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Rajashekarappa KK, Basavarajappa A, Neelagund SE, Mahadevan GD, Achur RN, Kumar P. Propitious catalytic response of immobilized α-amylase from G. thermoleovorans in modified APTES-Fe 3O 4 NPs for industrial bio-processing. Int J Biol Macromol 2024; 269:132021. [PMID: 38697441 DOI: 10.1016/j.ijbiomac.2024.132021] [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: 01/24/2024] [Revised: 04/27/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Challenges in enzyme and product recovery are currently intriguing in modern biotechnology. Coping enzyme stability, shelf life and efficiency, nanomaterials-based immobilization were epitomized of industrial practice. Herein, a α-amylase from Geobacillus thermoleovorans was purified and bound effectively on to a modified 3-Aminopropyltriethoxysilane (APTES)-Fe3O4 nanoparticle. It was revealed that the carrier-bound enzyme catalysis (pH 8 and 60 °C) was significant in contrast to the free enzyme (pH 7.5 and 55 °C). Furthermore, Zn2+ and Cu2+ were shown to cause inhibitory effects in both enzyme states. Unlike chloroform, toluene, benzene, and butanol, minimal effects were observed with ethanol, acetone, and hexane. The bound enzyme retained 27.4 % of its initial activity after being stored for 36 days. In addition, the reusability of the bound enzyme showed a gradual decline in activity after the first cycle; however, after 13 cycles, its residual activity at 53 % was observed. These data proved significant enough to use this enzyme for industrial starch and analogous substrate bio-processing.
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Affiliation(s)
| | - Avinash Basavarajappa
- Department of Biochemistry, Jnana Sahyadri, Kuvempu University, Shankaraghatta, Shivamogga-577451, India
| | | | - Gurumurthy Dummi Mahadevan
- Center for Cellular and Molecular Biotechnology, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida-201301, India.
| | - Rajeshwara Nagappa Achur
- Department of Biochemistry, Jnana Sahyadri, Kuvempu University, Shankaraghatta, Shivamogga-577451, India
| | - Prabhanshu Kumar
- Centre for Biotechnology and Biochemical Engineering, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida-201301, India
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Adetunji AI, Olaniran AO. Biocatalytic Profiling of Free and Immobilized Partially Purified Alkaline Protease from an Autochthonous Bacillus aryabhattai Ab15-ES. REACTIONS 2023. [DOI: 10.3390/reactions4020013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Partially purified alkaline protease produced by an indigenous bacterial strain, Bacillus aryabhattai Ab15-ES, was insolubilized in alginate beads using an entrapment technique. Maximum entrapped enzyme activities of 68.76% and 71.06% were recorded at optimum conditions of 2% (w/v) sodium alginate and 0.3 M calcium chloride. Biochemical profiling of free and immobilized proteases was investigated by determining their activity and stability as well as kinetic properties. Both enzyme preparations exhibited maximum activity at the optimum pH and temperature of 8.0 and 50 °C, respectively. However, in comparison to the free enzyme, the immobilized protease showed improved pH stability at 8.0–9.0 and thermal stability at 40–50 °C. In addition, the entrapped protease exhibited a higher Vmax and increased affinity to the substrate (1.65-fold) than the soluble enzyme. The immobilized protease was found to be more stable than the free enzyme, retaining 80.88% and 38.37% of its initial activity when stored at 4 °C and 25 °C, respectively, for 30 d. After repeated use seven times, the protease entrapped in alginate beads maintained 32.93% of its original activity. These findings suggest the efficacy and sustainability of the developed immobilized catalytic system for various biotechnological applications.
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Affiliation(s)
- Adegoke Isiaka Adetunji
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
- Department of Biological Sciences, Summit University, Offa 250101, Nigeria
- Centre for Mineral Biogeochemistry, University of the Free State, Bloemfontein 9031, South Africa
| | - Ademola Olufolahan Olaniran
- Discipline of Microbiology, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville Campus, Private Bag X54001, Durban 4000, South Africa
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He L, Qian W, Cen L, Shen S, Wang S, Chen S, Liu S, Liu A, Yang Y, Liu Y. Catalase-conjugated collagen surfaces and their application for the quantification determination of H2O2 in milk. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Cibacron blue F3GA incorporated immobilized metal chelate affinity sorbent as a high efficient affinity immobilization materials for catalase enzyme. Colloids Surf B Biointerfaces 2021; 206:111911. [PMID: 34147926 DOI: 10.1016/j.colsurfb.2021.111911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 05/31/2021] [Accepted: 06/06/2021] [Indexed: 11/21/2022]
Abstract
Catalase is a metalloenzyme commonly found in almost all plant and animal tissues and catalyzes the conversion of hydrogen peroxide to less reactive molecules. It is used for the elimination of hydrogen peroxide in biological, biomedical, food and textile applications. For this purpose, a novel affinity sorbent [poly(methacrylic acid- N-isopropyl acrylamide-CB-Fe3+, (p(MAA-NIPAAM)-CB-Fe3+)] for the determination and it was first developed using MAA and NIPAAM monomers. After characterization with Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), X-ray Photoelectron Spectroscopy (XPS), adsorption parameters were determined. Reusability of p(MAA-NIPAAM)-CB-Fe3+ sorbent was determined after by determining the appropriate desorption agent for desorption of adsorbed catalase in the developed sorbent. It was determined that catalase adsorption could be performed with 0.01 g of sorbent in 45 min. The maximum adsorption capacity for catalase adsorption was determined as 243.17 mg/g with the use of sorbent. The operational and storage stability of the immobilized catalase was found to be high as expected. The conversion of H2O2 can be successfully performed by the immobilized enzyme in the prepared sorbent. It has been proven that the affinity of catalase for its substrate is increased by immobilization.
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Verma NK, Raghav N. Comparative study of covalent and hydrophobic interactions for α-amylase immobilization on cellulose derivatives. Int J Biol Macromol 2021; 174:134-143. [PMID: 33428958 DOI: 10.1016/j.ijbiomac.2021.01.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/27/2020] [Accepted: 01/06/2021] [Indexed: 11/29/2022]
Abstract
Indispensability of enzymes in living systems, their unique characteristics and simultaneous focus on development of greener methods have led to substitution of various chemical reactions by enzyme catalyzed reactions. One of the aspects in enzyme research is immobilization of enzymes. Immobilization provides a platform for reusability of significant enzymes. Varieties of methods have been explored for enzyme immobilization such as entrapment, adsorption, ionic interactions etc. Keeping in view the industrial utility of α-Amylase in leather, paper and other industries related to starch hydrolysis, we immobilized α-Amylase on cellulose isolated from banana peel. In present study, two different methods of immobilization - covalent bonding (Cellulose Dialdehyde as a support) and hydrophobic interactions (Nano Cellulose- Cetyl Trimethyl Ammonium Bromide) were used. Cellulose obtained from bio-waste has been characterized using Fourier transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD). In this comparative study, Cellulose Dialdehyde (CDA) immobilized enzyme depicts high reusability, good enzyme loading, storage capacity up to 49 days, optimum pH 6, optimum temperature 95 °C, good pH and thermal stability as compared to native enzyme having optimum pH and temperature of 7 and 37 °C. On the contrary, nanocellulose - Cetyl Trimethyl Ammonium Bromide (NC-CTAB) matrix shows good enzyme loading and optimum pH shift of about 3 units but poor recyclability. Outcome of this study presents the promising nature of covalent mode of immobilization for industrial use.
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Affiliation(s)
- Nitin Kumar Verma
- Chemistry Department, Kurukshetra University, Kurukshetra 136119, Haryana, India
| | - Neera Raghav
- Chemistry Department, Kurukshetra University, Kurukshetra 136119, Haryana, India.
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Mardani T, Khiabani MS, Mokarram RR, Hamishehkar H. Immobilization of α-amylase on chitosan-montmorillonite nanocomposite beads. Int J Biol Macromol 2018; 120:354-360. [DOI: 10.1016/j.ijbiomac.2018.08.065] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 08/11/2018] [Accepted: 08/13/2018] [Indexed: 11/16/2022]
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7
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Astafyeva BV, Shapovalova OE, Drozdov AS, Vinogradov VV. α-Amylase@Ferria: Magnetic Nanocomposites with Enhanced Thermal Stability for Starch Hydrolysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8054-8060. [PMID: 29976057 DOI: 10.1021/acs.jafc.8b01298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The present study is devoted to the development of a new class recyclable magnetic catalytic nanocomposites for starch hydrolysis. α-Amylase was entrapped within a magnetite-derived xerogel matrix in a course of a room-temperature sol-gel transition, leading to enzyme immobilization within the pores of a rigid magnetic matrix. For hybrid organo-inorganic composites with enzyme mass fractions less than 10 wt %, no enzyme leaching was observed. At 80 °C, the amylase@ferria composite demonstrates catalytic activity on the level of 10 units/mg and the starch hydrolysis rate comparable to free enzyme, while at 90 °C, the activity of amylase@ferria is at least twice higher than that of free amylase as a result of higher thermal stability of the composite. Entrapped amylase showed excellent stability and lost only 9% of its activity after 21 days of storage in a buffer solution, while free enzyme was totally inactivated after 17 days. The material can be used as either a magnetically separable reusable catalyst or a catalytic ceramic coating with at least 10 cycles of use.
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Affiliation(s)
- Bazhena V Astafyeva
- Laboratory of Solution Chemistry of Advanced Materials and Technologies , ITMO University , St. Petersburg 191002 , Russian Federation
| | - Olga E Shapovalova
- Laboratory of Solution Chemistry of Advanced Materials and Technologies , ITMO University , St. Petersburg 191002 , Russian Federation
| | - Andrey S Drozdov
- Laboratory of Solution Chemistry of Advanced Materials and Technologies , ITMO University , St. Petersburg 191002 , Russian Federation
| | - Vladimir V Vinogradov
- Laboratory of Solution Chemistry of Advanced Materials and Technologies , ITMO University , St. Petersburg 191002 , Russian Federation
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Inanan T, Tüzmen N, Karipcin F. Oxime-functionalized cryogel disks for catalase immobilization. Int J Biol Macromol 2018; 114:812-820. [PMID: 29626600 DOI: 10.1016/j.ijbiomac.2018.04.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 03/28/2018] [Accepted: 04/03/2018] [Indexed: 01/27/2023]
Abstract
Catalase is a protective enzyme against oxidative stress and converts hydrogen peroxide into water and molecular oxygen. In the current study, catalase immobilization was applied onto the oxime-functionalized cryogel disks. Cryogel disks were produced by free radical polymerization. After cutting as circular disks, oxime ligand (4-biphenylchloroglyoxime, BPCGO) was attached and oxime-functionalized cryogel disks were obtained. After optimization of several immobilization parameters such as pH, initial catalase concentration, temperature and ionic strength, maximum catalase load was detected as 261.7 ± 11.2mg/g for cryogel disk at pH5.0. Activity studies indicated that immobilization enhanced the enzyme activity in basic pH region, the temperature range of 15-35°C and at ionic strengths between 0.2 and 1.0M NaCl. Km was detected as 9.9 and 11.0mM and Vmax was 357.1 and 769.2μmol min-1 for free and immobilized catalase, respectively. kcat and Km/kcat values showed that immobilization enhanced the catalytic efficiency. Storage stability experiments demonstrated that immobilization increased the usability period. Furthermore, catalase desorption was achieved by 1.0M NaSCN at pH8.0 successfully and catalase adsorption capacity of oxime-functionalized cryogel disk was decreased by 9.9% at the end of 5 adsorption-desorption cycle.
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Affiliation(s)
- Tülden Inanan
- Aksaray University, Technical Vocational School of Higher Education, Department of Chemistry and Chemical Processing Technology, Aksaray, Turkey.
| | - Nalan Tüzmen
- Dokuz Eylul University, Faculty of Science, Department of Chemistry, Izmir, Turkey
| | - Fatma Karipcin
- Nevşehir Hacı Bektaş Veli University, Faculty of Science and Arts, Department of Chemistry, Nevşehir, Turkey
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Klapiszewski Ł, Zdarta J, Jesionowski T. Titania/lignin hybrid materials as a novel support for α-amylase immobilization: A comprehensive study. Colloids Surf B Biointerfaces 2018; 162:90-97. [DOI: 10.1016/j.colsurfb.2017.11.045] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/05/2017] [Accepted: 11/16/2017] [Indexed: 12/25/2022]
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Yuan B, Yang XQ, Xue LW, Feng YN, Jiang JH. A novel recycling system for nano-magnetic molecular imprinting immobilised cellulases: Synergistic recovery of anthocyanin from fruit and vegetable waste. BIORESOURCE TECHNOLOGY 2016; 222:14-23. [PMID: 27697733 DOI: 10.1016/j.biortech.2016.09.088] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/19/2016] [Accepted: 09/20/2016] [Indexed: 06/06/2023]
Abstract
Fruit and vegetable waste (FVW) is become a serious problem in developing countries. Enzymolysis is a potentially useful method for the treatment of FVW. In the present study, novel recycled magnetic molecular imprinting immobilised cellulases were prepared based on magnetic modified chitosan (MCTS) and Fe3O4. The properties of obtained were characterised by IR and grain-size measurements. Evaluation of a single factor affecting the loading efficiency of supports and the mixed immobilised enzymes showed better capacity than single immobilised, or free, enzymes. The immobilisation process could improve cellulase stability and repeatability of the method. Meanwhile, the kinetic parameters were also verified. The immobilised enzymes retained most of their capacity after 60days' storage while free enzymes lost it within 30days. Tests showed that the immobilised enzymes developed excellent capacity and five anthocyanins were collected.
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Affiliation(s)
- Bo Yuan
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province & School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China
| | - Xù-Qin Yang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province & School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China
| | - Ling-Wei Xue
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province & School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China
| | - Yan-Nan Feng
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province & School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China
| | - Ji-Hong Jiang
- The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province & School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, PR China.
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Antony N, Balachandran S, Mohanan P. Immobilization of diastase α-amylase on nano zinc oxide. Food Chem 2016; 211:624-30. [DOI: 10.1016/j.foodchem.2016.05.049] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 05/06/2016] [Accepted: 05/09/2016] [Indexed: 10/21/2022]
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12
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Çakmakçi E, Muhsir P, Demir S. Physical and Covalent Immobilization of Lipase onto Amine Groups Bearing Thiol-Ene Photocured Coatings. Appl Biochem Biotechnol 2016; 181:1030-1047. [DOI: 10.1007/s12010-016-2266-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/23/2016] [Indexed: 12/25/2022]
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13
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Radovanović M, Jugović B, Gvozdenović M, Jokić B, Grgur B, Bugarski B, Knežević-Jugović Z. Immobilization of α-amylase via adsorption on magnetic particles coated with polyaniline. STARCH-STARKE 2015. [DOI: 10.1002/star.201500161] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Branimir Jugović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts; Belgrade Serbia
| | - Milica Gvozdenović
- University of Belgrade; Faculty of Technology and Metallurgy; Belgrade Serbia
| | - Bojan Jokić
- University of Belgrade; Faculty of Technology and Metallurgy; Belgrade Serbia
| | - Branimir Grgur
- University of Belgrade; Faculty of Technology and Metallurgy; Belgrade Serbia
| | - Branko Bugarski
- University of Belgrade; Faculty of Technology and Metallurgy; Belgrade Serbia
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Torabizadeh H, Tavakoli M, Safari M. Immobilization of thermostable α-amylase from Bacillus licheniformis by cross-linked enzyme aggregates method using calcium and sodium ions as additives. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.06.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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The fusions of elastin-like polypeptides and xylanase self-assembled into insoluble active xylanase particles. J Biotechnol 2014; 177:60-6. [PMID: 24613298 DOI: 10.1016/j.jbiotec.2014.02.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 02/21/2014] [Accepted: 02/22/2014] [Indexed: 11/23/2022]
Abstract
We fused the genes of elastin-like polypeptides (ELPs) and xylanase and then expressed them in Escherichia coli. Unexpectedly, the fusion proteins self-assembled into insoluble active particles as the ELPs underwent a hardly reversible phase transition. The specific activity of the particles was 92% of the native counterparts, which means it can act as a pull-down handler for converting soluble proteins into active aggregates. We evaluated the characterizations of the insoluble active xylanase particles in detail and the results were encouraging. The pH optimum (6.0) of the particles was the same as the free one, but the optimum pH range was 5-7, while the free xylanase was 6-7. The free xylanase had an optimum temperature of 50°C, whereas the insoluble active xylanase particles shifted to 70°C. The pH stability, thermostability and storage stability of the xylanase particles increased significantly when compared with the free xylanase. We also observed an increase of the Km values of the free xylanase from 0.374gL(-1) to 0.980gL(-1) at the insoluble state. The considerable higher activity and stability of the xylanase particles were much like immobilized xylanases and could be valuable for its industrial application.
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Çakmakçı E, Çiğil AB, Danış Ö, Demir S, Kahraman MV. Immobilization of alpha-amylase on aminated polyimide membrane: Preparation, characterization, and properties. STARCH-STARKE 2013. [DOI: 10.1002/star.201300160] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Emrah Çakmakçı
- Department of Chemistry; Marmara University; Istanbul Turkey
| | | | - Özkan Danış
- Department of Chemistry; Marmara University; Istanbul Turkey
| | - Serap Demir
- Department of Chemistry; Marmara University; Istanbul Turkey
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17
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Ozerkan T, Aydemir Sezer U, Deliloglu Gurhan İ, Gulce İz S, Hasirci N. Semi-IPN chitosan/polyvinylpyrrolidone microspheres and films: sustained release and property optimisation. J Microencapsul 2013; 30:762-70. [DOI: 10.3109/02652048.2013.788084] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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18
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Optimization and Immobilization of Purified Labeo rohita Visceral Protease by Entrapment Method. Enzyme Res 2013; 2013:874050. [PMID: 23533718 PMCID: PMC3600187 DOI: 10.1155/2013/874050] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 01/22/2013] [Indexed: 11/17/2022] Open
Abstract
The purified fish visceral protease enzyme was immobilized by using various concentrations of sodium alginate and calcium chloride to optimize the best concentration for the formation of the beads. Then it was characterized by assaying the optimal pH, temperature, storage stability and reusability. The results on immobilization with sodium alginate and calcium chloride showed that a combination of 2% sodium alginate and 0.3 M calcium chloride weas found to be the optimum concentration for the formation of spherical and stable beads, this gave a maximal entrapped activity of 48.31%, and there was no change in the optimum pH 8.0 and temperature 40°C of protease before and after entrapment. The results on stability and reusability indicated that it was stable at 4°C retaining 100% residual activity after 5 days of storage and 67% loss of activity after ten days of storage and it retained 100% residual activity on the first reuse, 75% residual activity on the second reuse, 25% residual activity on the third use and complete loss in the activity on the fourth reuse.
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Franssen MCR, Steunenberg P, Scott EL, Zuilhof H, Sanders JPM. Immobilised enzymes in biorenewables production. Chem Soc Rev 2013; 42:6491-533. [DOI: 10.1039/c3cs00004d] [Citation(s) in RCA: 196] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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Madakbaş S, Danış Ö, Demir S, Kahraman MV. Xylanase immobilization on functionalized polyaniline support by covalent attachment. STARCH-STARKE 2012. [DOI: 10.1002/star.201200104] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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21
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Polyaniline-assisted silver nanoparticles: a novel support for the immobilization of α-amylase. Appl Microbiol Biotechnol 2012; 97:1513-22. [DOI: 10.1007/s00253-012-4384-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 07/23/2012] [Accepted: 08/21/2012] [Indexed: 11/26/2022]
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22
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Tüzmen N, Kalburcu T, Denizli A. α-Amylase immobilization onto dye attached magnetic beads: Optimization and characterization. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.01.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Nwagu TN, Aoyagi H, Okolo BN, Yoshida S. Immobilization of a saccharifying raw starch hydrolyzing enzyme on functionalized and non-functionalized sepa beads. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.01.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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24
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Khan MJ, Husain Q, Azam A. Immobilization of porcine pancreatic α-amylase on magnetic Fe2O3 nanoparticles: Applications to the hydrolysis of starch. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-011-0105-8] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Demir S, Gök SB, Kahraman MV. α-Amylase immobilization on functionalized nano CaCO3by covalent attachment. STARCH-STARKE 2011. [DOI: 10.1002/star.201100058] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Hirsh SL, Nosworthy NJ, Kondyurin A, dos Remedios CG, McKenzie DR, Bilek MMM. Linker-free covalent thermophilic β-glucosidase functionalized polymeric surfaces. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm13376d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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27
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Preparation and characterization of UV-curable polymeric support for covalent immobilization of xylanase enzyme. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2010.10.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Zhao R, Lu J, Tan T. Preparation of Polyglycidylmethacrylate Macropore Beads and Application in Candidaspecies 99-125 Lipase Immobilization. Chem Eng Technol 2010. [DOI: 10.1002/ceat.201000263] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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29
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El-Ghaffar MAA, Atia KS, Hashem MS. Synthesis and characterization of binary copolymers of methyl methacrylate with glycidyl methacrylate and 2-hydroxy ethyl methacrylate as carriers for cellulase. J Appl Polym Sci 2010. [DOI: 10.1002/app.30063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhou J. Immobilization of cellulase on a reversibly soluble-insoluble support: properties and application. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:6741-6746. [PMID: 20459124 DOI: 10.1021/jf100759c] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Cellulase was coupled to N-succinyl-chitosan (NSC) showing soluble-insoluble characteristics with pH change. Cellulase immobilized on NSC (NSCC) is in a soluble state during the enzyme reaction, yet can be recovered in its insoluble form by lowering the pH of the reaction solution after the reaction. NSCC was obtained under the optimized immobilization conditions of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC) 10 mg, cellulase 15 mg, and pH 5.0. The retention activity of the immobilized cellulase was found to be 48.8%. The effects of pH and temperature on the activity and stability of NSCC were studied and compared with those of free cellulase. The optimum temperature and pH of NSCC was 45 degrees C and 4.0, respectively, which was found unchanged compared with the free one. The stability of cellulase against change in the pH and temperature was improved by the immobilization. The effectiveness of employing NSCC for extracting flavonoids from Ginkgo biloba leaf powder was investigated. Results showed that NSCC enhanced extraction yield up to 2.35-fold when compared with the conventional method. Moreover, NSCC retained 83.5% of its initial activity after five batches of hydrolysis reaction.
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Affiliation(s)
- Jianqin Zhou
- School of Pharmacy, Medical College, Soochow University, Suzhou, PR China.
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Effects of static magnetic field on activity and stability of immobilized α-amylase in chitosan bead. CATAL COMMUN 2010. [DOI: 10.1016/j.catcom.2009.11.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Yarar Ü, Kahraman MV. Covalent immobilization of α-amylase onto UV-curable coating. J Appl Polym Sci 2009. [DOI: 10.1002/app.30442] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Relationship between potato starch isolation methods and kinetic parameters of hydrolysis by free and immobilised α-amylase on alginate (from Laminaria digitata algae). J Food Compost Anal 2009. [DOI: 10.1016/j.jfca.2008.11.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tee BL, Kaletunç G. Immobilization of a thermostable alpha-amylase by covalent binding to an alginate matrix increases high temperature usability. Biotechnol Prog 2009; 25:436-45. [PMID: 19353735 DOI: 10.1002/btpr.117] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Thermostable alpha-amylase was covalently bound to calcium alginate matrix to be used for starch hydrolysis at liquefaction temperature of 95 degrees C. 1-ethyl-3-(3-dimethylamino-propyl) carbodiimide hydrochloride (EDAC) was used as crosslinker. EDAC reacts with the carboxylate groups on the calcium alginate matrix and the amine groups of the enzyme. Ethylenediamine tetraacetic acid (EDTA) treatment was applied to increase the number of available carboxylate groups on the calcium alginate matrix for EDAC binding. After the immobilization was completed, the beads were treated with 0.1 M calcium chloride solution to reinstate the bead mechanical strength. Enzyme loading efficiency, activity, and reusability of the immobilized alpha-amylase were investigated. Covalently bound thermostable alpha-amylase to calcium alginate produced a total of 53 g of starch degradation/mg of bound protein after seven consecutive starch hydrolysis cycles of 10 min each at 95 degrees C in a stirred batch reactor. The free and covalently bound alpha-amylase had maximum activity at pH 5.5 and 6.0, respectively. The Michaelis-Menten constant (K(m)) of the immobilized enzyme (0.98 mg/mL) was 2.5 times greater than that of the free enzyme (0.40 mg/mL). The maximum reaction rate (V(max)) of immobilized and free enzyme were determined to be 10.4-mg starch degraded/mL min mg bound protein and 25.7-mg starch degraded/mL min mg protein, respectively. The high cumulative activity and seven successive reuses obtained at liquefaction temperature make the covalently bound thermostable alpha-amylase to calcium alginate matrix, a promising candidate for use in industrial starch hydrolysis process.
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Affiliation(s)
- Boon L Tee
- Food Agricultural and Biological Engineering Dept., The Ohio State University, 590 Woody Hayes Drive, Columbus, OH 43210, USA
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