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Guajardo N, Schrebler RA. Upstream and Downstream Bioprocessing in Enzyme Technology. Pharmaceutics 2023; 16:38. [PMID: 38258049 PMCID: PMC10818583 DOI: 10.3390/pharmaceutics16010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/07/2023] [Accepted: 12/10/2023] [Indexed: 01/24/2024] Open
Abstract
The development of biotransformation must integrate upstream and downstream processes. Upstream bioprocessing will influence downstream bioprocessing. It is essential to consider this because downstream processes can constitute the highest cost in bioprocessing. This review comprehensively overviews the most critical aspects of upstream and downstream bioprocessing in enzymatic biocatalysis. The main upstream processes discussed are enzyme production, enzyme immobilization methodologies, solvent selection, and statistical optimization methodologies. The main downstream processes reviewed in this work are biocatalyst recovery and product separation and purification. The correct selection and combination of upstream and downstream methodologies will allow the development of a sustainable and highly productive system.
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Affiliation(s)
- Nadia Guajardo
- Departamento de Ingeniería Química y Bioprocesos, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
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Kristanto T, Tiwikrama AH, Lee MJ. Vapor-liquid equilibrium phase behavior of binary systems of carbon dioxide with dimethyl adipate or monomethyl adipate. J Supercrit Fluids 2023. [DOI: 10.1016/j.supflu.2023.105856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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3
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Wu M, Hu J, Wu Y, Tang Y, Zhang Y, Guan Y, Lou Z, Yu Z, Yu J. Enhanced dechlorination of an enzyme-catalyzed electrolysis system by ionic liquids: Electron transfer, enzyme activity and dichloromethane diffusion. CHEMOSPHERE 2021; 281:130913. [PMID: 34029962 DOI: 10.1016/j.chemosphere.2021.130913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 06/12/2023]
Abstract
Enzyme-catalyzed electrolysis system (EES) is a promising technique for the efficient dechlorination of pollutants. In this study, ionic liquids (ILs) was first introduced to enhance the dichloromethane dechlorination performance of an EES. An imidazole-based IL, 1-ethyl-3-methylimidazole tetrafluoroborate ([EMIM][BF4]), was chosen due to its excellent performance on dechlorination enhancement than other three ILs. The cyclic voltammograms with different scan rates shows that the presence of IL increased the apparent electron transfer rate constant (ks) from 0.008 to 0.013 s-1. The calculated surface electroactive species concentration (τc) also increased from 7.8 × 10-9 to 9.5 × 10-9 mol cm-2. Electrochemical impedance spectroscopy analysis illustrates that the IL mainly weakened the interfacial resistance between electrolyte and cathode to accelerate the electron communication in the EES. The introduction of IL facilitated the regeneration of reduced glutathione from oxidized glutathione, whereas inhibited the catalytic activity of dehalogenase via the disruption of secondary structure shown in circular dichroism spectra. The presence of IL was also facilitated the dichloromethane diffusion from electrolyte to cathode. The mass transfer rate constants of dichloromethane (km,d) increased by 6.9 times after the addition of IL. The optimum volume concentration, pH value, reaction temperature and applied voltage were 20%, 7, 35 °C and -0.8 V vs Ag/AgCl, respectively. The study is helpful to understand the promotion mechanism of IL on the dechlorination performance of EES when it is adopted as a treatment technique.
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Affiliation(s)
- Meng Wu
- College of Environment, Zhejiang University of Technology, 18 Chao-wang Road, Hangzhou, 310014, China
| | - Jun Hu
- College of Environment, Zhejiang University of Technology, 18 Chao-wang Road, Hangzhou, 310014, China
| | - Yuexin Wu
- Zhejiang Haihe Environmental Technology Co., Ltd., 1389 Danxi Road, Jinhua, 321000, China
| | - Yuwei Tang
- College of Environment, Zhejiang University of Technology, 18 Chao-wang Road, Hangzhou, 310014, China
| | - Yan Zhang
- College of Environment, Zhejiang University of Technology, 18 Chao-wang Road, Hangzhou, 310014, China
| | - Yanhong Guan
- College of Environment, Zhejiang University of Technology, 18 Chao-wang Road, Hangzhou, 310014, China
| | - Zimo Lou
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, 18 Chao-wang Road, Hangzhou, 310014, China
| | - Zhiliang Yu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chao-wang Road, Hangzhou, 310014, China
| | - Jianming Yu
- College of Environment, Zhejiang University of Technology, 18 Chao-wang Road, Hangzhou, 310014, China.
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Chemo-Enzymatic Baeyer-Villiger Oxidation Facilitated with Lipases Immobilized in the Supported Ionic Liquid Phase. MATERIALS 2021; 14:ma14133443. [PMID: 34206178 PMCID: PMC8269471 DOI: 10.3390/ma14133443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 06/18/2021] [Accepted: 06/19/2021] [Indexed: 12/27/2022]
Abstract
A novel method for chemo-enzymatic Baeyer–Villiger oxidation of cyclic ketones in the presence of supported ionic liquid-like phase biocatalyst was designed. In this work, multi-walled carbon nanotubes were applied as a support for ionic liquids which were anchored to nanotubes covalently by amide or imine bonds. Next, lipases B from Candida antarctica, Candida rugosa, or Aspergillus oryzae were immobilized on the prepared materials. The biocatalysts were characterized using various techniques, like thermogravimetry, IR spectroscopy, XPS, elemental analysis, and SEM-EDS microscopy. In the proposed approach, a biocatalyst consisting of a lipase as an active phase allowed the generation of peracid in situ from the corresponding precursor and a green oxidant–hydrogen peroxide. The activity and stability of the obtained biocatalysts in the model oxidation of 2-adamantanone were demonstrated. High conversion of substrate (92%) was achieved under favorable conditions (toluene: n-octanoic acid ratio 1:1 = v:v, 35% aq. H2O2 2 eq., 0.080 g of biocatalyst per 1 mmol of ketone at 20 °C, reaction time 4 h) with four reaction cycles without a drop in its activity. Our ‘properties-by-design’ approach is distinguished by its short reaction time at low temperature and higher thermal stability in comparison with other biocatalysts presented in the literature reports.
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Szelwicka A, Erfurt K, Jurczyk S, Boncel S, Chrobok A. Outperformance in Acrylation: Supported D-Glucose-Based Ionic Liquid Phase on MWCNTs for Immobilized Lipase B from Candida antarctica as Catalytic System. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3090. [PMID: 34200059 PMCID: PMC8200216 DOI: 10.3390/ma14113090] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 12/17/2022]
Abstract
This study presents a highly efficient method of a synthesis of n-butyl acrylate via esterification of acrylic acid and n-butanol in the presence of supported ionic liquid phase (SILP) biocatalyst consisting of the lipase B from Candida antarctica (CALB) and multi-walled carbon nanotubes (MWCNTs) modified by D-glucose-based ionic liquids. Favorable reaction conditions (acrylic acid: n-butanol molar ratio 1:2, cyclohexane as a solvent, biocatalyst 0.150 g per 1 mmol of acrylic acid, temperature 25 °C) allowed the achievement of a 99% yield of n-butyl acrylate in 24 h. Screening of various ionic liquids showed that the most promising result was obtained if N-(6-deoxy-1-O-methoxy-α-D-glucopyranosyl)-N,N,N-trimethylammonium bis-(trifluoromethylsulfonyl)imide ([N(CH3)3GlcOCH3][N(Tf)2]) was selected in order to modify the outer surface of MWCNTs. The final SILP biocatalyst-CNTs-[N(CH3)3GlcOCH3][N(Tf)2]-CALB contained 1.8 wt.% of IL and 4.2 wt.% of CALB. Application of the SILP biocatalyst led to the enhanced activity of CALB in comparison with the biocatalyst prepared via physical adsorption of CALB onto MWCNTs (CNTs-CALB), as well as with commercially available Novozyme 435. Thus, the crucial role of IL in the stabilization of biocatalysts was clearly demonstrated. In addition, a significant stability of the developed biocatalytic system was confirmed (three runs with a yield of ester over 90%).
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Affiliation(s)
- Anna Szelwicka
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; (A.S.); (K.E.)
| | - Karol Erfurt
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; (A.S.); (K.E.)
| | - Sebastian Jurczyk
- Institute for Engineering of Polymer Materials and Dyes, Lukasiewicz Research Network, Sklodowskiej-Curie 55, 87-100 Torun, Poland;
| | - Slawomir Boncel
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
| | - Anna Chrobok
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; (A.S.); (K.E.)
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Deng Q, Tran NN, Razi Asrami M, Schober L, Gröger H, Hessel V. Ionic Liquid/Water Continuous-Flow System with Compartmentalized Spaces for Automatic Product Purification of Biotransformation with Enzyme Recycling. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qiulin Deng
- School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide 5005, Australia
- School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621000, China
| | - Nam Nghiep Tran
- School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide 5005, Australia
- School of Chemical Engineering, Can Tho University, Can Tho 910000, Vietnam
| | - Mahdieh Razi Asrami
- School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide 5005, Australia
| | - Lukas Schober
- Faculty of Chemistry, Bielefeld University, Bielefeld 33615, Germany
| | - Harald Gröger
- Faculty of Chemistry, Bielefeld University, Bielefeld 33615, Germany
| | - Volker Hessel
- School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide 5005, Australia
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8
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Li T, Li H, Li C. A review and perspective of recent research in biological treatment applied in removal of chlorinated volatile organic compounds from waste air. CHEMOSPHERE 2020; 250:126338. [PMID: 32126329 DOI: 10.1016/j.chemosphere.2020.126338] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 02/20/2020] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
Chlorinated volatile organic compounds (Cl-VOCs) waste air is a kind of typical recalcitrant organic compounds, which poses a great threat to the ecological environment and human health. At present, the biotechnology is considered as a potential strategy for the Cl-VOCs removal due to the advantages of low energy consumption and less possibility of secondary pollution. This work summarizes the recent researches on strains, bioreactors and technology integration. The dominant pure strains for biodegradation of Cl-VOCs are first outlined with a special focus on the co-metabolism of multi-components. It then summarizes two bioreactors (optimized airlift reactor (ALR) and two-phase partitioning bioreactor (TPPB)) and strategy (addition of surfactant) for improvement of biotrickling filter (BTF), which are benefit to achieve the mass transfer enhancement in the removal of hydrophobic Cl-VOCs from waste air. After that, the integration technologies, such as magnetic field (MF)-BTF, non-thermal plasma (NTP)/ultraviolet light (UV)-BTF, and microbial electrolytic cells (MEC), are elucidated, which provide opportunities for complete mineralization of Cl-VOCs in a more efficient, energy-saving and economical way. Finally, current challenges and a perspective of future research on biotechnology for Cl-VOCs removal are thoroughly discussed.
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Affiliation(s)
- Tong Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Tianjin, 300000, China
| | - Hao Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Tianjin, 300000, China.
| | - Chunli Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, 8 Guangrong Road, Tianjin, 300000, China
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Ji S, Jia C, Cao D, Li S, Zhang X. Direct and selective enzymatic synthesis of trehalose unsaturated fatty acid diesters and evaluation of foaming and emulsifying properties. Enzyme Microb Technol 2020; 136:109516. [PMID: 32331720 DOI: 10.1016/j.enzmictec.2020.109516] [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: 11/18/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 10/25/2022]
Abstract
Trehalose diesters are Gemini-type surfactants that might have better surface activity than conventional surfactants. A one-step method for the preparation of trehalose unsaturated fatty acid diesters has been successfully developed. The yield of trehalose diester of different unsaturated fatty acids was between 78 % and 88 % under optimal conditions: 25 mmol/L trehalose, 100 mmol/L unsaturated fatty acid, 60 g/L 3 Å molecular sieves and 20 g/L lipase at 150 rpm and 50 °C for 42 h in 15 mL of acetone. Additionally, trehalose diester was the sole product obtained with Novozym 435 in acetone. The chemical structures of 6,6'-di-O-oleoyltrehalose, 6,6'-di-O-linoleoyltrehalose, 6,6'-di-O-eicosenoyltrehalose and 6,6'-di-O-erucoyltrehalose were confirmed by FTIR, MS and NMR. Moreover, the hydrophile-lipophile balance (HLB) values, foaming properties and emulsifying properties of trehalose diesters were assessed, showing the potentials of these diesters as naturally derived surfactants for the food industry.
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Affiliation(s)
- Suping Ji
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Chengsheng Jia
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China.
| | - Dandan Cao
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Shusheng Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Xiaoming Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China; International Joint Laboratory on Food Safety, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
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Elgharbawy AA, Moniruzzaman M, Goto M. Recent advances of enzymatic reactions in ionic liquids: Part II. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2019.107426] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Kumar PK, Jha I, Sindhu A, Venkatesu P, Bahadur I, Ebenso EE. Experimental and molecular docking studies in understanding the biomolecular interactions between stem bromelain and imidazolium-based ionic liquids. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111785] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Deletion in the Promoter of PcPIN-L Affects the Polar Auxin Transport in Dwarf Pear (Pyrus communis L.). Sci Rep 2019; 9:18645. [PMID: 31819123 PMCID: PMC6901534 DOI: 10.1038/s41598-019-55195-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 11/25/2019] [Indexed: 12/31/2022] Open
Abstract
Dwarf cultivars or dwarfing rootstocks enable high-density planting and are therefore highly desirable in modern pear production. Previously, we found that the dwarf growth habit of pear is controlled by a single dominant gene PcDw. In this study, PcPIN-L (PCP021016) was cloned from dwarf-type and standard-type pears. PcPIN-L expression was significantly lower in the dwarf-type pears than in standard-type pears, which was caused by the CT repeat deletion in the promoter of dwarf-type pears. PcPIN-L overexpression in tobacco plants enhanced the growth of the stems and the roots. Notably, the indole acetic acid (IAA) content decreased in the shoot tips and increased in the stems of transgenic lines compared with wild type, which is consistent with the greater IAA content in the shoot tips and lower IAA content in the stems of dwarf-type pears than in standard-type pears. The CT repeat deletion in the promoter that causes a decrease in promoter activity is associated with lower PcPIN-L expression in the dwarf-type pears, which might limit the polar auxin transport and in turn result in the dwarf phenotype. Taken together, the results provide a novel dwarfing molecular mechanism in perennial woody plants.
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Engel J, Cordellier A, Huang L, Kara S. Enzymatic Ring‐Opening Polymerization of Lactones: Traditional Approaches and Alternative Strategies. ChemCatChem 2019. [DOI: 10.1002/cctc.201900976] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jennifer Engel
- Department of Engineering Biological and Chemical Engineering Biocatalysis and Bioprocessing GroupAarhus University Gustav Wieds Vej 10 C 8000 Aarhus Denmark
| | - Alex Cordellier
- Department of Engineering Biological and Chemical Engineering Biocatalysis and Bioprocessing GroupAarhus University Gustav Wieds Vej 10 C 8000 Aarhus Denmark
| | - Lei Huang
- Department of Engineering Biological and Chemical Engineering Biocatalysis and Bioprocessing GroupAarhus University Gustav Wieds Vej 10 C 8000 Aarhus Denmark
| | - Selin Kara
- Department of Engineering Biological and Chemical Engineering Biocatalysis and Bioprocessing GroupAarhus University Gustav Wieds Vej 10 C 8000 Aarhus Denmark
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Janati-Fard F, Housaindokht MR, Monhemi H, Esmaeili AA, Nakhaei Pour A. The influence of two imidazolium-based ionic liquids on the structure and activity of glucose oxidase: Experimental and theoretical studies. Int J Biol Macromol 2018; 114:656-665. [DOI: 10.1016/j.ijbiomac.2018.03.083] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 02/27/2018] [Accepted: 03/17/2018] [Indexed: 01/27/2023]
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Kadyan A, Pandey S. Florescence Quenching within Lithium Salt-Added Ionic Liquid. J Phys Chem B 2018; 122:5106-5113. [DOI: 10.1021/acs.jpcb.8b02723] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anu Kadyan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi - 110016, India
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi - 110016, India
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Gan Z, Wang Y, Wu T, Xu X, Zhang X, Han Z. MdPIN1b encodes a putative auxin efflux carrier and has different expression patterns in BC and M9 apple rootstocks. PLANT MOLECULAR BIOLOGY 2018; 96:353-365. [PMID: 29340953 DOI: 10.1007/s11103-018-0700-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 01/08/2018] [Indexed: 06/07/2023]
Abstract
Lower promoter activity is closely associated with lower MdPIN1b expression in the M9 interstem, which might contribute to the dwarfing effect in apple trees. Apple trees grafted onto dwarfing rootstock Malling 9 (M9) produce dwarfing tree architecture with high yield and widely applying in production. Previously, we have reported that in Malus 'Red Fuji' (RF) trees growing on M9 interstem and Baleng Crab (BC) rootstock, IAA content was relatively higher in bark tissue of M9 interstem than that in scion or rootstock. As IAA polar transportation largely depends on the PIN-FORMED (PIN) auxin efflux carrier. Herein, we identify two putative auxin efflux carrier genes in Malus genus, MdPIN1a and MdPIN1b, which were closely related to the AtPIN1. We found that MdPIN1b was expressed preferentially in BC and M9, and the expression of MdPIN1b was significantly lower in the phloem of M9 interstem than that in the scion and rootstock. The distinct expression of MdPIN1b and IAA content were concentrated in the cambium and adjacent xylem or phloem, and MdPIN1b protein was localized on cell plasma membrane in onion epidermal cells transiently expressing 35S:MdPIN1b-GFP fusion protein. Interestingly, an MdPIN1b mutant allele in the promoter region upstream of M9 exhibited decreased MdPIN1b expression compared to BC. MdPIN1b over-expressing interstem in tobacco exhibited increased polar auxin transport. It is proposed that natural allelic differences decreased promoter activity is closely associated with lower MdPIN1b expression in the M9 interstem, which might limit the basipetal transport of auxin, and in turn might contribute to the dwarfing effect. Taken together, these results reveal allelic variation underlying an important apple rootstock trait, and specifically a novel molecular genetic mechanism underlying dwarfing mechanism.
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Affiliation(s)
- Zengyu Gan
- Institute of Horticultural Plants, College of Horticulture, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Stress Physiology and Molecular Biology for Fruit Trees in Beijing Municipality, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology) in Ministry of Agriculture, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Yi Wang
- Institute of Horticultural Plants, College of Horticulture, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Stress Physiology and Molecular Biology for Fruit Trees in Beijing Municipality, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology) in Ministry of Agriculture, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Ting Wu
- Institute of Horticultural Plants, College of Horticulture, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Stress Physiology and Molecular Biology for Fruit Trees in Beijing Municipality, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology) in Ministry of Agriculture, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Xuefeng Xu
- Institute of Horticultural Plants, College of Horticulture, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Stress Physiology and Molecular Biology for Fruit Trees in Beijing Municipality, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology) in Ministry of Agriculture, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Xinzhong Zhang
- Institute of Horticultural Plants, College of Horticulture, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Stress Physiology and Molecular Biology for Fruit Trees in Beijing Municipality, China Agricultural University, Beijing, 100193, People's Republic of China
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology) in Ministry of Agriculture, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Zhenhai Han
- Institute of Horticultural Plants, College of Horticulture, China Agricultural University, Beijing, 100193, People's Republic of China.
- Key Laboratory of Stress Physiology and Molecular Biology for Fruit Trees in Beijing Municipality, China Agricultural University, Beijing, 100193, People's Republic of China.
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Nutrition and Physiology) in Ministry of Agriculture, China Agricultural University, Beijing, 100193, People's Republic of China.
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Molecular level insight into the effect of triethyloctylammonium bromide on the structure, thermal stability, and activity of Bovine serum albumin. Int J Biol Macromol 2018; 107:186-193. [DOI: 10.1016/j.ijbiomac.2017.08.157] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/15/2017] [Accepted: 08/29/2017] [Indexed: 11/23/2022]
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18
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Dagade DH, Barge SS. H-Bonding in Water of Hydration: NIR Spectral Studies of Hydration Behavior of 1-n
-Alkyl-3-metylimidazolium-Based Bromide and Amino Acid Ionic Liquids at 298.15 K. ChemistrySelect 2017. [DOI: 10.1002/slct.201702281] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dilip H. Dagade
- Department of Chemistry; Shivaji University; Kolhapur - 416 004 INDIA
| | - Seema S. Barge
- Department of Chemistry; Shivaji University; Kolhapur - 416 004 INDIA
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19
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Reilly JT, Coats MA, Reardon MM, Mirjafari A. Study of biocatalytic activity of histidine ammonia lyase in protic ionic liquids. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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de Paula BR, Zampieri DS, Nasário FD, Rodrigues JAR, Moran PJ. Regioselectivity Control of Enone Reduction Mediated by Aqueous Baker's Yeast with Addition of Ionic Liquid [bmim(PF 6 )]. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2017. [DOI: 10.1016/j.bcab.2017.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Affiliation(s)
- Roger A. Sheldon
- Molecular
Sciences Institute, School of Chemistry, University of Witwatersrand, Johannesburg, PO Wits 2050, South Africa
- Department
of Biotechnology, Delft University of Technology, Section BOC, van der Maasweg 9, 2629 HZ, Delft, The Netherlands
| | - John M. Woodley
- Department
of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Lyngby, Denmark
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22
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Improving the catalytic characteristics of lipase-displaying yeast cells by hydrophobic modification. Bioprocess Biosyst Eng 2017; 40:1689-1699. [DOI: 10.1007/s00449-017-1824-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 07/30/2017] [Indexed: 10/19/2022]
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23
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Kumari M, Singh UK, Singh P, Patel R. Effect of N-Butyl-N-Methyl-Morpholinium Bromide Ionic Liquid on the Conformation Stability of Human Serum Albumin. ChemistrySelect 2017. [DOI: 10.1002/slct.201601477] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Meena Kumari
- Biophysical Chemistry Laboratory; Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); New Delhi- 110025 India
| | - Upendra Kumar Singh
- Biophysical Chemistry Laboratory; Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); New Delhi- 110025 India
| | - Prashant Singh
- Department of Chemistry; A. R. S. D. College; University of Delhi; Delhi- 110021 India
| | - Rajan Patel
- Biophysical Chemistry Laboratory; Centre for Interdisciplinary Research in Basic Sciences; Jamia Millia Islamia (A Central University); New Delhi- 110025 India
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24
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Prikhod'ko SA, Shabalin AY, Bardin VV, Eltsov IV, Shundrina IK, Parmon VN, Adonin NY. 1-Alkyl-3-methylimidazolium 4-organyloxy-2,3,5,6-tetrafluorophenyltrifluoroborates as a new platform for ionic liquids with specific properties. RSC Adv 2017. [DOI: 10.1039/c7ra01709j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
A new synthetic platform for ionic liquids (ILs) with specific properties was suggested based on the polyfluorophenyltrifluoroborate anions, Q[4-XC6F4BF3] (X = F, RO).
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Affiliation(s)
| | | | - Vadim V. Bardin
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
| | | | - Inna K. Shundrina
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
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25
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Satish L, Millan S, Sahoo H. Spectroscopic insight into the interaction of bovine serum albumin with imidazolium-based ionic liquids in aqueous solution. LUMINESCENCE 2016; 32:695-705. [DOI: 10.1002/bio.3239] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 09/12/2016] [Accepted: 09/28/2016] [Indexed: 01/03/2023]
Affiliation(s)
- Lakkoji Satish
- Department of Chemistry; National Institute of Technology Rourkela; Rourkela Odisha India
| | - Sabera Millan
- Department of Chemistry; National Institute of Technology Rourkela; Rourkela Odisha India
| | - Harekrushna Sahoo
- Department of Chemistry; National Institute of Technology Rourkela; Rourkela Odisha India
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26
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Reorientational dynamics of charged and neutral solutes in 1-alkyl-3-methylimidazoilum bis(trifluoromethylsulfonyl)imide ionic liquids: Realization of ionic component of hydrogen bond. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.04.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Potdar MK, Kelso GF, Schwarz L, Zhang C, Hearn MTW. Recent Developments in Chemical Synthesis with Biocatalysts in Ionic Liquids. Molecules 2015; 20:16788-816. [PMID: 26389873 PMCID: PMC6331997 DOI: 10.3390/molecules200916788] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 08/24/2015] [Accepted: 09/09/2015] [Indexed: 11/16/2022] Open
Abstract
Over the past decade, a variety of ionic liquids have emerged as greener solvents for use in the chemical manufacturing industries. Their unique properties have attracted the interest of chemists worldwide to employ them as replacement for conventional solvents in a diverse range of chemical transformations including biotransformations. Biocatalysts are often regarded as green catalysts compared to conventional chemical catalysts in organic synthesis owing to their properties of low toxicity, biodegradability, excellent selectivity and good catalytic performance under mild reaction conditions. Similarly, a selected number of specific ionic liquids can be considered as greener solvents superior to organic solvents owing to their negligible vapor pressure, low flammability, low toxicity and ability to dissolve a wide range of organic and biological substances, including proteins. A combination of biocatalysts and ionic liquids thus appears to be a logical and promising opportunity for industrial use as an alternative to conventional organic chemistry processes employing organic solvents. This article provides an overview of recent developments in this field with special emphasis on the application of more sustainable enzyme-catalyzed reactions and separation processes employing ionic liquids, driven by advances in fundamental knowledge, process optimization and industrial deployment.
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Affiliation(s)
- Mahesh K Potdar
- Centre for Green Chemistry, School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia.
| | - Geoffrey F Kelso
- Centre for Green Chemistry, School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia.
| | - Lachlan Schwarz
- Centre for Green Chemistry, School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia.
| | - Chunfang Zhang
- Centre for Green Chemistry, School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia.
| | - Milton T W Hearn
- Centre for Green Chemistry, School of Chemistry, Monash University, Melbourne, Victoria 3800, Australia.
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28
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Santos LDF, Coutinho JAP, Ventura SPM. From water-in-oil to oil-in-water emulsions to optimize the production of fatty acids using ionic liquids in micellar systems. Biotechnol Prog 2015; 31:1473-80. [DOI: 10.1002/btpr.2156] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/27/2015] [Indexed: 12/29/2022]
Affiliation(s)
- Luísa D. F. Santos
- Dept. of Chemistry; CICECO, Aveiro Inst. of Materials, University of Aveiro; 3810-193 Aveiro Portugal
| | - João A. P. Coutinho
- Dept. of Chemistry; CICECO, Aveiro Inst. of Materials, University of Aveiro; 3810-193 Aveiro Portugal
| | - Sónia P. M. Ventura
- Dept. of Chemistry; CICECO, Aveiro Inst. of Materials, University of Aveiro; 3810-193 Aveiro Portugal
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29
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Stability and structural changes of horseradish peroxidase: Microwave versus conventional heating treatment. Enzyme Microb Technol 2015; 69:10-8. [DOI: 10.1016/j.enzmictec.2014.11.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 11/10/2014] [Accepted: 11/14/2014] [Indexed: 11/22/2022]
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30
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The use of organic solvents/ionic liquids mixtures in reactions catalyzed by lipase from Burkholderia cepacia immobilized in different supports. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2014.11.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Drożdż A, Erfurt K, Bielas R, Chrobok A. Chemo-enzymatic Baeyer–Villiger oxidation in the presence of Candida antarctica lipase B and ionic liquids. NEW J CHEM 2015. [DOI: 10.1039/c4nj01976h] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new method for the synthesis of lactones in the presence of ionic liquids and lipase has been developed.
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Affiliation(s)
- Agnieszka Drożdż
- Silesian University of Technology
- Faculty of Chemistry
- Department of Chemical Organic Technology and Petrochemistry
- 44-100 Gliwice
- Poland
| | - Karol Erfurt
- Silesian University of Technology
- Faculty of Chemistry
- Department of Chemical Organic Technology and Petrochemistry
- 44-100 Gliwice
- Poland
| | - Rafał Bielas
- Silesian University of Technology
- Faculty of Chemistry
- Department of Chemical Organic Technology and Petrochemistry
- 44-100 Gliwice
- Poland
| | - Anna Chrobok
- Silesian University of Technology
- Faculty of Chemistry
- Department of Chemical Organic Technology and Petrochemistry
- 44-100 Gliwice
- Poland
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32
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Guncheva M, Paunova K, Ossowicz P, Rozwadowski Z, Janus E, Idakieva K, Todinova S, Raynova Y, Uzunova V, Apostolova S, Tzoneva R, Yancheva D. Modification of Rapana thomasiana hemocyanin with choline amino acid salts significantly enhances its antiproliferative activity against MCF-7 human breast cancer cells. RSC Adv 2015. [DOI: 10.1039/c5ra12214g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This is the first study on the interactions of ionic liquids with large metalloproteins, in particular hemocyanins (Hcs).
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33
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Piotrowska U, Sobczak M. Enzymatic polymerization of cyclic monomers in ionic liquids as a prospective synthesis method for polyesters used in drug delivery systems. Molecules 2014; 20:1-23. [PMID: 25546617 PMCID: PMC6272625 DOI: 10.3390/molecules20010001] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/16/2014] [Indexed: 11/19/2022] Open
Abstract
Biodegradable or bioresorbable polymers are commonly used in various pharmaceutical fields (e.g., as drug delivery systems, therapeutic systems or macromolecular drug conjugates). Polyesters are an important class of polymers widely utilized in pharmacy due to their biodegradability and biocompatibility features. In recent years, there has been increased interest in enzyme-catalyzed ring-opening polymerization (e-ROP) of cyclic esters as an alternative method of preparation of biodegradable or bioresorbable polymers. Ionic liquids (ILs) have been presented as green solvents in enzymatic ring-opening polymerization. The activity, stability, selectivity of enzymes in ILs and the ability to catalyze polyester synthesis under these conditions are discussed. Overall, the review demonstrates that e-ROP of lactones or lactides could be an effective method for the synthesis of useful biomedical polymers.
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Affiliation(s)
- Urszula Piotrowska
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
| | - Marcin Sobczak
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Banacha 1, Warsaw 02-097, Poland.
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34
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35
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Ionic Liquids Increase the Catalytic Efficiency of a Lipase (Lip1) From an Antarctic Thermophilic Bacterium. Lipids 2014; 50:49-55. [DOI: 10.1007/s11745-014-3973-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 11/06/2014] [Indexed: 10/24/2022]
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36
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Kandar S, Suresh AK, Noronha SB. (R)-PAC biosynthesis in [BMIM][PF₆]/aqueous biphasic system using Saccharomyces cerevisiae BY4741 cells. Appl Biochem Biotechnol 2014; 175:1771-88. [PMID: 25424285 DOI: 10.1007/s12010-014-1394-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 11/12/2014] [Indexed: 11/28/2022]
Abstract
(R)-phenylacetylcarbinol or (R)-PAC is a pharmaceutical precursor of (1R, 2S) ephedrine and (1S, 2S) pseudoephedrine. Biotransformation of benzaldehyde and glucose by pyruvate decarboxylase produces (R)-PAC. This biotransformation suffers from toxicity of the substrate, product [(R)-PAC] and by-product (benzyl alcohol). In the present study, ionic liquid/aqueous biphasic system was employed to enhance (R)-PAC production. Fermented broth was the reaction medium in which Saccharomyces cerevisiae BY4741 was the source of pyruvate decarboxylase. Hydrophobic ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]) was the non-aqueous phase in which toxic compounds reside. Biocompatibility of [BMIM][PF6] and adequate distribution coefficients of benzaldehyde, (R)-PAC and benzyl alcohol were determined. A Box-Behnken design and response surface methodology were used for the optimization of biotransformation variables in order to maximize (R)-PAC yield and productivity. The results showed higher (R)-PAC yield and productivity of ∼1.5-fold each in the biphasic biotransformation of phase volume ratio 0.05 as compared to the monophasic (conventional) biotransformation. Moreover, the level of major by-product benzyl alcohol was also 3.5-fold lower in biphasic biotransformation. [BMIM][PF6]/aqueous biphasic system is a new approach which could intensify the (R)-PAC production.
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Affiliation(s)
- Smita Kandar
- Department of Bioscience and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India,
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37
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38
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Gao P, Li A, Lee HH, Wang DIC, Li Z. Enhancing Enantioselectivity and Productivity of P450-Catalyzed Asymmetric Sulfoxidation with an Aqueous/Ionic Liquid Biphasic System. ACS Catal 2014. [DOI: 10.1021/cs5010344] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Pengfei Gao
- Department
of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, Singapore 117585
- Singapore−MIT
Alliance, National University of Singapore, 4 Engineering Drive 3, Singapore, Singapore 117583
| | - Aitao Li
- Department
of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, Singapore 117585
| | - Heng Hiang Lee
- Department
of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, Singapore 117585
| | - Daniel I. C. Wang
- Singapore−MIT
Alliance, National University of Singapore, 4 Engineering Drive 3, Singapore, Singapore 117583
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Zhi Li
- Department
of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, Singapore 117585
- Singapore−MIT
Alliance, National University of Singapore, 4 Engineering Drive 3, Singapore, Singapore 117583
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39
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Qian X, Wang J, Li Y, Lin X, Wu Q. Two Enzyme Cooperatively Catalyzed Tandem Polymerization for the Synthesis of Polyester Containing Chiral (R)- or (S)-Ibuprofen Pendants. Macromol Rapid Commun 2014; 35:1788-1794. [PMID: 25200738 DOI: 10.1002/marc.201400394] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 07/31/2014] [Indexed: 01/30/2023]
Abstract
An interesting cooperation between Candida antarctica Lipase B (CAL-B) and alkaline protease from Bacillus subtilis (BSP) in the copolymerization of bulky ibuprofen-containing hydroxyacid methyl ester (HAEP) and ε-caprolactone (ε-CL) is observed. This cooperation improved the M¯n of the polymers from 3130 (CAL-B) to 9200 g mol-1 (CAL-B/BSP). Experimental results clearly indicate that CAL-B mainly catalyzes the ring-opening polymerization (ROP) of ε-CL under the initiation of HAEP to form the homopolymer of ε-CL, while BSP catalyzes the subsequent polycondensation of the ROP product to yield the copolymer with increased molecular weight. Furthermore, using suitable chemo-enzymatic methods, valuable polyesters with chiral (R)- or (S)-ibuprofen pendants can be tailor-made.
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Affiliation(s)
- Xueqi Qian
- Department of Chemistry, Zhejiang University, Zheda Road 38#, Hangzhou, 310027, China
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40
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Kumari M, Maurya JK, Tasleem M, Singh P, Patel R. Probing HSA-ionic liquid interactions by spectroscopic and molecular docking methods. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 138:27-35. [DOI: 10.1016/j.jphotobiol.2014.05.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 04/19/2014] [Accepted: 05/12/2014] [Indexed: 01/08/2023]
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41
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Superactivity induced by micellar systems as the key for boosting the yield of enzymatic reactions. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.06.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Kumari M, Maurya JK, Singh UK, Khan AB, Ali M, Singh P, Patel R. Spectroscopic and docking studies on the interaction between pyrrolidinium based ionic liquid and bovine serum albumin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 124:349-356. [PMID: 24508873 DOI: 10.1016/j.saa.2014.01.012] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Revised: 12/26/2013] [Accepted: 01/05/2014] [Indexed: 06/03/2023]
Abstract
The interaction of synthesized ionic liquid, 1-butyl-1-methyl-2-oxopyrrolidinium bromide (BMOP) and bovine serum albumin (BSA) was investigated using UV-Vis, FT-IR, steady state and time resolved fluorescence measurements and docking studies. Steady state spectra revealed that BMOP strongly quenched the intrinsic fluorescence of BSA through dynamic quenching mechanism. The corresponding thermodynamic parameters; Gibbs free energy change (ΔG), entropy change (ΔS) and enthalpy change (ΔH) showed that the binding process was spontaneous and entropy driven. It is also indicated that hydrophobic forces play a key role in the binding of BMOP to BSA. The synchronous fluorescence spectroscopy reveals that the conformation of BSA changed in the presence of BMOP. The shift in amide I band of FT-IR spectrum of BSA suggested unfolding of the protein secondary structure upon the addition of BMOP. In addition, the molecular modeling study of BSA-BMOP system shows that BMOP binds with BSA at the interface between two sub domains IIA and IIIA, which is located just above the entrance of the binding pocket of IIA through hydrophobic and hydrogen bond interactions in which hydrophobic interaction are dominated.
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Affiliation(s)
- Meena Kumari
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Jitendra Kumar Maurya
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Upendra Kumar Singh
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Abbul Bashar Khan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Maroof Ali
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi, India
| | - Prashant Singh
- Department of Chemistry, A. R. S. D. College, University of Delhi, Delhi, India
| | - Rajan Patel
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, India.
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43
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Improving the catalytic performance of porcine pancreatic lipase in the presence of [MMIm][MeSO4] with the modification of functional ionic liquids. Process Biochem 2014. [DOI: 10.1016/j.procbio.2014.01.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Sun S, Li P, Bi Y, Xiao F. Enzymatic epoxidation of soybean oil using ionic liquid as reaction media. J Oleo Sci 2014; 63:383-90. [PMID: 24599105 DOI: 10.5650/jos.ess13197] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
An ionic liquid (IL) system for the enzymatic epoxidation of soybean oil was studied. The effects of active oxygen carriers (different fatty acids) and ILs ([Bmim]PF6 and [Bmim]BF4) on the enzymatic epoxidation were investigated. Response surface methodology (RSM) was used to study and optimize the effects of variables (reaction time, reaction temperature, molar ratio of H2O2/C=C-bonds, and molar ratio of fatty acid/C=C-bonds) on the epoxy oxygen group content (EOC) of epoxidized soybean oil (ESO). Results showed that the enzymatic epoxidation of soybean oil can be enhanced using tetradecanoic acid (C13H27COOH) as active oxygen carrier and [Bmim]PF6 as reaction medium. The optimum EOC of ESO was 5.9 ± 0.3% under the following conditions: reaction temperature 46°C, reaction time 11 h, enzyme load 3% (w/w, relative to the weight of soybean oil), molar ratio of H2O2/C=C-bonds 1.8:1, and molar ratio of C13H27COOH/C=C-bonds 0.5:1.
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Affiliation(s)
- Shangde Sun
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology
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45
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46
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Egorova KS, Ananikov VP. Toxicity of ionic liquids: eco(cyto)activity as complicated, but unavoidable parameter for task-specific optimization. CHEMSUSCHEM 2014; 7:336-60. [PMID: 24399804 DOI: 10.1002/cssc.201300459] [Citation(s) in RCA: 256] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 07/22/2013] [Indexed: 05/19/2023]
Abstract
Rapid progress in the field of ionic liquids in recent decades led to the development of many outstanding energy-conversion processes, catalytic systems, synthetic procedures, and important practical applications. Task-specific optimization emerged as a sharpening stone for the fine-tuning of structure of ionic liquids, which resulted in unprecedented efficiency at the molecular level. Ionic-liquid systems showed promising opportunities in the development of green and sustainable technologies; however, the chemical nature of ionic liquids is not intrinsically green. Many ionic liquids were found to be toxic or even highly toxic towards cells and living organisms. In this Review, we show that biological activity and cytotoxicity of ionic liquids dramatically depend on the nature of a biological system. An ionic liquid may be not toxic for particular cells or organisms, but may demonstrate high toxicity towards another target present in the environment. Thus, a careful selection of biological activity data is a must for the correct assessment of chemical technologies involving ionic liquids. In addition to the direct biological activity (immediate response), several indirect effects and aftereffects are of primary importance. The following principal factors were revealed to modulate toxicity of ionic liquids: i) length of an alkyl chain in the cation; ii) degree of functionalization in the side chain of the cation; iii) anion nature; iv) cation nature; and v) mutual influence of anion and cation.
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Affiliation(s)
- Ksenia S Egorova
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991 (Russia)
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47
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Herr N, Ratzka J, Lauterbach L, Lenz O, Ansorge-Schumacher MB. Stability enhancement of an O2-tolerant NAD+-reducing [NiFe]-hydrogenase by a combination of immobilisation and chemical modification. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.06.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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48
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Wang T, Wang L, Tu J, Xiong H, Wang S. Direct electrochemistry and electrocatalysis of heme proteins immobilised in carbon-coated nickel magnetic nanoparticle–chitosan–dimethylformamide composite films in room-temperature ionic liquids. Bioelectrochemistry 2013; 94:94-9. [DOI: 10.1016/j.bioelechem.2013.04.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Revised: 04/02/2013] [Accepted: 04/03/2013] [Indexed: 11/26/2022]
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49
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Wei XL, Wang XH, Ping AL, Du PP, Sun DZ, Zhang QF, Liu J. Formation and characteristics of aqueous two-phase systems formed by a cationic surfactant and a series of ionic liquids. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 939:1-9. [PMID: 24080169 DOI: 10.1016/j.jchromb.2013.09.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 08/23/2013] [Accepted: 09/03/2013] [Indexed: 10/26/2022]
Abstract
Aqueous two-phase systems (ATPS) were obtained in the aqueous mixtures of a cationic surfactant and a series of ionic liquids (ILs). The effects of IL structure, temperature and additives on the phase separation were systematically investigated. The microstructures of some ATPS were observed by freeze-fracture replication technique. Lyotropic liquid crystal was found in the bottom phase besides micelles under different conditions. Remarkably, both IL structure and additives profoundly affected the formation and properties of the ATPSs. The phase separation can be attributed to the existence of different aggregates and the cation-π interactions of the cationic surfactant with the ILs, which has a significant role in the formation of ATPS. The extraction capacity of the studied ATPS was also evaluated through their application in the extraction of two biosubstances. The results indicate that the ILs with BF4(-) as anion show much better extraction efficiencies than the corresponding ILs with Br(-) as anion do under the same conditions. l-Tryptophan was mainly distributed into the NPTAB-rich phase, while methylene blue and capsochrome were mainly in the IL-rich phase.
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Affiliation(s)
- Xi-Lian Wei
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, PR China.
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Lawler C, Fayer MD. The Influence of Lithium Cations on Dynamics and Structure of Room Temperature Ionic Liquids. J Phys Chem B 2013; 117:9768-74. [DOI: 10.1021/jp405752q] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christian Lawler
- Department of Chemistry, Stanford University, Stanford, California 94305, United
States
| | - Michael D. Fayer
- Department of Chemistry, Stanford University, Stanford, California 94305, United
States
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