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Galodiya MN, Chakma S. Immobilization of enzymes on functionalized cellulose nanofibrils for bioremediation of antibiotics: Degradation mechanism, kinetics, and thermodynamic study. CHEMOSPHERE 2024; 349:140803. [PMID: 38040249 DOI: 10.1016/j.chemosphere.2023.140803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
The deteriorating environmental conditions due to increasing emerging recalcitrant pollutants raised a severe concern for its remediation. In this study, we have reported antibiotic degradation using free and immobilized HRP. The functionalized cellulose support was utilized for efficient immobilization of HRP. Approximately 13.32 ± 0.52 mg/g enzyme loading was achieved with >99% immobilization efficiency. The higher percentage of immobilization is attributed to the higher surface area and carboxylic groups on the support. The kinetic parameter of immobilized enzymes was Km = 2.99 mM/L for CNF-CA@HRP, which is 3.5-fold more than the Michaelis constant (Km = 0.84794 mM/L) for free HRP. The Vmax of CNF-CA@HRP bioconjugate was 2.36072 mM/min and 0.558254 mM/min for free HRP. The highest degradation of 50, 54.3, and 97% were achieved with enzymatic, sonolysis, and sono-enzymatic with CNF-CA@HRP bioconjugate, respectively. The reaction kinetics analysis revealed that applying ultrasound with an enzymatic process could enhance the reaction rate by 2.7-8.4 times compared to the conventional enzymatic process. Also, ultrasound changes the reaction from diffusion mode to the kinetic regime with a more oriented and fruitful collision between the molecules. The thermodynamic analysis suggested that the system was endothermic and spontaneous. While LC-MS analysis and OTC's degradation mechanism suggest, it mainly involves hydroxylation, secondary alcohol oxidation, dehydration, and decarbonylation. Additionally, the toxicity test confirmed that the sono-enzymatic process helps toward achieving complete mineralization. Further, the reusability of bioconjugate shows that immobilized enzymes are more efficient than the free enzyme.
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Affiliation(s)
- Manju Nagar Galodiya
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal, 462 066, Madhya Pradesh, India
| | - Sankar Chakma
- Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal, 462 066, Madhya Pradesh, India.
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Immobilization of Lipases on Modified Silica Clay for Bio-Diesel Production: The Effect of Surface Hydrophobicity on Performance. Catalysts 2022. [DOI: 10.3390/catal12020242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The hydrophobicity of a support plays a critical role in the catalytic efficiency of immobilized lipases. 3-aminopropyltriethoxysilane (APTES)-modified silica clay (A-SC) was coupled with silane coupling agents of different alkyl chains (methyl triethoxysilane, vinyl triethoxysilane, octyl triethoxysilane, and dodecyl triethoxysilane) to prepare a series of hydrophobic support for lipase immobilization. The lipases were immobilized onto the support by conducting glutaraldehyde cross-linking processes. The results showed that the activity of the immobilized biocatalyst increased with hydrophobicity. The hydrolytic activity of Lip-Glu-C12-SC (contact angle 119.8°) can reach 5900 U/g, which was about three times that of Lip-Glu-A-SC (contact angle 46.5°). The immobilized lipase was applied as a biocatalyst for biodiesel production. The results showed that the catalytic yield of biodiesel with highly hydrophobic Lip-Glu-C12-SC could be as high as 96%, which is about 30% higher than that of Lip-Glu-A-SC. After being recycled five times, the immobilized lipase still maintained good catalytic activity and stability. This study provides a good strategy to improve the efficiency of immobilized lipases, showing great potential for future industrial application on biodiesel production.
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3
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Ghide MK, Yan Y. 1,3-Dioleoyl-2-palmitoyl glycerol (OPO)-Enzymatic synthesis and use as an important supplement in infant formulas. J Food Biochem 2021; 45:e13799. [PMID: 34080206 DOI: 10.1111/jfbc.13799] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/30/2021] [Accepted: 05/09/2021] [Indexed: 01/09/2023]
Abstract
1,3-dioleolyl-2-palmitate (OPO) is an important component of the human milk fat. Its unique fatty acid composition and distribution play an important role in proper infant growth and development. Owing to this, it has been attracting researchers and manufacturers to synthesize and commercialize OPO as an important human milk fat substitute added to infant formulas. In this review, the role of OPO in human milk, the benefits of OPO (sn-2 palmitate)-supplemented infant formulas over the conventional infant formulas on infant growth, and lipase-catalyzed synthesis of OPO are discussed. Over the last 20 years of research on the benefits of OPO (sn2 palmitate)-supplemented infant formulas are summarized. Similarly, studies carried out on lipase catalyzed production of OPO for the last 21 years (1999-2019) are also done focusing on the raw materials, sn1,3-regiospecific lipases, immobilization materials, and solvents used in the laboratory-scale experiments. In addition, OPO-based products currently in the market and future research trends are briefly covered in this review. PRACTICAL APPLICATIONS: This work focuses on lipase-catalyzed synthesis of 1,3-dioleoyl-2-palmitoylglycerol (the most abundant triacyl glycerol in human milk fat) and its benefits to infants when it is added in infant formulas. Over the last 20 years of published research from the literature are summarized and future research trends for efficient OPO synthesis are also covered. This will provide current and future researchers on the field with the necessary background information on OPO synthesis and design their research plans accordingly for cost-effective production of OPO and OPO-supplemented infant formulas.
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Affiliation(s)
- Michael Kidane Ghide
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Yunjun Yan
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
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Different strategies for the lipase immobilization on the chitosan based supports and their applications. Int J Biol Macromol 2021; 179:170-195. [PMID: 33667561 DOI: 10.1016/j.ijbiomac.2021.02.198] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 01/15/2023]
Abstract
Immobilized enzymes have received incredible interests in industry, pharmaceuticals, chemistry and biochemistry sectors due to their various advantages such as ease of separation, multiple reusability, non-toxicity, biocompatibility, high activity and resistant to environmental changes. This review in between various immobilized enzymes focuses on lipase as one of the most practical enzyme and chitosan as a preferred biosupport for lipase immobilization and provides a broad range of studies of recent decade. We highlight several aspects of lipase immobilization on the surface of chitosan support containing various types of lipase and immobilization techniques from physical adsorption to covalent bonding and cross-linking with their benefits and drawbacks. The recent advances and future perspectives that can improve the present problems with lipase and chitosan such as high-price of lipase and low mechanical resistance of chitosan are also discussed. According to the literature, optimization of immobilization methods, combination of these methods with other techniques, physical and chemical modifications of chitosan, co-immobilization and protein engineering can be useful as a solution to overcome the mentioned limitations.
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Efficient improvement of surface displayed lipase from Rhizomucor miehei in PichiaPink™ protease-deficient system. Protein Expr Purif 2020; 180:105804. [PMID: 33276128 DOI: 10.1016/j.pep.2020.105804] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 10/25/2020] [Accepted: 11/29/2020] [Indexed: 11/23/2022]
Abstract
Lipase from Rhizomucor miehei (RML) is a promising biocatalyst used in food industry, fine chemicals, and biodiesel production. Yeast surface display allows direct application of lipase in form of whole-cell biocatalyst, avoiding purification and immobilization process, but the protease of the host cell may affect the activity of displayed lipase. Herein, we used the protease-deficient Pichia pastoris, PichiaPink™ as host to display RML efficiently. RML gene, GCW21 gene and α-factor gene were co-cloned into plasmid pPink LC/HC and transformed into protease-deficient P. pastoris. After inducution expression for 96 h, the lipase activity of displayed RML reached 121.72 U/g in proteinase-A-deficient P. pastoris harboring high-copy plasmid, which exhibited 46.7% higher than recombinant P. pastoris without protease defect. Displayed RML occurred the maximum activity at pH 8.0 and 45 °C and the optimal substrate was p-nitrophenyl octanoate. Metal ions Li+, Na+, K+, and Mg2+ of 1-10 mM had activation towards displayed RML. Displayed RML was effectively improved in PichiaPink™ protease-deficient system, which may promote the further research and development for the industrial application of RML.
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Wahab RA, Elias N, Abdullah F, Ghoshal SK. On the taught new tricks of enzymes immobilization: An all-inclusive overview. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104613] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Recent Trends in Biomaterials for Immobilization of Lipases for Application in Non-Conventional Media. Catalysts 2020. [DOI: 10.3390/catal10060697] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The utilization of biomaterials as novel carrier materials for lipase immobilization has been investigated by many research groups over recent years. Biomaterials such as agarose, starch, chitin, chitosan, cellulose, and their derivatives have been extensively studied since they are non-toxic materials, can be obtained from a wide range of sources and are easy to modify, due to the high variety of functional groups on their surfaces. However, although many lipases have been immobilized on biomaterials and have shown potential for application in biocatalysis, special features are required when the biocatalyst is used in non-conventional media, for example, in organic solvents, which are required for most reactions in organic synthesis. In this article, we discuss the use of biomaterials for lipase immobilization, highlighting recent developments in the synthesis and functionalization of biomaterials using different methods. Examples of effective strategies designed to result in improved activity and stability and drawbacks of the different immobilization protocols are discussed. Furthermore, the versatility of different biocatalysts for the production of compounds of interest in organic synthesis is also described.
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Jin WB, Xu Y, Yu XW. Improved catalytic performance of lipase under non-aqueous conditions by entrapment into alkyl-functionalized mesoporous silica. NEW J CHEM 2019. [DOI: 10.1039/c8nj04312d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Immobilizing lipase r27RCL into octadecyl-functionalized mesoporous silica materials significantly improved the activity and enantioselectivity of the lipase.
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Affiliation(s)
- Wen-Bin Jin
- The Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi 214122
| | - Yan Xu
- The Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi 214122
| | - Xiao-Wei Yu
- The Key Laboratory of Industrial Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi 214122
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9
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Bioaffinity immobilization and characterization of α-galactosidase on aminophenylboronicacid derivatized chitosan and Sepabeads EC-EA. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.12.073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Urrutia P, Arrieta R, Alvarez L, Cardenas C, Mesa M, Wilson L. Immobilization of lipases in hydrophobic chitosan for selective hydrolysis of fish oil: The impact of support functionalization on lipase activity, selectivity and stability. Int J Biol Macromol 2018; 108:674-686. [DOI: 10.1016/j.ijbiomac.2017.12.062] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 12/06/2017] [Accepted: 12/10/2017] [Indexed: 02/03/2023]
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11
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Rizwan M, Yahya R, Hassan A, Yar M, Anita Omar R, Azari P, Danial Azzahari A, Selvanathan V, Rageh Al-Maleki A, Venkatraman G. Synthesis of a novel organosoluble, biocompatible, and antibacterial chitosan derivative for biomedical applications. J Appl Polym Sci 2017. [DOI: 10.1002/app.45905] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Muhammad Rizwan
- Department of Chemistry; Universiti Malaya; 50603 Kuala Lumpur Malaysia
| | - Rosiyah Yahya
- Department of Chemistry; Universiti Malaya; 50603 Kuala Lumpur Malaysia
| | - Aziz Hassan
- Department of Chemistry; Universiti Malaya; 50603 Kuala Lumpur Malaysia
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology; 54000 Lahore Pakistan
| | - Ros Anita Omar
- Department of Restorative Dentistry, Faculty of Dentistry; Universiti Malaya; 50603 Kuala Lumpur Malaysia
| | - Pedram Azari
- Department of Biomedical Engineering, Faculty of Engineering; University of Malaya; 50603 Kuala Lumpur Malaysia
| | | | | | - Anis Rageh Al-Maleki
- Department of Medical Microbiology, Faculty of Medicine; Universiti Malaya; 50603 Kuala Lumpur Malaysia
| | - Gopinath Venkatraman
- Department of Medical Microbiology, Faculty of Medicine; Universiti Malaya; 50603 Kuala Lumpur Malaysia
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12
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Zhao G, Lang X, Wang F, Li J, Li X. A one-pot method for lipase-catalyzed synthesis of chitosan palmitate in mixed lonic liquids and its characterization. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.05.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Feng P, Du P, Wan C, Shi Y, Wan Q. Proton Conducting Graphene Oxide/Chitosan Composite Electrolytes as Gate Dielectrics for New-Concept Devices. Sci Rep 2016; 6:34065. [PMID: 27688042 PMCID: PMC5043185 DOI: 10.1038/srep34065] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 09/02/2016] [Indexed: 12/12/2022] Open
Abstract
New-concept devices featuring the characteristics of ultralow operation voltages and low fabrication cost have received increasing attention recently because they can supplement traditional Si-based electronics. Also, organic/inorganic composite systems can offer an attractive strategy to combine the merits of organic and inorganic materials into promising electronic devices. In this report, solution-processed graphene oxide/chitosan composite film was found to be an excellent proton conducting electrolyte with a high specific capacitance of ~3.2 μF/cm2 at 1.0 Hz, and it was used to fabricate multi-gate electric double layer transistors. Dual-gate AND logic operation and two-terminal diode operation were realized in a single device. A two-terminal synaptic device was proposed, and some important synaptic behaviors were emulated, which is interesting for neuromorphic systems.
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Affiliation(s)
- Ping Feng
- School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.,Key Laboratory of Microelectronic Devices &Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China.,School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Peifu Du
- School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.,School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Changjin Wan
- School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.,School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Yi Shi
- School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.,School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Qing Wan
- School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.,Key Laboratory of Microelectronic Devices &Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China.,School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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14
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Yagar H, Balkan U. Entrapment of laurel lipase in chitosan hydrogel beads. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:864-870. [DOI: 10.1080/21691401.2016.1182920] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Hulya Yagar
- Department of Chemistry, Faculty of Science, Trakya University, Edirne, Turkey
| | - Ugur Balkan
- Department of Chemistry, Faculty of Science, Trakya University, Edirne, Turkey
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15
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Poppe JK, Fernandez-Lafuente R, Rodrigues RC, Ayub MAZ. Enzymatic reactors for biodiesel synthesis: Present status and future prospects. Biotechnol Adv 2015; 33:511-25. [PMID: 25687275 DOI: 10.1016/j.biotechadv.2015.01.011] [Citation(s) in RCA: 124] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 01/28/2015] [Accepted: 01/29/2015] [Indexed: 12/16/2022]
Abstract
Lipases are being extensively researched for the production of biodiesel as a "silver bullet" in order to avoid the drawbacks of the traditional alkaline transesterification. In this review, we analyzed the main factors involved in the enzymatic synthesis of biodiesel, focusing in the choice of the immobilization protocol, and the parameters involved in the choice and configuration of the reactors. An extensive discussion is presented about the advantages and disadvantages of each type of reactor and their mode of operation. The current scenario of the market for enzymatic biodiesel and some future prospects and necessary developments are also briefly presented.
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Affiliation(s)
- Jakeline Kathiele Poppe
- Biotechnology, Bioprocess, and Biocatalysis Group, Food Science and Technology Institute, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, PO Box 15090, ZC 91501-970 Porto Alegre, RS, Brazil
| | | | - Rafael C Rodrigues
- Biotechnology, Bioprocess, and Biocatalysis Group, Food Science and Technology Institute, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, PO Box 15090, ZC 91501-970 Porto Alegre, RS, Brazil.
| | - Marco Antônio Záchia Ayub
- Biotechnology, Bioprocess, and Biocatalysis Group, Food Science and Technology Institute, Federal University of Rio Grande do Sul, Av. Bento Gonçalves 9500, PO Box 15090, ZC 91501-970 Porto Alegre, RS, Brazil.
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Quilles J, Brito R, Borges J, Aragon C, Fernandez-Lorente G, Bocchini-Martins D, Gomes E, da Silva R, Boscolo M, Guisan J. Modulation of the activity and selectivity of the immobilized lipases by surfactants and solvents. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2014.10.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Kinetics modeling of the acidolysis with immobilized Rhizomucor miehei lipases for production of structured lipids from sunflower oil. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Mocanu G, Nichifor M. Cationic amphiphilic dextran hydrogels with potential biomedical applications. Carbohydr Polym 2014; 99:235-41. [DOI: 10.1016/j.carbpol.2013.07.087] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 07/03/2013] [Accepted: 07/26/2013] [Indexed: 11/26/2022]
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19
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Urrutia P, Bernal C, Escobar S, Santa C, Mesa M, Wilson L, Illanes A. Influence of chitosan derivatization on its physicochemical characteristics and its use as enzyme support. J Appl Polym Sci 2013. [DOI: 10.1002/app.40171] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paulina Urrutia
- Escuela de Ingeniería Bioquímica; Pontificia Universidad Católica de Valparaíso; Avenida Brasil 2147 Valparaíso Chile
| | - Claudia Bernal
- Escuela de Ingeniería Bioquímica; Pontificia Universidad Católica de Valparaíso; Avenida Brasil 2147 Valparaíso Chile
- Grupo Ciencia de los Materiales; Instituto de Química; Universidad de Antioquia. Medellin; Colombia
| | - Sindy Escobar
- Grupo Ciencia de los Materiales; Instituto de Química; Universidad de Antioquia. Medellin; Colombia
| | - Cristiam Santa
- Grupo Ciencia de los Materiales; Instituto de Química; Universidad de Antioquia. Medellin; Colombia
| | - Monica Mesa
- Grupo Ciencia de los Materiales; Instituto de Química; Universidad de Antioquia. Medellin; Colombia
| | - Lorena Wilson
- Escuela de Ingeniería Bioquímica; Pontificia Universidad Católica de Valparaíso; Avenida Brasil 2147 Valparaíso Chile
| | - Andres Illanes
- Escuela de Ingeniería Bioquímica; Pontificia Universidad Católica de Valparaíso; Avenida Brasil 2147 Valparaíso Chile
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20
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Dong H, Li Y, Sheng G, Hu L. The study on effective immobilization of lipase on functionalized bentonites and their properties. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.05.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Wang SG, Jiang X, Chen PC, Yu AG, Huang XJ. Preparation of coaxial-electrospun poly[bis(p-methylphenoxy)]phosphazene nanofiber membrane for enzyme immobilization. Int J Mol Sci 2012. [PMID: 23203055 PMCID: PMC3509571 DOI: 10.3390/ijms131114136] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A core/sheath nanofiber membrane with poly[bis(p-methylphenoxy)]phosphazene (PMPPh) as the sheath and easily spinnable polyacrylonitrile (PAN) as the core was prepared via a coaxial electrospinning process. Field-emission scanning electron microscopy and transmission electron microscopy were used to characterize the morphology of the nanofiber membrane. It was found that the concentration of the PAN spinning solution and the ratio of the core/sheath solution flow rates played a decisive role in the coaxial electrospinning process. In addition, the stabilized core/sheath PMPPh nanofiber membrane was investigated as a support for enzyme immobilization because of its excellent biocompatibility, high surface/volume ratio, and large porosity. Lipase from Candida rugosa was immobilized on the nanofiber membrane by adsorption. The properties of the immobilized lipase on the polyphosphazene nanofiber membrane were studied and compared with those of a PAN nanofiber membrane. The results showed that the adsorption capacity (20.4 ± 2.7 mg/g) and activity retention (63.7%) of the immobilized lipase on the polyphosphazene nanofiber membrane were higher than those on the PAN membrane.
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Affiliation(s)
- Shu-Gen Wang
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China; E-Mails: (S.-G.W.); (X.J.)
| | - Xin Jiang
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi 214122, China; E-Mails: (S.-G.W.); (X.J.)
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; E-Mails: (P.-C.C.); (A.-G.Y.)
| | - Peng-Cheng Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; E-Mails: (P.-C.C.); (A.-G.Y.)
| | - An-Guo Yu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; E-Mails: (P.-C.C.); (A.-G.Y.)
| | - Xiao-Jun Huang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China; E-Mails: (P.-C.C.); (A.-G.Y.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-571-8795-2605; Fax: +86-571-8795-1773
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23
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Zhao G, Wang J, Li Y, Huang H, Chen X. Reversible immobilization of glucoamylase onto metal–ligand functionalized magnetic FeSBA-15. Biochem Eng J 2012. [DOI: 10.1016/j.bej.2012.04.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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24
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Palla CA, Pacheco C, Carrín ME. Production of structured lipids by acidolysis with immobilized Rhizomucor miehei lipases: Selection of suitable reaction conditions. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2011.11.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Palivan CG, Fischer-Onaca O, Delcea M, Itel F, Meier W. Protein–polymer nanoreactors for medical applications. Chem Soc Rev 2012; 41:2800-23. [DOI: 10.1039/c1cs15240h] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Effect of membranes with various hydrophobic/hydrophilic properties on lipase immobilized activity and stability. J Biosci Bioeng 2011; 113:166-72. [PMID: 22071144 DOI: 10.1016/j.jbiosc.2011.09.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 09/14/2011] [Accepted: 09/30/2011] [Indexed: 11/22/2022]
Abstract
In this study, three membranes: regenerated cellulose (RC), glass fiber (GF) and polyvinylidene fluoride (PVDF), were grafted with 1,4-diaminobutane (DA) and activated with glutaraldehyde (GA) for lipase covalent immobilization. The efficiencies of lipases immobilized on these membranes with different hydrophobic/hydrophilic properties were compared. The lipase immobilized on hydrophobic PVDF-DA-GA membrane exhibited more than an 11-fold increase in activity compared to its immobilization on a hydrophilic RC-DA-GA membrane. The relationship between surface hydrophobicity and immobilized efficiencies was investigated using hydrophobic/hydrophilic GF membranes which were prepared by grafting a different ratio of n-butylamine/1,4-diaminobutane (BA/DA). The immobilized lipase activity on the GF membrane increased with the increased BA/DA ratio. This means that lipase activity was exhibited more on the hydrophobic surface. Moreover, the modified PVDF-DA membrane was grafted with GA, epichlorohydrin (EPI) and cyanuric chloride (CC), respectively. The lipase immobilized on the PVDF-DA-EPI membrane displayed the highest specific activity compared to other membranes. This immobilized lipase exhibited more significant stability on pH, thermal, reuse, and storage than did the free enzyme. The results exhibited that the EPI modified PVDF is a promising support for lipase immobilization.
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