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Rawat HK, Soni H, Suryawanshi RK, Choukade R, Prajapati BP, Kango N. Exo-inulinase production from Aspergillus fumigatus NFCCI 2426: purification, characterization, and immobilization for continuous fructose production. J Food Sci 2021; 86:1778-1790. [PMID: 33884619 DOI: 10.1111/1750-3841.15681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 02/11/2021] [Accepted: 02/15/2021] [Indexed: 11/28/2022]
Abstract
Aspergillus fumigatus was found to produce thermostable exo-inulinase (EC 3.8.1.80; 38 U/ml) on inulin-rich infusions. Exo-inulinase (14.6 U/mg) was immobilized on glutaraldehyde activated Ca-alginate beads for continuous generation of fructose by hydrolyzing sucrose, chicory, and dandelion substrates. Immobilization of enzyme was confirmed by microscopic and spectroscopic techniques. The exo-inulinase was purified using ion-exchange (1.30-folds) and size-exclusion chromatography (2.71-folds). The purified exo-inulinase showed 64 kDa band on gel and was optimally active at 60 °C and pH 6.0. Kinetic constants, Km and Vmax of purified exo-inulinase, were 5.88 mM and 1.66 µM/min, respectively, and its relative activity was found to be enhanced (125.8%) in the presence of calcium ion. Immobilized preparation was utilized for continuous generation of fructose from chicory juice (26 to 70%) and dandelion root extracts (16 to 24%) by recycling upto five cycles, respectively. In comparison to other sweeteners, such as sucrose, fructose is considered as a healthy alternative. The present study demonstrated the use of immobilized exo-inulinase in continuous generation of fructose from some underutilized plant sources that can be used in food industry. PRACTICAL APPLICATION: Thermostable exo-inulinase produced by A. fumigatus was immobilized on calcium alginate matrix and was employed for continuous hydrolysis of chicory juice and dandelion root extract for generation of fructose syrup.
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Affiliation(s)
- Hemant Kumar Rawat
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya, Sagar (A Central University), Madhya Pradesh, India
| | - Hemant Soni
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya, Sagar (A Central University), Madhya Pradesh, India
- Division of Microbiology, Central Ayurveda Research Institute (CARI), Jhansi, Uttar Pradesh, India
| | - Rahul Kumar Suryawanshi
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya, Sagar (A Central University), Madhya Pradesh, India
| | - Ritumbhara Choukade
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya, Sagar (A Central University), Madhya Pradesh, India
| | - Bhanu Pratap Prajapati
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya, Sagar (A Central University), Madhya Pradesh, India
| | - Naveen Kango
- Department of Microbiology, Dr. Harisingh Gour Vishwavidyalaya, Sagar (A Central University), Madhya Pradesh, India
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Mukundan S, Melo JS, Sen D, Bahadur J. Enhancement in β-galactosidase activity of Streptococcus lactis cells by entrapping in microcapsules comprising of correlated silica nanoparticles. Colloids Surf B Biointerfaces 2020; 195:111245. [DOI: 10.1016/j.colsurfb.2020.111245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 02/08/2023]
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Vakili F, Mojtabavi S, Imanparast S, Kianmehr Z, Forootanfar H, Faramarzi MA. Immobilization of lipase on the modified magnetic diatomite earth for effective methyl esterification of isoamyl alcohol to synthesize banana flavor. 3 Biotech 2020; 10:447. [PMID: 33062576 PMCID: PMC7511503 DOI: 10.1007/s13205-020-02437-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/11/2020] [Indexed: 02/07/2023] Open
Abstract
The present study was designed to propose a simple, cost-effective, and efficient method for the preparation of a biocompatible composite made from magnetic diatomaceous earth (mDE) coated by aminopropyltriethoxysilane (APTES) and its application for immobilization of porcine pancreatic lipase (PPL). The produced mDE-APTES was instrumentally characterized and the obtained results of FTIR analysis and scanning electron microscopy equipped by energy-dispersive X-ray spectroscopy (SEM-EDS) showed successful coating of APTES on mDE surface. PPL was then immobilized onto mDE to obtain the biocatalyst of PPL@mDE (immobilization yield and efficiency of 78.0 ± 0.3% and 80.1 ± 0.6, respectively) and the presence of enzyme was confirmed by EDS method. The attained results of the reusability of PPL@mDE revealed that 57% of the initial activity was retained after 11 cycles of biocatalyst application. PPL@mDE demonstrated higher storage stability than the free enzyme at 4 °C, 25 °C, and 37 °C. The apparent K m (2.35 ± 0.12 mM) and V max (13.01 ± 0.64 µmol/min) values for the immobilized enzyme were considerably altered compared to those of the free enzyme (p > 0.05). PPL@mDE was subsequently employed for the synthesis of banana flavor (isoamyl acetate) in n-hexane, which yields an esterification percentage of 100 at 37 °C after 3 h. However, it merits further investigations to find out about large-scale application of the as-synthesized biocatalyst for esterification.
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Affiliation(s)
- Fatemeh Vakili
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, 1417614411 Tehran, Iran
- Department of Cellular and Molecular Biology (Biochemistry), Faculty of Biological Science, North Tehran Branch, Islamic Azad University, P.O. Box 165115-3311, 77009847 Tehran, Iran
| | - Somayeh Mojtabavi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, 1417614411 Tehran, Iran
| | - Somaye Imanparast
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, 1417614411 Tehran, Iran
| | - Zahra Kianmehr
- Department of Cellular and Molecular Biology (Biochemistry), Faculty of Biological Science, North Tehran Branch, Islamic Azad University, P.O. Box 165115-3311, 77009847 Tehran, Iran
| | - Hamid Forootanfar
- Pharmaceutical Sciences and Cosmetic Products Research Center, Kerman University of Medical Sciences, Kerman, Iran
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, 1417614411 Tehran, Iran
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Cayetano-Cruz M, Coffeen CF, Valadez-García J, Montiel C, Bustos-Jaimes I. Decoration of virus-like particles with an enzymatic activity of biomedical interest. Virus Res 2018; 255:1-9. [DOI: 10.1016/j.virusres.2018.06.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/20/2018] [Accepted: 06/27/2018] [Indexed: 12/19/2022]
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Cabrera MP, Assis CRD, Neri DFM, Pereira CF, Soria F, Carvalho LB. High sucrolytic activity by invertase immobilized onto magnetic diatomaceous earth nanoparticles. ACTA ACUST UNITED AC 2017; 14:38-46. [PMID: 28480172 PMCID: PMC5406527 DOI: 10.1016/j.btre.2017.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 03/25/2017] [Accepted: 03/29/2017] [Indexed: 11/26/2022]
Abstract
Innovative biocatalyst with good properties to produce invert sugar. mDE-APTES-invertase showed 92.5% of residual specific activity. High sucrolytic activity (3358 U mg−1 protein) by mDE-APTES-invertase was obtained. Remarkable results of thermal and storage stability, and reuse for mDE-APTES-invertase were found.
Invertase immobilized on magnetic diatomaceous earth nanoparticles (mDE-APTES-invertase) with high sucrolytic activity was obtained by an easy and low-cost method. An experimental design was carried out to investigate the best immobilization conditions and it allowed obtaining an immobilized derivative with a residual specific activity equal to 92.5%. Then, a second experimental design selected the mDE-APTES-invertase with higher specific activity in relation to other derivatives reported in the literature (2.42-fold). Thermal and storage stability for immobilized invertase were found to be 35 °C for 60 min (85% retained activity) and 120 days storage period (80% retained activity), respectively. Besides, a residual activity higher than 60% and 50% were observed for mDE-APTES-invertase after reuse in short and long term, respectively. Given the simple and efficient method to obtain an immobilized derivative with high activity, the mDE nanoparticles appear to be a promising matrix for invertase immobilization as well as for other biomolecules.
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Affiliation(s)
- Mariana P Cabrera
- Departamento de Bioquímica e Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil.,Instituto de Investigaciones para la Industria Química (INIQUI), Universidad Nacional de Salta - CONICET, 4400, Salta, Argentina
| | - Caio R D Assis
- Departamento de Bioquímica e Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil
| | - David F M Neri
- Instituto de Pesquisa em Ciência dos Materiais, Universidade Federal do Vale do São Francisco, 48920-310, Juazeiro, BA, Brazil
| | - Claudete F Pereira
- Departamento de Química Fundamental, Universidade Federal de Pernambuco, Cidade Universitária, 50740-560, Recife, PE, Brazil
| | - Fernando Soria
- Instituto de Investigaciones para la Industria Química (INIQUI), Universidad Nacional de Salta - CONICET, 4400, Salta, Argentina
| | - Luiz B Carvalho
- Departamento de Bioquímica e Laboratório de Imunopatologia Keizo Asami (LIKA), Universidade Federal de Pernambuco, Cidade Universitária, 50670-901, Recife, PE, Brazil
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Pérez de los Santos AI, Cayetano-Cruz M, Gutiérrez-Antón M, Santiago-Hernández A, Plascencia-Espinosa M, Farrés A, Hidalgo-Lara ME. Improvement of catalytical properties of two invertases highly tolerant to sucrose after expression in Pichia pastoris . Effect of glycosylation on enzyme properties. Enzyme Microb Technol 2016; 83:48-56. [DOI: 10.1016/j.enzmictec.2015.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 11/16/2022]
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Singh V, Ahmad S. Carboxymethyl cellulose-gelatin-silica nanohybrid: an efficient carrier matrix for alpha amylase. Int J Biol Macromol 2014; 67:439-45. [PMID: 24709014 DOI: 10.1016/j.ijbiomac.2014.03.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 03/19/2014] [Accepted: 03/26/2014] [Indexed: 11/18/2022]
Abstract
Carboxymethyl cellulose (CMC)-gelatin (G) dual templated polymerization of tetramethoxysilane (TMOS) furnished an efficient hybrid carrier support for alpha amylase. The material has been characterized using FTIR, XRD SEM, TGA and BET studies. The amylase was immobilized at the presynthesized hybrid support by adsorption and the immobilized enzyme was used to optimize the conditions for soluble starch hydrolysis. The immobilization did not change the optimum working pH (pH 5) and temperature (40°C) of the enzymatic reaction. The kinetic parameters of the immobilized (Km=9.970mgmL(-1); Vmax=66.23mgmL(-1)min(-1)) and free amylase (KM=4.0509mgmL(-1), Vmax=4.2909mgmL(-1)min(-1)) indicated that the immobilization has enhanced the catalytic function of diastase alpha amylase. The immobilized enzyme showed higher shelf life as compared to the free enzyme in solution and it could be reused for seven consecutive cycles where 85% of the initial activity was exhibited even in the last cycle. The present material is as efficient as our previously reported material CMC-AgNps-Si.
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Affiliation(s)
- Vandana Singh
- Department of Chemistry, University of Allahabad, Allahabad 211002, India.
| | - Shakeel Ahmad
- Department of Chemistry, University of Allahabad, Allahabad 211002, India
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Park H, Ahn J, Lee J, Lee H, Kim C, Jung JK, Lee H, Lee EG. Expression, immobilization and enzymatic properties of glutamate decarboxylase fused to a cellulose-binding domain. Int J Mol Sci 2011; 13:358-68. [PMID: 22312257 PMCID: PMC3269691 DOI: 10.3390/ijms13010358] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Revised: 12/15/2011] [Accepted: 12/19/2011] [Indexed: 11/24/2022] Open
Abstract
Escherichia coli-derived glutamate decarboxylase (GAD), an enzyme that catalyzes the conversion of glutamic acid to gamma-aminobutyric acid (GABA), was fused to the cellulose-binding domain (CBD) and a linker of Trichoderma harzianum endoglucanase II. To prevent proteolysis of the fusion protein, the native linker was replaced with a S3N10 peptide known to be completely resistant to E. coli endopeptidase. The CBD-GAD expressed in E. coli was successfully immobilized on Avicel, a crystalline cellulose, with binding capacity of 33 ± 2 nmolCBD-GAD/gAvicel and the immobilized enzymes retained 60% of their initial activities after 10 uses. The results of this report provide a feasible alternative to produce GABA using immobilized GAD through fusion to CBD.
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Affiliation(s)
- Hyemin Park
- Biotechnology Process Engineering Center, KRIBB, Daejeon 305-600, Korea; E-Mails: (H.P.); (J.A.); (J.L.); (H.L.); (C.K.); (J.-K.J.); (H.L.)
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Flores-Maltos A, Rodríguez-Durán LV, Renovato J, Contreras JC, Rodríguez R, Aguilar CN. Catalytical Properties of Free and Immobilized Aspergillus niger Tannase. Enzyme Res 2011; 2011:768183. [PMID: 21918717 PMCID: PMC3171769 DOI: 10.4061/2011/768183] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2011] [Accepted: 07/13/2011] [Indexed: 12/03/2022] Open
Abstract
A fungal tannase was produced, recovered, and immobilized by entrapment in calcium alginate beads. Catalytical properties of the immobilized enzyme were compared with those of the free one. Tannase was produced intracellularly by the xerophilic fungus Aspergillus niger GH1 in a submerged fermentation system. Enzyme was recovered by cell disruption and the crude extract was partially purified. The catalytical properties of free and immobilized tannase were evaluated using tannic acid and methyl gallate as substrates. KM and Vmax values for free enzyme were very similar for both substrates. But, after immobilization, KM and Vmax values increased drastically using tannic acid as substrate. These results indicated that immobilized tannase is a better biocatalyst than free enzyme for applications on liquid systems with high tannin content, such as bioremediation of tannery or olive-mill wastewater.
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Affiliation(s)
- Abril Flores-Maltos
- Department of Food Science and Technology, School of Chemistry, Autonomous University of Coahuila, Boulevard V. Carranza and González Lobo s/n, 25280 Saltillo, COAH, Mexico
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Expression and characterization in E. coli of a neutral invertase from a metagenomic library. World J Microbiol Biotechnol 2010. [DOI: 10.1007/s11274-009-0184-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
Bioactive paper includes a range of potential paper-based materials that can perform analytical functions normally reserved for multi-well plates in the laboratory or for portable electronic devices. Pathogen detection is the most compelling application. Simple paper-based detection, not requiring hardware, has the potential to have impacts in society, ranging from the kitchen to disasters in the developing world. Bioactive-paper research is an emerging field with significant efforts in Canada, USA (Harvard), Finland and Australia. Following a brief introduction to the material and surface properties of paper, I review the literature. Some of the early work exploits the porosity of paper to generate paper-based microfluidics ("paperfluidics") devices. I exclude from this review printed electronic devices and plastics-supported devices.
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Affiliation(s)
- Robert Pelton
- Department of Chemical Engineering, JHE-136, McMaster University, Hamilton, Ontario, Canada L8S 4L7
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