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Eser A, Aydemir T. Immobilization of Subtilisin Carlsberg and its use for transesterification of N-acetyl-L-phenylalanine ethyl ester in organic medium. Bioprocess Biosyst Eng 2023:10.1007/s00449-023-02887-0. [PMID: 37269356 DOI: 10.1007/s00449-023-02887-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/23/2023] [Indexed: 06/05/2023]
Abstract
In this study, inorganic-based carrier perlite (PER) and cyclodextrin-modified perlite (PER-CD) were used for Subtilisin Carlsberg (SC) immobilization. For enzyme immobilization, the supports aminated with 3-aminotriethoxysilane were first activated with glutaraldehyde (GA) and genipin (GE), and then, the immobilized enzymes (PER-SC and PER-CD-SC) were obtained. The reaction medium for SC immobilization consisted of 500 mg carrier and 5 ml (1 mg/ml) enzyme solution. The immobilization conditions were pH 8.0, 25 °C, and 2 h incubation time. Free and immobilized SC were used for transesterification of N-acetyl-L-phenylalanine ethyl ester (APEE) with 1-propanol in tetrahydrofuran (THF). The transesterification activity of the enzyme and the yield of the transesterification reaction were determined by gas chromatography (GC). 50 mg of immobilized or 2.5 mg of free SC was added to the reaction medium, which was prepared as 1 mmol APEE and 10 mmol alcohol in 10 mL of THF. The conditions for the transesterification reaction were 60 °C and 24 h of incubation. The structure and surface morphology of the prepared carriers were characterized using scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). Casein substrate was used in the optimization study. The optimum temperature and pH for SC activity were found to be 50 °C and pH 8.0, respectively, for free and immobilized SC. The thermal stability of immobilized SC was found to be greater than that of free SC. At the end of 4 h of exposure to high temperature, the immobilized enzyme maintained its activity at approximately 50%, while the free enzyme was maintained at approximately 20%. However, modification with cyclodextrin did not alter the thermal stability. The transesterification yield was found to be approximately 55% for the free enzyme, while it was found to be approximately 68% and 77% for PER-SC and PER-CD-SC, respectively. The effect of metal ions and salts on transesterification yield was examined. The results showed that the addition of metal ions decreased the percentage of transesterification by approximately 10% compared to the control group, whereas the addition of salt significantly decreased the percentage of transesterification by 60-80% compared to the control group.
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Affiliation(s)
- Ahmet Eser
- Department of Chemistry, Faculty of Arts and Sciences, Manisa Celal Bayar University, 45140, Manisa, Turkey.
| | - Tülin Aydemir
- Department of Chemistry, Faculty of Arts and Sciences, Manisa Celal Bayar University, 45140, Manisa, Turkey
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2
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Nanofibrous Formulation of Cyclodextrin Stabilized Lipases for Efficient Pancreatin Replacement Therapies. Pharmaceutics 2021; 13:pharmaceutics13070972. [PMID: 34199011 PMCID: PMC8308945 DOI: 10.3390/pharmaceutics13070972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/12/2021] [Accepted: 06/15/2021] [Indexed: 12/03/2022] Open
Abstract
Enzyme replacement therapies (ERT) have been of great help over the past 30 years in the treatment of various lysosomal storage disorders, including chronic pancreatitis and its common complication, exocrine pancreatic insufficiency. Research shows that difficulties in designing such drugs can be overcome by using appropriate additives and various enzyme immobilization techniques. Cyclodextrins (CDs) can be considered as a promising additive for enzyme replacement therapies, as they are known to enhance the activity of enzymes in a complex process due to their specific binding. In this study, we investigated the formulation of lipases (from Aspergillus oryzae and Burkholderia cepacia) paired with different cyclodextrins in poly(vinyl alcohol) (PVA) nanofibers by electrospinning technique. We examined the effect of the presence of cyclodextrins and nanoformulation on the lipase activity. The rheological and morphological characterizations of precursors and nanofibers were also performed using a viscometer as well as electron and Raman microscope. We found that by selecting the appropriate CD:lipase ratio, the activity of the investigated enzyme could be multiplied, and cyclodextrins can support the homogeneous dispersion of lipases inside the solid formula. In addition, the entrapment of lipases in PVA nanofibers led to a significant increase in activity compared to the preformulated precursor. In this way, the nanofibrous formulation of lipases combining CDs as additives can provide an efficient and sustainable possibility for designing novel solid medicines in ERT.
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3
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Anand A, Gnanasekaran P, Allgeier AM, Weatherley LR. Study and deployment of methacrylate-based polymer resins for immobilized lipase catalyzed triglyceride hydrolysis. FOOD AND BIOPRODUCTS PROCESSING 2020. [DOI: 10.1016/j.fbp.2020.06.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Tian B, Xiao D, Hei T, Ping R, Hua S, Liu J. The application and prospects of cyclodextrin inclusion complexes and polymers in the food industry: a review. POLYM INT 2020. [DOI: 10.1002/pi.5992] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Bingren Tian
- College of Chemistry and Chemical EngineeringXinjiang University Urumchi China
| | - Dong Xiao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative MedicineNanjing University of Chinese Medicine Nanjing China
| | - Tingting Hei
- School of PharmacyNingxia Medical University Yinchuan China
| | - Rui Ping
- School of Clinical MedicineNingxia Medical University Yinchuan China
| | - Shiyao Hua
- School of PharmacyNingxia Medical University Yinchuan China
| | - Jiayue Liu
- School of PharmacyNingxia Medical University Yinchuan China
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Ozyilmaz E, Etci K, Sezgin M. Candida rugosa lipase encapsulated with magnetic sporopollenin: design and enantioselective hydrolysis of racemic arylpropanoic acid esters. Prep Biochem Biotechnol 2018; 48:887-897. [DOI: 10.1080/10826068.2018.1514516] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Elif Ozyilmaz
- Faculty of Science, Department of Biochemistry, Selcuk University, Konya, Turkey
| | - Kubra Etci
- Faculty of Science, Department of Chemistry, Selcuk University, Konya, Turkey
| | - Mehmet Sezgin
- Faculty of Science, Department of Chemistry, Selcuk University, Konya, Turkey
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6
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Verma N, Upadhyay LSB. Synthesis with Glutaraldehyde and Characterization of Uniformly Coated Alkaline Phosphatase-Nanoparticle Bioconjugates. ANAL LETT 2017. [DOI: 10.1080/00032719.2016.1250770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Nishant Verma
- Department of Biotechnology, National Institute of Technology Raipur, Raipur, Chhattisgarh, India
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7
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Efficient Candida rugosa lipase immobilization on Maghnite clay and application for the production of (1R)-(−)-Menthyl acetate. CHEMICAL PAPERS 2016. [DOI: 10.1007/s11696-016-0080-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Karim Z, Khan MJ, Maskat MY, Adnan R. Immobilization of horseradish peroxidase on β-cyclodextrin-capped silver nanoparticles: Its future aspects in biosensor application. Prep Biochem Biotechnol 2016; 46:321-7. [DOI: 10.1080/10826068.2015.1031389] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Zoheb Karim
- Division of Wood Science and Nanocomposite, Department of Material Science, Lulea University of Technology, Lulea, Sweden
| | - Mohd Jahir Khan
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Mohamad Yusof Maskat
- School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Rohana Adnan
- School of Chemical Sciences, Universiti Sains Malaysia, Minden Penang, Malaysia
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9
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Wang F, Nie TT, Shao LL, Cui Z. Comparison of physical and covalent immobilization of lipase fromCandida antarcticaon polyamine microspheres of alkylamine matrix. BIOCATAL BIOTRANSFOR 2014. [DOI: 10.3109/10242422.2014.977266] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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10
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Wang J, Ji F, Xing J, Cui S, Bao Y, Hao W. Lipase Immobilization onto the Surface of PGMA-b-PDMAEMA-grafted Magnetic Nanoparticles Prepared via Atom Transfer Radical Polymerization. Chin J Chem Eng 2014. [DOI: 10.1016/j.cjche.2014.09.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Study of a new spectrophotometric end-point assay for lipase activity determination in aqueous media. Lebensm Wiss Technol 2014. [DOI: 10.1016/j.lwt.2013.10.027] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Yao B, Yang X, Guo L, Kang S, Weng W. Development of a Composite Chiral Stationary Phase from BSA and β-Cyclodextrin-Bonded Silica. J Chromatogr Sci 2014; 52:1233-8. [DOI: 10.1093/chromsci/bmt203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Junior II, Calcio Gaudino E, Martina K, Cravotto G, Luque R, de Souza ROMA. Improving the esterification activity of Pseudomonas fluorescens and Burkholderia cepacia lipases via cross-linked cyclodextrin immobilization. RSC Adv 2014. [DOI: 10.1039/c4ra03797a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Improving activities: solid cross-linked β-cyclodextrin enzymes can remarkably improve thermal stability and enzyme activity as compared to commercial immobilized enzymes in esterification reactions (e.g., monostearin synthesis).
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Affiliation(s)
- Ivaldo I. Junior
- Departamento de Química Orgânica
- Federal University of Rio de Janeiro
- Brazil
| | | | - Katia Martina
- Dipartimento di Scienza e Tecnologia del Farmaco
- University of Turin
- 10125 Torino, Italy
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco
- University of Turin
- 10125 Torino, Italy
| | - Rafael Luque
- Departamento de Química Orgánica Universidad de Córdoba
- Cordoba, Spain
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14
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Wajs E, Caldera F, Trotta F, Fragoso A. Peroxidase-encapsulated cyclodextrin nanosponge immunoconjugates as a signal enhancement tool in optical and electrochemical assays. Analyst 2014; 139:375-80. [DOI: 10.1039/c3an01643a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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15
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Tahir MN, Cho E, Mischnick P, Lee JY, Yu JH, Jung S. Pentynyl dextran as a support matrix for immobilization of serine protease subtilisin Carlsberg and its use for transesterification of N-acetyl-l-phenylalanine ethyl ester in organic media. Bioprocess Biosyst Eng 2013; 37:687-95. [PMID: 23978850 DOI: 10.1007/s00449-013-1038-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 08/13/2013] [Indexed: 10/26/2022]
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16
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da Silva CP, Franzoi AC, Fernandes SC, Dupont J, Vieira IC. Development of biosensor for phenolic compounds containing PPO in β-cyclodextrin modified support and iridium nanoparticles. Enzyme Microb Technol 2013; 52:296-301. [DOI: 10.1016/j.enzmictec.2012.12.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 11/19/2012] [Accepted: 12/02/2012] [Indexed: 12/12/2022]
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17
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Enzymatic activity studies of Pseudomonas cepacia lipase adsorbed onto copolymer supports containing β-cyclodextrin. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.10.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Immobilization studies and biochemical properties of free and immobilized Candida Rugosa lipase onto hydrophobic group carrying polymeric support. Macromol Res 2012. [DOI: 10.1007/s13233-013-1026-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Enhancement of the activity and enantioselectivity of lipase by sol-gel encapsulation immobilization onto β-cyclodextrin-based polymer. Appl Biochem Biotechnol 2012; 166:1927-40. [PMID: 22383051 DOI: 10.1007/s12010-012-9621-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 02/20/2012] [Indexed: 10/28/2022]
Abstract
Candida rugosa lipase was encapsulated within a chemically inert sol-gel support prepared by polycondensation with tetraethoxysilane and octyltriethoxysilane in the presence of β-cyclodextrin-based polymer. The catalytic activity of the encapsulated lipases was evaluated both in the hydrolysis of p-nitrophenylpalmitate and the enantioselective hydrolysis of racemic Naproxen methyl ester. It has been observed that the percent activity yield of the encapsulated lipase was 65 U/g, which is 7.5 times higher than that of the covalently immobilized lipase. The β-cyclodextrin-based encapsulated lipases had higher conversion and enantioselectivity compared with covalently immobilized lipase. The study confirms an excellent enantioselectivity (E >300) for the encapsulated lipase with an enantiomeric excess value of 98% for S-naproxen.
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20
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Kiasat AR, Nazari S. Application of β-cyclodextrin-polyurethane as a stationary microvessel and solid–liquid phase-transfer catalyst: Preparation of benzyl cyanides and azides in water. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2011.11.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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21
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Kiasat AR, Nazari S. β-Cyclodextrin based polyurethane as eco-friendly polymeric phase transfer catalyst in nucleophilic substitution reactions of benzyl halides in water: An efficient route to synthesis of benzyl thiocyanates and acetates. Catal Sci Technol 2012. [DOI: 10.1039/c2cy00375a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Sui Y, Cui Y, Nie Y, Xia GM, Sun GX, Han JT. Surface modification of magnetite nanoparticles using gluconic acid and their application in immobilized lipase. Colloids Surf B Biointerfaces 2011; 93:24-8. [PMID: 22225941 DOI: 10.1016/j.colsurfb.2011.11.054] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2011] [Revised: 11/25/2011] [Accepted: 11/27/2011] [Indexed: 10/14/2022]
Abstract
Superparamagnetic magnetite nanoparticles (SMN) were surface-modified with gluconic acid (GLA) to improve their hydrophilicity and bio-affinity. Gluconic acid was successfully coated on the surface of magnetite nanoparticles and characterized using Fourier transform infrared spectroscopy (FT-IR). With water-soluble carbodiimide (EDC) as the coupling reagent, lipase was successfully immobilized onto the hydroxyl-functionalized magnetic nanoparticles. The immobilized lipase had better resistance to temperature and pH inactivation in comparison to the free form and hence widened the reaction pH and temperature range. Thermostability and storage stability of the enzyme improved upon covalent immobilization. Immobilized lipase showed higher activity after recycling when compared to the free one and could be recovered by magnetic separation.
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Affiliation(s)
- Ying Sui
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, PR China
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23
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Stability of lipase immobilized on O-pentynyl dextran. Bioprocess Biosyst Eng 2011; 35:535-44. [DOI: 10.1007/s00449-011-0626-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Accepted: 09/08/2011] [Indexed: 11/27/2022]
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24
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Yilmaz E. Enantioselective enzymatic hydrolysis of racemic drugs by encapsulation in sol-gel magnetic sporopollenin. Bioprocess Biosyst Eng 2011; 35:493-502. [PMID: 21932062 DOI: 10.1007/s00449-011-0622-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2011] [Accepted: 09/06/2011] [Indexed: 11/26/2022]
Abstract
Candida rugosa lipase was encapsulated within a sol-gel procedure and improved considerably by fluoride-catalyzed hydrolysis of mixtures of octyltriethoxysilane and tetraethoxysilane in the presence of magnetic sporopollenin. The catalytic properties of the immobilized lipases were evaluated into model reactions, i.e., the hydrolysis of p-nitrophenylpalmitate (p-NPP), and the enantioselective hydrolysis of racemic naproxen methyl ester, mandelic acid methyl ester or 2-phenoxypropionic acid methyl ester that were studied in aqueous buffer solution/isooctane reaction system. The encapsulated magnetic sporopollenin (Spo-M-E) was found to give 319 U/g of support with 342% activity yield. It has been observed that the percent activity yields and enantioselectivity of the magnetic sporopollenin encapsulated lipase were higher than that of the encapsulated lipase without support. The substrate specificity of the encapsulated lipase revealed more efficient hydrolysis of the racemic naproxen methyl ester and 2-phenoxypropionic acid methyl ester than racemic mandelic acid methyl ester. It was observed that excellent enantioselectivity (E > 400) was obtained for encapsulated lipase with magnetic sporopollenin with an ee value of S-Naproxen and R-2 phenoxypropionic acid about 98%.
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Affiliation(s)
- Elif Yilmaz
- Department of Chemistry, Faculty of Science, Selcuk University, Konya, Turkey.
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25
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Karimpil JJ, Melo J, D'Souza S. Hen egg white as a feeder protein for lipase immobilization. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.04.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Fu G, Yue X, Dai Z. Glucose biosensor based on covalent immobilization of enzyme in sol–gel composite film combined with Prussian blue/carbon nanotubes hybrid. Biosens Bioelectron 2011; 26:3973-6. [DOI: 10.1016/j.bios.2011.03.007] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2010] [Revised: 03/05/2011] [Accepted: 03/09/2011] [Indexed: 10/18/2022]
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27
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Poly(styrene–divinylbenzene) beads surface functionalized with di-block polymer grafting and multi-modal ligand attachment: performance of reversibly immobilized lipase in ester synthesis. Bioprocess Biosyst Eng 2011; 34:735-46. [DOI: 10.1007/s00449-011-0523-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Accepted: 02/04/2011] [Indexed: 10/18/2022]
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28
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Yilmaz E, Can K, Sezgin M, Yilmaz M. Immobilization of Candida rugosa lipase on glass beads for enantioselective hydrolysis of racemic naproxen methyl ester. BIORESOURCE TECHNOLOGY 2011; 102:499-506. [PMID: 20846857 DOI: 10.1016/j.biortech.2010.08.083] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Revised: 08/22/2010] [Accepted: 08/23/2010] [Indexed: 05/29/2023]
Abstract
Candida rugosa lipase (CRL) was immobilized on glutaraldehyde-activated aminopropyl glass beads by using covalent binding method or sol-gel encapsulation procedure and improved considerably by fluoride-catalyzed hydrolysis of mixtures of RSi(OCH3)3 and Si(OCH3)4. The catalytic properties of the immobilized lipases were evaluated into model reactions, i.e. the hydrolysis of p-nitrophenylpalmitate (p-NPP). It has been observed that the percent activity yield of the encapsulated lipase was 166.9, which is 5.5 times higher than that of the covalently immobilized lipase. The enantioselective hydrolysis of racemic Naproxen methyl ester by immobilized lipase was studied in aqueous buffer solution/isooctane reaction system and it was noticed that particularly, the glass beads based encapsulated lipases had higher conversion and enantioselectivity compared to covalently immobilized lipase. In short, the study confirms an excellent enantioselectivity (E>400) for the encapsulated lipase with an ee value of 98% for S-Naproxen.
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Affiliation(s)
- Elif Yilmaz
- Department of Chemistry, Faculty of Science, Selcuk University, Konya 42075, Turkey
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29
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Enantioselective hydrolysis of rasemic naproxen methyl ester with sol–gel encapsulated lipase in the presence of sporopollenin. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2009.10.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Boscolo B, Trotta F, Ghibaudi E. High catalytic performances of Pseudomonas fluorescens lipase adsorbed on a new type of cyclodextrin-based nanosponges. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2009.10.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Yilmaz E, Sezgin M, Yilmaz M. Immobilized copper-ion affinity adsorbent based on a cross-linked β-cyclodextrin polymer for adsorption ofCandida rugosalipase. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242420903242805] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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32
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Current awareness on yeast. Yeast 2009. [DOI: 10.1002/yea.1624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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33
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Tutar H, Yilmaz E, Pehlivan E, Yilmaz M. Immobilization of Candida rugosa lipase on sporopollenin from Lycopodium clavatum. Int J Biol Macromol 2009; 45:315-20. [PMID: 19583977 DOI: 10.1016/j.ijbiomac.2009.06.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Revised: 06/27/2009] [Accepted: 06/29/2009] [Indexed: 10/20/2022]
Abstract
Sporopollenin is a natural polymer obtained from Lycopodium clavatum, which is highly stable with constant chemical structure and has high resistant capacity to chemical attack. In this study, immobilization of lipase from Candida rugosa (CRL) on sporopollenin by adsorption method is reported for the first time. Besides this, the enzyme adsorption capacity, activity and thermal stability of immobilized enzyme have also been investigated. It has been observed that under the optimum conditions (Spo-E((0.3))), the specific activity of the immobilized lipase on the sporopollenin by adsorption was 16.3U/mg protein, which is 0.46 times less than that of the free lipase (35.6U/mg protein). The pH and temperature of immobilized enzyme were optimized, which were 6.0 and 40 degrees C respectively. Kinetic parameters V(max) and K(m) were also determined for the immobilized lipase. It was observed that there is an increase of the K(m) value (7.54mM) and a decrease of the V(max) value (145.0U/mg-protein) comparing with that of the free lipase.
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Affiliation(s)
- Havva Tutar
- Department of Chemical Engineering, Selcuk University, Campus, 42031 Konya, Turkey
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