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Xiao Z, Guo S, Lu W. Asymmetric reduction of 4-trimethylsilyl-3-butyn-2-one to (R)-4-trimethylsilyl-3-butyn-2-ol catalyzed by a novel strain lyophilized Acetobacter sp. CCTCC M209061 in an aqueous/ionic liquid biphasic system. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02223-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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2
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Altering the Stereoselectivity of Whole-Cell Biotransformations via the Physicochemical Parameters Impacting the Processes. Catalysts 2021. [DOI: 10.3390/catal11070781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The enantioselective synthesis of organic compounds is one of the great challenges in organic synthetic chemistry due to its importance for the acquisition of biologically active derivatives, e.g., pharmaceuticals, agrochemicals, and others. This is why biological systems are increasingly applied as tools for chiral compounds synthesis or modification. The use of whole cells of “wild-type” microorganisms is one possible approach, especially as some methods allow improving the conversion degrees and controlling the stereoselectivity of the reaction without the need to introduce changes at the genetic level. Simple manipulation of the culture conditions, the form of a biocatalyst, or the appropriate composition of the biotransformation medium makes it possible to obtain optically pure products in a cheap, safe, and environmentally friendly manner. This review contains selected examples of the influence of physicochemical factors on the stereochemistry of the biocatalytic preparation of enantiomerically pure compounds, which is undertaken through kinetically controlled separation of their racemic mixtures or reduction of prochiral ketones and has an effect on the final enantiomeric purity and enantioselectivity of the reaction.
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3
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Ionic liquids for regulating biocatalytic process: Achievements and perspectives. Biotechnol Adv 2021; 51:107702. [PMID: 33515671 DOI: 10.1016/j.biotechadv.2021.107702] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/26/2020] [Accepted: 01/15/2021] [Indexed: 12/26/2022]
Abstract
Biocatalysis has found enormous applications in sorts of fields as an alternative to chemical catalysis. In the pursue of green and sustainable chemistry, ionic liquids (ILs) have been considered as promising reaction media for biocatalysis, owing to their unique characteristics, such as nonvolatility, inflammability and tunable properties as regards polarity and water miscibility behavior, compared to organic solvents. In recent years, great developments have been achieved in respects to biocatalysis in ILs, especially for preparing various chemicals. This review tends to give illustrative examples with a focus on representative chemicals production by biocatalyst in ILs and elucidate the possible mechanism in such systems. It also discusses how to regulate the catalytic efficiency from several aspects and finally provides an outlook on the opportunities to broaden biocatalysis in ILs.
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4
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Development of biocompatible DES/NADES as co-solvents for efficient biosynthesis of chiral alcohols. Bioprocess Biosyst Eng 2020; 43:1987-1997. [DOI: 10.1007/s00449-020-02387-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 06/01/2020] [Indexed: 12/27/2022]
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5
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Pavoković D, Košpić K, Panić M, Radojčić Redovniković I, Cvjetko Bubalo M. Natural deep eutectic solvents are viable solvents for plant cell culture-assisted stereoselective biocatalysis. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.03.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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High-Efficient Production of ( S)-1-[3,5-Bis(trifluoromethyl)phenyl]ethanol via Whole-Cell Catalyst in Deep-Eutectic Solvent-Containing Micro-Aerobic Medium System. Molecules 2020; 25:molecules25081855. [PMID: 32316570 PMCID: PMC7221904 DOI: 10.3390/molecules25081855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/09/2020] [Accepted: 04/15/2020] [Indexed: 01/12/2023] Open
Abstract
The ratio of substrate to catalyst (S/C) is a prime target for the application of asymmetric production of enantiomerically enriched intermediates by whole-cell biocatalyst. In the present study, an attractive increase in S/C was achieved in a natural deep-eutectic solvent (NADES) containing reaction system under microaerobic condition for high production of (S)-1-[3,5-bis(trifluoromethyl)phenyl]ethanol ((S)-3,5-BTPE) with Candida tropicalis 104. In PBS buffer (0.2 M, pH 8.0) at 200 rpm and 30 °C, 79.5 g (Dry Cell Weight, DCW)/L C. tropicalis 104 maintained the same yield of 73.7% for the bioreduction of 3,5-bis(trifluoromethyl)acetophenone (BTAP) under an oxygen-deficient environment compared with oxygen-sufficient conditions, while substrate load increased 4.0-fold (from 50 mM to 200 mM). Furthermore, when choline chloride:trehalose (ChCl:T, 1:1 molar ratio) was introduced into the reaction system for its versatility of increasing cell membrane permeability and declining BTAP cytotoxicity to biocatalyst, the yields were further increased to 86.2% under 200 mM BTAP, or 72.9% at 300 mM BTAP. After the optimization of various reaction parameters involved in the bioreduction, and the amount of biocatalyst and maltose co-substrate remained 79.5 g (DCW)/L and 50 g/L, the S/C for the reduction elevated 6.3 times (3.8 mM/g versus 0.6 mM/g). By altering the respiratory pattern of the whole-cell biocatalyst and exploiting the ChCl:T-containing reaction system, the developed strategy exhibits an attractive potential for enhancing catalytic efficiency of whole-cell-mediated reduction, and provides valuable insight for the development of whole-cell catalysis.
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7
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Peng F, Zhao Y, Li FZ, Ou XY, Zeng YJ, Zong MH, Lou WY. Highly enantioselective resolution of racemic 1-phenyl-1,2-ethanediol to (S)-1-phenyl-1,2-ethanediol by Kurthia gibsonii SC0312 in a biphasic system. J Biotechnol 2020; 308:21-26. [PMID: 31758968 DOI: 10.1016/j.jbiotec.2019.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 12/20/2022]
Abstract
The asymmetric resolution of racemic 1-phenyl-1,2-ethanediol (PED) to (S)-PED by Kurthia gibsonii SC0312 (K. gibsonii SC0312) was conducted in a biphasic system comprised of an organic solvent and aqueous phosphate buffer. The impacts of organic solvents on the whole cell catalytic activity, metabolic activity, membrane integrity, and material distribution were first evaluated. The results showed that all organic solvents, except for dibutyl phthalate, showed a detrimental effect on the metabolic activity of the cells, especially for those with low log P values. All organic solvents were capable of changing the membrane permeability and membrane integrity of the cells. Moreover, some organic solvents showed a good extraction of the oxidation product. Finally, a high yield of 47.7 % of (S)-PED was obtained by the asymmetric resolution of racemic PED using K. gibsonii SC0312 in a biphasic system under the optimal conditions: racemic PED 120 mM, temperature 35 °C, reaction time 6 h, 180 rpm, and a volume ratio of dibutyl phthalate to aqueous phosphate buffer of 1:1. The optical purity of (S)-PED increased from 51.3 % to >99 %. This work described an efficient approach to improve reaction efficiency, and constructed a highly effective biphasic reaction system for the fabrication of (S)-PED via K. gibsonii SC0312.
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Affiliation(s)
- Fei Peng
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Ying Zhao
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Fang-Zhou Li
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Xiao-Yang Ou
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Ying-Jie Zeng
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Min-Hua Zong
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Wen-Yong Lou
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China.
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8
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Egorova KS, Ananikov VP. Ionic liquids in whole-cell biocatalysis: a compromise between toxicity and efficiency. Biophys Rev 2018; 10:881-900. [PMID: 29313188 PMCID: PMC5988618 DOI: 10.1007/s12551-017-0389-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/13/2017] [Indexed: 12/11/2022] Open
Abstract
Comparison of chemical catalysis by metal complexes, enzymatic catalysis and whole-cell biocatalysis shows well-addressed advantages of the latter approach. However, a critical limitation in the practical applications originates from the high sensitivity of microorganisms to the toxic effects of organic solvents. In the present review, we consider toxic solvent properties of ionic liquid/water systems towards the development of efficient applications in practical organic transformations.
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Affiliation(s)
- Ksenia S Egorova
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russia
| | - Valentine P Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russia.
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9
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Garzón-Posse F, Becerra-Figueroa L, Hernández-Arias J, Gamba-Sánchez D. Whole Cells as Biocatalysts in Organic Transformations. Molecules 2018; 23:E1265. [PMID: 29799483 PMCID: PMC6099930 DOI: 10.3390/molecules23061265] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 05/21/2018] [Accepted: 05/22/2018] [Indexed: 11/17/2022] Open
Abstract
Currently, the power and usefulness of biocatalysis in organic synthesis is undeniable, mainly due to the very high enantiomeric excess reached using enzymes, in an attempt to emulate natural processes. However, the use of isolated enzymes has some significant drawbacks, the most important of which is cost. The use of whole cells has emerged as a useful strategy with several advantages over isolated enzymes; for this reason, modern research in this field is increasing, and various reports have been published recently. This review surveys the most recent developments in the enantioselective reduction of carbon-carbon double bonds and prochiral ketones and the oxidation of prochiral sulfides using whole cells as biocatalytic systems.
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Affiliation(s)
- Fabián Garzón-Posse
- Laboratory of Organic Synthesis Bio- and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra. 1No 18A-12 Q:305, Bogotá 111711, Colombia.
| | - Liliana Becerra-Figueroa
- Laboratory of Organic Synthesis Bio- and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra. 1No 18A-12 Q:305, Bogotá 111711, Colombia.
| | - José Hernández-Arias
- Laboratory of Organic Synthesis Bio- and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra. 1No 18A-12 Q:305, Bogotá 111711, Colombia.
| | - Diego Gamba-Sánchez
- Laboratory of Organic Synthesis Bio- and Organocatalysis, Chemistry Department, Universidad de los Andes, Cra. 1No 18A-12 Q:305, Bogotá 111711, Colombia.
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10
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Mai NL, Koo YM. Whole-Cell Biocatalysis in Ionic Liquids. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2018; 168:105-132. [PMID: 30488166 DOI: 10.1007/10_2018_77] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The use of whole-cell biocatalysis in ionic liquid (IL)-containing systems has attracted increasing attention in recent years. Compared to bioreactions catalyzed by isolated enzymes, the major advantage of using whole cells in biocatalytic processes is that the cells provide a natural intracellular environment for the enzymes to function with in situ cofactor regeneration. To date, the applications of whole-cell biocatalysis in IL-containing systems have focused on the production of valuable compounds, mainly through reduction, oxidation, hydrolysis, and transesterification reactions. The interaction mechanisms between the ILs and biocatalysts in whole-cell biocatalysis offer the possibility to effectively integrate ILs with biotransformation. This chapter discusses these interaction mechanisms between ILs and whole-cell catalysts. In addition, examples of whole-cell catalyzed reactions with ILs will also be discussed. Graphical Abstract.
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Affiliation(s)
- Ngoc Lan Mai
- Department of Biological Engineering, Inha University, Incheon, South Korea
| | - Yoon-Mo Koo
- Department of Biological Engineering, Inha University, Incheon, South Korea.
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11
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Xu P, Zheng GW, Zong MH, Li N, Lou WY. Recent progress on deep eutectic solvents in biocatalysis. BIORESOUR BIOPROCESS 2017; 4:34. [PMID: 28794956 PMCID: PMC5522511 DOI: 10.1186/s40643-017-0165-5] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Accepted: 07/16/2017] [Indexed: 01/19/2023] Open
Abstract
Deep eutectic solvents (DESs) are eutectic mixtures of salts and hydrogen bond donors with melting points low enough to be used as solvents. DESs have proved to be a good alternative to traditional organic solvents and ionic liquids (ILs) in many biocatalytic processes. Apart from the benign characteristics similar to those of ILs (e.g., low volatility, low inflammability and low melting point), DESs have their unique merits of easy preparation and low cost owing to their renewable and available raw materials. To better apply such solvents in green and sustainable chemistry, this review firstly describes some basic properties, mainly the toxicity and biodegradability of DESs. Secondly, it presents several valuable applications of DES as solvent/co-solvent in biocatalytic reactions, such as lipase-catalyzed transesterification and ester hydrolysis reactions. The roles, serving as extractive reagent for an enzymatic product and pretreatment solvent of enzymatic biomass hydrolysis, are also discussed. Further understanding how DESs affect biocatalytic reaction will facilitate the design of novel solvents and contribute to the discovery of new reactions in these solvents.
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Affiliation(s)
- Pei Xu
- Laboratory of Applied Biocatalysis, School of Food Sciences and Engineering, South China University of Technology, Guangzhou, 510640 China.,State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640 China
| | - Gao-Wei Zheng
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237 China
| | - Min-Hua Zong
- Laboratory of Applied Biocatalysis, School of Food Sciences and Engineering, South China University of Technology, Guangzhou, 510640 China.,State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640 China
| | - Ning Li
- Laboratory of Applied Biocatalysis, School of Food Sciences and Engineering, South China University of Technology, Guangzhou, 510640 China
| | - Wen-Yong Lou
- Laboratory of Applied Biocatalysis, School of Food Sciences and Engineering, South China University of Technology, Guangzhou, 510640 China.,State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640 China
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12
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Vitale P, Abbinante VM, Perna FM, Salomone A, Cardellicchio C, Capriati V. Unveiling the Hidden Performance of Whole Cells in the Asymmetric Bioreduction of Aryl-containing Ketones in Aqueous Deep Eutectic Solvents. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201601064] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Paola Vitale
- Dipartimento di Farmacia-Scienze del Farmaco; Università degli Studi di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S.; Via E. Orabona, 4, I- 70125 Bari Italy
| | - Vincenzo Mirco Abbinante
- Dipartimento di Farmacia-Scienze del Farmaco; Università degli Studi di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S.; Via E. Orabona, 4, I- 70125 Bari Italy
| | - Filippo Maria Perna
- Dipartimento di Farmacia-Scienze del Farmaco; Università degli Studi di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S.; Via E. Orabona, 4, I- 70125 Bari Italy
| | - Antonio Salomone
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali; Università del Salento; Prov.le Lecce-Monteroni I-73100 Lecce Italy
| | | | - Vito Capriati
- Dipartimento di Farmacia-Scienze del Farmaco; Università degli Studi di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S.; Via E. Orabona, 4, I- 70125 Bari Italy
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13
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Xu P, Du PX, Zong MH, Li N, Lou WY. Combination of deep eutectic solvent and ionic liquid to improve biocatalytic reduction of 2-octanone with Acetobacter pasteurianus GIM1.158 cell. Sci Rep 2016; 6:26158. [PMID: 27185089 PMCID: PMC4868980 DOI: 10.1038/srep26158] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 04/27/2016] [Indexed: 01/23/2023] Open
Abstract
The efficient anti-Prelog asymmetric reduction of 2-octanone with Acetobacter pasteurianus GIM1.158 cells was successfully performed in a biphasic system consisting of deep eutectic solvent (DES) and water-immiscible ionic liquid (IL). Various DESs exerted different effects on the synthesis of (R)-2-octanol. Choline chloride/ethylene glycol (ChCl/EG) exhibited good biocompatibility and could moderately increase the cell membrane permeability thus leading to the better results. Adding ChCl/EG increased the optimal substrate concentration from 40 mM to 60 mM and the product e.e. kept above 99.9%. To further improve the reaction efficiency, water-immiscible ILs were introduced to the reaction system and an enhanced substrate concentration (1.5 M) was observed with C4MIM·PF6. Additionally, the cells manifested good operational stability in the reaction system. Thus, the efficient biocatalytic process with ChCl/EG and C4MIM·PF6 was promising for efficient synthesis of (R)-2-octanol.
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Affiliation(s)
- Pei Xu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.,Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Peng-Xuan Du
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Min-Hua Zong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ning Li
- Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wen-Yong Lou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.,Laboratory of Applied Biocatalysis, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
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14
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Xu Z, Wu Q, Yang M, Wang S, Wang Z, Xu X. Efficient asymmetric biosynthesis of (R)-(−)-epinephrine in hydrophilic ionic liquid-containing systems. RSC Adv 2016. [DOI: 10.1039/c6ra22140h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Acinetobacter sp. UN-16 cell biocatalytic process with [HOOCEMIM]NO3 is very promising for efficient preparation of (R)-(−)-epinephrine.
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Affiliation(s)
- Zhiqun Xu
- Key Laboratory of Biopharmaceutical
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Qiao Wu
- Key Laboratory of Biopharmaceutical
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Meixia Yang
- Key Laboratory of Biopharmaceutical
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Shuai Wang
- Key Laboratory of Biopharmaceutical
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Zhenshou Wang
- Key Laboratory of Biopharmaceutical
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Xiaoping Xu
- Key Laboratory of Biopharmaceutical
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
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15
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Wang N, Li J, Sun J, Huang J, Wang P. Bioreduction of 3,5-bis(trifluoromethyl)acetophenone using ionic liquid as a co-solvent catalyzed by recombinant Escherichia coli cells. Biochem Eng J 2015. [DOI: 10.1016/j.bej.2015.05.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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16
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Efficient biosynthesis of γ-decalactone in ionic liquids by immobilized whole cells of Yarrowia lipolytica G3-3.21 on attapulgite. Bioprocess Biosyst Eng 2015; 38:2045-52. [PMID: 26091898 DOI: 10.1007/s00449-015-1431-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 06/14/2015] [Indexed: 10/23/2022]
Abstract
In this study, the biosynthesis of γ-decalactone (GDL) was successfully conducted in an ionic liquid (IL)-containing cosolvent system using immobilized cells of Yarrowia lipolytica G3-3.21 on attapulgite (ATG). We found the immobilized Y. lipolytica G3-3.21 cells in N-butyl-pyridinium tetrafluoroborate ([BPy]BF4) solution gave the highest activity of C16-Acyl-CoA oxidase and the maximum yield of GDL. The optimum immobilization conditions for the highest yield of GDL were 20 g/L of ATG, 1.5 % of CaCl2 and 2 % of sodium alginate (NaAlg). The optimal [BPy]BF4 content, buffer pH, reaction temperature, shaking speed, castor oil and glucose contents were 7.5 %, 26 °C, 150 rpm, 100 g/L and 10 %, respectively. Under the optimized conditions, the GDL yield was up to 8.05 g/L. After ten times of reuse, the GDL yield was 7.51 g/L, corresponding to 93.3 % of that obtained in the first batch, suggesting a good reusability and potential for industrial applications.
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Li J, Wang P, Huang J, Sun J. Design and application of a novel ionic liquid with the property of strengthening coenzyme regeneration for whole-cell bioreduction in an ionic liquid-distilled water medium. BIORESOURCE TECHNOLOGY 2015; 175:42-50. [PMID: 25459802 DOI: 10.1016/j.biortech.2014.10.059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 10/09/2014] [Accepted: 10/10/2014] [Indexed: 06/04/2023]
Abstract
Focusing on the task-specific properties of ionic liquids (ILs), a novel IL was designed by combining the quaternary ammonium cationic surfactant, [N1,1,1,1](+), with benign amino acid anion ([Cys](-)), and was successfully employed in whole-cell-catalyzed bioreduction by Trichodermaasperellum ZJPH0810 using an ionic liquid-distilled water medium. As expected, based on better understanding about the effects of ILs' characteristics of cations and anions on T. asperellum ZJPH0810-catalyzed bioreduction and the optimization of reaction parameters, the developed tetramethylammonium cysteine ([N1,1,1,1][Cys])-containing system is more efficient for the asymmetric reduction of 3,5-bis(trifluoromethyl) acetophenone to (R)-[3,5-bis(trifluoromethyl)phenyl] ethanol by whole-cell catalysis in contrast to that in monophasic aqueous system. Herein, a new biotechnological application for designed type of ILs is proposed due to its novel property of strengthening coenzyme regeneration during the bioreduction process. The designed IL [N1,1,1,1][Cys] was also evaluated in Candidatropicalis 104-catalyzed bioreduction to board its application, with remarkable success.
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Affiliation(s)
- Jun Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Pu Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Jin Huang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
| | - Jia Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310032, China
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18
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Fan LL, Li HJ, Chen QH. Applications and mechanisms of ionic liquids in whole-cell biotransformation. Int J Mol Sci 2014; 15:12196-216. [PMID: 25007820 PMCID: PMC4139838 DOI: 10.3390/ijms150712196] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 06/13/2014] [Accepted: 07/01/2014] [Indexed: 01/08/2023] Open
Abstract
Ionic liquids (ILs), entirely composed of cations and anions, are liquid solvents at room temperature. They are interesting due to their low vapor pressure, high polarity and thermostability, and also for the possibility to fine-tune their physicochemical properties through modification of the chemical structures of their cations or anions. In recent years, ILs have been widely used in biotechnological fields involving whole-cell biotransformations of biodiesel or biomass, and organic compound synthesis with cells. Research studies in these fields have increased from the past decades and compared to the typical solvents, ILs are the most promising alternative solvents for cell biotransformations. However, there are increasing limitations and new challenges in whole-cell biotransformations with ILs. There is little understanding of the mechanisms of ILs' interactions with cells, and much remains to be clarified. Further investigations are required to overcome the drawbacks of their applications and to broaden their application spectrum. This work mainly reviews the applications of ILs in whole-cell biotransformations, and the possible mechanisms of ILs in microbial cell biotransformation are proposed and discussed.
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Affiliation(s)
- Lin-Lin Fan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China.
| | - Hong-Ji Li
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China.
| | - Qi-He Chen
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou 310058, China.
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Du PX, Wei P, Lou WY, Zong MH. Biocatalytic anti-Prelog reduction of prochiral ketones with whole cells of Acetobacter pasteurianus GIM1.158. Microb Cell Fact 2014; 13:84. [PMID: 24916156 PMCID: PMC4075937 DOI: 10.1186/1475-2859-13-84] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 06/05/2014] [Indexed: 01/23/2023] Open
Abstract
Background Enantiomerically pure alcohols are important building blocks for production of chiral pharmaceuticals, flavors, agrochemicals and functional materials and appropriate whole-cell biocatalysts offer a highly enantioselective, minimally polluting route to these valuable compounds. At present, most of these biocatalysts follow Prelog’s rule, and thus the (S)-alcohols are usually obtained when the smaller substituent of the ketone has the lower CIP priority. Only a few anti-Prelog (R)-specific whole cell biocatalysts have been reported. In this paper, the biocatalytic anti-Prelog reduction of 2-octanone to (R)-2-octanol was successfully conducted with high enantioselectivity using whole cells of Acetobacter pasteurianus GIM1.158. Results Compared with other microorganisms investigated, Acetobacter pasteurianus GIM1.158 was shown to be more effective for the reduction reaction, affording much higher yield, product enantiomeric excess (e.e.) and initial reaction rate. The optimal temperature, buffer pH, co-substrate and its concentration, substrate concentration, cell concentration and shaking rate were 35°C, 5.0, 500 mmol/L isopropanol, 40 mmol/L, 25 mg/mL and 120 r/min, respectively. Under the optimized conditions, the maximum yield and the product e.e. were 89.5% and >99.9%, respectively, in 70 minutes. Compared with the best available data in aqueous system (yield of 55%), the yield of (R)-2-octanol was greatly increased. Additionally, the efficient whole-cell biocatalytic process was feasible on a 200-mL preparative scale and the chemical yield increased to 95.0% with the product e.e. being >99.9%. Moreover, Acetobacter pasteurianus GIM1.158 cells were proved to be capable of catalyzing the anti-Prelog bioreduction of other prochiral carbonyl compounds with high efficiency. Conclusions Via an effective increase in the maximum yield and the product e.e. with Acetobacter pasteurianus GIM1.158 cells, these results open the way to use of whole cells of this microorganism for challenging enantioselective reduction reactions on laboratory and commercial scales.
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Affiliation(s)
| | | | - Wen-Yong Lou
- Laboratory of Applied Biocatalysis, South China University of Technology, Guangzhou 510640, China.
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Asymmetric synthesis of duloxetine intermediate (S)-(-)-3-N-methylamino-1-(2-thienyl)-1-propanol using immobilized Saccharomyces cerevisiae in liquid-core sodium alginate/chitosan/sodium alginate microcapsules. Bioprocess Biosyst Eng 2014; 37:2243-50. [DOI: 10.1007/s00449-014-1202-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 04/19/2014] [Indexed: 10/25/2022]
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Yu CY, Wei P, Li XF, Zong MH, Lou WY. Using Ionic Liquid in a Biphasic System to Improve Asymmetric Hydrolysis of Styrene Oxide Catalyzed by Cross-Linked Enzyme Aggregates (CLEAs) of Mung Bean Epoxide Hydrolases. Ind Eng Chem Res 2014. [DOI: 10.1021/ie4037559] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Chun-Yang Yu
- State Key Laboratory
of Pulp and Paper Engineering and ‡Laboratory of Applied Biocatalysis, College
of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Ping Wei
- State Key Laboratory
of Pulp and Paper Engineering and ‡Laboratory of Applied Biocatalysis, College
of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Xiao-Feng Li
- State Key Laboratory
of Pulp and Paper Engineering and ‡Laboratory of Applied Biocatalysis, College
of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Min-Hua Zong
- State Key Laboratory
of Pulp and Paper Engineering and ‡Laboratory of Applied Biocatalysis, College
of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Wen-Yong Lou
- State Key Laboratory
of Pulp and Paper Engineering and ‡Laboratory of Applied Biocatalysis, College
of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
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Kaleem I, Shen H, Lv B, Wei B, Rasool A, Li C. Efficient biosynthesis of glycyrrhetic acid 3-O-mono-β-d-glucuronide (GAMG) in water-miscible ionic liquid by immobilized whole cells of Penicillium purpurogenum Li-3 in alginate gel. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2013.10.023] [Citation(s) in RCA: 6] [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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