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Santos MPF, de Souza Junior EC, Villadóniga C, Vallés D, Castro-Sowinski S, Bonomo RCF, Veloso CM. Proteases: Importance, Immobilization Protocols, Potential of Activated Carbon as Support, and the Importance of Modifying Supports for Immobilization. BIOTECH 2024; 13:13. [PMID: 38804295 PMCID: PMC11130871 DOI: 10.3390/biotech13020013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/24/2024] [Accepted: 04/26/2024] [Indexed: 05/29/2024] Open
Abstract
Although enzymes have been used for thousands of years, their application in industrial processes has gained importance since the 20th century due to technological and scientific advances in several areas, including biochemistry [...].
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Affiliation(s)
- Mateus Pereira Flores Santos
- Programa de Pós-Graduação em Biologia e Biotecnologia de Microrganismos (PPGBBM), Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16, Ilhéus 45662-900, Bahia, Brazil;
| | - Evaldo Cardozo de Souza Junior
- Laboratório de Engenharia de Processos, Universidade Estadual do Sudoeste da Bahia (UESB), BR 415, km 04, s/n, Itapetinga 45700-000, Bahia, Brazil; (E.C.d.S.J.); (C.M.V.)
| | - Carolina Villadóniga
- Laboratório de Biocatalisadores e suas Aplicações, Instituto de Química Biológica, Faculdade de Ciências, Universidade da República, Iguá 4225, Montevideo 11400, Uruguay; (C.V.); (D.V.); (S.C.-S.)
| | - Diego Vallés
- Laboratório de Biocatalisadores e suas Aplicações, Instituto de Química Biológica, Faculdade de Ciências, Universidade da República, Iguá 4225, Montevideo 11400, Uruguay; (C.V.); (D.V.); (S.C.-S.)
| | - Susana Castro-Sowinski
- Laboratório de Biocatalisadores e suas Aplicações, Instituto de Química Biológica, Faculdade de Ciências, Universidade da República, Iguá 4225, Montevideo 11400, Uruguay; (C.V.); (D.V.); (S.C.-S.)
| | - Renata Cristina Ferreira Bonomo
- Laboratório de Engenharia de Processos, Universidade Estadual do Sudoeste da Bahia (UESB), BR 415, km 04, s/n, Itapetinga 45700-000, Bahia, Brazil; (E.C.d.S.J.); (C.M.V.)
| | - Cristiane Martins Veloso
- Laboratório de Engenharia de Processos, Universidade Estadual do Sudoeste da Bahia (UESB), BR 415, km 04, s/n, Itapetinga 45700-000, Bahia, Brazil; (E.C.d.S.J.); (C.M.V.)
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2
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Galaz T, Ottone C, Rodríguez-Núñez K, Bernal C. Evaluation of the operational conditions of the glucose oxidase and catalase multienzymatic system through enzyme co-immobilization on amino hierarchical porous silica. Carbohydr Res 2024; 538:109096. [PMID: 38531187 DOI: 10.1016/j.carres.2024.109096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 03/28/2024]
Abstract
Hexaric acids have attracted attention lately because they are platform chemicals for synthesizing pharmaceuticals. In particular, gluconic acid is one of the most studied because it is readily available in nature. In this work, operational conditions like temperature and pH were evaluated for the enzymatic production of gluconic acid. For this purpose, glucose oxidase (GOx) and catalase (CAT) were individually immobilized and co-immobilized using amino-silica as support. The catalytic performance of the enzymes both as separate biocatalysts (GOx or CAT) and as an enzymatic complex (GOx-CAT) was assessed in terms of enzymatic activity and stability at temperatures 45 °C and 50 °C and pH 6 to 8. The results show that CAT is a key enzyme for gluconic acid production as it prevents GOx from being inhibited by H2O2. However, CAT was found to be less stable than GOx. Therefore, different GOx to CAT enzymatic ratios were studied, and a ratio of 1-3 was determined to be the best. The highest glucose conversion conditions were 45 °C and pH 7.0 for 24 h. Regarding the biocatalyst reuse, GOx-CAT retained more than 70% of its activity after 6 reaction cycles. These results contribute to further knowledge and application of oxidases for hexaric acid production and shed greater light on the role of the glucose oxidase/catalase pair in better catalytic performance. Both enzymes were immobilized in one pot, which is relevant for their potential use in industry; an enzyme system was obtained in a single step.
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Affiliation(s)
- Tamara Galaz
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2085, Valparaíso, Chile
| | - Carminna Ottone
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2085, Valparaíso, Chile.
| | - Karen Rodríguez-Núñez
- Laboratorio de Catálisis y Biocatálisis, Departamento de Química, Facultad de Ciencias, Universidad de La Serena, Casilla 599, Benavente 980, La Serena, 1720236, Chile
| | - Claudia Bernal
- Laboratorio de Catálisis y Biocatálisis, Departamento de Química, Facultad de Ciencias, Universidad de La Serena, Casilla 599, Benavente 980, La Serena, 1720236, Chile.
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Garg S, Behera S, Ruiz HA, Kumar S. A Review on Opportunities and Limitations of Membrane Bioreactor Configuration in Biofuel Production. Appl Biochem Biotechnol 2023; 195:5497-5540. [PMID: 35579743 DOI: 10.1007/s12010-022-03955-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 05/02/2022] [Indexed: 12/13/2022]
Abstract
Biofuels are a clean and renewable source of energy that has gained more attention in recent years; however, high energy input and processing cost during the production and recovery process restricted its progress. Membrane technology offers a range of energy-saving separation for product recovery and purification in biorefining along with biofuel production processes. Membrane separation techniques in combination with different biological processes increase cell concentration in the bioreactor, reduce product inhibition, decrease chemical consumption, reduce energy requirements, and further increase product concentration and productivity. Certain membrane bioreactors have evolved with the ability to deal with different biological production and separation processes to make them cost-effective, but there are certain limitations. The present review describes the advantages and limitations of membrane bioreactors to produce different biofuels with the ability to simplify upstream and downstream processes in terms of sustainability and economics.
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Affiliation(s)
- Shruti Garg
- Biochemical Conversion Division, Sardar Swaran Singh National Institute of Bio-Energy, Kapurthala, Punjab, 144601, India
- Department of Microbiology, Guru Nanak Dev University, Grand Trunk Road, Amritsar, Punjab, 143040, India
| | - Shuvashish Behera
- Biochemical Conversion Division, Sardar Swaran Singh National Institute of Bio-Energy, Kapurthala, Punjab, 144601, India.
- Department of Alcohol Technology and Biofuels, Vasantdada Sugar Institute, Manjari (Bk.), Pune, 412307, India.
| | - Hector A Ruiz
- Biorefinery Group, Food Research Department, School of Chemistry, Autonomous University of Coahuila, 25280, Saltillo, Coahuila, Mexico
| | - Sachin Kumar
- Biochemical Conversion Division, Sardar Swaran Singh National Institute of Bio-Energy, Kapurthala, Punjab, 144601, India.
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Rodríguez-Núñez K, López-Gallego F, Martínez R, Bernal C. Immobilized biocatalyst engineering: Biocatalytic tool to obtain attractive enzymes for industry. Int J Biol Macromol 2023; 242:125075. [PMID: 37230450 DOI: 10.1016/j.ijbiomac.2023.125075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/11/2023] [Accepted: 05/22/2023] [Indexed: 05/27/2023]
Abstract
Biocatalysis can improve current bioprocesses by identifying or improving enzymes that withstand harsh and unnatural operating conditions. Immobilized Biocatalyst Engineering (IBE) is a novel strategy integrating protein engineering and enzyme immobilization as a single workflow. Using IBE, it is possible to obtain immobilized biocatalysts whose soluble performance would not be selected. In this work, Bacillus subtilis lipase A (BSLA) variants obtained through IBE were characterized as soluble and immobilized biocatalysts, and how the interactions with the support affect their structure and catalytic performance were analyzed using intrinsic protein fluorescence. Variant P5G3 (Asn89Asp, Gln121Arg) showed a 2.6-fold increased residual activity after incubation at 76 °C compared to immobilized wild-type (wt) BSLA. On the other hand, variant P6C2 (Val149Ile) showed 4.4 times higher activity after incubation in 75 % isopropyl alcohol (36 °C) compared to Wt_BSLA. Furthermore, we studied the advancement of the IBE platform by performing synthesis and immobilizing the BSLA variants using a cell-free protein synthesis (CFPS) approach. The observed differences in immobilization performance, high temperature, and solvent resistance between the in vivo-produced variants and Wt_BSLA were confirmed for the in vitro synthesized enzymes. These results open the door for designing strategies integrating IBE and CFPS to generate and screen improved immobilized enzymes from genetic diversity libraries. Furthermore, it was confirmed that IBE is a platform that can be used to obtain improved biocatalysts, especially those with an unremarkable performance as soluble biocatalysts, which wouldn't be selected for immobilization and further development for specific applications.
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Affiliation(s)
- Karen Rodríguez-Núñez
- Laboratorio de Tecnología de Enzimas para Bioprocesos, Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán 1305, 1720010 La Serena, Chile.
| | - Fernando López-Gallego
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE) - Basque Research and Technology Alliance (BRTA) Paséo Miramón, 194, Donostia-San Sebastián 20014, Spain; KERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, Bilbao, 48013, Spain
| | - Ronny Martínez
- Laboratorio de Tecnología de Enzimas para Bioprocesos, Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán 1305, 1720010 La Serena, Chile
| | - Claudia Bernal
- Laboratorio de Tecnología de Enzimas para Bioprocesos, Departamento de Ingeniería en Alimentos, Universidad de La Serena, Av. Raúl Bitrán 1305, 1720010 La Serena, Chile; Departamento de Química, Universidad de La Serena, Benavente 980, 1720010 La Serena, Chile
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Lima PJM, da Silva RM, Neto CACG, Gomes E Silva NC, Souza JEDS, Nunes YL, Sousa Dos Santos JC. An overview on the conversion of glycerol to value-added industrial products via chemical and biochemical routes. Biotechnol Appl Biochem 2022; 69:2794-2818. [PMID: 33481298 DOI: 10.1002/bab.2098] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 12/31/2020] [Indexed: 12/27/2022]
Abstract
Glycerol is a common by-product of industrial biodiesel syntheses. Due to its properties, availability, and versatility, residual glycerol can be used as a raw material in the production of high value-added industrial inputs and outputs. In particular, products like hydrogen, propylene glycol, acrolein, epichlorohydrin, dioxalane and dioxane, glycerol carbonate, n-butanol, citric acid, ethanol, butanol, propionic acid, (mono-, di-, and triacylglycerols), cynamoil esters, glycerol acetate, benzoic acid, and other applications. In this context, the present study presents a critical evaluation of the innovative technologies based on the use of residual glycerol in different industries, including the pharmaceutical, textile, food, cosmetic, and energy sectors. Chemical and biochemical catalysts in the transformation of residual glycerol are explored, along with the factors to be considered regarding the choice of catalyst route used in the conversion process, aiming at improving the production of these industrial products.
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Affiliation(s)
- Paula Jéssyca Morais Lima
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, CE, Brazil
| | - Rhonyele Maciel da Silva
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, CE, Brazil
| | | | - Natan Câmara Gomes E Silva
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, CE, Brazil
| | - José Erick da Silva Souza
- Instituto de Engenharias e Desenvolvimento Sustentável - IEDS, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção, CE, Brazil
| | - Yale Luck Nunes
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, CE, Brazil
| | - José Cleiton Sousa Dos Santos
- Departamento de Engenharia Química, Universidade Federal do Ceará, Campus do Pici, Fortaleza, CE, Brazil.,Instituto de Engenharias e Desenvolvimento Sustentável - IEDS, Universidade da Integração Internacional da Lusofonia Afro-Brasileira, Campus das Auroras, Redenção, CE, Brazil
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Vassiliadi E, Aridas A, Schmitt V, Xenakis A, Zoumpanioti M. (Hydroxypropyl)methyl cellulose-chitosan film as a matrix for lipase immobilization: Operational and morphological study. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Al-Maqdi KA, Elmerhi N, Athamneh K, Bilal M, Alzamly A, Ashraf SS, Shah I. Challenges and Recent Advances in Enzyme-Mediated Wastewater Remediation-A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3124. [PMID: 34835887 PMCID: PMC8625148 DOI: 10.3390/nano11113124] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/11/2021] [Accepted: 11/16/2021] [Indexed: 02/07/2023]
Abstract
Different classes of artificial pollutants, collectively called emerging pollutants, are detected in various water bodies, including lakes, rivers, and seas. Multiple studies have shown the devastating effects these emerging pollutants can have on human and aquatic life. The main reason for these emerging pollutants in the aquatic environment is their incomplete removal in the existing wastewater treatment plants (WWTPs). Several additional treatments that could potentially supplement existing WWTPs to eliminate these pollutants include a range of physicochemical and biological methods. The use of enzymes, specifically, oxidoreductases, are increasingly being studied for their ability to degrade different classes of organic compounds. These enzymes have been immobilized on different supports to promote their adoption as a cost-effective and recyclable remediation approach. Unfortunately, some of these techniques have shown a negative effect on the enzyme, including denaturation and loss of catalytic activity. This review focuses on the major challenges facing researchers working on the immobilization of peroxidases and the recent progress that has been made in this area. It focuses on four major areas: (1) stability of enzymes upon immobilization, enzyme engineering, and evolution; (2) recyclability and reusability, including immobilization on membranes and solid supports; (3) cost associated with enzyme-based remediation; and (4) scaling-up and bioreactors.
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Affiliation(s)
- Khadega A. Al-Maqdi
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (K.A.A.-M.); (A.A.)
| | - Nada Elmerhi
- Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates; (N.E.); (K.A.)
| | - Khawlah Athamneh
- Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates; (N.E.); (K.A.)
| | - Muhammad Bilal
- Huaiyin Institute of Technology, School of Life Science and Food Engineering, Huaian 223003, China;
| | - Ahmed Alzamly
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (K.A.A.-M.); (A.A.)
| | - Syed Salman Ashraf
- Department of Biology, College of Arts and Sciences, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates; (N.E.); (K.A.)
- Center for Biotechnology (BTC), Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Iltaf Shah
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (K.A.A.-M.); (A.A.)
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Tacias-Pascacio VG, Morellon-Sterling R, Castañeda-Valbuena D, Berenguer-Murcia Á, Kamli MR, Tavano O, Fernandez-Lafuente R. Immobilization of papain: A review. Int J Biol Macromol 2021; 188:94-113. [PMID: 34375660 DOI: 10.1016/j.ijbiomac.2021.08.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/22/2021] [Accepted: 08/03/2021] [Indexed: 12/13/2022]
Abstract
Papain is a cysteine protease from papaya, with many applications due to its broad specificity. This paper reviews for first time the immobilization of papain on different supports (organic, inorganic or hybrid supports) presenting some of the features of the utilized immobilization strategies (e.g., epoxide, glutaraldehyde, genipin, glyoxyl for covalent immobilization). Special focus is placed on the preparation of magnetic biocatalysts, which will permit the simple recovery of the biocatalyst even if the medium is a suspension. Problems specific to the immobilization of proteases (e.g., steric problems when hydrolyzing large proteins) are also defined. The benefits of a proper immobilization (enzyme stabilization, widening of the operation window) are discussed, together with some artifacts that may suggest an enzyme stabilization that may be unrelated to enzyme rigidification.
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Affiliation(s)
- Veymar G Tacias-Pascacio
- Facultad de Ciencias de la Nutrición y Alimentos, Universidad de Ciencias y Artes de Chiapas, Lib. Norte Pte. 1150, 29039 Tuxtla Gutiérrez, Chiapas, Mexico; Tecnológico Nacional de México/Instituto Tecnológico de Tuxtla Gutiérrez, Carretera Panamericana Km. 1080, 29050 Tuxtla Gutiérrez, Chiapas, Mexico
| | - Roberto Morellon-Sterling
- Departamento de Biocatálisis. ICP-CSIC./Marie Curie 2, Campus UAM-CSIC Cantoblanco, 28049 Madrid. Spain; Student of Departamento de Biología Molecular, Universidad Autónoma de Madrid, Darwin 2, Campus UAM-CSIC, Cantoblanco, 28049 Madrid. Spain
| | - Daniel Castañeda-Valbuena
- Tecnológico Nacional de México/Instituto Tecnológico de Tuxtla Gutiérrez, Carretera Panamericana Km. 1080, 29050 Tuxtla Gutiérrez, Chiapas, Mexico
| | - Ángel Berenguer-Murcia
- Departamento de Química Inorgánica e Instituto Universitario de Materiales, Universidad de Alicante, Alicante, Spain
| | - Majid Rasool Kamli
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddad 21589, Saudi Arabia; Center of excellence in Bionanoscience Research, King Abdulaziz University, Jeddad 21589, Saudi Arabia
| | - Olga Tavano
- Faculty of Nutrition, Alfenas Federal Univ., 700 Gabriel Monteiro da Silva St, Alfenas, MG 37130-000, Brazil
| | - Roberto Fernandez-Lafuente
- Departamento de Biocatálisis. ICP-CSIC./Marie Curie 2, Campus UAM-CSIC Cantoblanco, 28049 Madrid. Spain; Center of Excellence in Bionanoscience Research, External advisory board, King Abdulaziz University, Jeddah 21589, Saudi Arabia.
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de Castro MDC, Garcia PS, Andrade MM, Grossmann MVE, Simões BM, Samulewski RB, Baron AM. Lipase immobilization on biodegradable film with sericin. Biotechnol Appl Biochem 2021; 69:660-667. [PMID: 34053116 DOI: 10.1002/bab.2141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 02/24/2021] [Indexed: 11/06/2022]
Abstract
An ecofriendly and low-cost film composed by cassava starch, polyvinyl alcohol, and sericin blend (CS-PVA-SS) was synthesized, characterized, and applied as a novel support for Botryosphaeria ribis EC-01 lipase immobilization by enzyme-film-enzyme adsorption. Film revealed thickness between 230 and 309 μm and higher flexibility and malleability in comparison with film without SS. Based on p-nitrophenyl palmitate hydrolysis reaction, the activity retention of immobilized lipase was 987%. For optimal conditions, the yield in ethyl oleate was 95% for immobilized enzyme. Maximum yield was obtained at 49°C, molar ratio oleic acid:ethanol of 1:3, 1.25 g lipase film or 50 U (1.03 ± 0.03 mg protein) and 30 h. Even after seven cycles of use, immobilized lipase showed 52% reduction in ester yield. Biodegradable and biorenewable film is a promising material as a support to immobilize lipases and application in biocatalysis.
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Affiliation(s)
- Michael da Conceição de Castro
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
| | - Patrícia Salomão Garcia
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
| | - Milena Martins Andrade
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
| | | | - Bruno Matheus Simões
- Departamento de Ciência e Tecnologia de Alimentos, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Rafael Block Samulewski
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
| | - Alessandra Machado Baron
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, PR, Brazil
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Simões BM, Grossmann MVE, Baron AM, Andrade MM, de Castro MDC, Farias TLDS, de Almeida DA, Garcia PS. Production of starch-polyester bio-support for lipases immobilization: synergistic action of itaconic acid and nanoclay. Prep Biochem Biotechnol 2020; 51:580-588. [PMID: 33135968 DOI: 10.1080/10826068.2020.1839906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The objective of the present work was to develop biodegradable polymeric films (starch-PBAT) as support for the immobilization of lipases using sodium montmorillonite (MMT) as a reinforcing agent (2% w/w) and itaconic acid (IA - 0.5-1.5% w/w) as a compatibilizing agent. The films were produced through a two steps blow-extrusion. The addition of MMT increased the tensile strength and Tg of the films, while the presence of IA made the films more flexible, reducing their Tg. Lipases from Burkholderia cepacia LTEB11 were immobilized in the films by the adsorption method. The ester yield (% of ethyl oleate synthesis) has shown best results (96%, 6 h) for immobilized enzyme in the MMT film and six cycles of reuse were carried out until a reduction of 50% in the catalytic activity of the enzyme.
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Affiliation(s)
- Bruno Matheus Simões
- Departamento de Ciência e Tecnologia de Alimentos, Universidade Estadual de Londrina, Londrina, PR, Brasil
| | | | - Alessandra Machado Baron
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, Brazil
| | - Milena Martins Andrade
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, Brazil
| | - Michael da Conceição de Castro
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, Brazil
| | - Tatiane Larissa da Silva Farias
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, Brazil
| | - Debora Aparecida de Almeida
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, Brazil
| | - Patrícia Salomão Garcia
- Universidade Tecnológica Federal do Paraná, Câmpus Apucarana - Coordenação de Licenciatura em Química (COLIQ), Apucarana, Brazil
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The fabrication of a high performance enzymatic hybrid membrane reactor (EHMR) containing immobilized Candida rugosa lipase (CRL) onto graphene oxide nanosheets-blended polyethersulfone membrane. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118435] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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13
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Gupta S, Mazumder PB, Scott D, Ashokkumar M. Ultrasound-assisted production of biodiesel using engineered methanol tolerant Proteus vulgaris lipase immobilized on functionalized polysulfone beads. ULTRASONICS SONOCHEMISTRY 2020; 68:105211. [PMID: 32521485 DOI: 10.1016/j.ultsonch.2020.105211] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/21/2020] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
In the present study, Proteus vulgaris lipase (PVL) was engineered using directed evolution to increase methanol tolerance so that it would be more tolerant and efficient for harsh conditions employed in biodiesel synthesis, which is limiting their industrial use. The influence of ultrasound under different experimental conditions on the biodiesel conversion yield using methanolysis of non-edible neem oil was also emphasized. A special attention was also paid to the immobilization of lipase on Polysulfone (PS) beads and comparative studies with industrially used Burkholderia cepacia lipase. The Engineered Proteus vulgaris lipase showed >80% activity after 3 h when incubated in 50% methanol with simultaneous sonication. The lipase retained improved longevity (~70% residual activity) over wild-type PVL over repeated use.
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Affiliation(s)
- Shweta Gupta
- Department of Biotechnology, Assam University Silchar, 788011 Assam, India
| | - P B Mazumder
- Department of Biotechnology, Assam University Silchar, 788011 Assam, India
| | - Daniel Scott
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, VIC 3010, Australia
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Ismail AR, Baek KH. Lipase immobilization with support materials, preparation techniques, and applications: Present and future aspects. Int J Biol Macromol 2020; 163:1624-1639. [DOI: 10.1016/j.ijbiomac.2020.09.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/19/2020] [Accepted: 09/03/2020] [Indexed: 12/11/2022]
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15
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Lipase immobilization on ceramic supports: An overview on techniques and materials. Biotechnol Adv 2020; 42:107581. [DOI: 10.1016/j.biotechadv.2020.107581] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 06/17/2020] [Accepted: 06/18/2020] [Indexed: 02/08/2023]
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16
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Rodríguez K, Martinez R, Bernal C. Selective immobilization of Bacillus subtilis lipase A from cell culture supernatant: Improving catalytic performance and thermal resistance. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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17
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Zheng J, Wei W, Wang S, Li X, Zhang Y, Wang Z. Immobilization of Lipozyme TL 100L for methyl esterification of soybean oil deodorizer distillate. 3 Biotech 2020; 10:51. [PMID: 32002342 DOI: 10.1007/s13205-019-2028-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 12/20/2019] [Indexed: 12/16/2022] Open
Abstract
An immobilization method for binding cross-linked enzyme aggregates of Lipozyme TL 100L on macroporous resin NKA (CLEA-TLL@NKA) was developed in this study. The esterification activity of CLEA-TLL@NKA reached 6.4 U/mg. The surface structure of immobilized lipase was characterized by scanning electron microscopy. Methyl esterification reaction of soybean oil deodorizer distillate (SODD) was catalyzed by CLEA-TLL@NKA, which the conversion rate reached 98% and its activity retained over 90% after 20 batches of reaction. Compared with the commercial enzyme Lipozyme TLIM, half-life (t 1/2) of CLEA-TLL@NKA increased by 25 times and the catalytic activity increased by approximate 10 times. Thus, CLEA-TLL@NKA had high catalytic activity, good operational stability, and potential industrial application in the field of oil processing.
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Affiliation(s)
- Jianyong Zheng
- 1Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 Zhejiang People's Republic of China
| | - Wei Wei
- 1Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 Zhejiang People's Republic of China
| | - Shengfan Wang
- Zhejiang Medicine Co., Ltd Xinchang Pharmaceutical Factory, Xinchang, 312500 Zhejiang People's Republic of China
| | - Xiaojun Li
- 3School of Medicine and Life Sciences, Xinyu University, Xinyu, 338004 Jiangxi People's Republic of China
| | - Yinjun Zhang
- 1Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 Zhejiang People's Republic of China
| | - Zhao Wang
- 1Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310014 Zhejiang People's Republic of China
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Moentamaria D, Dewajani H, Chumaidi A, Nurmahdi H, Sinduwati C. Heterogeneous biocatalyst: Polyurethane foam coating technique with co-immobilized lipase for bio-flavor production. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/1757-899x/732/1/012003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Bilal M, Rasheed T, Zhao Y, Iqbal HMN, Cui J. "Smart" chemistry and its application in peroxidase immobilization using different support materials. Int J Biol Macromol 2018; 119:278-290. [PMID: 30041033 DOI: 10.1016/j.ijbiomac.2018.07.134] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 07/18/2018] [Accepted: 07/20/2018] [Indexed: 02/08/2023]
Abstract
In the past few decades, the enzyme immobilization technology has been exploited a lot and thus became a matter of rational design. Immobilization is an alternative approach to bio-catalysis with the added benefits, adaptability to automation and high-throughput applications. Immobilization-based approaches represent simple but effective routes for engineering enzyme catalysts with higher activities than wild-type or pristine counterparts. From the chemistry viewpoint, the concept of stabilization via manipulation of functional entities, the enzyme surfaces have been an important driving force for immobilizing purposes. In addition, the unique physiochemical and structural functionalities of pristine or engineered cues, or insoluble support matrices (carrier) such as mean particle diameter, swelling behavior, mechanical strength, and compression behavior are of supreme interest and importance for the performance of the immobilized systems. Immobilization of peroxidases into/onto insoluble support matrices is advantageous for practical applications due to convenience in handling, ease separation of enzymes from a reaction mixture and the reusability. A plethora of literature is available explaining individual immobilization system. However, current literature lacks the chemistry viewpoint of immobilization. This review work presents state-of-the-art "Smart" chemistry of immobilization and novel potentialities of several materials-based cues with different geometries including microspheres, hydrogels and polymeric membranes, nanoparticles, nanofibers, composite and hybrid or blended support materials. The involvement of various functional groups including amino, thiol, carboxylic, hydroxyl, and epoxy groups via "click" chemistry, amine chemistry, thiol chemistry, carboxyl chemistry, and epoxy chemistry over the protein surfaces is discussed.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Tahir Rasheed
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuping Zhao
- 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.
| | - Jiandong Cui
- Key Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No 29, 13th, Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, China.
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A General Overview of Support Materials for Enzyme Immobilization: Characteristics, Properties, Practical Utility. Catalysts 2018. [DOI: 10.3390/catal8020092] [Citation(s) in RCA: 456] [Impact Index Per Article: 76.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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21
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Kumar D, Das T, Giri BS, Verma B. Characterization and compositional analysis of highly acidic karanja oil and its potential feedstock for enzymatic synthesis of biodiesel. NEW J CHEM 2018. [DOI: 10.1039/c8nj03084g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, we focused on the synthesis of biodiesel fromPseudomonas cepacia, crude karanja oil by the process of enzymatic transesterification using bio-support materials, such as lipase immobilized on polyvinyl alcohol/AlgNa.
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Affiliation(s)
- D. Kumar
- Department of Chemical Engineering & Technology
- IIT (BHU)
- Varanasi-221005
- India
| | - T. Das
- Department of Chemical Engineering & Technology
- IIT (BHU)
- Varanasi-221005
- India
| | - B. S. Giri
- Department of Chemical Engineering & Technology
- IIT (BHU)
- Varanasi-221005
- India
| | - B. Verma
- Department of Chemical Engineering & Technology
- IIT (BHU)
- Varanasi-221005
- India
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Gupta S, Murthy CN, Prabha CR. Recent advances in carbon nanotube based electrochemical biosensors. Int J Biol Macromol 2017; 108:687-703. [PMID: 29223757 DOI: 10.1016/j.ijbiomac.2017.12.038] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/09/2017] [Accepted: 12/06/2017] [Indexed: 12/23/2022]
Abstract
There is an increasing need for rapid, low cost, reusable, reliable and sensitive detection systems for diagnosing infectious diseases, metabolic disorders, rapidly advancing cancers and detecting the presence of environmental pollutants. Most traditional methods are invasive, slow, expensive and laborious, requiring highly specialized instruments. Introduction of biosensors with nanomaterials as transducers of signals have helped in removing the disadvantages associated with traditional detectors. The properties of high mechanical strength, better electrical conductivity and ability to serve as efficient signal transducers make carbon nanotubes (CNTs) ideal material for biosensor applications among the gamut of nanomaterials. Further, CNTs with their high surface areas, easily functionalizable surfaces for receptor immobilization are gaining importance in the construction of biosensors. The expanding field of CNTs bridges the physical sciences with biology, as chemical methods are employed to develop novel tools and platforms for understanding biological systems, in disease diagnosis and treatment. This review presents recent advances in surface functionalization of CNTs necessary for immobilization of enzymes and antibodies for biosensor applications and the methodologies used for the detection of a number of chemical and biological species. The review ends with a speculation on future prospects for CNTs in biology and medicine.
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Affiliation(s)
- S Gupta
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara-390002, India
| | - C N Murthy
- Applied Chemistry Department, Faculty of Technology and Engineering, PO Box 51, Kalabhavan, The Maharaja Sayajirao University of Baroda, Vadodara-390001, India
| | - C Ratna Prabha
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara-390002, India.
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Bhangu SK, Gupta S, Ashokkumar M. Ultrasonic enhancement of lipase-catalysed transesterification for biodiesel synthesis. ULTRASONICS SONOCHEMISTRY 2017; 34:305-309. [PMID: 27773250 DOI: 10.1016/j.ultsonch.2016.06.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 06/02/2016] [Accepted: 06/02/2016] [Indexed: 05/28/2023]
Abstract
The production of biodiesel was carried out from canola oil and methanol catalysed by lipase from Candida rugosa under different ultrasonic experimental conditions using horn (20kHz) and plate (22, 44, 98 and 300kHz) transducers. The effects of experimental conditions such as horn tip diameter, ultrasonic power, ultrasonic frequency and enzyme concentrations on biodiesel yield were investigated. The results showed that the application of ultrasound decreased the reaction time from 22-24h to 1.5h with the use of 3.5cm ultrasonic horn, an applied power of 40W, methanol to oil molar ratio of 5:1 and enzyme concentration of 0.23wt/wt% of oil. Low intensity ultrasound is efficient and a promising tool for the enzyme catalysed biodiesel synthesis as higher intensities tend to inactivate the enzyme and reduce its efficiency.
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Affiliation(s)
| | - Shweta Gupta
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara 390 002, India
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Trbojević Ivić J, Veličković D, Dimitrijević A, Bezbradica D, Dragačević V, Gavrović Jankulović M, Milosavić N. Design of biocompatible immobilized Candida rugosa lipase with potential application in food industry. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2016; 96:4281-4287. [PMID: 26801832 DOI: 10.1002/jsfa.7641] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 01/14/2016] [Accepted: 01/15/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Biocatalysts are a promising alternative for the production of natural flavor compounds. Candida rugosa lipase (CRL) is a particularly important biocatalyst owing to its remarkable efficiency in both hydrolysis and synthesis. However, additional stabilization is necessary for successful industrial implementation. This study presents an easy and time-saving method for immobilizing this valuable enzyme on hydroxyapatite (HAP), a biomaterial with high protein-binding capacity. RESULTS Targeted immobilized CRL was obtained in high yield of ≥98%. Significant lipase stabilization was observed upon immobilization: at 60 °C, immobilized lipase (HAP-CRL) retained almost unchanged activity after 3 h, while free CRL lost 50% of its initial activity after only 30 min. The same trend was observed with tested organic solvents. Methanol and hexane had the most pronounced effect: after 3 h, only HAP-CRL was stable and active, while CRL was completely inactivated. The practical value of the prepared catalyst was tested in the synthesis of the aroma ester methyl acetate in hexane. Reaction yields were 2.6 and 52.5% for CRL and HAP-CRL respectively. CONCLUSION This research has successfully combined an industrially prominent biocatalyst, CRL, and a biocompatible, environmentally suitable carrier, HAP, into an immobilized preparation with improved catalytic properties. The obtained CRL preparation has excellent potential for the food and flavor industries, major consumers in the global enzyme market. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Jovana Trbojević Ivić
- Innovation Center, Faculty of Chemistry, University of Belgrade, 11000, Belgrade, Serbia
| | - Dušan Veličković
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000, Belgrade, Serbia
| | - Aleksandra Dimitrijević
- Department of Molecular Biology and Biochemistry, University of California Irvine, Irvine, CA, 92697, USA
| | - Dejan Bezbradica
- Department of Biochemical Engineering and Biotechnology, Faculty of Technology and Metallurgy, University of Belgrade, 11000, Belgrade, Serbia
| | - Vladimir Dragačević
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000, Belgrade, Serbia
| | | | - Nenad Milosavić
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA
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Schreiber S, Thiefes A, Schuldt U, Dähne L, Scheper T, Beutel S. New application of depth filters for the immobilization of Candida antarctica lipase B. Appl Microbiol Biotechnol 2016; 101:599-607. [PMID: 27522196 DOI: 10.1007/s00253-016-7764-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 06/22/2016] [Accepted: 08/01/2016] [Indexed: 11/26/2022]
Abstract
The objective of this study was to use for the first time depth filters, which are usually intended for clarification of cell culture broth, as a direct immobilization support/matrix for industrially relevant enzymes. With this method, it is not only possible to immobilize pure enzymes; it can be also used for capturing recombinant enzymes directly out of culture supernatant. Therefore, the depth filters were coated with different anionic and cationic polymer layers by Layer-by-Layer (LbL) technology. The immobilization behavior of the model enzyme Candida antarctica lipase B (CalB) was examined. Optimal conditions for lipase immobilization were found for anionic surfaces with Poly (allylamin hydrochlorid) (PAH)/Poly (sodium-4-styrene sulfonate) (PSS) coating in 20 mM acetate buffer pH 4. Stability studies showed that immobilized CalB is 1.7-fold more stable when storage is carried out in buffer at 4 °C, compared to storage in buffer at room temperature or storage after drying at 30 °C for 24 h. The calculated half-life period is 108 days until half of the activity was lost. Furthermore, the possibility of direct capture of the CalB either from sonicated culture broth (Escherichia coli) or from cell-free supernatant was tested. Filter blocking prevented the immobilization of lipase from sonicated culture broth, but immobilization from cell-free supernatant could be performed successfully at moderate biomass content (OD600 = 7.0).
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Affiliation(s)
- Sarah Schreiber
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstr. 5, 30167, Hannover, Germany
| | - Axel Thiefes
- Sartorius Stedim Biotech GmbH, August-Spindler-Str. 11, 37079, Göttingen, Germany
| | - Ute Schuldt
- Surflay Nanotec GmbH, Max-Planck-Str. 3, 12489, Berlin, Germany
| | - Lars Dähne
- Surflay Nanotec GmbH, Max-Planck-Str. 3, 12489, Berlin, Germany
| | - Thomas Scheper
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstr. 5, 30167, Hannover, Germany
| | - Sascha Beutel
- Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University of Hannover, Callinstr. 5, 30167, Hannover, Germany.
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Ugur Nigiz F, Durmaz Hilmioglu N. A study on composite catalytic membrane manufacturing based on sodium alginate and lipase to be used in a pervaporation reactor. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2689-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Saadaoui M, Braiek M, Jaffrezic-Renault N, Raouafi N. An ultrasensitive nanobiohybrid platform for glucose electrochemical biosensing based on ferrocenyl iminopropyl-modified silica nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra03779h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel nanobiohybrid platform based on ferrocenyl iminopropyl-modified silica nanoparticle conjugates (fap-SiNPs), entrapped in glucose oxidase (GOx) and bovine serum albumin cross-linked with glutaraldehyde, was developed.
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Affiliation(s)
- M. Saadaoui
- University of Tunis El-Manar
- Faculty of Sciences
- Department de Chemistry
- Laboratory of Analytical Chemistry and Electrochemistry (LR99ES15)
- Campus universitaire de Tunis El-Manar
| | - M. Braiek
- University of Lyon
- Institute of Analytical Sciences
- 69000 Villeurbanne
- France
| | | | - N. Raouafi
- University of Tunis El-Manar
- Faculty of Sciences
- Department de Chemistry
- Laboratory of Analytical Chemistry and Electrochemistry (LR99ES15)
- Campus universitaire de Tunis El-Manar
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Gupta S, Bhatiya D, Murthy CN. Metal Removal Studies by Composite Membrane of Polysulfone and Functionalized Single-Walled Carbon Nanotubes. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2014.973516] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Parvulescu V, Popa A, Paun G, Ene R, Davidescu CM, Ilia G. Effect of polymer support functionalization on enzyme immobilization and catalytic activity. PURE APPL CHEM 2014. [DOI: 10.1515/pac-2014-0715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Two enzymes, laccase and peroxidase, were immobilized on chloromethylated styrene-divinylbenzene copolymers supports functionalized with phosphonates ((RO)2PO) or mixed ammonium and phosphonium groups (N+R3Cl–, P+Ph3Cl–). Phosphonates groups and quaternary ammonium salts were grafted on the “gel-type” copolymer by Michaelis–Becker polymer analogue reaction. Mixed polymer-supported ammonium and phosphonium salts were obtained by transquaternization of the ammonium groups to phosphonium group. The degrees of functionalization for obtained polymers were relatively high ensuring a sufficient concentration of active centers per unit mass of the copolymer. The obtained materials were characterized by thermal analysis, FTIR spectroscopy and SEM microscopy. The effects of OR1 and R2 radicals from phosphonate and respectively ammonium groups, as well as those of glutaraldehyde utilization on the immobilization yield and the catalytic properties of the supported enzymes were indicated. The activity of enzymes increased after immobilization and high immobilization yield was obtained for all the samples. The higher interaction of enzymes with support was indicated for mixed ammonium and phosphonium functions. A higher catalytic activity was obtained for peroxidase in oxidation of phenol and laccase in oxidation of anisole. The low effect of glutaraldehyde on enzyme activity reveals the strong interaction of enzyme with the polymer support, respectively with the functional groups.
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Alex D, Mathew A, Sukumaran RK. Esterases immobilized on aminosilane modified magnetic nanoparticles as a catalyst for biotransformation reactions. BIORESOURCE TECHNOLOGY 2014; 167:547-550. [PMID: 24968816 DOI: 10.1016/j.biortech.2014.05.110] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 05/28/2014] [Accepted: 05/29/2014] [Indexed: 06/03/2023]
Abstract
Magnetite nanoparticles were prepared by reacting ferrous and ferric salts in presence of aqueous ammonia. The magnetic nanoparticles (MNPs) were amino functionalized by treating with 3-aminopropyl triethoxy silane (APTES) and was coupled with glutaraldehyde. A novel solvent tolerant esterase from Pseudozyma sp. NII 08165 was immobilized on the MNPs through covalent bonding to the glutaraldehyde. The magnetite nanoparticles had a size range of 10-100 nm, confirmed by DLS. Lipases immobilized on MNPs were evaluated for biotransformation reactions including synthesis of ethyl acetate and transesterification of vegetable oil for producing biodiesel. The MNP immobilized esterase had prolonged shelf life and there was no loss in enzyme activity.
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Affiliation(s)
- Deepthy Alex
- Centre for Biofuels, Biotechnology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Industrial Estate PO, Thiruvananthapuram 695019, Kerala, India; Department of Biotechnology, Mar Ivanios College, Bethany Hills, Thiruvananthapuram 695015, Kerala, India
| | - Abraham Mathew
- Centre for Biofuels, Biotechnology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Industrial Estate PO, Thiruvananthapuram 695019, Kerala, India; Department of Botany, St. Peter's College, Kolenchery, Ernakulam, Kerala, India
| | - Rajeev K Sukumaran
- Centre for Biofuels, Biotechnology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Industrial Estate PO, Thiruvananthapuram 695019, Kerala, India.
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Synthesis of alkyl coumarate esters by celite-bound lipase of Bacillus licheniformis SCD11501. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2013.12.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Sharma S, Kanwar SS. Organic solvent tolerant lipases and applications. ScientificWorldJournal 2014; 2014:625258. [PMID: 24672342 PMCID: PMC3929378 DOI: 10.1155/2014/625258] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Accepted: 10/31/2013] [Indexed: 11/23/2022] Open
Abstract
Lipases are a group of enzymes naturally endowed with the property of performing reactions in aqueous as well as organic solvents. The esterification reactions using lipase(s) could be performed in water-restricted organic media as organic solvent(s) not only improve(s) the solubility of substrate and reactant in reaction mixture but also permit(s) the reaction in the reverse direction, and often it is easy to recover the product in organic phase in two-phase equilibrium systems. The use of organic solvent tolerant lipase in organic media has exhibited many advantages: increased activity and stability, regiospecificity and stereoselectivity, higher solubility of substrate, ease of products recovery, and ability to shift the reaction equilibrium toward synthetic direction. Therefore the search for organic solvent tolerant enzymes has been an extensive area of research. A variety of fatty acid esters are now being produced commercially using immobilized lipase in nonaqueous solvents. This review describes the organic tolerance and industrial application of lipases. The main emphasis is to study the nature of organic solvent tolerant lipases. Also, the potential industrial applications that make lipases the biocatalysts of choice for the present and future have been presented.
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Affiliation(s)
- Shivika Sharma
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Shamsher S. Kanwar
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
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