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Monteiro RRC, Berenguer-Murcia Á, Rocha-Martin J, Vieira RS, Fernandez-Lafuente R. Biocatalytic production of biolubricants: Strategies, problems and future trends. Biotechnol Adv 2023; 68:108215. [PMID: 37473819 DOI: 10.1016/j.biotechadv.2023.108215] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/13/2023] [Accepted: 07/15/2023] [Indexed: 07/22/2023]
Abstract
The increasing worries by the inadequate use of energy and the preservation of nature are promoting an increasing interest in the production of biolubricants. After discussing the necessity of producing biolubricants, this review focuses on the production of these interesting molecules through the use of lipases, discussing the different possibilities (esterification of free fatty acids, hydroesterification or transesterification of oils and fats, transesterification of biodiesel with more adequate alcohols, estolides production, modification of fatty acids). The utilization of discarded substrates has special interest due to the double positive ecological impact (e.g., oil distillated, overused oils). Pros and cons of all these possibilities, together with general considerations to optimize the different processes will be outlined. Some possibilities to overcome some of the problems detected in the production of these interesting compounds will be also discussed.
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Affiliation(s)
- Rodolpho R C Monteiro
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, 60455760 Fortaleza, Brazil
| | - Ángel Berenguer-Murcia
- Departamento de Química Inorgánica e Instituto Universitario de Materiales, Universidad de Alicante, 03080 Alicante, Spain
| | - Javier Rocha-Martin
- Departamento de Bioquímica y Biología Molecular, Facultad de Biología, Universidad Complutense de Madrid, 28040 Madrid, Spain.
| | - Rodrigo S Vieira
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, 60455760 Fortaleza, Brazil.
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2
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Bolivar JM, Woodley JM, Fernandez-Lafuente R. Is enzyme immobilization a mature discipline? Some critical considerations to capitalize on the benefits of immobilization. Chem Soc Rev 2022; 51:6251-6290. [PMID: 35838107 DOI: 10.1039/d2cs00083k] [Citation(s) in RCA: 113] [Impact Index Per Article: 56.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Enzyme immobilization has been developing since the 1960s and although many industrial biocatalytic processes use the technology to improve enzyme performance, still today we are far from full exploitation of the field. One clear reason is that many evaluate immobilization based on only a few experiments that are not always well-designed. In contrast to many other reviews on the subject, here we highlight the pitfalls of using incorrectly designed immobilization protocols and explain why in many cases sub-optimal results are obtained. We also describe solutions to overcome these challenges and come to the conclusion that recent developments in material science, bioprocess engineering and protein science continue to open new opportunities for the future. In this way, enzyme immobilization, far from being a mature discipline, remains as a subject of high interest and where intense research is still necessary to take full advantage of the possibilities.
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Affiliation(s)
- Juan M Bolivar
- FQPIMA group, Chemical and Materials Engineering Department, Faculty of Chemical Sciences, Complutense University of Madrid, Madrid, 28040, Spain
| | - John M Woodley
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark.
| | - Roberto Fernandez-Lafuente
- Departamento de Biocatálisis. ICP-CSIC, C/Marie Curie 2, Campus UAM-CSIC Cantoblanco, Madrid 28049, Spain. .,Center of Excellence in Bionanoscience Research, External Scientific Advisory Academic, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Ahrari F, Yousefi M, Habibi Z, Mohammadi M. Application of undecanedicarboxylic acid to prepare cross-linked enzymes (CLEs) of Rhizomucor miehei lipase (RML); Selective enrichment of polyunsaturated fatty acids. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112172] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Martins PA, Trobo-Maseda L, Lima FA, de Morais Júnior WG, De Marco JL, Salum TFC, Guisán JM. Omega-3 production by fish oil hydrolysis using a lipase from Burkholderia gladioli BRM58833 immobilized and stabilized by post-immobilization techniques. Biochem Biophys Rep 2022; 29:101193. [PMID: 35128079 PMCID: PMC8808055 DOI: 10.1016/j.bbrep.2021.101193] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 11/06/2022] Open
Abstract
Immobilization of lipase from Burkholderia gladioli BRM58833 on octyl sepharose (OCT) resulted in catalysts with higher activity and stability. Following, strategies were studied to further stabilize and secure the enzyme to the support using functionalized polymers, like polyethylenimine (PEI) and aldehyde-dextran (DEXa), to cover the catalyst with layers at different combinations. Alternatively, the construction of a bifunctional layer was studied using methoxypolyethylene glycol amine (NH 2 -PEG) and glycine. The catalyst OCT-PEI-DEXa was the most thermostable, with a 263.8-fold increase in stability when compared to the control condition. When evaluated under alkaline conditions, OCT-DEXa-PEG 10 /Gly was the most stable, reaching stability 70.1 times greater than the control condition. Proportionally, the stabilization obtained for B. gladioli BRM58833 lipase was superior to that obtained for the commercial B. cepacia lipase. Preliminary results in the hydrolysis of fish oil demonstrated the potential of the coating technique with bifunctional polymers, resulting in a stable catalyst with greater catalytic capacity for the production of omega-3 PUFAs. According to the results obtained, it is possible to modulate B. gladioli BRM58833 lipase properties like stability and catalytic activity for enrichment of omega-3 fatty acids.
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Affiliation(s)
- Pedro Alves Martins
- Embrapa Agroenergia, Parque Estação Biológica, PqEB s/no, W3 Norte (final), 70770-901, Brasília, DF, Brazil
- Universidade de Brasília, Campus Universitário Darcy Ribeiro, 70910-900, Brasília, DF, Brazil
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica – CSIC, C/ Marie Curie 2, Campus UAM, Cantoblanco, 28049, Madrid, Spain
| | - Lara Trobo-Maseda
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica – CSIC, C/ Marie Curie 2, Campus UAM, Cantoblanco, 28049, Madrid, Spain
| | - Frederico Alves Lima
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica – CSIC, C/ Marie Curie 2, Campus UAM, Cantoblanco, 28049, Madrid, Spain
| | - Wilson Galvão de Morais Júnior
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica – CSIC, C/ Marie Curie 2, Campus UAM, Cantoblanco, 28049, Madrid, Spain
| | - Janice Lisboa De Marco
- Universidade de Brasília, Campus Universitário Darcy Ribeiro, 70910-900, Brasília, DF, Brazil
| | - Thaís Fabiana Chan Salum
- Embrapa Agroenergia, Parque Estação Biológica, PqEB s/no, W3 Norte (final), 70770-901, Brasília, DF, Brazil
| | - José Manuel Guisán
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica – CSIC, C/ Marie Curie 2, Campus UAM, Cantoblanco, 28049, Madrid, Spain
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5
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Stabilization and operational selectivity alteration of Lipozyme 435 by its coating with polyethyleneimine: Comparison of the biocatalyst performance in the synthesis of xylose fatty esters. Int J Biol Macromol 2021; 192:665-674. [PMID: 34656534 DOI: 10.1016/j.ijbiomac.2021.10.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/09/2021] [Accepted: 10/08/2021] [Indexed: 01/13/2023]
Abstract
Differently modified Lipozyme 435 (L435) (immobilized lipase B from Candida antarctica) preparations were used as biocatalysts in the esterification reaction to synthesize sugar fatty acid esters (SFAEs) from xylose (acyl acceptor) and lauric/palmitic acids (acyl donors) in methyl ethyl ketone (MEK) solvent. The L435 treatment with polyethyleneimine (PEI) (2; 25; and 750 KDa) prevented the enzyme leakage in the crude sugar ester reaction product. The 2 KDa PEI coating of this enzyme preparation produced the highest enzyme stability in MEK, buffer solutions (pHs 5 and 7), and methanol aqueous phosphate buffer at pH 7. Using an excess of the acyl donor (1:5 xylose: fatty acid molar ratio), high xylose conversions (70-84%) were obtained after 24 h-reaction using both, non-modified and PEI (2 KDa) coated L435, but the PEI treated biocatalyst afforded a higher xylose modification degree. After 5 reuse cycles with the L435 coated with PEI 2 KDa, the xylose conversions only decreased 10%, while with the non-treated biocatalyst they decreased by 37%. The formation of SFAEs was confirmed by mass spectrometry, which showed the presence of xylose mono-, di-, and triesters. They exhibited emulsion capacities close to that of a commercial sucrose monolaurate.
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Kurtovic I, Nalder TD, Cleaver H, Marshall SN. Immobilisation of Candida rugosa lipase on a highly hydrophobic support: A stable immobilised lipase suitable for non-aqueous synthesis. ACTA ACUST UNITED AC 2020; 28:e00535. [PMID: 33088731 PMCID: PMC7566202 DOI: 10.1016/j.btre.2020.e00535] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 09/26/2020] [Accepted: 09/28/2020] [Indexed: 12/21/2022]
Abstract
Lipase from Candida rugosa (CrL) was immobilised on highly hydrophobic, octadecyl methacrylate resin (Lifetech™ ECR8806M) via interfacial adsorption. The aim was to produce a stable biocatalyst suitable for use in a range of lipid-modifying reactions. Immobilisation was carried out in 10 mM phosphate buffer (pH 6.0) over 24 h at 21 °C. High protein binding of 58.7 ± 4.9 mg/g dry support accounted for ∼53 % of the applied protein. The activity recovery against tributyrin was 74.0 ± 1.1 %. The specific activity of immobilised CrL against tributyrin was considerably higher than that of Novozym® 435, at 1.79 ± 0.05 and 1.08 ± 0.04 U/mg bound protein, respectively. Incubation with high concentrations (10 % w/v) of both Triton X-100 and SDS resulted in only a small reduction in immobilised lipase activity. Solvent-free synthesis of glycerides by the FFA-saturated immobilised CrL was successful over 6 reaction cycles, with no apparent loss of activity.
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Affiliation(s)
- Ivan Kurtovic
- Nelson Research Centre, The New Zealand Institute for Plant and Food Research Limited, 293-297 Akersten Street, Nelson, 7010, New Zealand
| | - Tim D Nalder
- Nelson Research Centre, The New Zealand Institute for Plant and Food Research Limited, 293-297 Akersten Street, Nelson, 7010, New Zealand.,School of Life and Environmental Sciences, Deakin University, 75 Pigdons Road, Waurn Ponds, 3216, Victoria, Australia
| | - Helen Cleaver
- Nelson Research Centre, The New Zealand Institute for Plant and Food Research Limited, 293-297 Akersten Street, Nelson, 7010, New Zealand
| | - Susan N Marshall
- Nelson Research Centre, The New Zealand Institute for Plant and Food Research Limited, 293-297 Akersten Street, Nelson, 7010, New Zealand
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7
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Borges JP, Quilles Junior JC, Moreno-Perez S, Fernandez-Lorente G, Boscolo M, Gomes E, da Silva R, Bocchini DA, Guisan JM. Ethyl esters production catalyzed by immobilized lipases is influenced by n-hexane and ter-amyl alcohol as organic solvents. Bioprocess Biosyst Eng 2020; 43:2107-2115. [PMID: 32594315 DOI: 10.1007/s00449-020-02399-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/23/2020] [Indexed: 12/15/2022]
Abstract
Lipase stability in organic solvent is crucial for its application in many biotechnological processes as biocatalyst. One way to improve lipase's activity and stability in unusual reaction medium is its immobilization on inert supports. Here, lipases from different sources and immobilized through weak chemical interactions on hydrophobic and ionic supports had their transesterification ability dramatically dependent on the support and also on the solvent that had been used. The ethanolysis of sardine oil was carried out at the presence of cyclohexane and tert-amyl alcohol, in which Duolite A568-Thermomyces lanuginosa lipase derivative achieved 49% of ethyl esters production after 24 h in cyclohexane. The selectivity of immobilized lipases was also studied and, after 3 h of synthesis, the reaction with Duolite A568-Thermomyces lanuginosa derivative in cyclohexane produced 24% ethyl ester of eicosapentaenoic acid and 1.2% ethyl ester of docosahexaenoic acid, displaying a selectivity index of 20 times the ethyl ester of eicosapentaenoic acid. Different derivatives of Candida antarctica lipases fraction B (CALB) and phospholipase Lecitase® Ultra (Lecitase) were also investigated. Along these lines, a combination between these factors may be applied to improve the activity and selectivity of immobilized lipases, decreasing the total cost of the process.
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Affiliation(s)
- Janaina Pires Borges
- Department of Biochemistry and Chemical Technology, IQ/UNESP - Rua Prof. Francisco Degni, 55 - CEP, Araraquara - SP, 14800-060, Brazil
| | - José Carlos Quilles Junior
- Department of Chemistry and Environmental Sciences, IBILCE/UNESP - Rua Cristóvão Colombo, 2265 - CEP, São José Do Rio Preto - SP, 15054-000, Brazil.
| | - Sônia Moreno-Perez
- Department of Biotechnology and Food Microbiology, Research Institute for Food Science, CIAL, CSIC/Campus UAM, 28049, Madrid, Spain
| | - Glória Fernandez-Lorente
- Department of Biology, IBILCE/UNESP - Rua Cristóvão Colombo, 2265 - CEP, São José Do Rio Preto - SP, 15054-000, Brazil
| | - Mauricio Boscolo
- Department of Chemistry and Environmental Sciences, IBILCE/UNESP - Rua Cristóvão Colombo, 2265 - CEP, São José Do Rio Preto - SP, 15054-000, Brazil
| | - Eleni Gomes
- Department of Biology, IBILCE/UNESP - Rua Cristóvão Colombo, 2265 - CEP, São José Do Rio Preto - SP, 15054-000, Brazil
| | - Roberto da Silva
- Department of Chemistry and Environmental Sciences, IBILCE/UNESP - Rua Cristóvão Colombo, 2265 - CEP, São José Do Rio Preto - SP, 15054-000, Brazil
| | - Daniela Alonso Bocchini
- Department of Biochemistry and Chemical Technology, IQ/UNESP - Rua Prof. Francisco Degni, 55 - CEP, Araraquara - SP, 14800-060, Brazil
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Rios NS, Morais EG, dos Santos Galvão W, Andrade Neto DM, dos Santos JCS, Bohn F, Correa MA, Fechine PBA, Fernandez-Lafuente R, Gonçalves LRB. Further stabilization of lipase from Pseudomonas fluorescens immobilized on octyl coated nanoparticles via chemical modification with bifunctional agents. Int J Biol Macromol 2019; 141:313-324. [DOI: 10.1016/j.ijbiomac.2019.09.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/26/2019] [Accepted: 09/02/2019] [Indexed: 12/27/2022]
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Rodrigues RC, Virgen-Ortíz JJ, dos Santos JC, Berenguer-Murcia Á, Alcantara AR, Barbosa O, Ortiz C, Fernandez-Lafuente R. Immobilization of lipases on hydrophobic supports: immobilization mechanism, advantages, problems, and solutions. Biotechnol Adv 2019; 37:746-770. [DOI: 10.1016/j.biotechadv.2019.04.003] [Citation(s) in RCA: 287] [Impact Index Per Article: 57.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 12/13/2022]
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Abstract
Dextran aldehyde (dexOx), resulting from the periodate oxidative cleavage of 1,2-diol moiety inside dextran, is a polymer that is very useful in many areas, including as a macromolecular carrier for drug delivery and other biomedical applications. In particular, it has been widely used for chemical engineering of enzymes, with the aim of designing better biocatalysts that possess improved catalytic properties, making them more stable and/or active for different catalytic reactions. This polymer possesses a very flexible hydrophilic structure, which becomes inert after chemical reduction; therefore, dexOx comes to be highly versatile in a biocatalyst design. This paper presents an overview of the multiple applications of dexOx in applied biocatalysis, e.g., to modulate the adsorption of biomolecules on carrier surfaces in affinity chromatography and biosensors design, to serve as a spacer arm between a ligand and the support in biomacromolecule immobilization procedures or to generate artificial microenvironments around the enzyme molecules or to stabilize multimeric enzymes by intersubunit crosslinking, among many other applications.
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Bilal M, Iqbal HMN. Naturally-derived biopolymers: Potential platforms for enzyme immobilization. Int J Biol Macromol 2019; 130:462-482. [PMID: 30825566 DOI: 10.1016/j.ijbiomac.2019.02.152] [Citation(s) in RCA: 170] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 02/17/2019] [Accepted: 02/26/2019] [Indexed: 02/08/2023]
Abstract
Naturally-derived biopolymers such as alginate, chitosan, cellulose, agarose, guar gum/guaran, agar, carrageenan, gelatin, dextran, xanthan, and pectins, etc. have appealed significant attention over the past several years owing to their natural abundance and availability all over the years, around the globe. In addition, their versatile properties such as non-toxicity, biocompatibility, biodegradability, flexibility, renewability, and the availability of numerous reactive sites offer significant functionalities with multipurpose applications. At present, intensive research efforts have been focused on engineering enzymes using natural biopolymers as novel support/composite materials for diverse applications in biomedical, environmental, pharmaceutical, food and biofuel/energy sectors. Immobilization appears as a straightforward and promising approach to developing biocatalysts with improved catalytic properties as compared to their free counterparts. Biopolymers-assisted enzymes are more stable, robust, and recoverable than that of free forms, and can be employed for continuous biocatalytic reactions. The present review highlights the recent developments and use of biopolymers and their advanced composites as support carriers for the immobilization of a variety of different enzymes to develop biocatalysts with desired catalytic activity and stability characteristics for emerging applications.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico.
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Giménez T, Mula D, Gea-Botella S, Martínez-Madrid MC, Martí N, Valero M, Saura D. Lipase catalyzed deacidification of tocopherol-rich distillates obtained from natural Vitamin E sources. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.11.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ortiz C, Ferreira ML, Barbosa O, dos Santos JCS, Rodrigues RC, Berenguer-Murcia Á, Briand LE, Fernandez-Lafuente R. Novozym 435: the “perfect” lipase immobilized biocatalyst? Catal Sci Technol 2019. [DOI: 10.1039/c9cy00415g] [Citation(s) in RCA: 263] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Novozym 435 (N435) is a commercially available immobilized lipase produced by Novozymes with its advantages and drawbacks.
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Affiliation(s)
- Claudia Ortiz
- Escuela de Microbiología
- Universidad Industrial de Santander
- Bucaramanga
- Colombia
| | - María Luján Ferreira
- Planta Piloto de Ingeniería Química – PLAPIQUI
- CONICET
- Universidad Nacional del Sur
- 8000 Bahía Blanca
- Argentina
| | - Oveimar Barbosa
- Departamento de Química
- Facultad de Ciencias
- Universidad del Tolima
- Ibagué
- Colombia
| | - José C. S. dos Santos
- Instituto de Engenharias e Desenvolvimento Sustentável
- Universidade da Integração Internacional da Lusofonia Afro-Brasileira
- Redenção
- Brazil
| | - Rafael C. Rodrigues
- Biotechnology, Bioprocess, and Biocatalysis Group, Food Science and Technology Institute
- Federal University of Rio Grande do Sul
- Porto Alegre
- Brazil
| | - Ángel Berenguer-Murcia
- Instituto Universitario de Materiales
- Departamento de Química Inorgánica
- Universidad de Alicante
- Alicante
- Spain
| | - Laura E. Briand
- Centro de Investigación y Desarrollo en Ciencias Aplicadas-Dr. Jorge J. Ronco
- Universidad Nacional de La Plata
- CONICET
- Buenos Aires
- Argentina
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Co-immobilization of lipases and β- d -galactosidase onto magnetic nanoparticle supports: Biochemical characterization. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.04.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Immobilization Effects on the Catalytic Properties of Two Fusarium Verticillioides Lipases: Stability, Hydrolysis, Transesterification and Enantioselectivity Improvement. Catalysts 2018. [DOI: 10.3390/catal8020084] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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17
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Orrego AH, Ghobadi R, Moreno-Perez S, Mendoza AJ, Fernandez-Lorente G, Guisan JM, Rocha-Martin J. Stabilization of Immobilized Lipases by Intense Intramolecular Cross-Linking of Their Surfaces by Using Aldehyde-Dextran Polymers. Int J Mol Sci 2018; 19:E553. [PMID: 29439521 PMCID: PMC5855775 DOI: 10.3390/ijms19020553] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 11/16/2022] Open
Abstract
Immobilized enzymes have a very large region that is not in contact with the support surface and this region could be the target of new stabilization strategies. The chemical amination of these regions plus further cross-linking with aldehyde-dextran polymers is proposed here as a strategy to increase the stability of immobilized enzymes. Aldehyde-dextran is not able to react with single amino groups but it reacts very rapidly with polyaminated surfaces. Three lipases-from Thermomyces lanuginosus (TLL), Rhizomucor miehiei (RML), and Candida antarctica B (CALB)-were immobilized using interfacial adsorption on the hydrophobic octyl-Sepharose support, chemically aminated, and cross-linked. Catalytic activities remained higher than 70% with regard to unmodified conjugates. The increase in the amination degree of the lipases together with the increase in the density of aldehyde groups in the dextran-aldehyde polymer promoted a higher number of cross-links. The sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) analysis of those conjugates demonstrates the major role of the intramolecular cross-linking on the stabilization of the enzymes. The highest stabilization was achieved by the modified RML immobilized on octyl-Sepharose, which was 250-fold more stable than the unmodified conjugate. The TLL and the CALB were 40-fold and 4-fold more stable than the unmodified conjugate.
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Affiliation(s)
- Alejandro H Orrego
- Department of Biocatalysis, Institute of Catalysis and Petrochemistry, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain.
| | - Rohollah Ghobadi
- Department of Biocatalysis, Institute of Catalysis and Petrochemistry, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain.
- Department of Chemistry, Kharazmi University, 1417466191 Tehran, Iran.
| | - Sonia Moreno-Perez
- Pharmacy and Biotechnology Department, School of Biomedical Sciences, Universidad Europea de Madrid, Villaviciosa de Odón, 28670 Madrid, Spain.
| | - Adriana Jaime Mendoza
- Department of Biocatalysis, Institute of Catalysis and Petrochemistry, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain.
- Departamento de Química, Universidad de Guadalajara, Guadalajara 44430, Jalisco, Mexico.
| | - Gloria Fernandez-Lorente
- Department of Biocatalysis, Institute of Catalysis and Petrochemistry, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain.
| | - Jose M Guisan
- Department of Biocatalysis, Institute of Catalysis and Petrochemistry, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain.
| | - Javier Rocha-Martin
- Department of Biocatalysis, Institute of Catalysis and Petrochemistry, Consejo Superior de Investigaciones Científicas (CSIC), 28049 Madrid, Spain.
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Zhou L, He Y, Ma L, Jiang Y, Huang Z, Yin L, Gao J. Conversion of levulinic acid into alkyl levulinates: Using lipase immobilized on meso-molding three-dimensional macroporous organosilica as catalyst. BIORESOURCE TECHNOLOGY 2018; 247:568-575. [PMID: 28982086 DOI: 10.1016/j.biortech.2017.08.134] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/19/2017] [Accepted: 08/21/2017] [Indexed: 06/07/2023]
Abstract
For conversion of biomass-derived levulinic acid into alkyl levulinates, a novel kind of lipase-based biocatalyst was prepared through immobilized lipase B from C. antarctica (CALB) on organosilica material with highly ordered 3D macroporous organosilica frameworks and a 2D hexagonal meso-structure (named 3DOM/m-OS) for the first time. The catalytic performance of the immobilized lipase (NER@3DOM/m-OS) was investigated. NER@3DOM/m-OS was used as biocatalyst to catalyze the esterification reaction between levulinic acid (LA) and n-butanol. Under optimized reaction conditions, 74.59% of ester yield was achieved after 12h of reaction. NER@3DOM/m-OS was also used to production of other alkyl levulinates, the ester yields increased to 84.51% (octyl levulinate) and 91.14% (dodecyl levulinate), respectively. When NER@3DOM/m-OS was used repeatedly in batch reactions, the ester yields of n-butyl, octyl, and dodecyl levulinate could retain 46.18%, 82.33% and 81.25% after 9 reaction cycles, respectively, which was better than commercial lipase Novozym 435 under the same condition.
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Affiliation(s)
- Liya Zhou
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Ying He
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Li Ma
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China.
| | - Zhihong Huang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Luyan Yin
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Jing Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
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19
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Godoy CA. New Strategy for the Immobilization of Lipases on Glyoxyl-Agarose Supports: Production of Robust Biocatalysts for Natural Oil Transformation. Int J Mol Sci 2017; 18:ijms18102130. [PMID: 29023423 PMCID: PMC5666812 DOI: 10.3390/ijms18102130] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/08/2017] [Accepted: 10/09/2017] [Indexed: 01/18/2023] Open
Abstract
Immobilization on Glyoxyl–agarose support (Gx) is one of the best strategies to stabilize enzymes. However, the strategy is difficult to apply at neutral pH when most enzymes are stable and, even when possible, produces labile derivatives. This work contributes to overcoming this hurdle through a strategy that combines solid-phase amination, presence of key additives, and derivative basification. To this end, aminated industrial lipases from Candida artarctica (CAL), Thermomyces lunuginosus (TLL), and the recombinant Geobacillus thermocatenulatus (BTL2) were immobilized on Gx for the first time at neutral pH using anthranilic acid (AA) or DTT as additives (immobilization yields >70%; recovered activities 37.5–76.7%). The spectroscopic evidence suggests nucleophilic catalysis and/or adsorption as the initial lipase immobilization events. Subsequent basification drastically increases the stability of BTL2–glyoxyl derivatives under harsh conditions (t1/2, from 2.1–54.5 h at 70 °C; from 10.2 h–140 h in 80% dioxane). The novel BTL2-derivatives were active and selective in fish oil hydrolysis (1.0–1.8 μmol of polyunsaturated fatty acids (PUFAs) min−1·g−1) whereas the selected TLL-derivative was as active and stable in biodiesel production (fatty ethyl esters, EE) as the commercial Novozyme®-435 after ten reaction cycles (~70% EE). Therefore, the potential of the proposed strategy in producing suitable biocatalysts for industrial processes was demonstrated.
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Affiliation(s)
- César A Godoy
- Departamento de Química (LIBB), Grupo de Investigación en Ingeniería de los Procesos Agroalimentarios y Biotecnológicos (GIPAB), Universidad del Valle, C.P. 76001 Cali, Colombia.
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20
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Souza LTDA, Moreno-Perez S, Fernández Lorente G, Cipolatti EP, de Oliveira D, Resende RR, Pessela BC. Immobilization of Moniliella spathulata R25L270 Lipase on Ionic, Hydrophobic and Covalent Supports: Functional Properties and Hydrolysis of Sardine Oil. Molecules 2017; 22:molecules22101508. [PMID: 28946698 PMCID: PMC6151709 DOI: 10.3390/molecules22101508] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 08/27/2017] [Accepted: 09/04/2017] [Indexed: 11/18/2022] Open
Abstract
The oleaginous yeast Moniliella spathulata R25L270 was the first yeast able to grow and produce extracellular lipase using Macaúba (Acrocomia aculeate) cake as substrate. The novel lipase was recently identified, and presented promising features for biotechnological applications. The M. spathulata R25L270 lipase efficiently hydrolyzed vegetable and animal oils, and showed selectivity for generating cis-5,8,11,15,17-eicosapentaenoic acid from sardine oil. The enzyme can act in a wide range of temperatures (25–48 °C) and pH (6.5–8.4). The present study deals with the immobilization of M. spathulata R25L270 lipase on hydrophobic, covalent and ionic supports to select the most active biocatalyst capable to obtain omega-3 fatty acids (PUFA) from sardine oil. Nine immobilized agarose derivatives were prepared and biochemically characterized for thermostability, pH stability and catalytic properties (KM and Vmax). Ionic supports improved the enzyme–substrate affinity; however, it was not an effective strategy to increase the M. spathulata R25L270 lipase stability against pH and temperature. Covalent support resulted in a biocatalyst with decreased activity, but high thermostability. The enzyme was most stabilized when immobilized on hydrophobic supports, especially Octyl-Sepharose. Compared with the free enzyme, the half-life of the Octyl-Sepharose derivative at 60 °C increased 10-fold, and lipase stability under acidic conditions was achieved. The Octyl-Sepharose derivative was selected to obtain omega-3 fatty acids from sardine oil, and the maximal enzyme selectivity was achieved at pH 5.0.
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Affiliation(s)
- Lívia T de A Souza
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627, Caixa Postal 486, Belo Horizonte MG 31270-901, Brazil.
| | - Sonia Moreno-Perez
- Pharmacy and Biotechnology Department, School of Biomedical Sciences, Universidad Europea, Villaviciosa de Odón, 28670 Madrid, Spain.
| | - Gloria Fernández Lorente
- Departamento de Biotecnología y Microbiología de Alimentos, Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), Campus de la Universidad Autónoma de Madrid, Nicolás Cabrera 9, 28049 Madrid, Spain.
| | - Eliane P Cipolatti
- Departamento de Engenharia Química e Engenharia de Alimentos, Universidade Federal de Santa Catarina (UFSC), P.O. Box 476, Florianópolis SC 88040-900, Brazil.
| | - Débora de Oliveira
- Departamento de Engenharia Química e Engenharia de Alimentos, Universidade Federal de Santa Catarina (UFSC), P.O. Box 476, Florianópolis SC 88040-900, Brazil.
| | - Rodrigo R Resende
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627, Caixa Postal 486, Belo Horizonte MG 31270-901, Brazil.
- Instituto Nanocell, Divinópolis MG 35500-041, Brazil.
| | - Benevides C Pessela
- Departamento de Biotecnología y Microbiología de Alimentos, Instituto de Investigación en Ciencias de la Alimentación CIAL (CSIC-UAM), Campus de la Universidad Autónoma de Madrid, Nicolás Cabrera 9, 28049 Madrid, Spain.
- Departamento de Engenharia e Tecnologías, Instituto Superior Politécnico de Tecnologías e Ciências (ISPTEC) Av. Luanda Sul, Rua Lateral Via S10, P.O. Box 1316, Talatona-Luanda Sul, Angola.
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21
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Turati DFM, Morais Júnior WG, Terrasan CRF, Moreno-Perez S, Pessela BC, Fernandez-Lorente G, Guisan JM, Carmona EC. Immobilization of Lipase from Penicillium sp. Section Gracilenta (CBMAI 1583) on Different Hydrophobic Supports: Modulation of Functional Properties. Molecules 2017; 22:molecules22020339. [PMID: 28241445 PMCID: PMC6155730 DOI: 10.3390/molecules22020339] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 02/14/2017] [Accepted: 02/14/2017] [Indexed: 11/25/2022] Open
Abstract
Lipases are promising enzymes that catalyze the hydrolysis of triacylglycerol ester bonds at the oil/water interface. Apart from allowing biocatalyst reuse, immobilization can also affect enzyme structure consequently influencing its activity, selectivity, and stability. The lipase from Penicillium sp. section Gracilenta (CBMAI 1583) was successfully immobilized on supports bearing butyl, phenyl, octyl, octadecyl, and divinylbenzyl hydrophobic moieties wherein lipases were adsorbed through the highly hydrophobic opened active site. The highest activity in aqueous medium was observed for the enzyme adsorbed on octyl support, with a 150% hyperactivation regarding the soluble enzyme activity, and the highest adsorption strength was verified with the most hydrophobic support (octadecyl Sepabeads), requiring 5% Triton X-100 to desorb the enzyme from the support. Most of the derivatives presented improved properties such as higher stability to pH, temperature, and organic solvents than the covalently immobilized CNBr derivative (prepared under very mild experimental conditions and thus a reference mimicking free-enzyme behavior). A 30.8- and 46.3-fold thermostabilization was achieved in aqueous medium, respectively, by the octyl Sepharose and Toyopearl butyl derivatives at 60 °C, in relation to the CNBr derivative. The octyl- and phenyl-agarose derivatives retained 50% activity after four and seven cycles of p-nitrophenyl palmitate hydrolysis, respectively. Different derivatives exhibited different properties regarding their properties for fish oil hydrolysis in aqueous medium and ethanolysis in anhydrous medium. The most active derivative in ethanolysis of fish oil was the enzyme adsorbed on a surface covered by divinylbenzyl moieties and it was 50-fold more active than the enzyme adsorbed on octadecyl support. Despite having identical mechanisms of immobilization, different hydrophobic supports seem to promote different shapes of the adsorbed open active site of the lipase and hence different functional properties.
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Affiliation(s)
- Daniela F M Turati
- Department of Biochemistry and Microbiology, Biosciences Institute, Universidade Estadual Paulista (UNESP), 13506-900 Rio Claro, SP, Brazil.
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, 28049 Madrid, Spain.
- Instituto de Catálisis y Petroleoquímica (ICP), CSIC-UAM, 28049 Madrid, Spain.
| | - Wilson G Morais Júnior
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, 28049 Madrid, Spain.
| | - César R F Terrasan
- Instituto de Catálisis y Petroleoquímica (ICP), CSIC-UAM, 28049 Madrid, Spain.
| | - Sonia Moreno-Perez
- Pharmacy and Biotechnology Department, School of Biomedical Sciences, Universidad Europea, 28670 Madrid, Spain.
| | - Benevides C Pessela
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, 28049 Madrid, Spain.
| | - Gloria Fernandez-Lorente
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, 28049 Madrid, Spain.
| | - Jose M Guisan
- Instituto de Catálisis y Petroleoquímica (ICP), CSIC-UAM, 28049 Madrid, Spain.
| | - Eleonora C Carmona
- Department of Biochemistry and Microbiology, Biosciences Institute, Universidade Estadual Paulista (UNESP), 13506-900 Rio Claro, SP, Brazil.
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22
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Fernandez-Lopez L, Virgen-OrtÍz JJ, Pedrero SG, Lopez-Carrobles N, Gorines BC, Otero C, Fernandez-Lafuente R. Optimization of the coating of octyl-CALB with ionic polymers to improve stability and decrease enzyme leakage. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2016.1278212] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | - Jose J. Virgen-OrtÍz
- Catedrático CONACYT – Centro de Investigación en Alimentación y Desarrollo, A.C. (CIAD) – Centro de Innovación y Desarrollo Agroalimentario de Michoacán, A.C. (CIDAM), Morelia, Michoacán, Mexico
| | - Sara G. Pedrero
- Departamento de Biocatálisis, Instituto de Catálisis-CSIC, Madrid, Spain and
| | | | - Beatriz C. Gorines
- Departamento de Biocatálisis, Instituto de Catálisis-CSIC, Madrid, Spain and
| | - Cristina Otero
- Departamento de Biocatálisis, Instituto de Catálisis-CSIC, Madrid, Spain and
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23
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Morais Júnior WG, Fernández-Lorente G, Guisán JM, Ribeiro EJ, De Resende MM, Costa Pessela B. Production of omega-3 polyunsaturated fatty acids through hydrolysis of fish oil by Candida rugosa lipase immobilized and stabilized on different supports. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2016.1268603] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Wilson Galvão Morais Júnior
- Departamento de Biotecnología y Microbiología de los Alimentos, Instituto de Investigación en Ciencias de la Alimentación, CIAL – CSIC, Calle Nicolás Cabrera 9, Madrid, Spain,
- Faculty of Chemical Engineering, Uberlândia Federal University. Av. João Naves de Ávila, Uberlândia, MG, Brazil,
| | - Gloria Fernández-Lorente
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica, CSIC, Calle Marie Curie 2, Madrid, Spain, and
| | - Jose Manuel Guisán
- Departamento de Biocatálisis, Instituto de Catálisis y Petroleoquímica, CSIC, Calle Marie Curie 2, Madrid, Spain, and
| | - Eloízio Júlio Ribeiro
- Faculty of Chemical Engineering, Uberlândia Federal University. Av. João Naves de Ávila, Uberlândia, MG, Brazil,
| | - Miriam Maria De Resende
- Faculty of Chemical Engineering, Uberlândia Federal University. Av. João Naves de Ávila, Uberlândia, MG, Brazil,
| | - Benevides Costa Pessela
- Departamento de Biotecnología y Microbiología de los Alimentos, Instituto de Investigación en Ciencias de la Alimentación, CIAL – CSIC, Calle Nicolás Cabrera 9, Madrid, Spain,
- Departamento de Engenharia e Tecnologias, Instituto Superior Politecnico de Tecnologías e Ciencias (ISPTEC). Av. Luanda Sul, Talatona, Luanda Sul, Republica de Angola
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24
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Moreno-Perez S, Turati DFM, Borges JP, Luna P, Señorans FJ, Guisan JM, Fernandez-Lorente G. Critical Role of Different Immobilized Biocatalysts of a Given Lipase in the Selective Ethanolysis of Sardine Oil. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:117-122. [PMID: 27973785 DOI: 10.1021/acs.jafc.6b05243] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Different immobilized derivatives of two lipases were tested as catalysts of the synthesis of ethyl esters of omega-3 fatty acids during the ethanolysis of sardine oil in solvent-free systems at 25 °C. Lipases from Thermomyces lanuginosus (TLL) and Lecitase Ultra (a phospholipase with lipolytic activity) were studied. Lipases were adsorbed on hydrophobic Sepabeads C18 through the open active center and on an anion-exchanger Duolite with the active center exposed to the reaction medium. TLL-Sepabeads derivatives exhibit a high activity of 9 UI/mg of immobilized enzyme, and they are 20-fold more active than TLL-Duolite derivatives and almost 1000-fold more active than Lipozyme TL IM (the commercial derivative from Novozymes). Lecitase-Sepabeads exhibit a high selectivity for the synthesis of the ethyl ester of EPA that is 43-fold faster than the synthesis of the ethyl ester of DHA.
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Affiliation(s)
| | - Daniela Flavia Machado Turati
- Department of Biochemistry and Microbiology, Univ Estadual Paulista at Rio Claro - 8 UNESP , Rio Claro, SP 13506-900, Brazil
| | - Janaina Pires Borges
- Departamento de Quı́mica e Tecnologia, Instituto de Química - UNESP , 14800-069, 10 Araraquara, SP, Brazil
| | - Pilar Luna
- Departamento de Quı́mica Fı́sica Aplicada, Universidad Autónoma , 28049 Madrid, Sapin
| | | | - Jose M Guisan
- Instituto de Catálisis, CSIC , Campus UAM-CSIC, 28049 Madrid, Spain
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25
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Gao J, Jiang Y, Lu J, Han Z, Deng J, Chen Y. Dopamine-functionalized mesoporous onion-like silica as a new matrix for immobilization of lipase Candida sp. 99-125. Sci Rep 2017; 7:40395. [PMID: 28067335 PMCID: PMC5220347 DOI: 10.1038/srep40395] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 12/06/2016] [Indexed: 02/06/2023] Open
Abstract
Dopmine functionalized mesoporous onion-like silica (DPMS) was synthesized via a biomimetic coating, and lipase Candida sp. 99-125 (LCS) was immobilized in DPMS (LCS@DPMS) by physical adsorption in this study. The DPMS was characterized by SEM, TEM, BET and FT-IR, and it was shown that the DPMS had clear multishell structures with large surface area of 419 m2/g. The activity, pH stability, thermal stability, storage stability, and reusability of the LCS@DPMS were investigated in detail. The stabilities of LCS@DPMS were improved significantly compared to the free lipase and LCS@MS (LCS immobilized in unfunctionalized mesoporous onion-like silica by physical adsorption). All the results indicated that the DPMS had high efficiency and improved stability for lipase immobilization.
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Affiliation(s)
- Junkai Gao
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Jinshu Lu
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Zhi Han
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Jiajia Deng
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Yan Chen
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
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26
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Hydrolysis and oxidation of racemic esters into prochiral ketones catalyzed by a consortium of immobilized enzymes. Biochem Eng J 2016. [DOI: 10.1016/j.bej.2016.03.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Jiang Y, Zheng P, Zhou L, Kong W, Gao J, Wang J, Gu J, Zhang X, Wang X. Immobilization of lipase in hierarchically ordered macroporous/mesoporous silica with improved catalytic performance. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.05.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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28
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Peirce S, Tacias-Pascacio VG, Russo ME, Marzocchella A, Virgen-Ortíz JJ, Fernandez-Lafuente R. Stabilization of Candida antarctica Lipase B (CALB) Immobilized on Octyl Agarose by Treatment with Polyethyleneimine (PEI). Molecules 2016; 21:molecules21060751. [PMID: 27338317 PMCID: PMC6274192 DOI: 10.3390/molecules21060751] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 06/01/2016] [Accepted: 06/06/2016] [Indexed: 01/18/2023] Open
Abstract
Lipase B from Candida antarctica (CALB) was immobilized on octyl agarose (OC) and physically modified with polyethyleneimine (PEI) in order to confer a strong ion exchange character to the enzyme and thus enable the immobilization of other enzymes on its surface. The enzyme activity was fully maintained during the coating and the thermal stability was marginally improved. The enzyme release from the support by incubation in the non-ionic detergent Triton X-100 was more difficult after the PEI-coating, suggesting that some intermolecular physical crosslinking had occurred, making this desorption more difficult. Thermal stability was marginally improved, but the stability of the OCCALB-PEI was significantly better than that of OCCALB during inactivation in mixtures of aqueous buffer and organic cosolvents. SDS-PAGE analysis of the inactivated biocatalyst showed the OCCALB released some enzyme to the medium during inactivation, and this was partially prevented by coating with PEI. This effect was obtained without preventing the possibility of reuse of the support by incubation in 2% ionic detergents. That way, this modified CALB not only has a strong anion exchange nature, while maintaining the activity, but it also shows improved stability under diverse reaction conditions without affecting the reversibility of the immobilization.
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Affiliation(s)
- Sara Peirce
- Departamento de Biocatálisis, Instituto de Catálisis-CSIC, C/Marie Curie 2, Campus UAM-CSIC Cantoblanco, 28049 Madrid, Spain.
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Universita' degli Studi di Napoli Federico II, 80125 Napoli, Italy.
| | - Veymar G Tacias-Pascacio
- Departamento de Biocatálisis, Instituto de Catálisis-CSIC, C/Marie Curie 2, Campus UAM-CSIC Cantoblanco, 28049 Madrid, Spain.
- Unidad de Investigación y Desarrollo en Alimentos, Instituto Tecnológico de Veracruz, Calzada Miguel A. de Quevedo 2779, 91897 Veracruz, Mexico.
| | - Maria Elena Russo
- Istituto di Ricerche sulla Combustione-Consiglio Nazionale delle Ricerche, 80125 Napoli, Italy.
| | - Antonio Marzocchella
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Universita' degli Studi di Napoli Federico II, 80125 Napoli, Italy.
| | - José J Virgen-Ortíz
- Departamento de Biocatálisis, Instituto de Catálisis-CSIC, C/Marie Curie 2, Campus UAM-CSIC Cantoblanco, 28049 Madrid, Spain.
| | - Roberto Fernandez-Lafuente
- Departamento de Biocatálisis, Instituto de Catálisis-CSIC, C/Marie Curie 2, Campus UAM-CSIC Cantoblanco, 28049 Madrid, Spain.
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29
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Rueda N, Albuquerque TL, Bartolome-Cabrero R, Fernandez-Lopez L, Torres R, Ortiz C, Dos Santos JCS, Barbosa O, Fernandez-Lafuente R. Reversible Immobilization of Lipases on Heterofunctional Octyl-Amino Agarose Beads Prevents Enzyme Desorption. Molecules 2016; 21:E646. [PMID: 27196882 PMCID: PMC6273131 DOI: 10.3390/molecules21050646] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 04/28/2016] [Accepted: 05/09/2016] [Indexed: 01/01/2023] Open
Abstract
Two different heterofunctional octyl-amino supports have been prepared using ethylenediamine and hexylendiamine (OCEDA and OCHDA) and utilized to immobilize five lipases (lipases A (CALA) and B (CALB) from Candida antarctica, lipases from Thermomyces lanuginosus (TLL), from Rhizomucor miehei (RML) and from Candida rugosa (CRL) and the phospholipase Lecitase Ultra (LU). Using pH 5 and 50 mM sodium acetate, the immobilizations proceeded via interfacial activation on the octyl layer, after some ionic bridges were established. These supports did not release enzyme when incubated at Triton X-100 concentrations that released all enzyme molecules from the octyl support. The octyl support produced significant enzyme hyperactivation, except for CALB. However, the activities of the immobilized enzymes were usually slightly higher using the new supports than the octyl ones. Thermal and solvent stabilities of LU and TLL were significantly improved compared to the OC counterparts, while in the other enzymes the stability decreased in most cases (depending on the pH value). As a general rule, OCEDA had lower negative effects on the stability of the immobilized enzymes than OCHDA and while in solvent inactivation the enzyme molecules remained attached to the support using the new supports and were released using monofunctional octyl supports, in thermal inactivations this only occurred in certain cases.
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Affiliation(s)
- Nazzoly Rueda
- Departamento de Biocatalisis, Instituto de Catálisis-CSIC; C/ Marie Curie 2, Campus UAM-CSIC, Madrid 28049, Spain.
- Escuela de Química, Grupo de investigación en Bioquímica y Microbiología (GIBIM), Edificio Camilo Torres 210, Universidad Industrial de Santander, Bucaramanga 680002, Colombia.
| | - Tiago L Albuquerque
- Departamento de Biocatalisis, Instituto de Catálisis-CSIC; C/ Marie Curie 2, Campus UAM-CSIC, Madrid 28049, Spain.
- Departamento de Engenharia Química, Universidade Federal Do Ceará, Campus Do Pici, CEP 60455-760 Fortaleza, Brazil.
| | - Rocio Bartolome-Cabrero
- Departamento de Biocatalisis, Instituto de Catálisis-CSIC; C/ Marie Curie 2, Campus UAM-CSIC, Madrid 28049, Spain.
| | - Laura Fernandez-Lopez
- Departamento de Biocatalisis, Instituto de Catálisis-CSIC; C/ Marie Curie 2, Campus UAM-CSIC, Madrid 28049, Spain.
| | - Rodrigo Torres
- Escuela de Química, Grupo de investigación en Bioquímica y Microbiología (GIBIM), Edificio Camilo Torres 210, Universidad Industrial de Santander, Bucaramanga 680002, Colombia.
| | - Claudia Ortiz
- Escuela de Microbiología, Universidad Industrial de Santander, Bucaramanga 680002, Colombia.
| | - Jose C S Dos Santos
- Departamento de Biocatalisis, Instituto de Catálisis-CSIC; C/ Marie Curie 2, Campus UAM-CSIC, Madrid 28049, Spain.
- Departamento de Engenharia Química, Universidade Federal Do Ceará, Campus Do Pici, CEP 60455-760 Fortaleza, Brazil.
| | - Oveimar Barbosa
- Departamento de Química, Facultad de Ciencias, Universidad del Tolima, Ibagué 546, Colombia.
| | - Roberto Fernandez-Lafuente
- Departamento de Biocatalisis, Instituto de Catálisis-CSIC; C/ Marie Curie 2, Campus UAM-CSIC, Madrid 28049, Spain.
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30
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Moreno-Pérez S, Fernández-Lorente G, Romero O, Guisán JM, López-Gallego F. Fabrication of heterogeneous biocatalyst tethering artificial prosthetic groups to obtain omega-3-fatty acids by selective hydrolysis of fish oils. RSC Adv 2016. [DOI: 10.1039/c6ra21121f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Immobilized enzymes tethering artificial prosthetic groups improve both the hydrolysis rate and the selectivity towards the eicosapentaenoic acid acyl chains.
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Affiliation(s)
- S. Moreno-Pérez
- Enzymatic Engineering Group
- Instituto de Catálisis y Petroleoquímica
- CSIC
- Madrid
- Spain
| | - G. Fernández-Lorente
- Food Microbiology and Biocatalysis Group
- Institute of Food Science Research
- CSIC
- Madrid
- Spain
| | - O. Romero
- Enzymatic Engineering Group
- Instituto de Catálisis y Petroleoquímica
- CSIC
- Madrid
- Spain
| | - J. M. Guisán
- Enzymatic Engineering Group
- Instituto de Catálisis y Petroleoquímica
- CSIC
- Madrid
- Spain
| | - F. López-Gallego
- Heterogeneus Biocatalysis Group
- CIC BiomaGUNE
- San Sebastian-Donostia
- Spain
- Ikerbasque, Basque Foundation for Science
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31
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Ashjari M, Mohammadi M, Badri R. Selective concentration of eicosapentaenoic acid and docosahexaenoic acid from fish oil with immobilized/stabilized preparations of Rhizopus oryzae lipase. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.08.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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32
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Cipolatti EP, Moreno-Pérez S, Souza LTDA, Valério A, Guisán JM, Araújo PH, Sayer C, Ninow JL, Oliveira DD, Pessela BC. Synthesis and modification of polyurethane for immobilization of Thermomyces lanuginosus (TLL) lipase for ethanolysis of fish oil in solvent free system. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.09.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Babaki M, Yousefi M, Habibi Z, Brask J, Mohammadi M. Preparation of highly reusable biocatalysts by immobilization of lipases on epoxy-functionalized silica for production of biodiesel from canola oil. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.04.020] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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34
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Barbosa O, Ortiz C, Berenguer-Murcia Á, Torres R, Rodrigues RC, Fernandez-Lafuente R. Strategies for the one-step immobilization–purification of enzymes as industrial biocatalysts. Biotechnol Adv 2015; 33:435-56. [DOI: 10.1016/j.biotechadv.2015.03.006] [Citation(s) in RCA: 481] [Impact Index Per Article: 53.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 03/03/2015] [Accepted: 03/04/2015] [Indexed: 01/06/2023]
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35
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Selective enrichment of polyunsaturated fatty acids by hydrolysis of fish oil using immobilized and stabilized Rhizomucor miehei lipase preparations. FOOD AND BIOPRODUCTS PROCESSING 2015. [DOI: 10.1016/j.fbp.2014.05.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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36
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Gao J, Feng K, Li H, Jiang Y, Zhou L. Immobilized lipase on porous ceramic monoliths for the production of sugar-derived oil gelling agent. RSC Adv 2015. [DOI: 10.1039/c5ra10570f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Lipase from Candida sp. 99-125 was immobilized on porous ceramic monoliths for the production of sugar-derived oil gelling agent.
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Affiliation(s)
- Jing Gao
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin 300130
- China
| | - Kai Feng
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin 300130
- China
| | - Hongwu Li
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin 300130
- China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin 300130
- China
| | - Liya Zhou
- School of Chemical Engineering and Technology
- Hebei University of Technology
- Tianjin 300130
- China
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37
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Potential use of avocado oil on structured lipids MLM-type production catalysed by commercial immobilised lipases. PLoS One 2014; 9:e107749. [PMID: 25248107 PMCID: PMC4172638 DOI: 10.1371/journal.pone.0107749] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 08/21/2014] [Indexed: 11/19/2022] Open
Abstract
Structured Lipids are generally constituents of functional foods. Growing demands for SL are based on a fuller understanding of nutritional requirements, lipid metabolism, and improved methods to produce them. Specifically, this work was aimed to add value to avocado oil by producing dietary triacylglycerols (TAG) containing medium-chain fatty acids (M) at positions sn-1,3 and long-chain fatty acids (L) at position sn-2. These MLM-type structured lipids (SL) were produced by interesterification of caprylic acid (CA) (C8:0) and avocado oil (content of C18:1). The regiospecific sn-1,3 commercial lipases Lipozyme RM IM and TL IM were used as biocatalysts to probe the potential of avocado oil to produce SL. Reactions were performed at 30–50°C for 24 h in solvent-free media with a substrate molar ratio of 1∶2 (TAG:CA) and 4–10% w/w enzyme content. The lowest incorporation of CA (1.1% mol) resulted from Lipozyme RM IM that was incubated at 50°C. The maximum incorporation of CA into sn-1,3 positions of TAG was 29.2% mol. This result was obtained at 30°C with 10% w/w Lipozyme TL IM, which is the highest values obtained in solvent-free medium until now for structured lipids of low-calories. This strategy opens a new market to added value products based on avocado oil.
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38
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Godoy CA, de las Rivas B, Guisán JM. Site-directing an intense multipoint covalent attachment (MCA) of mutants of the Geobacillus thermocatenulatus lipase 2 (BTL2): Genetic and chemical amination plus immobilization on a tailor-made support. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.04.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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39
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Immobilized Lipase from Candida sp. 99–125 on Hydrophobic Silicate: Characterization and Applications. Appl Biochem Biotechnol 2014; 173:1802-14. [DOI: 10.1007/s12010-014-0967-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Accepted: 05/16/2014] [Indexed: 01/29/2023]
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40
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Jiang Y, Shi L, Huang Y, Gao J, Zhang X, Zhou L. Preparation of robust biocatalyst based on cross-linked enzyme aggregates entrapped in three-dimensionally ordered macroporous silica. ACS APPLIED MATERIALS & INTERFACES 2014; 6:2622-2628. [PMID: 24484443 DOI: 10.1021/am405104b] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
With the aim to provide a highly stable and active biocatalyst, cross-linked enzyme aggregates (CLEAs) of lipase Candida sp. 99-125 were prepared in three-dimensionally ordered macroporous silica materials (CLEAs-LP@3DOM-SiO2). Lipase Candida sp. 99-125 was first precipitated in the pores of 3DOM SiO2 (named EAs-LP@3DOM-SiO2), and further cross-linked by glutaraldehyde to form CLEAs-LP@3DOM-SiO2. Saturated ammonium sulfate was used as a precipitant and glutaraldehyde with a concentration of 0.25% (w/w) was employed as a cross-linker. Compared with EAs-LP@3DOM-SiO2 and native lipase, CLEAs-LP@3DOM-SiO2 exhibited excellent thermal and mechanical stability, and could maintain more than 85% of initial activity after 16 days of shaking in organic and aqueous phase. When CLEAs-LP@3DOM-SiO2 was applied in esterification and transesterification reactions, improved activity and reusability were achieved. This method can be used for the immobilization of other enzymes of interest.
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Affiliation(s)
- Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology , 8 Guangrong Road, Hongqiao District, Tianjin China
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41
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Zhang S, Shang W, Yang X, Zhang X, Huang Y, Zhang S, Chen J. Immobilization of lipase with alginate hydrogel beads and the lipase-catalyzed kinetic resolution of α-phenyl ethanol. J Appl Polym Sci 2013. [DOI: 10.1002/app.40178] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shuang Zhang
- Department of Chemistry; Renmin University of China; Beijing 100872 People's Republic of China
| | - Wenting Shang
- Department of Chemistry; Renmin University of China; Beijing 100872 People's Republic of China
| | - Xiaoxi Yang
- Department of Chemistry; Renmin University of China; Beijing 100872 People's Republic of China
| | - Xiaogang Zhang
- Department of Chemistry; Renmin University of China; Beijing 100872 People's Republic of China
| | - Yunqian Huang
- Department of Chemistry; Renmin University of China; Beijing 100872 People's Republic of China
| | - Shujuan Zhang
- Department of Chemistry; Renmin University of China; Beijing 100872 People's Republic of China
| | - Jiawei Chen
- State Key Laboratory of Geological Processes and Mineral Resources; China University of Geosciences; Beijing 100083 People's Republic of China
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42
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Zhang S, Shang W, Yang X, Zhang S, Zhang X, Chen J. Immobilization of Lipase using Alginate Hydrogel Beads and Enzymatic Evaluation in Hydrolysis of p-Nitrophenol Butyrate. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.9.2741] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Sharma A, Chaurasia SP, Dalai AK. Non-selective hydrolysis of tuna fish oil for producing free fatty acids containing docosahexaenoic acid. CAN J CHEM ENG 2013. [DOI: 10.1002/cjce.21851] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Aditi Sharma
- Chemical Engineering Department; Banasthali University; P.O. 304022 Jaipur Rajasthan India
- Department of Chemical and Biological Engineering; College of Engineering, University of Saskatchewan; 57 Campus Drive Saskatoon SK, Canada S7N 5A9
| | - Satyendra P. Chaurasia
- Chemical Engineering Department; Malaviya National Institute of Technology; Jaipur Rajasthan 302 017 India
| | - Ajay K. Dalai
- Department of Chemical and Biological Engineering; College of Engineering, University of Saskatchewan; 57 Campus Drive Saskatoon SK, Canada S7N 5A9
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44
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Effect of Additives and Process Variables on Enzymatic Hydrolysis of Macauba Kernel Oil (Acrocomia aculeata). INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2013. [DOI: 10.1155/2013/438270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This work investigates the production of free fatty acids (FFAs) from the enzymatic hydrolysis of macauba kernel oil. Experiments evaluate the effect of different enzymes and the addition of salts, surfactants, and solvents to the reaction medium, as well as the effect of process variables. Results showed that FFA yields obtained for use of Lipozyme RM IM were higher than those obtained from Lipozyme TL IM and Lipozyme 435. The addition of salts and surfactants did not promote increased production of FFAs, while addingn-hexane and heptane to the reaction medium led to an increased reaction rate. It can be observed for the results that the temperature, water : oil mass ratio, and enzyme percentage had positive effects on the FFA yield in the range of 35°C to 55°C, 1 : 20 to 1 : 2, and 1 to 15%, respectively, and that, from these limits, increases in these variables did not cause significant increase in FFA yields. The addition of buffer promoted an increase in yield FFAs, as well as the pH of the buffer, and it was reported that an agitation of 400 rpm resulted in the highest yields in the investigated range.
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45
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46
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Gao J, Shi L, Jiang Y, Zhou L, He Y. Formation of lipase Candida sp. 99–125 CLEAs in mesoporous silica: characterization and catalytic properties. Catal Sci Technol 2013. [DOI: 10.1039/c3cy00412k] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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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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