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Khafaga DSR, Muteeb G, Elgarawany A, Aatif M, Farhan M, Allam S, Almatar BA, Radwan MG. Green nanobiocatalysts: enhancing enzyme immobilization for industrial and biomedical applications. PeerJ 2024; 12:e17589. [PMID: 38993977 PMCID: PMC11238728 DOI: 10.7717/peerj.17589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/28/2024] [Indexed: 07/13/2024] Open
Abstract
Nanobiocatalysts (NBCs), which merge enzymes with nanomaterials, provide a potent method for improving enzyme durability, efficiency, and recyclability. This review highlights the use of eco-friendly synthesis methods to create sustainable nanomaterials for enzyme transport. We investigate different methods of immobilization, such as adsorption, ionic and covalent bonding, entrapment, and cross-linking, examining their pros and cons. The decreased environmental impact of green-synthesized nanomaterials from plants, bacteria, and fungi is emphasized. The review exhibits the various uses of NBCs in food industry, biofuel production, and bioremediation, showing how they can enhance effectiveness and eco-friendliness. Furthermore, we explore the potential impact of NBCs in biomedicine. In general, green nanobiocatalysts are a notable progression in enzyme technology, leading to environmentally-friendly and effective biocatalytic methods that have important impacts on industrial and biomedical fields.
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Affiliation(s)
- Doaa S. R. Khafaga
- Department of Basic Medical Sciences, Faculty of Medicine, Galala University, Suez, Egypt
| | - Ghazala Muteeb
- Department of Nursing, College of Applied Medical Sciences, King Faisal University, Al-Ahsa, Saudi Arabia
| | | | - Mohammad Aatif
- Department of Public Health, College of Applied Medical Sciences, King Faisal University, Al-Ahsa, Saudi Arabia
| | - Mohd Farhan
- Department of Basic Sciences, King Faisal University, Al Ahsa, Saudi Arabia
| | - Salma Allam
- Faculty of Medicine, Galala University, Suez, Egypt
| | - Batool Abdulhadi Almatar
- Department of Nursing, College of Applied Medical Sciences, King Faisal University, Al-Ahsa, Saudi Arabia
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Han Y, Jiang H, Huang C, Wu X, Ouyang Y, Chen H, Lan D, Wang Y, Zheng B, Xia J. Enzymatic interfacial conversion of acylglycerols in Pickering emulsions stabilized by hydrogel microparticles. J Colloid Interface Sci 2024; 661:228-236. [PMID: 38301461 DOI: 10.1016/j.jcis.2024.01.192] [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: 11/07/2023] [Revised: 01/04/2024] [Accepted: 01/26/2024] [Indexed: 02/03/2024]
Abstract
HYPOTHESIS A critical challenge in the enzymatic conversion of acylglycerols is the limited exposure of the enzyme dissolved in the aqueous solution to the hydrophobic substrate in the oil phase. Positioning the enzyme in a microenvironment with balanced hydrophobicity and hydrophilicity in Pickering emulsion will facilitate the acylglycerol-catalyzing reactions at the interface between the oil and liquid phases. EXPERIMENTS In this work, to overcome the challenge of biphasic catalysis, we report a method to immobilize enzymes in polyethylene glycol (PEG)-based hydrogel microparticles (HMPs) at the interface between the oil and water phases in Pickering emulsion to promote the enzymatic conversion of acylglycerols. FINDINGS 3 wt% of HMPs can stabilize the oil-in-water Pickering emulsion for at least 14 days and increase the viscosity of emulsions. Lipase-HMP conjugates showed significantly higher hydrolytic activity in Pickering emulsion; HMP-immobilized lipase SMG1 showed an activity about three times that of free lipase SMG1. Co-immobilization of a lipase and a fatty acid photodecarboxylase from Chlorella variabilis (CvFAP) in Pickering emulsion enables light-driven cascade conversion of triacylglycerols to hydrocarbons, transforming waste oil to renewable biofuels in a green and sustainable approach. HMPs stabilize the Pickering emulsion and promote interfacial biocatalysis in converting acylglycerols to renewable biofuels.
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Affiliation(s)
- Yongxu Han
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hao Jiang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Chen Huang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Xue Wu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Yinghan Ouyang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Hongfei Chen
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Dongming Lan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yonghua Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Bo Zheng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Jiang Xia
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
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Ghalkhani M, Teymourinia H, Ebrahimi F, Irannejad N, Karimi-Maleh H, Karaman C, Karimi F, Dragoi EN, Lichtfouse E, Singh J. Engineering and application of polysaccharides and proteins-based nanobiocatalysts in the recovery of toxic metals, phosphorous, and ammonia from wastewater: A review. Int J Biol Macromol 2023; 242:124585. [PMID: 37105252 DOI: 10.1016/j.ijbiomac.2023.124585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 04/29/2023]
Abstract
Global waste production is anticipated reach to 2.59 billion tons in 2030, thus accentuating issues of environmental pollution and health security. 37 % of waste is landfilled, 33 % is discharged or burned in open areas, and only 13.5 % is recycled, which makes waste management poorly efficient in the context of the circular economy. There is therefore a need for methods to recycle waste into valuable materials through resource recovery process. Progress in the field of recycling is strongly dependent on the development of efficient, stable, and reusable, yet inexpensive catalysts. In this case, a growing attention has been paid to development and application of nanobiocatalysts with promising features. The main purpose of this review paper is to: (i) introduce nanobiomaterials and describe their effective role in the preparation of functional nanobiocatalysts for the recourse recovery aims; (ii) provide production methods and the efficiency improvement of nanobaiocatalysts; (iii) give comprehensive description of valued resource recovery for reducing toxic chemicals from the contaminated environment; (iv) describe various technologies for the valued resource recovery; (v) state the limitation of the valued resource recovery; (vi) and finally economic importance and current scenario of nanobiocatalysts strategies applicable for the resource recovery processes.
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Affiliation(s)
- Masoumeh Ghalkhani
- Electrochemical Sensors Research Laboratory, Department of Chemistry, Faculty of Science, Shahid Rajaee Teacher Training University, Tehran, Iran.
| | | | - Fatemeh Ebrahimi
- Thin Layer and Nanotechnology Laboratory, Department of Chemical Technologies, Iranian Research Organization for Science and Technology (IROST), Tehran, Iran
| | - Neda Irannejad
- Department of Chemistry, Isfahan University of Technology, Isfahan, Iran
| | - Hassan Karimi-Maleh
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, PR China; Department of Chemical Engineering, Quchan University of Technology, Quchan 9477177870, Iran; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai 602105, India.
| | - Ceren Karaman
- Department of Electricity and Energy, Vocational School of Technical Sciences, Akdeniz University, Antalya 07070, Turkey; School of Engineering, Lebanese American University, Byblos, Lebanon
| | - Fatemeh Karimi
- Department of Chemical Engineering, Quchan University of Technology, Quchan 9477177870, Iran
| | - Elena Niculina Dragoi
- "Cristofor Simionescu" Faculty of Chemical Engineering and Environmental Protection, "Gheorghe Asachi" Technical University, Bld. D. Mangeron no 73, 700050, Iasi, Romania
| | - Eric Lichtfouse
- Tate Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China.
| | - Jagpreet Singh
- Department of Chemical Engineering, University Centre for Research & Development, Chandigarh University, Mohali 140413, Punjab, India
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Study on the Interaction Mechanism of Methoxy Polyethylene Glycol Maleimide with Sweet Potato β-Amylase. Molecules 2023; 28:molecules28052188. [PMID: 36903434 PMCID: PMC10005407 DOI: 10.3390/molecules28052188] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
In this study, sweet potato β-amylase (SPA) was modified by methoxy polyethylene glycol maleimide (molecular weight 5000, Mal-mPEG5000) to obtain the Mal-mPEG5000-SPA modified β-amylase and the interaction mechanism between SPA and Mal-mPEG5000 was investigated. the changes in the functional groups of different amide bands and modifications in the secondary structure of enzyme protein were analyzed using infrared spectroscopy and circular dichroism spectroscopy. The addition of Mal-mPEG5000 transformed the random curl in the SPA secondary structure into a helix structure, forming a folded structure. The Mal-mPEG5000 improved the thermal stability of SPA and protected the structure of the protein from breaking by the surrounding. The thermodynamic analysis further implied that the intermolecular forces between SPA and Mal-mPEG5000 were hydrophobic interactions and hydrogen bonds due to the positive values of ΔHθ and ΔSθ. Furthermore, the calorie titration data showed that the binding stoichiometry for the complexation of Mal-mPEG5000 to SPA was 1.26, and the binding constant was 1.256 × 107 mol/L. The binding reaction resulted from negative enthalpy, indicating that the interaction of SPA and Mal-mPEG5000 was induced by the van der Waals force and hydrogen bonding. The UV results showed the formation of non-luminescent material during the interaction, the Fluorescence results confirmed that the mechanism between SPA and Mal-mPEG5000 was static quenching. According to the fluorescence quenching measurement, the binding constant (KA) values were 4.65 × 104 L·mol-1 (298K), 5.56 × 104 L·mol-1 (308K), and 6.91 × 104 L·mol-1 (318K), respectively.
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5
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Design and Applications of Enzyme-Linked Nanostructured Materials for Efficient Bio-catalysis. Top Catal 2023. [DOI: 10.1007/s11244-022-01770-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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6
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Murakami M, Osanai T. Biochemical Properties of β-Amylase from Red Algae and Improvement of Its Thermostability through Immobilization. ACS OMEGA 2022; 7:36195-36205. [PMID: 36278071 PMCID: PMC9583313 DOI: 10.1021/acsomega.2c03315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
β-Amylase hydrolyzes polysaccharides, such as starch, into maltose. It is used as an industrial enzyme in the production of food and pharmaceuticals. The eukaryotic red alga Cyanidioschyzon merolae is a unicellular alga that grows at an optimum pH of 2.0-3.0 and an optimum temperature of 40-50 °C. By focusing on the thermostability and acid resistance of the proteins of C. merolae, we investigated the properties of β-amylase from C. merolae (hereafter CmBAM) and explored the possibility of using CmBAM as an industrial enzyme. CmBAM showed the highest activity at 47 °C and pH 6.0. CmBAM had a relatively higher specificity for amylose as a substrate than for starch. Immobilization of CmBAM on a silica gel carrier improved storage stability and thermostability, allowing the enzyme to be reused. The optimum temperature and pH of CmBAM were comparable to those of existing β-amylases from barley and wheat. C. merolae does not use amylose, but CmBAM has a substrate specificity for both amylose and amylopectin but not for glycogen. Among the several β-amylases reported, CmBAM was unique, with a higher specificity for amylose than for starch. The high specificity of CmBAM for amylose suggests that isoamylase and pullulanase, which cleave the α-1,6 bonds of starch, may act together in vivo. Compared with several reported immobilized plant-derived β-amylases, immobilized CmBAM was comparable to β-amylase, with the highest reusability and the third-highest storage stability at 30 days of storage. In addition, immobilized CmBAM has improved thermostability by 15-20 °C, which can lead to wider applications and easier handling.
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7
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Preparation and characterization of a novel 3D polymer support for the immobilization of cyclodextrin glucanotransferase and efficient biocatalytic synthesis of α-arbutin. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Amani A, Taghavi S, Yazdian F, Mirzababaei S, Rashedi H, Faramarzi MA, Vahidi M. Immobilization of Urease Enzyme on Chitosan/Polyvinyl alcohol Electrospun Nanofibers. Biotechnol Prog 2022; 38:e3282. [PMID: 35707889 DOI: 10.1002/btpr.3282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 04/30/2022] [Accepted: 05/29/2022] [Indexed: 11/12/2022]
Abstract
Electrospun nanofibers have gained much attention for enzyme immobilization due to their high surface-to-volume ratio. In this study, urease was immobilized on chitosan/poly (vinyl alcohol) (PVA) nanofibers by both adsorption and crosslinking methods. In order to obtain nanofibers with more desirable properties, solutions with different ratios of chitosan and PVA were electrospun and crosslinked using glutaraldehyde. Comparing SEM images of the nanofibers, before and after immersing them in phosphate buffer, it was shown that higher chitosan content leads to more stable fibers. So, the solution with the chitosan to PVA ratio of 40:60 was used for enzyme immobilization. Then, the effects of initial protein concentration, temperature, incubation time, and method of immobilization were investigated to reach the highest enzyme activity. Under similar immobilization conditions, covalently immobilized urease showed higher activity, compared to uncrosslinked immobilized enzyme. Besides, it retained 30% of its initial activity after 10 times usage. So, this method was chosen for further investigation. Not only the activity of the immobilized enzyme was much higher than the free enzyme in a wide range of pH and temperature, but also stability of the immobilized enzyme was improved. Immobilized urease was then used to remove thiourea which is a toxic compound. Findings indicated 60% hydrolysis of initial thiourea in 12 hours. In conclusion, the findings showed that chitosan/PVA nanofibers are suitable candidates for the immobilization of urease. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Amir Amani
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran.,Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sara Taghavi
- Department of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran
| | - Soheyl Mirzababaei
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Hamid Rashedi
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahboobeh Vahidi
- Department of Pharmaceutical Biotechnology, Tehran University of Medical Sciences, Tehran, Iran
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9
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Tahsiri Z, Niakousari M, Hosseini SMH, Majdinasab M. Magnetic layered double hydroxide nanosheet as a biomolecular vessel for enzyme immobilization. Int J Biol Macromol 2022; 209:1422-1429. [PMID: 35461871 DOI: 10.1016/j.ijbiomac.2022.04.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/20/2022] [Accepted: 04/15/2022] [Indexed: 11/05/2022]
Abstract
Magnetic nanoparticle coated with manganese‑aluminum layered double hydroxide (Fe3O4/Mg-Al-CO3-LDH) was prepared and used as porous support for ficin (EC 3.4.22.3) as a model enzyme. Structural characteristics were studied by XRD, FTIR, SEM and light scattering. The quantity of immobilized ficin on the mentioned LDH and non-magnetic LDH was measured and enzyme activity, stability and reusability were compared. Results revealed that the core and shell structure of Fe3O4/Mg-Al-CO3-LDH makes it better dispersion compared to the pristine Mg-Al-CO3-LDH. Ficin showed strong affinity to absorption of the surface of mentioned LDHs nanosheet especially magnetic LDH, confirmed that the existence of Fe3O4 in the core structure of magnetic Fe3O4/Mg-Al-CO3-LDH caused better dispersion of LDH nanocrystal shell compared to pristine LDH moreover, enzyme which immobilized on the magnetic LDH supports, can be recovered by magnetic interaction. The storage stability of free ficin, immobilized ficin on the Mg-Al-CO3-LDH and Fe3O4/Mg-Al-CO3-LDH during a period of 120 days lost about 75%, 30%, and 20% of their initial activities, respectively.
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Affiliation(s)
- Z Tahsiri
- Department of Food Science and Technology, Shiraz University, Shiraz, Iran
| | - M Niakousari
- Department of Food Science and Technology, Shiraz University, Shiraz, Iran.
| | - S M H Hosseini
- Department of Food Science and Technology, Shiraz University, Shiraz, Iran
| | - M Majdinasab
- Department of Food Science and Technology, Shiraz University, Shiraz, Iran
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10
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Alzahrani HA. Encapsulation of peroxidase on hydrogel sodium polyacrylate spheres incorporated by silver and gold nanoparticles: A comparative study. MAIN GROUP CHEMISTRY 2022. [DOI: 10.3233/mgc-220033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The selectivity of biocatalysts based on enzymes, eco-friendly reaction systems, and strong catalyst performance is exceptionally compelling. For improving enzyme recyclability and stability, a good option that has been proved is immobilization. For enzyme immobilization, hydrogel sodium polyacrylate combined with nanoparticles is an interesting class of support matrices as compared to others. This study synthesizes and uses the cross-linked hydrogel sodium polyacrylate-decorated gold or silver nanoparticles (HSP/AuNPs or AgNPs) as immobilized support for peroxidase and FTIR characterizes it. The novel supports immobilized system properties enhanced biocompatibility. They have attained a greater immobilization yield (91% with HSP/AuNPs and 84% with HSP/AgNPs). The rest of the immobilized peroxidase activity, after 10 recurring cycles of HSP/AuNPs was 61% and HSP/AgNPs was 54% . The remaining activity of the immobilized enzyme onto HSP/AgNPs, after storing at 4°C for 6 weeks, was 73% and HSP/AuNPs was 75% of its initial activity. It was revealed that the optimum temperature for the free enzyme and the immobilized enzyme was 50°C and 50–60°C, respectively. For the immobilized enzyme, the optimum pH is 7–7.5, as compared to the optimum pH of free enzyme pH 6.5.
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Affiliation(s)
- Hassan A.H. Alzahrani
- Department of Chemistry, College of Science and Arts at Khulis, University of Jeddah, Jeddah, Saudi Arabia
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11
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Aghamolaei M, Landarani-Isfahani A, Bahadori M, Nori ZZ, Rezaei S, Moghadam M, Tangestaninejad S, Mirkhani V, Mohammadpoor-Baltork I. Preparation and characterization of stable core/shell Fe 3O 4@Au decorated with an amine group for immobilization of lipase by covalent attachment. RSC Adv 2022; 12:5971-5977. [PMID: 35424559 PMCID: PMC8982027 DOI: 10.1039/d1ra08147k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 01/08/2022] [Indexed: 11/21/2022] Open
Abstract
The self-assembly approach was used for amine decoration of core/shell Fe3O4@Au with 4-aminothiophenol. This structure was used for covalent immobilization of lipase using a Ugi 4-component reaction. The amine group on the structure and carboxylic group from lipase can react in the Ugi reaction and a firm and stable covalent bond is created between enzyme and support. The synthesized structure was fully characterized and its activity was explored in different situations. The results showed the pH and temperature stability of immobilized lipase compared to free lipase in a wide range of pH and temperature. Also after 60 days, it showed excellent activity while residual activity for the free enzyme was only 10%. The synthesized structure was conveniently separated using an external magnetic field and reused 6 times without losing the activity of the immobilized enzyme. The self-assembly approach was used for amine decoration of core/shell Fe3O4@Au with 4-aminothiophenol.![]()
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Affiliation(s)
- Marziyeh Aghamolaei
- Catalysis Division, Department of Chemistry, University of Isfahan Isfahan 81746-73441 Iran
| | | | - Mehrnaz Bahadori
- Catalysis Division, Department of Chemistry, University of Isfahan Isfahan 81746-73441 Iran
| | - Zahra Zamani Nori
- Catalysis Division, Department of Chemistry, University of Isfahan Isfahan 81746-73441 Iran
| | - Saghar Rezaei
- Catalysis Division, Department of Chemistry, University of Isfahan Isfahan 81746-73441 Iran
| | - Majid Moghadam
- Catalysis Division, Department of Chemistry, University of Isfahan Isfahan 81746-73441 Iran
| | | | - Valiollah Mirkhani
- Catalysis Division, Department of Chemistry, University of Isfahan Isfahan 81746-73441 Iran
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12
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Almulaiky YQ, Almaghrabi O. Polyphenol Oxidase from Coleus forskohlii: Purification, Characterization, and Immobilization Onto Alginate/ZnO Nanocomposite Materials. Catal Letters 2022. [DOI: 10.1007/s10562-022-03916-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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da Silva RTP, Ribeiro de Barros H, Sandrini DMF, Córdoba de Torresi SI. Stimuli-Responsive Regulation of Biocatalysis through Metallic Nanoparticle Interaction. Bioconjug Chem 2021; 33:53-66. [PMID: 34914373 DOI: 10.1021/acs.bioconjchem.1c00515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The remote control of biocatalytic processes in an extracellular medium is an exciting idea to deliver innovative solutions in the biocatalysis field. With this purpose, metallic nanoparticles (NPs) are great candidates, as their inherent thermal, electric, magnetic, and plasmonic properties can readily be manipulated upon external stimuli. Exploring the unique NP properties beyond an anchoring platform for enzymes brings up the opportunity to extend the efficiency of biocatalysts and modulate their activity through triggered events. In this review, we discuss a set of external stimuli, such as light, electricity, magnetism, and temperature, as tools for the regulation of nanobiocatalysis, including the challenges and perspectives regarding their use. In addition, we elaborate on the use of combined stimuli that create a more refined framework in terms of a multiresponsive system. Finally, we envision this review might instigate researchers in this field of study with a set of promising opportunities in the near future.
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Affiliation(s)
- Rafael T P da Silva
- Instituto de Química, Universidade de São Paulo, São Paulo (SP), 05508-000, Brazil
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14
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Li CL, Ruan HZ, Liu LM, Zhang WG, Xu JZ. Rational reformation of Corynebacterium glutamicum for producing L-lysine by one-step fermentation from raw corn starch. Appl Microbiol Biotechnol 2021; 106:145-160. [PMID: 34870736 DOI: 10.1007/s00253-021-11714-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 11/05/2021] [Accepted: 11/24/2021] [Indexed: 11/27/2022]
Abstract
This article focuses on engineering Corynebacterium glutamicum to produce L-lysine efficiently from starch using combined method of "classical breeding" and "genome breeding." Firstly, a thermo-tolerable L-lysine-producing C. glutamicum strain KT45-6 was obtained after multi-round of acclimatization at high temperature. Then, amylolytic enzymes were introduced into strain KT45-6, and the resultant strains could use starch for cell growth and L-lysine production except the strain with expression of isoamylase. In addition, co-expression of amylolytic enzymes showed a good performance in starch degradation, cell growth and L-lysine production, especially co-expression of α-amylase (AA) and glucoamylase (GA). Moreover, L-lysine yield was increased by introducing AA-GA fusion protein (i.e., strain KT45-6S-5), and finally reached to 23.9 ± 2.3 g/L in CgXIIIPM-medium. It is the first report of an engineered L-lysine-producing strain with maximum starch utilization that may be used as workhorse for producing amino acid using starch as the main feedstock. KEY POINTS: • Thermo-tolerable C. glutamicum was obtained by temperature-induced adaptive evolution. • The fusion order between AA and GA affects the utilization efficiency of starch. • C. glutamicum with starch utilization was constructed by optimizing amylases expression.
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Affiliation(s)
- Chang-Long Li
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800# Lihu Road, WuXi, 214122, People's Republic of China
| | - Hao-Zhe Ruan
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800# Lihu Road, WuXi, 214122, People's Republic of China
| | - Li-Ming Liu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800# Lihu Road, WuXi, 214122, People's Republic of China.,State Key Laboratory of Food Science and Technology, School of Biotechnology, Jiangnan University, 1800# Lihu Road, WuXi, 214122, People's Republic of China
| | - Wei-Guo Zhang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800# Lihu Road, WuXi, 214122, People's Republic of China
| | - Jian-Zhong Xu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800# Lihu Road, WuXi, 214122, People's Republic of China.
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15
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Wang P, Zhang C, Zou Y, Li Y, Zhang H. Immobilization of lysozyme on layer-by-layer self-assembled electrospun nanofibers treated by post-covalent crosslinking. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106999] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Duan X, Zhu Q, Zhang X, Shen Z, Huang Y. Expression, biochemical and structural characterization of high-specific-activity β-amylase from Bacillus aryabhattai GEL-09 for application in starch hydrolysis. Microb Cell Fact 2021; 20:182. [PMID: 34537082 PMCID: PMC8449922 DOI: 10.1186/s12934-021-01649-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/03/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND β-amylase (EC 3.2.1.2) is an exo-enzyme that shows high specificity for cleaving the α-1,4-glucosidic linkage of starch from the non-reducing end, thereby liberating maltose. In this study, we heterologously expressed and characterized a novel β-amylase from Bacillus aryabhattai. RESULTS The amino acid-sequence alignment showed that the enzyme shared the highest sequence identity with β-amylase from Bacillus flexus (80.73%) followed by Bacillus cereus (71.38%). Structural comparison revealed the existence of an additional starch-binding domain (SBD) at the C-terminus of B. aryabhattai β-amylase, which is notably different from plant β-amylases. The recombinant enzyme purified 4.7-fold to homogeneity, with a molecular weight of ~ 57.6 kDa and maximal activity at pH 6.5 and 50 °C. Notably, the enzyme exhibited the highest specific activity (3798.9 U/mg) among reported mesothermal microbial β-amylases and the highest specificity for soluble starch, followed by corn starch. Kinetic analysis showed that the Km and kcat values were 9.9 mg/mL and 116961.1 s- 1, respectively. The optimal reaction conditions to produce maltose from starch resulted in a maximal yield of 87.0%. Moreover, molecular docking suggested that B. aryabhattai β-amylase could efficiently recognize and hydrolyze maltotetraose substrate. CONCLUSIONS These results suggested that B. aryabhattai β-amylase could be a potential candidate for use in the industrial production of maltose from starch.
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Affiliation(s)
- Xuguo Duan
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China.
| | - Qiuyu Zhu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China
| | - Xinyi Zhang
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China
| | - Zhenyan Shen
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China
| | - Yue Huang
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China
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17
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Ashkevarian S, Badraghi J, Mamashli F, Delavari B, Saboury AA. Covalent immobilization and characterization of Rhizopus oryzae lipase on core-shell cobalt ferrite nanoparticles for biodiesel production. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Hussain A, Rafeeq H, Qasim M, Jabeen Z, Bilal M, Franco M, Iqbal HMN. Engineered tyrosinases with broadened bio-catalysis scope: immobilization using nanocarriers and applications. 3 Biotech 2021; 11:365. [PMID: 34290948 PMCID: PMC8257883 DOI: 10.1007/s13205-021-02913-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 06/28/2021] [Indexed: 02/08/2023] Open
Abstract
Enzyme immobilization is a widely used technology for creating more stable, active, and reusable biocatalysts. The immobilization process also improves the enzyme's operating efficiency in industrial applications. Various support matrices have been designed and developed to enhance the biocatalytic efficiency of immobilized enzymes. Given their unique physicochemical attributes, including substantial surface area, rigidity, semi-conductivity, high enzyme loading, hyper catalytic activity, and size-assisted optical properties, nanomaterials have emerged as fascinating matrices for enzyme immobilization. Tyrosinase is a copper-containing monooxygenase that catalyzes the o-hydroxylation of monophenols to catechols and o-quinones. This enzyme possesses a wide range of uses in the medical, biotechnological, and food sectors. This article summarizes an array of nanostructured materials as carrier matrices for tyrosinase immobilization. Following a detailed background overview, various nanomaterials, as immobilization support matrices, including carbon nanotubes (CNTs), carbon dots (CDs), carbon black (CB), nanofibers, Graphene nanocomposite, platinum nanoparticles, nano-sized magnetic particles, lignin nanoparticles, layered double hydroxide (LDH) nanomaterials, gold nanoparticles (AuNPs), and zinc oxide nanoparticles have been discussed. Next, applied perspectives have been spotlights with particular reference to environmental pollutant sensing, phenolic compounds detection, pharmaceutical, and food industry (e.g., cereal processing, dairy processing, and meat processing), along with other miscellaneous applications.
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Affiliation(s)
- Asim Hussain
- grid.414839.30000 0001 1703 6673Department of Biochemistry, Riphah International University, Faisalabad, Pakistan
| | - Hamza Rafeeq
- grid.414839.30000 0001 1703 6673Department of Biochemistry, Riphah International University, Faisalabad, Pakistan
| | - Muhammad Qasim
- grid.411727.60000 0001 2201 6036International Islamic University Islamabad, Islamabad, Pakistan
| | - Zara Jabeen
- grid.414839.30000 0001 1703 6673Department of Biochemistry, Riphah International University, Faisalabad, Pakistan
| | - Muhammad Bilal
- grid.417678.b0000 0004 1800 1941School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai’an, 223003 China
| | - Marcelo Franco
- grid.412324.20000 0001 2205 1915Departament of Exact Sciences and Technology, State University of Santa Cruz, Ilhéus, Brazil
| | - Hafiz M. N. Iqbal
- grid.419886.a0000 0001 2203 4701Tecnologico de Monterrey, School of Engineering and Sciences, 64849 Monterrey, Mexico
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19
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Wei B, Xu H, Cheng L, Yuan Q, Liu C, Gao H, Liang H. Highly Selective Entrapment of His-Tagged Enzymes on Superparamagnetic Zirconium-Based MOFs with Robust Renewability to Enhance pH and Thermal Stability. ACS Biomater Sci Eng 2021; 7:3727-3736. [PMID: 34291917 DOI: 10.1021/acsbiomaterials.1c00780] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal-organic frameworks (MOFs), as a kind of poriferous nanoparticle, are promising candidates for enzyme immobilization to enhance their stability and reusability. However, most MOFs could not specifically immobilize enzymes and regenerate easily, which inevitably leads to serious high consumption and environmental pollution. In this study, renewable and magnetic MOFs were first constructed to specially immobilize His-tagged enzymes from the cell lysates without purification. The immobilized β-glucuronidase exhibited wider pH adaptability and temperature stability. The relative activity of immobilized β-glucuronidase was still maintained at ∼80% after eight cycles. Importantly, after simple treatment, the immobilization capacity of regenerated MOFs after simple treatment was restored to more than 90% in the first three times. The specific magnetic MOFs were proven to be an efficient and renewable platform for one-step immobilization and purification of His-tagged enzymes, showing great potential in industrial applications of nanotechnology and biocatalysis.
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Affiliation(s)
- Bin Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Haichang Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Leiyu Cheng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Changxia Liu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Huiling Gao
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Hao Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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20
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Highly enhanced activity and stability via affinity induced immobilization β-glucosidase from Aspergillus niger onto amino-based silica for the biotransformation of ginsenoside Rb1. J Chromatogr A 2021; 1653:462388. [PMID: 34280789 DOI: 10.1016/j.chroma.2021.462388] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 01/15/2023]
Abstract
In this study, an enzyme immobilization method for the effective biotransformation of ginsenoside Rb1 to impart activity and stability was developed. Using a hydrolase enzyme model, β-glucosidase from Aspergillus niger, immobilization within chemically affinity-linked amino-based silica provided an immobilization efficiency 5.86-fold higher than that of free enzyme. Compared with the free enzyme, the immobilized enzyme functioned optimally at a wider pH range and had higher thermostability. The optimum pH for the free and immobilized enzymes was 5.5. The optimal reaction temperature of the immobilized enzyme was 45 °C, which was 5 °C higher than that of the free enzyme. The Michaelis constant (Km) values before and after immobilization were 0.482 mmol•L-1 and 0.387 mmol•L-1, respectively. The catalytic rate (Kcat) for the immobilized and free enzymes was 22.269 mmol•L-1and 8.800 mmol•L-1, respectively, and the catalytic efficiency (Kcat/Km) activity of the immobilized enzyme was 3.30-fold higher than that of the free enzyme. The immobilized enzyme could preserve 97 % of the activity after 45 cycles of repeated use. The high catalytic activity and significant operational stability are beneficial for industrial applications.
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21
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Bilal M, Qamar SA, Ashraf SS, Rodríguez-Couto S, Iqbal HMN. Robust nanocarriers to engineer nanobiocatalysts for bioprocessing applications. Adv Colloid Interface Sci 2021; 293:102438. [PMID: 34023567 DOI: 10.1016/j.cis.2021.102438] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 02/08/2023]
Abstract
The synergistic integration of bio-catalysis engineering with nanostructured materials, as unique multifunctional carrier matrices, has emerged as a new interface of nanobiocatalysis (NBC). NBC is an emerging innovation that offers significant considerations to expand the designing and fabrication of robust catalysts at the nanoscale with improved catalytic characteristics for multipurpose bioprocessing applications. In addition, nanostructured materials with unique structural, physical, chemical, and functional entities have manifested significant contributions in mimicking the enzyme microenvironment. A fine-tuned enzyme microenvironment with an added-value of NBC offers chemo- regio- and stereo- selectivities and specificities. Furthermore, NBC is growing rapidly and will become a powerful norm in bio-catalysis with much controlled features, such as selectivity, specificity, stability, resistivity, induce activity, reaction efficacy, multi-usability, improved mass transfer efficiency, high catalytic turnover, optimal yield, ease in recovery, and cost-effectiveness. Considering the above critics and unique structural, physicochemical, and functional attributes, herein, we present and discuss advances in NBC and its bioprocessing applications in different fields. Briefly, this review is focused on four parts, i.e., (1) NBC as a drive towards applied nanobiocatalysts (as an introduction with opportunities), (2) promising nanocarriers to develop nanobiocatalysts, (3) applications in the fields of biotransformation, biofuel production, carbohydrate hydrolysis, bio-/nanosensing, detergent formulations, and extraction and purification of value-added compounds, and (4) current challenges, concluding remarks, and future trends.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Sarmad Ahmad Qamar
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Syed Salman Ashraf
- Department of Chemistry, College of Arts and Sciences, Khalifa University, Abu Dhabi, United Arab Emirates; Center for Biotechnology (BTC), Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Susana Rodríguez-Couto
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130 Mikkeli, Finland
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico.
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22
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Singh A, Rai SK, Manisha M, Yadav SK. Immobilized L-ribose isomerase for the sustained synthesis of a rare sugar D-talose. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Mehralipour J, Kermani M. Ultrasonic coupling with electrical current to effective activation of Persulfate for 2, 4 Dichlorophenoxyacetic acid herbicide degradation: modeling, synergistic effect, and a by-product study. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2021; 19:625-639. [PMID: 34150263 PMCID: PMC8172750 DOI: 10.1007/s40201-021-00633-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
In this research work, we investigated the ability of the oxidative degradation of 2, 4-Dichlorophenoxy acetic acid herbicide via ultrasonic-assisted in electro-activation of the persulfate system in the presence of nano-zero valent iron. The effect of experimental parameters such as pH value [4-8], electrical current (0.5-1 A), persulfate concentration (0.25-0.5 mg.l-1), nano zero-valent iron dose (0.05-0.1 mg.l-1), and initial organic pollutant concentration (50-100 mg.l-1) on the ultrasonic-electropersulfate process performance was assessed via central composite design. The combination of ultrasonic waves with the electrochemical process to activation of persulfate showed better efficiency into 2, 4-Dichlorophenoxy acetic acid herbicide degradation compared to their implementation in individual and binary systems. Following optimal conditions (pH = 5.62, 0.80 A applied electrical current, 0.39 mg/L persulfate concentration, 0.07 mg/L nano-zero valent iron, and 50 mg/L 2,4-Dichlorophenoxy acetic acid concentration in 40 min reaction), nearly 91% removal was done. Moreover, the complete removal of 2, 4-Dichlorophenoxy acetic acid, 92% COD, and 88% TOC removal was achieved by this process near 140 min reaction. The scavenging experiment confirmed the role of free oxidizing species in the degradation of 2, 4-Dichlorophenoxy acetic acid during the process. Approximately 50% improved 2, 4-Dichlorophenoxy acetic acid removal in the process against the inclusive efficiency of single mechanisms. The obtained results were fitted to the pseudo-first-order kinetic model with a high correlation coefficient (R2 = 0.96). Five important intermediate products of 2, 4-D oxidation were 2, 4-dichlorophenol (2, 4-DCP), 2, 6-dichlorophenol (2, 6-DCP), 4, 6 dichlororesorcinol (4, 6-DCR), 2-chlorohydroquinone (2-CHQ), and 2-chloro-1, 4-benzoquinone (2-CBQ). In the end, can be employed as a satisfactory advanced oxidation process in high mineralization of 2, 4-D and refractory organic pollutants.
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Affiliation(s)
- Jamal Mehralipour
- Research Center of Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Kermani
- Research Center of Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
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24
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Li Y, Luan P, Zhou L, Xue S, Liu Y, Liu Y, Jiang Y, Gao J. Purification and immobilization of His-tagged organophosphohydrolase on yolk−shell Co/C@SiO2@Ni/C nanoparticles for cascade degradation and detection of organophosphates. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107895] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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25
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Ma C, Wang J, Cao L. Preparation of macroporous hybrid monoliths via iron‐based
MOFs‐stabilized CO
2
‐in‐water
HIPEs
and use for β‐amylase immobilization. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Chao Ma
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region Xinjiang University Urumqi China
| | - Jide Wang
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region Xinjiang University Urumqi China
| | - Liqin Cao
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region Xinjiang University Urumqi China
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26
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Pei X, Li Y, Du C, Yuan T, Fan C, Hong H, Yuan W. Production of L-alanyl-L-glutamine by immobilized Escherichia coli expressing amino acid ester acyltransferase. Appl Microbiol Biotechnol 2020; 104:6967-6976. [PMID: 32594215 DOI: 10.1007/s00253-020-10752-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 06/05/2020] [Accepted: 06/16/2020] [Indexed: 11/25/2022]
Abstract
Production of Ala-Gln by the E. coli expressing α-amino acid ester acyltransferase was a promising technical route due to its high enzyme activity, but the continuous production ability still needs to improve. Therefore, the immobilized E. coli expressing α-amino acid ester acyltransferase was applied for the continuous production of Ala-Gln. Four materials were selected as embedding medium for the whole cell entrapment of recombinant bacteria. Calcium alginate beads were found to be the most proper entrapment carrier for production of Ala-Gln. The temperature, pH, and repeatability of the immobilized cell were compared with free cells. Results showed that immobilization cell could maintain a wider range of temperature/pH and better stability than free cell (20-35 °C/pH 8.0-9.0, and 25 °C/pH 8.5, respectively). On this basis, continuous production strategy was put forward by filling the immobilized cell in the tubular reactor with multiple control conditions. The Ala-Gln by immobilization cell achieved the productivity of 2.79 mg/(min*mL-CV) without intermittent time. Consequently, these findings suggest that the immobilization technique has potential applications in the production of Ala-Gln by biotechnological method. KEY POINTS: • Immobilization helps to achieve high efficiency production of Ala-Gln. • Immobilized cells have better stability than free cells. • Sodium alginate is the most suitable immobilized material.
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Affiliation(s)
- Xuze Pei
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Yimin Li
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Cong Du
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Tangguo Yuan
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Chao Fan
- Innobio Corporation Limited, Dalian, 116600, China
| | - Hao Hong
- Innobio Corporation Limited, Dalian, 116600, China
| | - Wenjie Yuan
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China.
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27
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Alatawi FS, Elsayed NH, Monier M. Immobilization of Horseradish Peroxidase on Modified Nylon‐6 Fibers. ChemistrySelect 2020. [DOI: 10.1002/slct.202000818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Fatema S. Alatawi
- Biochemistry DepartmentFaculty of ScienceUniversity of Tabuk Tabuk 71421 Saudi Arabia
| | - Nadia H. Elsayed
- Department of ChemistryUniversity college-AlwajhUniversity of Tabuk Tabuk Saudi Arabia
- Department of Polymers and PigmentsNational Research Center, Dokki Cairo 12311 Egypt
| | - Mohammed Monier
- Chemistry DepartmentFaculty of ScienceMansoura University Mansoura Egypt
- Chemistry DepartmentFaculty of ScienceTaibah University Yanbu Branch Yanbu El-Bahr Saudi Arabia
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28
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Chen G, Shu H, Wang L, Bashir K, Wang Q, Cui X, Li X, Luo Z, Chang C, Fu Q. Facile one-step targeted immobilization of an enzyme based on silane emulsion self-assembled molecularly imprinted polymers for visual sensors. Analyst 2020; 145:268-276. [PMID: 31746832 DOI: 10.1039/c9an01777a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Immobilized enzymes play significant roles in many practical applications. However, the enzymes need to be purified before immobilization by conventional immobilizing methods, and the purification process is expensive, laborious, complicated and results in a decrease of the enzymatic activity. So, we present a novel method by a facile one-step targeted immobilization of an enzyme without a purification process from complex samples. For this purpose, a novel molecularly imprinted polymer was prepared via a silane emulsion self-assembly method using boric acid-modified Fe3O4 nanoparticles as magnetic nuclei, horseradish peroxidase as a template, 3-aminopropyltriethoxysilane as a functional monomer and tetraethyl orthosilicate as a crosslinking agent. The molecularly imprinted polymers were characterized using a scanning electron microscope, X-ray photoelectron spectroscope, vibrating sample magnetometer and X-ray diffractometer. The as-prepared and characterized materials were employed to immobilize horseradish peroxidase from a crude extract of horseradish. Moreover, the immobilized horseradish peroxidase was employed to develop visual sensors for the detection of glucose and sarcosine. This study demonstrated that the molecularly imprinted polymers prepared via the silane emulsion self-assembly method can facilely immobilize horseradish peroxidase from a crude extract of horseradish without any purification process. The developed visual method based on the immobilized horseradish peroxidase shows great potential applications for the visual detection of glucose and sarcosine.
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Affiliation(s)
- Guoning Chen
- School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China.
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29
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Li LH, Li XY, Hong Y, Jiang MR, Lu SL. Use of microalgae for the treatment of black and odorous water: Purification effects and optimization of treatment conditions. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101851] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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30
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Immobilization of fenugreek β-amylase onto functionalized graphene quantum dots (GQDs) using Box-Behnken design: Its biochemical, thermodynamic and kinetic studies. Int J Biol Macromol 2020; 144:170-182. [DOI: 10.1016/j.ijbiomac.2019.12.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 11/14/2019] [Accepted: 12/04/2019] [Indexed: 11/18/2022]
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31
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Yadav A, Agrawal DC, Srivastava RR, Srivastava A, Kayastha AM. Nanoparticles decorated carbon nanotubes as novel matrix: A comparative study of influences of immobilization on the catalytic properties of Lensculinarisβ-galactosidase (Lcβ-gal). Int J Biol Macromol 2020; 144:770-780. [PMID: 31730953 DOI: 10.1016/j.ijbiomac.2019.09.194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 10/25/2022]
Abstract
In the present study, Multiwalled carbon nanotubes (MWCNT) decorated with two different nanoparticles namely tungsten disulfide (WS2) and tin oxide (SnO2), nanocomposites (NCs) were synthesized via hydrothermal method. Spectroscopic studies showed that both synthesized NCs possess nearly same functional groups but MWCNT-SnO2 NCs are rich in O-functional group. Microscopic studies revealed that both NCs have different morphological microstructure. Lens culinaris β-galactosidase (Lcβ-gal) was immobilized using glutaraldehyde cross-linker resulted in immobilization efficiency of 91.5% and 88% with MWCNT-WS2 and MWCNT-SnO2 NCs, respectively. Remarkable increase in rate of hydrolysis of whey lactose has been observed with both NCs i.e. Lcβ-gal immobilized MWCNT-WS2 hydrolyzes the 97% whey lactose in 1.5 h while MWCNT-SnO2 showed maximum 92% of whey hydrolysis in 2 h at optimum conditions. Both nanobiocatalyst could serve as a promising candidates for dairy industries and would offer a potential platform for enzyme based biosensor fabrication.
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Affiliation(s)
- Anjali Yadav
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Dinesh Chand Agrawal
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Rohit Ranjan Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anchal Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Arvind M Kayastha
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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32
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Agrawal DC, Yadav A, Singh VK, Srivastava A, Kayastha AM. Immobilization of fenugreek β-amylase onto functionalized tungsten disulfide nanoparticles using response surface methodology: Its characterization and interaction with maltose and sucrose. Colloids Surf B Biointerfaces 2020; 185:110600. [PMID: 31704608 DOI: 10.1016/j.colsurfb.2019.110600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/20/2019] [Accepted: 10/17/2019] [Indexed: 10/25/2022]
Abstract
In this communication, fenugreek β-amylase was immobilized onto functionalized tungsten disulfide nanoparticles through cross-linker glutaraldehyde and successful immobilization was confirmed by SEM, AFM and FTIR spectroscopy. To make the process economical and efficient, optimization of independent variables was carried out using Box-Behnken design of response surface methodology. Approximately similar predicted (85.6%) and experimental (84.2%) immobilization efficiency revealed that the model is suitable for design of space. Optimum temperature was calculated to be 60 °C. After immobilization, an increased Km (2.12 times) and a decreased Vmax (0.58 times), indicated inaccessibility of active site residues to the substrate. The immobilized enzyme retained 77% relative activity after 10 uses whereas 40% residual activity was obtained after 120 days. An increased half-life with concomitantly decreased kinetic rate constant revealed that the immobilized enzyme is more stable at a higher temperature and the process followed first-order kinetics (R2 > 0.93). The limit of detection for maltose and sucrose fluorescence biosensor was found to be 0.052 and 0.096 mM, respectively. Thermodynamic parameters such as changes in Gibbs free energy (ΔG < 0), enthalpy (ΔH > 0) and entropy (ΔS >0) revealed that the process is spontaneous and endothermic, driven by hydrophobic interactions. Thermo-stability data at higher temperature for the immobilized enzyme makes it a suitable candidate for industrial applications in the production of maltose in food and pharmaceutical industries. Furthermore, fluorescence biosensor could be used to detect and quantify maltose and sucrose to maintain the quality of industrial products.
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Affiliation(s)
- Dinesh Chand Agrawal
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anjali Yadav
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Vijay K Singh
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Anchal Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Arvind M Kayastha
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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Shakerian F, Zhao J, Li SP. Recent development in the application of immobilized oxidative enzymes for bioremediation of hazardous micropollutants - A review. CHEMOSPHERE 2020; 239:124716. [PMID: 31521938 DOI: 10.1016/j.chemosphere.2019.124716] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/11/2019] [Accepted: 08/29/2019] [Indexed: 05/05/2023]
Abstract
During the past several years, abundant progresses has been made in the development of immobilized oxidative enzymes with focus on finding new support materials, improving the immobilization methods and their applications. Nowadays, immobilized oxidative enzymes are broadly accepted as a green way to face the challenge of high amounts of micropollutants in nature. Among all oxidative enzymes, laccases and horseradish peroxidase were used frequently in recent years as they are general oxidative enzymes with ability to oxidize various types of compounds. Immobilized laccase or horseradish peroxidase are showed better stability, and reusability as well as easy separation from reaction mixture that make them more favorable and economic in compared to free enzymes. However, additional improvements are still essential such as: development of the new materials for immobilization with higher capacity, easy preparation, and cheaper price. Moreover, immobilization methods are still need improving to become more efficient and avoid enzyme wasting during immobilization and enzyme leakage through working cycles.
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Affiliation(s)
- Farid Shakerian
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jing Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Shao-Ping Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
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34
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Mass transfer with reaction kinetics of the biocatalytic membrane reactor using a fouled covalently immobilised enzyme layer (α–CGTase–CNF layer). Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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35
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Yadav A, Pandey SK, Agrawal DC, Mishra H, Srivastava A, Kayastha AM. Carbon nanotubes molybdenum disulfide 3D nanocomposite as novel nanoscaffolds to immobilize Lens culinaris β-galactosidase (Lsbgal): Robust stability, reusability, and effective bioconversion of lactose in whey. Food Chem 2019; 297:125005. [DOI: 10.1016/j.foodchem.2019.125005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 06/06/2019] [Accepted: 06/12/2019] [Indexed: 11/29/2022]
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36
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Abdollahi K, Yazdani F, Panahi R. Fabrication of the robust and recyclable tyrosinase-harboring biocatalyst using ethylenediamine functionalized superparamagnetic nanoparticles: nanocarrier characterization and immobilized enzyme properties. J Biol Inorg Chem 2019; 24:943-959. [PMID: 31359184 DOI: 10.1007/s00775-019-01690-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 07/13/2019] [Indexed: 01/25/2023]
Abstract
Immobilized tyrosinase onto the functionalized nanoparticles with the ability to be reused easily in different reaction cycles to degrade phenolic compounds is known as a substantial challenge, which can be overcome through surface modification of the particles via proper chemical groups. Herein, the synthesis and silica coating of superparamagnetic nanoparticles using a simple procedure as well as their potential for tyrosinase immobilization were demonstrated. Therefore, N-[3-(trimethoxysilyl)propyl]ethylenediamine was used to functionalize the silica-coated nanoparticles with amine groups. Then, the ethylenediamine functionalized magnetic nanoparticles (EMNPs) were suspended in a solution containing tetrahydrofuran and cyanuric chloride (as an activating agent) to modify nanocarriers. To immobilize enzyme, a mixture of tyrosinase and cyanuric chloride functionalized magnetic nanoparticle (Cyc/EMNPs) was shaken at room temperature. The particles were characterized by EDX, TGA, SEM, FTIR, and TEM. As a result, the successful functionalization of the magnetic nanoparticles and covalent attachment of tyrosinase onto the Cyc/EMNPs were confirmed. The fabricated nano-biocatalyst particles were semi-spherical in shape. The immobilized tyrosinase (Ty-Cyc/EMNPs) exhibited remarkable reusability of six consecutive reaction cycles while no considerable loss of activity was observed for the first three cycles. Moreover, the excellent stability of the biocatalyst at different temperatures and pHs was proved. The Ty-Cyc/EMNPs with interesting features are promising for practical applications in biosensor development and wastewater treatment.
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Affiliation(s)
- Kourosh Abdollahi
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P.O. Box 14335-186, Tehran, Iran.,School of Science, RMIT University, Bundoora West Campus, Melbourne, VIC, 3083, Australia
| | - Farshad Yazdani
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P.O. Box 14335-186, Tehran, Iran.
| | - Reza Panahi
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P.O. Box 14335-186, Tehran, Iran
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Sharifi M, Karim AY, Mustafa Qadir Nanakali N, Salihi A, Aziz FM, Hong J, Khan RH, Saboury AA, Hasan A, Abou-Zied OK, Falahati M. Strategies of enzyme immobilization on nanomatrix supports and their intracellular delivery. J Biomol Struct Dyn 2019; 38:2746-2762. [DOI: 10.1080/07391102.2019.1643787] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Majid Sharifi
- Faculty of Advanced Sciences and Technology, Department of Nanotechnology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Abdulkarim Yasin Karim
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
- Research Center, Knowledge University, Erbil, Kurdistan Region, Iraq
| | - Nadir Mustafa Qadir Nanakali
- Department of Biology, College of Science, Cihan University, Erbil, Iraq
- Department of Biology, College of Education, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
- Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Jun Hong
- School of Life Sciences, Henan University, China
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Ali Akbar Saboury
- Inistitute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
- Center of Excellence in Biothermodynamics, University of Tehran, Tehran, Iran
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha, Qatar
- Biomedical Research Centre (BRC), Qatar University, Doha, Qatar
| | - Osama K. Abou-Zied
- Department of Chemistry, Faculty of Science,Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Mojtaba Falahati
- Faculty of Advanced Sciences and Technology, Department of Nanotechnology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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38
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Li J, Chen X, Xu D, Pan K. Immobilization of horseradish peroxidase on electrospun magnetic nanofibers for phenol removal. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 170:716-721. [PMID: 30580166 DOI: 10.1016/j.ecoenv.2018.12.043] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 12/12/2018] [Accepted: 12/15/2018] [Indexed: 05/25/2023]
Abstract
In this study, Fe3O4/polyacrylonitrile (PAN) magnetic nanofibers (MNFs) were fabricated by electrospinning method to immobilize the horseradish peroxidase (HRP), making which a complex platform for phenol removal application. Results indicated that, the average diameter of MNFs was about 200-400 nm and the maximum saturation magnetic induction was 19.03 emu/g. Compared with the free HRP, the modified HRP showed no change in optimum pH, but showed higher catalytic activity. Moreover, HRP immobilized MNFs (H-MNFs) with 40% Fe3O4 nanoparticles loading had the lowest HRP loading, but had the highest relative activity, because of the magnetic synergy with the presence of MNPs. Subsequently, the 40% H-MNFs was used for the remediation of phenol wastewater, achieved the removal efficiency of phenol to 85% in the first round use, and remained 52% of efficiency after 5 recycles using. It was expected that the H-MNFs could be a potential application in wastewater treatment such as phenol removal.
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Affiliation(s)
- Jinlong Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing 100048, PR China
| | - Xiangyang Chen
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Dongfeng Xu
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Kai Pan
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
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39
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Enzymatic hydrolysis of native granular starches by a new β-amylase from peanut (Arachis hypogaea). Food Chem 2019; 276:583-590. [DOI: 10.1016/j.foodchem.2018.10.058] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 10/10/2018] [Accepted: 10/10/2018] [Indexed: 12/20/2022]
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40
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Mohammadi M, Rezaei Mokarram R, Ghorbani M, Hamishehkar H. Inulinase immobilized gold-magnetic nanoparticles as a magnetically recyclable biocatalyst for facial and efficient inulin biotransformation to high fructose syrup. Int J Biol Macromol 2019; 123:846-855. [DOI: 10.1016/j.ijbiomac.2018.11.160] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/15/2018] [Accepted: 11/16/2018] [Indexed: 01/31/2023]
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41
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Duan X, Shen Z, Zhang X, Wang Y, Huang Y. Production of recombinant beta-amylase of Bacillus aryabhattai. Prep Biochem Biotechnol 2019; 49:88-94. [PMID: 30636502 DOI: 10.1080/10826068.2018.1536987] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this study, the effects of carbon source, nitrogen source, and metal ions on cell growth and Bacillus aryabhattai β-amylase production in recombinant Brevibacillus choshinensis were investigated. The optimal medium for β-amylase production, containing glucose (7.5 g·L-1), pig bone peptone (40.0 g·L-1), Mg2+ (0.05 mol·L-1), and trace metal elements, was determined through single-factor experiments in shake flasks. When cultured in the optimized medium, the β-amylase yield reached 925.4 U mL-1, which was 7.2-fold higher than that obtained in the initial medium. Besides, a modified feeding strategy was proposed and applied in a 3-L fermentor fed with glucose, which achieved a dry cell weight of 15.4 g L-1. Through this cultivation approached 30 °C with 0 g·L-1 initial glucose concentration, the maximum β-amylase activity reached 5371.8 U mL-1, which was 41.7-fold higher than that obtained with the initial medium in shake flask.
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Affiliation(s)
- Xuguo Duan
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
| | - Zhenyan Shen
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
| | - Xinyi Zhang
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
| | - Yaosong Wang
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
| | - Yue Huang
- a College of Light Industry and Food Engineering , Nanjing Forestry University , Nanjing , Jiangsu , China
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42
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43
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Monajati M, Tamaddon A, Yousefi G, Abolmaali SS, Dinarvand R. Applications of RAFT polymerization for chemical and enzymatic stabilization of l-asparaginase conjugates with well-defined poly(HPMA). NEW J CHEM 2019. [DOI: 10.1039/c9nj01211g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
HPMA RAFT polymerization and activation with variable linker chemistry for stabilization of l-asparaginase against pH, temperature, freeze–thaw and proteolytic stresses.
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Affiliation(s)
- Maryam Monajati
- Department of Pharmaceutical Nanotechnology
- Faculty of Pharmacy
- Tehran University of Medical Sciences
- Tehran
- Iran
| | - AliMohammad Tamaddon
- Center for Nanotechnology in Drug Delivery
- Shiraz University of Medical Sciences
- Shiraz 71345
- Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy
| | - Gholamhossein Yousefi
- Center for Nanotechnology in Drug Delivery
- Shiraz University of Medical Sciences
- Shiraz 71345
- Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy
| | - Samira Sadat Abolmaali
- Center for Nanotechnology in Drug Delivery
- Shiraz University of Medical Sciences
- Shiraz 71345
- Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy
| | - Rassoul Dinarvand
- Department of Pharmaceutical Nanotechnology
- Faculty of Pharmacy
- Tehran University of Medical Sciences
- Tehran
- Iran
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44
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2,4-Dichlorophenoxyactic acid herbicide removal from water using chitosan. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3604-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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45
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Immobilization of trypsin onto Fe3O4@SiO2 –NH2 and study of its activity and stability. Colloids Surf B Biointerfaces 2018; 170:553-562. [DOI: 10.1016/j.colsurfb.2018.06.022] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/12/2018] [Accepted: 06/14/2018] [Indexed: 11/30/2022]
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46
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Chen Q, Liu D, Wu C, Yao K, Li Z, Shi N, Wen F, Gates ID. Co-immobilization of cellulase and lysozyme on amino-functionalized magnetic nanoparticles: An activity-tunable biocatalyst for extraction of lipids from microalgae. BIORESOURCE TECHNOLOGY 2018; 263:317-324. [PMID: 29753933 DOI: 10.1016/j.biortech.2018.04.071] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
An activity-tunable biocatalyst for Nannochloropsis sp. cell-walls degradation was prepared by co-immobilization of cellulase and lysozyme on the surface of amino-functionalized magnetic nanoparticles (MNPs) employing glutaraldehyde. The competition between cellulase and lysozyme during immobilization was caused by the limited active sites of the MNPs. The maximum recovery of activities (cellulase: 78.9% and lysozyme: 69.6%) were achieved due to synergistic effects during dual-enzyme co-immobilization. The thermal stability in terms of half-life of the co-immobilized enzymes was three times higher than that in free form and had higher catalytic efficiency for hydrolysis of cell walls. Moreover, the co-immobilized enzymes showed greater thermal stability and wider pH tolerance than free enzymes under harsh conditions. Furthermore, the co-immobilized enzymes retained up to 60% of the residual activity after being recycled 6 times. This study provides a feasible approach for the industrialization of enzyme during cell-walls disruption and lipids extraction from Nannochloropsis sp.
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Affiliation(s)
- Qingtai Chen
- State Key Laboratory of Heavy Oil Processing, and College of Chemical Engineering, China University of Petroleum, Qingdao, Shandong 266580, China
| | - Dong Liu
- State Key Laboratory of Heavy Oil Processing, and College of Chemical Engineering, China University of Petroleum, Qingdao, Shandong 266580, China.
| | - Chongchong Wu
- Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
| | - Kaisheng Yao
- School of Chemical Engineering and Pharmaceutics, Henan University of Science and Technology, Luoyang, Henan 471003, China
| | - Zhiheng Li
- State Key Laboratory of Heavy Oil Processing, and College of Chemical Engineering, China University of Petroleum, Qingdao, Shandong 266580, China
| | - Nan Shi
- State Key Laboratory of Heavy Oil Processing, and College of Chemical Engineering, China University of Petroleum, Qingdao, Shandong 266580, China
| | - Fushan Wen
- College of Science, China University of Petroleum, Qingdao, Shandong 266580, China
| | - Ian D Gates
- Department of Chemical and Petroleum Engineering, University of Calgary, T2N 1N4 Calgary, Alberta, Canada
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47
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Bolibok P, Roszek K, Wiśniewski M. Chemical and Biochemical Approach to Make a Perfect Biocatalytic System on Carbonaceous Matrices. Methods Enzymol 2018; 609:221-245. [PMID: 30244791 DOI: 10.1016/bs.mie.2018.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Enzymatic processes are widely used in food industry, pharmacy, cosmetic and household chemistry, and medicine. However, the common and efficient application of the biological catalysts is limited by a number of factors that influence enzymes activity. One of the most frequent methods to improve the biocatalysts' properties is immobilization. This chapter presents a recent overview of our attempts to obtain the perfect biocatalytic system. The experimental approach, proposed in this chapter, includes the critical points like: the choice of adequate immobilization method, most suitable carrier, determination of enzyme kinetic parameters, stability, and toxicity of obtained systems. As carbon materials including graphene-derived materials offer unique properties and a plenty of different modifications, these parameters seem to be of decisive importance to understand chemistry of complex systems. Consideration of all the mentioned requirements lead us to the conclusion that graphene oxide could be the best candidate for support in perfect biocatalytic systems.
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Affiliation(s)
- Paulina Bolibok
- Faculty of Chemistry, Physicochemistry of Carbon Materials Research Group, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Katarzyna Roszek
- Department of Biochemistry, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Marek Wiśniewski
- Faculty of Chemistry, Physicochemistry of Carbon Materials Research Group, Nicolaus Copernicus University in Toruń, Toruń, Poland.
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48
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Sheng W, Xi Y, Zhang L, Ye T, Zhao X. Enhanced activity and stability of papain by covalent immobilization on porous magnetic nanoparticles. Int J Biol Macromol 2018; 114:143-148. [PMID: 29567500 DOI: 10.1016/j.ijbiomac.2018.03.088] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/16/2018] [Accepted: 03/18/2018] [Indexed: 12/11/2022]
Abstract
Papain enzyme was successfully immobilized by covalent bonding onto biocompatible Fe3O4/SF nanoparticles, which were prepared with the soft template of silk fibroin (SF). The optimized immobilization condition is pH6.0, hydrolysis time of 60min, and an enzyme/support ratio of 10.0mg/g. Compared with free papain, the immobilized papain exhibits a high effective activity, broader working pH and temperature. This immobilized papain can be separated from the solution by the external magnetic field for cyclic utilization, and 70% of initial activity was retained after eight consecutive operations while completely loss of proteolytic activity for the free papain. Furthermore, the immobilized papain maintained 85% of their initial activity after being stored for 28days. Kinetic parameters, maximum reaction rate (Vmax) and Michaelis constant (Km) of immobilized papain, were determined as 4.95mg/l·min and 0.23mg/ml, larger than its free counterpart. All the results above indicated that the immobilized papain onto magnetic Fe3O4/SF nanoparticles would have potential industrial and medical applications.
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Affiliation(s)
- Weiqin Sheng
- Laboratory for Nanoelectronics and Nano Devices, School of Electronic Information, Hangzhou Dianzi University, Hangzhou 310018, PR China
| | - Yinyin Xi
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Luting Zhang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Ting Ye
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
| | - Xueqin Zhao
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, PR China.
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49
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Das R, Kayastha AM. An antioxidant rich novel β-amylase from peanuts (Arachis hypogaea): Its purification, biochemical characterization and potential applications. Int J Biol Macromol 2018; 111:148-157. [PMID: 29305882 DOI: 10.1016/j.ijbiomac.2017.12.130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/15/2017] [Accepted: 12/25/2017] [Indexed: 12/19/2022]
Abstract
β-Amylase from un-germinated seeds of peanut (Arachis hypogaea) was purified to apparent electrophoretic homogeneity with final purification fold of 205 and specific activity of 361μmol/min/mg protein. The enzyme was purified employing simple purification techniques for biochemical characterization. The purified enzyme was identified as β-amylase with Mr of 31kDa. The enzyme displayed its optimum catalytic activity at pH5.0 and 60°C with activation energy of 4.5kcal/mol and Q10 1.2. The enzyme displayed Km and Vmax values, for soluble potato starch of 1.28mg/mL and 363.63μmol/min/mg, respectively. Thermal inactivation of β-amylase at 65°C resulted into first-order kinetics with rate constant 0.0126min-1 and t½ 55min. The enzyme was observed to act on native granular potato starch, which could minimize the high cost occurring from solubilization of starch in industries. Enzyme fractions scavenge 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical, indicating its antioxidative nature. In addition, the purified β-amylase was successfully utilized for the improvement of antioxidant potential of wheat. These findings suggest that β-amylase from peanuts have potential application in food and pharmaceutical industries.
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Affiliation(s)
- Ranjana Das
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Arvind M Kayastha
- School of Biotechnology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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50
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Synthesis, Characterization, and Applications of Nanographene-Armored Enzymes. Methods Enzymol 2018; 609:83-142. [DOI: 10.1016/bs.mie.2018.05.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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