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Bassut J, Rocha ÂM, da S. França A, Leão RA, Monteiro CM, Afonso CA, de Souza RO. PEG600-carboxylates as acylating agents for the continuous enzymatic kinetic resolution of alcohols and amines. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.08.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Techniques for Preparation of Cross-Linked Enzyme Aggregates and Their Applications in Bioconversions. Catalysts 2018. [DOI: 10.3390/catal8050174] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Enzymes are biocatalysts. They are useful in environmentally friendly production processes and have high potential for industrial applications. However, because of problems with operational stability, cost, and catalytic efficiency, many enzymatic processes have limited applications. The use of cross-linked enzyme aggregates (CLEAs) has been introduced as an effective carrier-free immobilization method. This immobilization method is attractive because it is simple and robust, and unpurified enzymes can be used. Coimmobilization of different enzymes can be achieved. CLEAs generally show high catalytic activities, good storage and operational stabilities, and good reusability. In this review, we summarize techniques for the preparation of CLEAs for use as biocatalysts. Some important applications of these techniques in chemical synthesis and environmental applications are also included. CLEAs provide feasible and efficient techniques for improving the properties of immobilized enzymes for use in industrial applications.
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SÁ AGA, Meneses ACD, Araújo PHHD, Oliveira DD. A review on enzymatic synthesis of aromatic esters used as flavor ingredients for food, cosmetics and pharmaceuticals industries. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.09.004] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Roy I, Mukherjee J, Gupta MN. Cross-Linked Enzyme Aggregates for Applications in Aqueous and Nonaqueous Media. Methods Mol Biol 2017; 1504:109-123. [PMID: 27770417 DOI: 10.1007/978-1-4939-6499-4_9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Extensive cross-linking of a precipitate of a protein by a cross-linking reagent (glutaraldehyde has been most commonly used) creates an insoluble enzyme preparation called cross-linked enzyme aggregates (CLEAs). CLEAs show high stability and performance in conventional aqueous as well as nonaqueous media. These are also stable at fairly high temperatures. CLEAs with more than one kind of enzyme activity can be prepared, and such CLEAs are called combi-CLEAs or multipurpose CLEAs. Extent of cross-linking often influences their morphology, stability, activity, and enantioselectivity.
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Affiliation(s)
- Ipsita Roy
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Punjab, India
| | - Joyeeta Mukherjee
- Chemistry Department, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110 016, India
| | - Munishwar N Gupta
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110 016, India.
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Kuo CH, Liu TA, Chen JH, Chang CMJ, Shieh CJ. Response surface methodology and artificial neural network optimized synthesis of enzymatic 2-phenylethyl acetate in a solvent-free system. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2014. [DOI: 10.1016/j.bcab.2013.12.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Immobilization of Candida antarctica lipase onto cellulose acetate-coated Fe2O3 nanoparticles for glycerolysis of olive oil. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-014-0020-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kuo CH, Chen GJ, Chen CI, Liu YC, Shieh CJ. Kinetics and optimization of lipase-catalyzed synthesis of rose fragrance 2-phenylethyl acetate through transesterification. Process Biochem 2014. [DOI: 10.1016/j.procbio.2013.12.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Badgujar KC, Dhake KP, Bhanage BM. Immobilization of Candida cylindracea lipase on poly lactic acid, polyvinyl alcohol and chitosan based ternary blend film: Characterization, activity, stability and its application for N-acylation reactions. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.06.009] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Liu Y, Chen D, Yan Y. Effect of ionic liquids, organic solvents and supercritical CO2 pretreatment on the conformation and catalytic properties of Candida rugosa lipase. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.01.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yildirim D, Tükel SS. Immobilized Pseudomonas sp. lipase: A powerful biocatalyst for asymmetric acylation of (±)-2-amino-1-phenylethanols with vinyl acetate. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.04.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Evaluation of structure and hydrolysis activity of Candida rugosa Lip7 in presence of sub-/super-critical CO₂. Enzyme Microb Technol 2012; 51:354-8. [PMID: 23040391 DOI: 10.1016/j.enzmictec.2012.08.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 07/19/2012] [Accepted: 08/08/2012] [Indexed: 11/20/2022]
Abstract
This work aimed to assess the effect of sub-/super-critical CO₂ on the structure and activity of Candida rugosa Lip7 (CRL7) in its solution form. The structure was examined by SDS-PAGE gel electrophoresis, circular dichroism (CD) and fluorescence spectra photometry. Results revealed that the primary structure remained intact after sub-/super-critical CO₂ treatment, and the secondary structure altered at the pressure of 10 MPa and temperature 40°C for 30 min incubation, but it was reflex to its native form with increasing incubation time up to 150 min under 10 MPa and 40 °C. Meanwhile, the tertiary structure via fluorescence spectra analysis showed that the intensity of the maximal emission wavelength at 338 nm decreased under the conditions of 10 MPa and 40°C for 150 min. Furthermore, the residue hydrolysis activity and kinetics constants (V(max) and K(m)) of CRL7 treated with sub-/super-critical CO₂ were also investigated. In cases of 6 MPa and 35°C, or 10 MPa and 40°C for 30 min, activity variance of CRL7 was maybe caused by its secondary structure alteration. But in case of 10 MPa and 40°C for 150 min, the tertiary structure change was perhaps responsibility for CRL7 activity enhancement.
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Hormigo D, García-Hidalgo J, Acebal C, de la Mata I, Arroyo M. Preparation and characterization of cross-linked enzyme aggregates (CLEAs) of recombinant poly-3-hydroxybutyrate depolymerase from Streptomyces exfoliatus. BIORESOURCE TECHNOLOGY 2012; 115:177-182. [PMID: 21974880 DOI: 10.1016/j.biortech.2011.09.035] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 09/08/2011] [Accepted: 09/09/2011] [Indexed: 05/31/2023]
Abstract
Cross-linked enzyme aggregates of poly-3-hydroxybutyrate (PHB) depolymerase from Streptomyces exfoliatus (PhaZ(Sex)-CLEAs) have been prepared. Acetone was used as the precipitating agent, while addition of bovine serum albumin (BSA) facilitated CLEAs formation. Conditions for enzyme precipitation and cross-linking have been optimized, and confocal scanning microscopy showed a homogeneous enzyme distribution in the biocatalyst. Obtained PhaZ(Sex)-CLEAs presented an average size of 50-300 μm, showing a high PHB depolymerase activity of 255 U/g wet biocatalyst at 40°C and pH 7.0. Temperature-activity profile of PhaZ(Sex)-CLEAs at pH 8.0 showed that the highest activity for pNPB hydrolysis was achieved at 60°C, whereas pH-activity profile at 40°C indicated that highest activity for PHB hydrolysis was achieved at pH 7.0. Additionally, immobilized biocatalyst could be recycled at least for 20 consecutive batch reactions without loss of catalytic activity, and showed higher pH and temperature stability, and better tolerance to several organic solvents than its soluble counterpart.
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Affiliation(s)
- Daniel Hormigo
- Departamento de Biología Medioambiental, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
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Geng B, Wang M, Qi W, Su R, He Z. Cinnamyl acetate synthesis by lipase-catalyzed transesterification in a solvent-free system. Biotechnol Appl Biochem 2012; 59:270-5. [DOI: 10.1002/bab.1023] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 05/16/2012] [Indexed: 11/06/2022]
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Kuo CH, Chen GJ, Twu YK, Liu YC, Shieh CJ. Optimum Lipase Immobilized on Diamine-Grafted PVDF Membrane and Its Characterization. Ind Eng Chem Res 2012. [DOI: 10.1021/ie300011q] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Yawo-Kuo Twu
- Department of
Bioindustry Technology, Da-Yeh University, 168 University Road, Chang-Hwa,
515, Taiwan
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Dhake KP, Deshmukh KM, Patil YP, Singhal RS, Bhanage BM. Improved activity and stability of Rhizopus oryzae lipase via immobilization for citronellol ester synthesis in supercritical carbon dioxide. J Biotechnol 2011; 156:46-51. [DOI: 10.1016/j.jbiotec.2011.08.019] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2011] [Revised: 08/01/2011] [Accepted: 08/11/2011] [Indexed: 11/16/2022]
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Dhake KP, Tambade PJ, Qureshi ZS, Singhal RS, Bhanage BM. HPMC-PVA Film Immobilized Rhizopus oryzae Lipase as a Biocatalyst for Transesterification Reaction. ACS Catal 2011. [DOI: 10.1021/cs100162t] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kishor P. Dhake
- Department of Chemistry and ‡Department of Food Engineering and Technology, Institute of Chemical Technology (Autonomous), Matunga, Mumbai 400 019, India
| | - Pawan J. Tambade
- Department of Chemistry and ‡Department of Food Engineering and Technology, Institute of Chemical Technology (Autonomous), Matunga, Mumbai 400 019, India
| | - Ziyauddin S. Qureshi
- Department of Chemistry and ‡Department of Food Engineering and Technology, Institute of Chemical Technology (Autonomous), Matunga, Mumbai 400 019, India
| | - Rekha S. Singhal
- Department of Chemistry and ‡Department of Food Engineering and Technology, Institute of Chemical Technology (Autonomous), Matunga, Mumbai 400 019, India
| | - Bhalchandra M. Bhanage
- Department of Chemistry and ‡Department of Food Engineering and Technology, Institute of Chemical Technology (Autonomous), Matunga, Mumbai 400 019, India
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Franken B, Eggert T, Jaeger KE, Pohl M. Mechanism of acetaldehyde-induced deactivation of microbial lipases. BMC BIOCHEMISTRY 2011; 12:10. [PMID: 21342514 PMCID: PMC3049140 DOI: 10.1186/1471-2091-12-10] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Accepted: 02/22/2011] [Indexed: 11/23/2022]
Abstract
Background Microbial lipases represent the most important class of biocatalysts used for a wealth of applications in organic synthesis. An often applied reaction is the lipase-catalyzed transesterification of vinyl esters and alcohols resulting in the formation of acetaldehyde which is known to deactivate microbial lipases, presumably by structural changes caused by initial Schiff-base formation at solvent accessible lysine residues. Previous studies showed that several lipases were sensitive toward acetaldehyde deactivation whereas others were insensitive; however, a general explanation of the acetaldehyde-induced inactivation mechanism is missing. Results Based on five microbial lipases from Candida rugosa, Rhizopus oryzae, Pseudomonas fluorescens and Bacillus subtilis we demonstrate that the protonation state of lysine ε-amino groups is decisive for their sensitivity toward acetaldehyde. Analysis of the diverse modification products of Bacillus subtilis lipases in the presence of acetaldehyde revealed several stable products such as α,β-unsaturated polyenals, which result from base and/or amino acid catalyzed aldol condensation of acetaldehyde. Our studies indicate that these products induce the formation of stable Michael-adducts at solvent-accessible amino acids and thus lead to enzyme deactivation. Further, our results indicate Schiff-base formation with acetaldehyde to be involved in crosslinking of lipase molecules. Conclusions Differences in stability observed with various commercially available microbial lipases most probably result from different purification procedures carried out by the respective manufacturers. We observed that the pH of the buffer used prior to lyophilization of the enzyme sample is of utmost importance. The mechanism of acetaldehyde-induced deactivation of microbial lipases involves the generation of α,β-unsaturated polyenals from acetaldehyde which subsequently form stable Michael-adducts with the enzymes. Lyophilization of the enzymes from buffer at pH 6.0 can provide an easy and effective way to stabilize lipases toward inactivation by acetaldehyde.
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Affiliation(s)
- Benjamin Franken
- Institute of Molecular Enzyme Technology, Heinrich-Heine University Düsseldorf, Forschungszentrum Jülich GmbH, D-52426 Jülich, Germany
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Solanki K, Gupta M. Simultaneous purification and immobilization of Candida rugosa lipase on superparamagnetic Fe3O4 nanoparticles for catalyzing transesterification reactions. NEW J CHEM 2011. [DOI: 10.1039/c1nj20277d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Current awareness on yeast. Yeast 2010. [DOI: 10.1002/yea.1719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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