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Liu M, Li S. Nitrile biosynthesis in nature: how and why? Nat Prod Rep 2024; 41:649-671. [PMID: 38193577 DOI: 10.1039/d3np00028a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Covering: up to the end of 2023Natural nitriles comprise a small set of secondary metabolites which however show intriguing chemical and functional diversity. Various patterns of nitrile biosynthesis can be seen in animals, plants, and microorganisms with the characteristics of both evolutionary divergence and convergence. These specialized compounds play important roles in nitrogen metabolism, chemical defense against herbivores, predators and pathogens, and inter- and/or intraspecies communications. Here we review the naturally occurring nitrile-forming pathways from a biochemical perspective and discuss the biological and ecological functions conferred by diversified nitrile biosyntheses in different organisms. Elucidation of the mechanisms and evolutionary trajectories of nitrile biosynthesis underpins better understandings of nitrile-related biology, chemistry, and ecology and will ultimately benefit the development of desirable nitrile-forming biocatalysts for practical applications.
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Affiliation(s)
- Mingyu Liu
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
| | - Shengying Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong 266237, China
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2
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Li Z, Han Q, Wang K, Song S, Xue Y, Ji X, Zhai J, Huang Y, Zhang S. Ionic liquids as a tunable solvent and modifier for biocatalysis. CATALYSIS REVIEWS 2022. [DOI: 10.1080/01614940.2022.2074359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zhuang Li
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Qi Han
- School of Science, STEM College, RMIT University, Melbourne, Victoria, Australia
| | - Kun Wang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Shaoyu Song
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Yaju Xue
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Xiuling Ji
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Jiali Zhai
- School of Science, STEM College, RMIT University, Melbourne, Victoria, Australia
| | - Yuhong Huang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
- Innovation Academy for Green Manufacture, CAS, Beijing, China
- Dalian National Laboratory for Clean Energy, CAS, Dalian, Liaoning, China
| | - Suojiang Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
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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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Karimi B, Tavakolian M, Akbari M, Mansouri F. Ionic Liquids in Asymmetric Synthesis: An Overall View from Reaction Media to Supported Ionic Liquid Catalysis. ChemCatChem 2018. [DOI: 10.1002/cctc.201701919] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Babak Karimi
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
- Research Center for Basic Sciences & Modern Technologies (RBST); Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Mina Tavakolian
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Maryam Akbari
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
| | - Fariborz Mansouri
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); Zanjan 45137-66731 Iran
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5
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Affiliation(s)
- Toshiyuki Itoh
- Department
of Chemistry and Biotechnology, Graduate School of Engineering and ‡Center for Research
on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan
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6
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Sheldon RA. Biocatalysis and Biomass Conversion in Alternative Reaction Media. Chemistry 2016; 22:12984-99. [DOI: 10.1002/chem.201601940] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Roger A. Sheldon
- Molecular Sciences Institute; School of Chemistry; University of the Witwatersrand; 2050; Johannesburg South Africa
- Department of Biotechnology; Delft University of Technology; Julianalaan 136 2628 BL Delft Netherlands
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7
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Baum S, van Rantwijk F, Stolz A. Application of a Recombinant
Escherichia coli
Whole‐Cell Catalyst Expressing Hydroxynitrile Lyase and Nitrilase Activities in Ionic Liquids for the Production of (
S
)‐Mandelic Acid and (
S
)‐Mandeloamide. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100391] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Stefanie Baum
- Institut für Mikrobiologie, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany, Fax: (+49)‐711‐685‐65725
| | - Fred van Rantwijk
- Laboratory of Biocatalysis and Organic Chemistry, Department of Biotechnology, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands
| | - Andreas Stolz
- Institut für Mikrobiologie, Universität Stuttgart, Allmandring 31, 70569 Stuttgart, Germany, Fax: (+49)‐711‐685‐65725
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8
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Dadashipour M, Asano Y. Hydroxynitrile Lyases: Insights into Biochemistry, Discovery, and Engineering. ACS Catal 2011. [DOI: 10.1021/cs200325q] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Mohammad Dadashipour
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Yasuhisa Asano
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
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9
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Brovetto M, Gamenara D, Méndez PS, Seoane GA. C-C bond-forming lyases in organic synthesis. Chem Rev 2011; 111:4346-403. [PMID: 21417217 DOI: 10.1021/cr100299p] [Citation(s) in RCA: 160] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Margarita Brovetto
- Grupo de Fisicoquímica Orgánica y Bioprocesos, Departamento de Química Orgánica, DETEMA, Facultad de Química, Universidad de la República (UdelaR), Gral. Flores 2124, 11800 Montevideo, Uruguay
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10
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Dadashipour M, Yamazaki M, Momonoi K, Tamura K, Fuhshuku KI, Kanase Y, Uchimura E, Kaiyun G, Asano Y. S-selective hydroxynitrile lyase from a plant Baliospermum montanum: molecular characterization of recombinant enzyme. J Biotechnol 2011; 153:100-10. [PMID: 21352863 DOI: 10.1016/j.jbiotec.2011.02.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 12/13/2010] [Accepted: 02/01/2011] [Indexed: 10/18/2022]
Abstract
A novel S-hydroxynitrile lyase (HNL) was purified from leaves of a plant, Baliospermum montanum, by ammonium sulfate fractionation and column chromatographies. Full-length cDNA and genomic DNA were cloned and sequenced. The latter contained two introns and one ORF encoding a 263-residue protein (subunit: 29.5 kDa). The hnl gene was expressed in Escherichia coli and the enzyme was characterized including detailed kinetic studies of 20 substrates for (S)-cyanohydrin synthesis. The enzyme exhibited the highest specific activity (178 U/mg), k(cat) (98/s) and k(cat)/K(m) ratio for piperonal. k(cat)/K(m) ratio for aromatic aldehydes was much larger than those of aliphatic aldehydes and ketones. It was strongly inhibited by AgNO₃, PMSF, phenol and methyl ethyl ketone, showed an optimum at pH 5, while having activity at range of 4-6.5. It exhibited stability at wide pH range 2.4-11, the highest activity at 20 °C, being active at 0-65 °C. The enzyme showed variations in residues involved in substrate pocket and substrate entrance channel compared to other S-selective HNLs, based on a model was built. C-terminal short truncations provided more enzyme production. Gel filtration revealed a 60-65 kDa molecular mass for this non-FAD enzyme and its C-terminally truncated forms using three buffer compositions, indicating dimeric structures.
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Affiliation(s)
- Mohammad Dadashipour
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
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11
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12
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Domínguez de María P. "Nonsolvent" applications of ionic liquids in biotransformations and organocatalysis. Angew Chem Int Ed Engl 2008; 47:6960-8. [PMID: 18651677 DOI: 10.1002/anie.200703305] [Citation(s) in RCA: 157] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The application of room-temperature ionic liquids (RTILs) as (co)solvents and/or reagents is well documented. However, RTILS also have "nonsolvent" applications in biotransformations and organocatalysis. Examples are the anchoring of substrates to RTILs; ionic-liquid-coated enzymes (ILCE) and enzyme-IL colyophilization; the construction of biocatalytic ternary reaction systems; the combination of enzymes, RTILs, membranes, and (bio)electrochemistry; and ionic-liquid-supported organocatalysts. These strategies provide more robust, more efficient, and more enantioselective bio- and organocatalysts with many practical applications. As shown herein, RTILs offer a wide range of promising alternatives to conventional chemistry.
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Affiliation(s)
- Pablo Domínguez de María
- AkzoNobel BV, Chemicals Process and Product Technology Department, Velperweg 76, P.O. Box 9300, 6800 SB Arnhem, The Netherlands.
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13
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Domínguez de María P. “Nonsolvens”-Anwendungen von ionischen Flüssigkeiten bei Biotransformationen und in der Organokatalyse. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200703305] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Xie YN, Wang SF, Zhang ZL, Pang DW. Interaction between Room Temperature Ionic Liquid [bmim]BF4 and DNA Investigated by Electrochemical Micromethod. J Phys Chem B 2008; 112:9864-8. [DOI: 10.1021/jp803655t] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ya-Ni Xie
- College of Chemistry and Molecular Sciences and State Key Laboratory of Virology, Wuhan University, Wuhan 430072, P. R. China, and Faculty of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Sheng-Fu Wang
- College of Chemistry and Molecular Sciences and State Key Laboratory of Virology, Wuhan University, Wuhan 430072, P. R. China, and Faculty of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Zhi-Ling Zhang
- College of Chemistry and Molecular Sciences and State Key Laboratory of Virology, Wuhan University, Wuhan 430072, P. R. China, and Faculty of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China
| | - Dai-Wen Pang
- College of Chemistry and Molecular Sciences and State Key Laboratory of Virology, Wuhan University, Wuhan 430072, P. R. China, and Faculty of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, P. R. China
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15
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Immobilization of ionic liquids within micro- and mesoporous materials. ZEOLITES AND RELATED MATERIALS: TRENDS, TARGETS AND CHALLENGES, PROCEEDINGS OF THE 4TH INTERNATIONAL FEZA CONFERENCE 2008. [DOI: 10.1016/s0167-2991(08)80208-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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16
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Affiliation(s)
- Fred van Rantwijk
- Laboratory of Biocatalysis and Organic Chemistry, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands.
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17
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Purkarthofer T, Skranc W, Schuster C, Griengl H. Potential and capabilities of hydroxynitrile lyases as biocatalysts in the chemical industry. Appl Microbiol Biotechnol 2007; 76:309-20. [PMID: 17607575 DOI: 10.1007/s00253-007-1025-6] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2007] [Revised: 05/02/2007] [Accepted: 05/21/2007] [Indexed: 11/29/2022]
Abstract
The application of hydroxynitrile lyases (HNLs) as catalysts for the stereoselective condensation of HCN with carbonyl compounds has been reported as early as 1908. This enzymatic C-C bond coupling reaction furnishes enantiopure cyanohydrins which serve as versatile bifunctional building blocks for chemical synthesis. Screening of natural sources led to the discovery of both (R)- and (S)-selective HNLs, and several distinctly different classes of these enzymes with substantial differences concerning sequence, structure, and mechanism have been found. Especially during the last two centuries, HNLs have been developed into valuable biocatalysts, which can be produced in recombinant form by overexpression in microbial hosts, resulting in the implementation of industrial processes utilizing these enzymes. Recently, protein engineering in combination with in silico methods gave rise to the development of a tailor-made HNL for large-scale manufacturing of a specific target cyanohydrin.
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18
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Goldberg K, Schroer K, Lütz S, Liese A. Biocatalytic ketone reduction--a powerful tool for the production of chiral alcohols--part I: processes with isolated enzymes. Appl Microbiol Biotechnol 2007; 76:237-48. [PMID: 17516064 DOI: 10.1007/s00253-007-1002-0] [Citation(s) in RCA: 273] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2007] [Revised: 04/13/2007] [Accepted: 04/15/2007] [Indexed: 11/30/2022]
Abstract
Enzymes are able to perform reactions under mild conditions, e.g., pH and temperature, with remarkable chemo-, regio-, and stereoselectivity. Because of this feature, the number of biocatalysts used in organic synthesis has rapidly increased during the last decades, especially for the production of chiral compounds. The present review highlights biotechnological processes for the production of chiral alcohols by reducing prochiral ketones. These reactions can be catalyzed by either isolated enzymes or whole cells that exhibit ketone-reducing activity. The use of isolated enzymes is often preferred because of a higher volumetric productivity and the absence of side reactions. Both types of catalysts have also deficiencies limiting their use in synthesis of chiral alcohols. Because reductase-catalyzed reactions are dependent on cofactors, one major task in process development is to provide an effective method for regeneration of the consumed cofactors. In this paper, strategies for cofactor regeneration in biocatalytic ketone reduction are reviewed. Furthermore, different processes carried out on laboratory and industrial scales using isolated enzymes are presented. Attention is turned to process parameters, e.g., conversion, yield, enantiomeric excess, and process strategies, e.g., the application of biphasic systems or methods of in situ (co)product recovery. The biocatalytic production of chiral alcohols utilizing whole cells is presented in part II of this review.
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Affiliation(s)
- Katja Goldberg
- Institute of Technical Biocatalysis, Hamburg University of Technology, 21073 Hamburg, Germany.
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20
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Chiappe C, Leandri E, Hammock BD, Morisseau C. Effect of ionic liquids on epoxide hydrolase-catalyzed synthesis of chiral 1,2-diols. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2007; 2007:162-168. [PMID: 18160974 PMCID: PMC2153531 DOI: 10.1039/b612106c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Ionic liquids (ILs) offer new possibilities for epoxide hydrolase (EH) catalyzed resolution of epoxides and for synthesis of chiral 1,2-diols. Soluble EHs from cress and mouse (csEH and msEH) and microsomal EH from rat (rmEH) were tested in several ILs. For all the enzymes tested, higher enantioselectivities were obtained in [bmim][N(Tf)(2)] and [bmim][PF(6)]. The optimized amount of water for EH activity in these ILs was established. Classical problems arising from low solubility of epoxides in water or from the high tendency of the oxirane ring to undergo chemical hydrolysis were avoided using these new media.
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Affiliation(s)
- Cinzia Chiappe
- Dipartimento di Chimica Bioorganica e Biofarmacia, via Bonanno 33, 56126, Pisa, Italy. E-mail: ; Fax: +39 50 2219660; Tel: +39 50 2219669
| | - Elsa Leandri
- Dipartimento di Chimica Bioorganica e Biofarmacia, via Bonanno 33, 56126, Pisa, Italy. E-mail: ; Fax: +39 50 2219660; Tel: +39 50 2219669
| | - Bruce D. Hammock
- Department of Entomology & Cancer Research Center, University of California, Davis, CA, 95616, USA. E-mail:
| | - Christophe Morisseau
- Department of Entomology & Cancer Research Center, University of California, Davis, CA, 95616, USA. E-mail:
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21
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Application of crude preparations of leaves from food plants for the formation of cyanohydrins with high enantiomeric excesses. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2006.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Lou WY, Zong MH, Liu YY, Wang JF. Efficient enantioselective hydrolysis of d,l-phenylglycine methyl ester catalyzed by immobilized Candida antarctica lipase B in ionic liquid containing systems. J Biotechnol 2006; 125:64-74. [PMID: 16563544 DOI: 10.1016/j.jbiotec.2006.01.017] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2005] [Accepted: 01/23/2006] [Indexed: 11/17/2022]
Abstract
Immobilized Candida antarctica lipase B (Novozym 435)-catalyzed enantioselective hydrolysis of D,L-phenylglycine methyl ester to enatiopure D-phenylglycine was successfully conducted in the systems with ionic liquids (ILs). Novozym 435 exhibited excellent activity and enantioselectivity in the system containing the IL BMIMxBF(4) compared to several typical organic solvents tested. It has been found that the cations and, particularly, the anions of ILs have a significant effect on the reaction, and the IL BMIMxBF(4), which shows to be the most suitable for the reaction, gave the highest initial rate and enantioselectivity among various ILs examined. The reaction became much less active and enantioselective in the systems with BMIMxHSO(4). Also, it was noticed that the enzymatic hydrolysis was strongly dependent on BMIMxBF(4) content in the co-solvent systems and the favorable content of the IL was 20% (v/v). Of the assayed four co-solvents and phosphate buffer, the lowest apparent K(m) and activation energy, and the highest V(max) of the reaction were achieved using 20% (v/v) BMIMxBF(4) co-solvent with phosphate buffer. Additionally, various influential variables were investigated. The optimum pH, substrate concentration, reaction temperature and shaking rate were 8.0, 80mM, 25-30 degrees Celsius and 150rpm, respectively, under which the initial rate, the residual substrate e.e. and the enantioselectivity were 2.46mM/min, 93.8% (at substrate conversion of 53.0%) and 38, respectively. When the hydrolysis was performed under reduced pressure, the initial rate (2.64mM/min) and the enantioselectivity (E=43) were boosted.
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Affiliation(s)
- Wen-Yong Lou
- College of Biological Sciences & Biotechnology, South China University of Technology, Guangzhou 510640, PR China
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Lou WY, Zong MH. Efficient kinetic resolution of (R,S)-1-trimethylsilylethanol via lipase-mediated enantioselective acylation in ionic liquids. Chirality 2006; 18:814-21. [PMID: 16917836 DOI: 10.1002/chir.20307] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Efficient enantioselective acylation of (R,S)-1-trimethylsilylethanol {(R,S)-1-TMSE} with vinyl acetate catalyzed by immobilized lipase from Candida antarctica B (i.e., Novozym 435) was successfully conducted in ionic liquids (ILs). A remarkable enhancement in the initial rate and the enantioselectivity of the acylation was observed by using ILs as the reaction media when compared to the organic solvents tested. Also, the activity, enantioselectivity, and thermostability of Novozym 435 increased with increasing hydrophobicity of ILs. Of the six ILs examined, the IL C4MIm.PF6 gave the fastest initial rate and the highest enantioselectivity, and was consequently chosen as the favorable medium for the reaction. The optimal molar ratio of vinyl acetate to (R,S)-1-TMSE, water activity, and reaction temperature range were 4:1, 0.75, and 40 -50 degrees C, respectively, under which the initial rate and the enantioselectivity (E value) were 27.6 mM/h and 149, respectively. After a reaction time of 6 h, the ee of the remaining (S)-1-TMSE reached 97.1% at the substrate conversion of 50.7%. Additionally, Novozym 435 was effectively recycled and reused in C4MIm.PF6 for five consecutive runs without substantial lose in activity and enantioselectivity. The preparative scale kinetic resolution of (R,S)-1-TMSE in C4MIm.PF6 is shown to be very promising and useful for the industrial production of enantiopure (S)-1-TMSE.
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Affiliation(s)
- Wen-Yong Lou
- Laboratory of Applied Biocatalysis, College of Biological Sciences & Biotechnology, South China University of Technology, Guangzhou, China
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Hannig F, Kehr G, Fröhlich R, Erker G. Formation of chiral ionic liquids and imidazol-2-ylidene metal complexes from the proteinogenic aminoacid l-histidine. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.07.115] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Lou WY, Xu R, Zong MH. Hydroxynitrile Lyase Catalysis in Ionic Liquid-containing Systems. Biotechnol Lett 2005; 27:1387-90. [PMID: 16215854 DOI: 10.1007/s10529-005-0686-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2005] [Accepted: 07/03/2005] [Indexed: 10/25/2022]
Abstract
The cleavage of mandelonitrile catalysed by hydroxynitrile lyases (HNL) from Prunus amygdalus (PaHNL) and Manihot esculenta (MeHNL) proceeded more rapidly in monophasic aqueous media containing 1-propyl-3-methylimidazolium tetrafluoroborate [C4MIm][BF4] than in media containing acetonitrile or THF. Both HNLs were much more thermostable in [C4MIm][BF4] than in acetonitrile or THF. The addition of each of the four ionic liquids 1-butyl-, 1-pentyl- and 1-hexyl-3-methylimidazolium tetrafluoroborates at 2-6% (v/v in the aqueous phase) increased both the enzyme activity and the product e.e. in the PaHNL-catalysed transcyanation in an aqueous/DIPE biphasic system. However, MeHNL was inactivated by the ionic liquids, as indicated by the decreased reaction rate, substrate conversion and product e.e.
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Affiliation(s)
- Wen-Yong Lou
- Department of Biotechnology, South China University of Technology, 510640, Guangzhou, P.R. China
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Lundell K, Kurki T, Lindroos M, Kanerva L. Room Temperature Ionic Liquids in the Kinetic Resolution of Adrenaline-Type Aminoethanols byBurkholderia cepacia Lipase under Normal and Microwave Conditions. Adv Synth Catal 2005. [DOI: 10.1002/adsc.200505049] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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