entrapped in Ca-alginate-kappa-carrageenan was used as a catalyst.HighlightsInvertase from Saccharomyces cerevisiae was entrapped in Ca-alginate beads.For efficient encapsulation of invertase, kappa-carrageenan was used in combination with alginate as a matrix.Entrapment in Ca-alginate-kappa-carrageenan increased pH and thermal stability of invertase.Invertase entrapped in Ca-alginate-kappa-carrageenan was used for bioethanol production from cane molasses.
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Affiliation(s)
- Ishita Malhotra
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
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Almulaiky YQ, El-Shishtawy RM, Aldhahri M, Mohamed SA, Afifi M, Abdulaal WH, Mahyoub JA. Amidrazone modified acrylic fabric activated with cyanuric chloride: A novel and efficient support for horseradish peroxidase immobilization and phenol removal. Int J Biol Macromol 2019; 140:949-958. [PMID: 31445147 DOI: 10.1016/j.ijbiomac.2019.08.179] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/19/2019] [Accepted: 08/20/2019] [Indexed: 12/20/2022]
Abstract
In this study, hydrazine treated acrylic fabrics (polyacrylonitrile, PAN) activated with cyanuric chloride was developed as supporting material for horseradish peroxidase (HRP) immobilization. The immobilization of HRP onto the modified supporting material was achieved after being end-over-end incubated for 12 h. Field emission scanning electron microscopy and Fourier-transform infrared spectroscopy techniques were used to confirm the successful immobilization. Reusability experiment was performed to estimate the ability of the immobilized HRP to recover the reaction medium, in which it was observed to retain 78% of its original activity after 10 cycles. Relative to the soluble HRP, the optimum pH and temperature for the immobilized HRP were shifted to 7-7.5 and 50 °C, respectively. The kinetic parameters of guaiacol and H2O2 for the immobilized HRP were determined to be Km/Vmax = 57.61, 11.35 and Kcat/Km = 1.87, 1.86, respectively, while the values for the free form were Km/Vmax = 41.49, 6.23 and Kcat/Km = 1.87, 1.86, respectively. Compared to the soluble form, the immobilized HRP exhibited higher resistance toward metal ions and some organic solvents. For an application perspective. The immobilization of HRP using this procedure has the potential to be used for industrial application and wastewater treatment.
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Affiliation(s)
- Yaaser Q Almulaiky
- Chemistry Department, Faculty of Sciences and Arts, University of Jeddah, Khulais, P.O. Box 355, Khulais 21921, Saudi Arabia; Chemistry Department, Faculty of Applied Science, Taiz University, Taiz, Yemen.
| | - Reda M El-Shishtawy
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, P. O. Box 80200, Jeddah 21589, Saudi Arabia; Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division, National Research Center, Dokki, 71516, Cairo, Egypt
| | - Musab Aldhahri
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, P. O. Box 80200, Jeddah 21589, Saudi Arabia; Center of Nanotechnology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Saleh A Mohamed
- Molecular Biology Department, National Research Centre, Cairo, Egypt
| | - Mohamed Afifi
- Department of Biochemistry, Faculty of Science, University of Jeddah, P.O. Box 80203, Jeddah 21589, Saudi Arabia; Biochemistry Department, Faculty of Veterinary Medicine, Zagazig University, Egypt
| | - Wesam H Abdulaal
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, P. O. Box 80200, Jeddah 21589, Saudi Arabia
| | - Jazem A Mahyoub
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
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Zhou J, Lin Y, Ye L, Wang L, Zhou L, Hu H, Zhang Q, Yang H, Luo Z. PVA Hydrogel Functionalization via PET-RAFT Grafting with Glycidyl Methacrylate and Immobilization with 2-Hydroxypropyltrimethyl Ammonium Chloride Chitosan via Ring-Open Reaction. Macromol Res 2019. [DOI: 10.1007/s13233-019-7152-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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14
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Tailoring the morphology and epoxy group content of glycidyl methacrylate-based polyHIPE monoliths via radiation-induced polymerization at room temperature. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4307-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Fei X, Chen S, Liu D, Huang C, Zhang Y. Comparison of amino and epoxy functionalized SBA-15 used for carbonic anhydrase immobilization. J Biosci Bioeng 2016; 122:314-21. [DOI: 10.1016/j.jbiosc.2016.02.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 02/04/2016] [Accepted: 02/08/2016] [Indexed: 12/22/2022]
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16
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Aydemir N, Malmström J, Travas-Sejdic J. Conducting polymer based electrochemical biosensors. Phys Chem Chem Phys 2016; 18:8264-77. [DOI: 10.1039/c5cp06830d] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Conducting polymer (CP)-based electrochemical biosensors have gained great attention as such biosensor platforms are easy and cost-effective to fabricate, and provide a direct electrical readout of the presence of biological analytes with high sensitivity and selectivity.
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Affiliation(s)
- Nihan Aydemir
- Polymer Electronics Research Centre
- School of Chemical Sciences
- University of Auckland
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Jenny Malmström
- Polymer Electronics Research Centre
- School of Chemical Sciences
- University of Auckland
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Jadranka Travas-Sejdic
- Polymer Electronics Research Centre
- School of Chemical Sciences
- University of Auckland
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
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Köse K, Erol K, Emniyet AA, Köse DA, Avcı GA, Uzun L. Fe(II)-Co(II) Double Salt Incorporated Magnetic Hydrophobic Microparticles for Invertase Adsorption. Appl Biochem Biotechnol 2015; 177:1025-39. [DOI: 10.1007/s12010-015-1794-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 08/02/2015] [Indexed: 11/24/2022]
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18
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Characterization of a thermo-tolerant mycelial β-fructofuranosidase from Aspergillus phoenicis under submerged fermentation using wheat bran as carbon source. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2015. [DOI: 10.1016/j.bcab.2015.05.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Welch ME, Doublet T, Bernard C, Malliaras GG, Ober CK. A glucose sensor via stable immobilization of the GOx enzyme on an organic transistor using a polymer brush. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27392] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- M. Elizabeth Welch
- Department of Materials Science & Engineering; Cornell University; Bard Hall, Ithaca New York 14853
- Department of Chemistry and Chemical Biology; Cornell University; Bard Hall, Ithaca New York 14853
| | - Thomas Doublet
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC; 880 route de Mimet 13541 Gardanne France
- Aix Marseille Université; INS UMR_S 1106; 13005 Marseille France
| | - Christophe Bernard
- Aix Marseille Université; INS UMR_S 1106; 13005 Marseille France
- Inserm, UMR_S 1106; 13005 Marseille France
| | - George G. Malliaras
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines, CMP-EMSE, MOC; 880 route de Mimet 13541 Gardanne France
| | - Christopher K. Ober
- Department of Materials Science & Engineering; Cornell University; Bard Hall, Ithaca New York 14853
- Department of Chemistry and Chemical Biology; Cornell University; Bard Hall, Ithaca New York 14853
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21
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Chakraborty S, Rusli H, Nath A, Sikder J, Bhattacharjee C, Curcio S, Drioli E. Immobilized biocatalytic process development and potential application in membrane separation: a review. Crit Rev Biotechnol 2014; 36:43-58. [DOI: 10.3109/07388551.2014.923373] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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22
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Ren T, Mao Z, Moya SE, Gao C. Immobilization of Enzymes on 2-Hydroxyethyl Methacrylate and Glycidyl Methacrylate Copolymer Brushes. Chem Asian J 2014; 9:2132-9. [DOI: 10.1002/asia.201402150] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 04/01/2014] [Indexed: 01/24/2023]
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23
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Facile approach to glycidyl methacrylate-based polyHIPE monoliths with high epoxy-group content. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-014-3295-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Donato L, Algieri C, Rizzi A, Giorno L. Kinetic study of tyrosinase immobilized on polymeric membrane. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.12.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Ahmed SA, El-Shayeb NMA, Hashem AM, Saleh SA, Abdel-Fattah AF. Biochemical studies on immobilized fungal β-glucosidase. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2013. [DOI: 10.1590/s0104-66322013000400007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Wu Y, Jiang Y, Jiao J, Liu M, Hu F, Griffiths BS, Li H. Adsorption of Trametes versicolor laccase to soil iron and aluminum minerals: enzyme activity, kinetics and stability studies. Colloids Surf B Biointerfaces 2013; 114:342-8. [PMID: 24225344 DOI: 10.1016/j.colsurfb.2013.10.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 09/15/2013] [Accepted: 10/10/2013] [Indexed: 11/27/2022]
Abstract
Laccases play an important role in the degradation of soil phenol or phenol-like substance and can be potentially used in soil remediation through immobilization. Iron and aluminum minerals can adsorb extracellular enzymes in soil environment. In the present study, we investigated the adsorptive interaction of laccase, from the white-rot fungus Trametes versicolor, with soil iron and aluminum minerals and characterized the properties of the enzyme after adsorption to minerals. Results showed that both soil iron and aluminum minerals adsorbed great amount of laccase, independent of the mineral specific surface areas. Adsorbed laccases retained 26-64% of the activity of the free enzyme. Compared to the free laccase, all adsorbed laccases showed higher Km values and lower Vmax values, indicating a reduced enzyme-substrate affinity and a lower rate of substrate conversion in reactions catalyzed by the adsorbed laccase. Adsorbed laccases exhibited increased catalytic activities compared to the free laccase at low pH, implying the suitable application of iron and aluminum mineral-adsorbed T. versicolor laccase in soil bioremediation, especially in acid soils. In terms of the thermal profiles, adsorbed laccases showed decreased thermal stability and higher temperature sensitivity relative to the free laccase. Moreover, adsorption improved the resistance of laccase to proteolysis and extended the lifespan of laccase. Our results implied that adsorbed T. versicolor laccase on soil iron and aluminum minerals had promising potential in soil remediation.
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Affiliation(s)
- Yue Wu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Ying Jiang
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Jiaguo Jiao
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Manqiang Liu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Feng Hu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | | | - Huixin Li
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
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Say R, Şenay RH, Biçen Ö, Ersöz A, Şişman Yılmaz F, Akgöl S, Denizli A. Polymeric amylase nanoparticles as a new semi-synthetic enzyme system for hydrolysis of starch. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1900-6. [DOI: 10.1016/j.msec.2012.12.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Revised: 10/06/2012] [Accepted: 12/16/2012] [Indexed: 01/28/2023]
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28
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Wang Y, Guan Y, Yang Y, Yu P, Huang Y. Enhancing the stability of immobilized catalase on activated carbon with gelatin encapsulation. J Appl Polym Sci 2013. [DOI: 10.1002/app.39226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yulin Wang
- State Key Laboratory of Chemical Resource Engineering, The Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; 15 Beisanhuan East Road; Beijing; 100029; People's Republic of China
| | - Yuepeng Guan
- Science College of Hunan Agricultural University; Furong District; Changsha City; Hunan Province; 410128; People's Republic of China
| | - Yin Yang
- State Key Laboratory of Chemical Resource Engineering, The Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; 15 Beisanhuan East Road; Beijing; 100029; People's Republic of China
| | - Peng Yu
- Science College of Hunan Agricultural University; Furong District; Changsha City; Hunan Province; 410128; People's Republic of China
| | - Yaqin Huang
- State Key Laboratory of Chemical Resource Engineering, The Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education; Beijing University of Chemical Technology; 15 Beisanhuan East Road; Beijing; 100029; People's Republic of China
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Abstract
Poly(methyl methacrylate-co-glycidyl methacrylate) (poly(MMA-co-GMA)) cryogels were synthesized by radical cryopolymerization technique. Then, laccase enzyme was covalently attached to the cryogel and characterized by using swelling studies and SEM and EDX analyses. Kinetic properties and optimum conditions of the immobilized and free laccase were studied and it was found that of the immobilized laccase was lower than that of free laccase. of the immobilized laccase was increased upon immobilization. Optimum pH was found to be 4.0 for each type of laccase, while optimum temperature was shifted to the warmer region after the immobilization. It was also found that thermal stability of the immobilized laccase was higher than that of free laccase. Immobilized laccase could be used for 10 times successive reuse with no significant decrease in its activity. Also, these laccase immobilized cryogels were successfully used for the decolorization of seven different dyes.
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30
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Kumar R, Kesavapillai B. Stimulation of extracellular invertase production from spent yeast when sugarcane pressmud used as substrate through solid state fermentation. SPRINGERPLUS 2012; 1:81. [PMID: 23420549 PMCID: PMC3568478 DOI: 10.1186/2193-1801-1-81] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 12/18/2012] [Indexed: 11/10/2022]
Abstract
Efforts were made to utilize the waste/by-product of two agro-process industries namely pressmud from sugar processing industries and spent yeast from distilleries manufacturing ethanol from cane molasses, for the production of microbial invertase. Our experimentation indicated that these two sources could be ideally utilized for the production of invertase through solid substrate fermentation (SSF). SSF with spent yeast had given highest specific activity of 430 U/mg in 72 h of fermentation. Inoculum percentage of yeast cells on pressmud was optimized as 50% (w/w) with a combination inoculum of spent yeast and fresh cultured yeast at a ratio of 7:3. Crude enzyme was characterized for optimum pH and temperature and maximum activity was recorded at pH 5.0 and at a temperature of 40°C. Impacts of metal ions and detergents on invertase action were studied in which Mn2+, Fe3+, Al3+ and detergents had enhanced the activity of the enzyme whereas Cu2+ and Zn2+ inhibited the enzyme activity. Purification of 9.8 folds was obtained by using three phase partition method.
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Affiliation(s)
- Rahul Kumar
- Technology Business Incubator (TBI), Bannari Amman Institute of Technology, Sathyamangalam, 638 401 India
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31
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Mendis M, Mendoza BR, Simsek S. Covalent Immobilization of Transglucosidase onto Polymer Beads for Production of Isomaltooligosaccharides. Catal Letters 2012. [DOI: 10.1007/s10562-012-0866-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Albertini A, Reis A, Teles F, Souza J, Filho JR, Freire V, Santos R, Martins J, Cavada B, Martins D, Martínez C, Filho JL. The new flow system approach in packed bed reactor applicable for immobilized enzyme. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rai A, Prabhune A, Perry CC. Entrapment of commercially important invertase in silica particles at physiological pH and the effect of pH and temperature on enzyme activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.01.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Padeste C, Farquet P, Potzner C, Solak HH. Nanostructured bio-functional polymer brushes. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 17:1285-300. [PMID: 17176750 DOI: 10.1163/156856206778667505] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Structured poly(glycidyl methracrylate) (poly-GMA) brushes have been grafted onto flexible fluoro-polymer films using a radiation grafting process. The reactive epoxide of poly-GMA provides the basis for a versatile biofunctionalization of the grafted brushes. Structure definition by extreme ultraviolet (EUV) exposure allowed nanometer-scale resolution of periodic patterns. By variation of the exposure dose the height of the grafted structures can be adapted in a wide range. Derivatization of the grafted brushes included reaction with various amines with different side chains, hydrolysis of the epoxide to diols to increase protein resistance and introduction of ionic groups to yield poly-electrolytes. As an example for biofunctionalization, biotin was linked to the grafted brush and biofunctionality was demonstrated in a competitive biotin-streptavidin assay. In this article we also present a brief review of other approaches to obtain structured biofunctional polymer brushes.
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Affiliation(s)
- Celestino Padeste
- Laboratory for Micro- and Nanotechnology, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland.
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A new immobilized glucose oxidase using SiO2 nanoparticles as carrier. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2011.05.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Stabilization of a raw starch digesting amylase from Aspergillus carbonarius via immobilization on activated and non-activated agarose gel. World J Microbiol Biotechnol 2011; 28:335-45. [DOI: 10.1007/s11274-011-0824-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2010] [Accepted: 06/13/2011] [Indexed: 10/18/2022]
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Cadena PG, Wiggers FN, Silva RA, Lima Filho JL, Pimentel MCB. Kinetics and bioreactor studies of immobilized invertase on polyurethane rigid adhesive foam. BIORESOURCE TECHNOLOGY 2011; 102:513-518. [PMID: 20875737 DOI: 10.1016/j.biortech.2010.08.096] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Revised: 08/20/2010] [Accepted: 08/24/2010] [Indexed: 05/29/2023]
Abstract
A new support, polyurethane rigid adhesive foam (PRAF), which can be used to cover internal surface of metallic tubes, was used to immobilize invertase for application in an enzymatic bioreactor. The kinetic parameters were: Km--46.5±1.9 mM (PRAF-invertase) and 61.2±0.1 mM (free enzyme) and Vmax 42.0±4.3 U/mg protein/min (PRAF-invertase) and 445.3±24.0 U/mg protein/min (free invertase). The PRAF-invertase derivative maintained 50.1% of initial activity (69.17 U/g support) for 8 months (4°C) and was not observed microbial contamination. The bioreactor showed the best production of inverted sugar syrup using up-flow rate (0.48 L/h) with average conversion of 10.64±1.5% h(-1) at feeding rate (D) of 104 h(-1). The operational inactivation rate constant (kopi) and half-life were 1.92×10(-4) min(-1) and 60 h (continue use). The PRAF spray support looks promising as a new alternative to produce immobilized derivatives on reactor surfaces.
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Affiliation(s)
- Pabyton G Cadena
- Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco (UFPE), Av. Prof. Moraes Rego, s/n, 50780-901 Recife, Pernambuco, Brazil
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Mubofu EB, Mdoe JEG, Kinunda G. The activity of invertase immobilized on cashew nut shell liquid-templated large pore silica hybrids. Catal Sci Technol 2011. [DOI: 10.1039/c1cy00033k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Akkaya A, Uslan AH. Sequential immobilization of urease to glycidyl methacrylate grafted sodium alginate. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2010.08.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Fernandes P. Enzymes in food processing: a condensed overview on strategies for better biocatalysts. Enzyme Res 2010; 2010:862537. [PMID: 21048872 PMCID: PMC2963163 DOI: 10.4061/2010/862537] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Accepted: 09/01/2010] [Indexed: 11/20/2022] Open
Abstract
Food and feed is possibly the area where processing anchored in biological agents has the deepest roots. Despite this, process improvement or design and implementation of novel approaches has been consistently performed, and more so in recent years, where significant advances in enzyme engineering and biocatalyst design have fastened the pace of such developments. This paper aims to provide an updated and succinct overview on the applications of enzymes in the food sector, and of progresses made, namely, within the scope of tapping for more efficient biocatalysts, through screening, structural modification, and immobilization of enzymes. Targeted improvements aim at enzymes with enhanced thermal and operational stability, improved specific activity, modification of pH-activity profiles, and increased product specificity, among others. This has been mostly achieved through protein engineering and enzyme immobilization, along with improvements in screening. The latter has been considerably improved due to the implementation of high-throughput techniques, and due to developments in protein expression and microbial cell culture. Expanding screening to relatively unexplored environments (marine, temperature extreme environments) has also contributed to the identification and development of more efficient biocatalysts. Technological aspects are considered, but economic aspects are also briefly addressed.
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Affiliation(s)
- Pedro Fernandes
- Institute for Biotechnology and Bioengineering (IBB), Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Avenue Rovisco Pais, 1049-001 Lisboa, Portugal
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El-Ghaffar MAA, Atia KS, Hashem MS. Synthesis and characterization of binary copolymers of methyl methacrylate with glycidyl methacrylate and 2-hydroxy ethyl methacrylate as carriers for cellulase. J Appl Polym Sci 2010. [DOI: 10.1002/app.30063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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El-Ghaffar MA, Hashem M. Chitosan and its amino acids condensation adducts as reactive natural polymer supports for cellulase immobilization. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.02.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cadena PG, Jeronimo RAS, Melo JM, Silva RA, Lima Filho JL, Pimentel MCB. Covalent immobilization of invertase on polyurethane, plast-film and ferromagnetic Dacron. BIORESOURCE TECHNOLOGY 2010; 101:1595-1602. [PMID: 19945280 DOI: 10.1016/j.biortech.2009.10.044] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2006] [Revised: 04/29/2008] [Accepted: 12/29/2008] [Indexed: 05/28/2023]
Abstract
Invertase was covalently immobilized on polyurethane (PU), inox plate covered with plast-film layer and ferromagnetic azide-Dacron. The immobilization processes, physico-chemical parameters and a model for coupling reactions were studied. The preliminary studies for selection of the support showed that the best activity was obtained for PU treated with HCl, polyethylenimine and glutaraldehyde (156.7+/-4.9 U/g support). All plast-film-invertase derivatives did not show activity and the Dacron-invertase derivative showed an activity of 105.39 U/g support. The invertase immobilized in presence of substrate (10% w/v sucrose) was the most efficient (832.74+/-1.48 U/g support). The optimal pH was shifted from 4.5 (free enzyme) to 5.0 (immobilized derivative) and optimal temperature was not affected. Activation energy values of free enzyme, Dacron-invertase and PU-invertase were 32.4+/-0.34 kJ/mol, 33.4+/-0.36 kJ/mol and 44.0+/-0.67 kJ/mol, respectively. The PU-invertase could be used over 2 months without considerable activity loss (68.5% activity retention) and retained 12.6% (287.97+/-27.9U/g support) of the activity after five cycles.
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Affiliation(s)
- P G Cadena
- Laboratório de Imunopatologia Keizo Asami, Universidade Federal de Pernambuco (UFPE), 50780-901 Recife, Pernambuco, Brazil
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Jackeray R, Jain S, Chattopadhyay S, Yadav M, Shrivastav TG, Singh H. Surface modification of nylon membrane by glycidyl methacrylate graft copolymerization for antibody immobilization. J Appl Polym Sci 2010. [DOI: 10.1002/app.31578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Akgöl S, Öztürk N, Denizli A. New generation polymeric nanospheres for lysozyme adsorption. J Appl Polym Sci 2009. [DOI: 10.1002/app.31294] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Barbetta A, Dentini M, Leandri L, Ferraris G, Coletta A, Bernabei M. Synthesis and characterization of porous glycidylmethacrylate–divinylbenzene monoliths using the high internal phase emulsion approach. REACT FUNCT POLYM 2009. [DOI: 10.1016/j.reactfunctpolym.2009.05.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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El-Ghaffar MAA, Hashem MS. Immobilization of α-amylase onto chitosan and its amino acid condensation adducts. J Appl Polym Sci 2009. [DOI: 10.1002/app.29292] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Tyagi C, Tomar LK, Singh H. Surface modification of cellulose filter paper by glycidyl methacrylate grafting for biomolecule immobilization: Influence of grafting parameters and urease immobilization. J Appl Polym Sci 2009. [DOI: 10.1002/app.28933] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Arica MY, Altintas B, Bayramoğlu G. Immobilization of laccase onto spacer-arm attached non-porous poly(GMA/EGDMA) beads: application for textile dye degradation. BIORESOURCE TECHNOLOGY 2009; 100:665-669. [PMID: 18768310 DOI: 10.1016/j.biortech.2008.07.038] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Revised: 07/21/2008] [Accepted: 07/23/2008] [Indexed: 05/26/2023]
Abstract
Non-porous poly(glycidyl methacrylate/ethyleneglycol dimetacrylate) (poly(GMA/EGDMA)) beads were prepared by suspension polymerization. The enzyme (i.e. laccase) was covalently immobilized onto plain and spacer-arm attached poly(GMA/EGDMA) beads. The amount of immobilized enzyme on the plain and spacer-arm attached beads was determined as 5.6 and 4.9 mg/g, respectively. The maximum activity (V(max)) and Michaelis constant (K(m)) of laccase immobilized on the spacer-arm attached beads, were found to be 77.6 U/min and 0.47 mM, respectively. Finally, the immobilized laccase was operated in a batch system, and textile dye Reactive Red 120 was successfully decolorized in the enzyme reactor.
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Affiliation(s)
- M Yakup Arica
- Gazi University, Faculty of Arts and Sciences, Biochemical Processing and Biomaterial Research Laboratory, 06500 Teknik Okullar, Ankara, Turkey
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