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Papadopoulou AA, Tzani A, Polydera AC, Katapodis P, Voutsas E, Detsi A, Stamatis H. Green biotransformations catalysed by enzyme-inorganic hybrid nanoflowers in environmentally friendly ionic solvents. Environ Sci Pollut Res Int 2018; 25:26707-26714. [PMID: 28597383 DOI: 10.1007/s11356-017-9271-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 05/11/2017] [Indexed: 06/07/2023]
Abstract
Environmentally friendly ionic solvents such as (a) ionic liquids (ILs) formulated with hydroxyl ammonium cations and various carboxylic acid anions and (b) choline chloride or ethyl ammonium chloride-based deep eutectic solvents (DES) were tested as media for hydrolytic and synthetic reactions catalysed by lipase-inorganic hybrid nanoflowers. The nature of ionic solvents used has a significant effect on the hydrolytic and synthetic activity of the immobilized lipase, as well as on its stability and reusability. In choline chloride-based DES, the activity and especially the operational stability of the biocatalyst are significantly increased compared to those observed in buffer, indicating the potential application of these solvents as green media for various biocatalytic processes of industrial interest.
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Affiliation(s)
- Athena A Papadopoulou
- Department of Biological Applications & Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110, Ioannina, Greece
| | - Andromachi Tzani
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780, Athens, Greece
| | - Angeliki C Polydera
- Department of Biological Applications & Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110, Ioannina, Greece
| | - Petros Katapodis
- Department of Biological Applications & Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110, Ioannina, Greece
| | - Epaminondas Voutsas
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780, Athens, Greece
| | - Anastasia Detsi
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780, Athens, Greece
| | - Haralambos Stamatis
- Department of Biological Applications & Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110, Ioannina, Greece.
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Papadopoulou AA, Efstathiadou E, Patila M, Polydera AC, Stamatis H. Deep Eutectic Solvents as Media for Peroxidation Reactions Catalyzed by Heme-Dependent Biocatalysts. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04867] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Athena A. Papadopoulou
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
| | - Evdoxia Efstathiadou
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
| | - Michaela Patila
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
| | - Angeliki C. Polydera
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
| | - Haralambos Stamatis
- Department of Biological
Applications and Technologies, Laboratory of Biotechnology, University of Ioannina, University Campus, 45110 Ioannina, Greece
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Papadopoulou AA, Katsoura MH, Chatzikonstantinou A, Kyriakou E, Polydera AC, Tzakos AG, Stamatis H. Enzymatic hybridization of α-lipoic acid with bioactive compounds in ionic solvents. Bioresour Technol 2013; 136:41-8. [PMID: 23567667 DOI: 10.1016/j.biortech.2013.02.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 02/17/2013] [Accepted: 02/20/2013] [Indexed: 06/02/2023]
Abstract
The lipase-catalyzed molecular hybridization of α-lipoic acid (LA) with bioactive compounds pyridoxine, tyrosol and tyramine was performed in ionic solvents and deep eutectic solvents. The biocatalytic reactions were catalyzed by Candida antarctica lipase B immobilized onto various functionalized multi-walled carbon nanotubes (f-CNTs-CaLB), as well as by commercial Novozym 435. The use of f-CNTs-CaLB leads, in most cases, to higher conversion yields as compared to Novozym 435. The nature and ion composition of ionic solvents affect the performance of the biocatalytic process. The highest conversion yield was observed in (mtoa)NTf2. The high enzyme stability and the relatively low solubility of substrates in specific media account for the improved biocatalytic synthesis of molecular hybrids of LA. Principal component analysis was used to screen for potential lipoxygenase inhibitors. In vitro studies showed that the synthesized compounds exhibit up to 10-fold increased inhibitory activity on lipoxygenase mediated lipid peroxidation as compared to parent molecules.
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Affiliation(s)
- Athena A Papadopoulou
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, University Campus, 45110 Ioannina, Greece
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