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Dupont J, Leal BC, Lozano P, Monteiro AL, Migowski P, Scholten JD. Ionic Liquids in Metal, Photo-, Electro-, and (Bio) Catalysis. Chem Rev 2024; 124:5227-5420. [PMID: 38661578 DOI: 10.1021/acs.chemrev.3c00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Ionic liquids (ILs) have unique physicochemical properties that make them advantageous for catalysis, such as low vapor pressure, non-flammability, high thermal and chemical stabilities, and the ability to enhance the activity and stability of (bio)catalysts. ILs can improve the efficiency, selectivity, and sustainability of bio(transformations) by acting as activators of enzymes, selectively dissolving substrates and products, and reducing toxicity. They can also be recycled and reused multiple times without losing their effectiveness. ILs based on imidazolium cation are preferred for structural organization aspects, with a semiorganized layer surrounding the catalyst. ILs act as a container, providing a confined space that allows modulation of electronic and geometric effects, miscibility of reactants and products, and residence time of species. ILs can stabilize ionic and radical species and control the catalytic activity of dynamic processes. Supported IL phase (SILP) derivatives and polymeric ILs (PILs) are good options for molecular engineering of greener catalytic processes. The major factors governing metal, photo-, electro-, and biocatalysts in ILs are discussed in detail based on the vast literature available over the past two and a half decades. Catalytic reactions, ranging from hydrogenation and cross-coupling to oxidations, promoted by homogeneous and heterogeneous catalysts in both single and multiphase conditions, are extensively reviewed and discussed considering the knowledge accumulated until now.
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Affiliation(s)
- Jairton Dupont
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, P.O. Box 4021, E-30100 Murcia, Spain
| | - Bárbara C Leal
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Pedro Lozano
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, P.O. Box 4021, E-30100 Murcia, Spain
| | - Adriano L Monteiro
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Pedro Migowski
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Jackson D Scholten
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
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Highly Efficient Regioselective Acylation of Dihydromyricetin Catalyzed by Lipase in Nonaqueous Solvents. Processes (Basel) 2022. [DOI: 10.3390/pr10071368] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
This study aimed to explore the enzymatic acylation of dihydromyricetin (DHM) to synthesized DHM derivatives with a different substituted carbon chain to improve its liposolubility. In the presence of Lipozyme TL IM, DHM was butyrylated in a 96.28% conversion in methyl tert-butyl ether under the optimized conditions (molar ratio of DHM to vinyl butyrate, 1:20; lipase dosage, 0.4 U/mg DHM; temperature, 50 °C; stirrer speed, 200 rpm; reaction time, 72 h). Liquid chromatography-mass spectrometry (LC-MS) and nuclear magnetic resonance (NMR) spectroscopy revealed that two acylation products were formed; these were 7-O-acyl-DHM and 3-O-acyl-DHM. In addition, the liposolubility of the DHM derivatives increased with the increase in the substituted carbon chain length; their antioxidant activities were higher than that of DHM in the lecithin peroxidation system, and C8-DHM had a better effect. Therefore, enzymatic acylation broadens the application of DHM in a lipid system in the food field.
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Hao L, Zhang M, Li X, Xin X, Lei F, Lai X, Zhao G, Wu H. Highly efficient whole-cell biosynthesis and cytotoxicity of esculin esters. J Biotechnol 2021; 337:46-56. [PMID: 34197823 DOI: 10.1016/j.jbiotec.2021.06.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 12/17/2022]
Abstract
Esculin is a polyphenol with multiple bioactivities and poor lipophilicity. Therefore, a whole-cell catalytic strategy for esculin acylation was developed to improve its lipophilicity. A total of 12 strains were tested, among which Pseudomonas stutzeri exhibited the highest catalytic activity and mono-acylated regioselectivity. The conversion reached the highest level of 92.7 % at 24 h under the optimal conditions, when vinyl acetate was used as an acyl donor. The catalytic ability of P. stutzeri remained above 60 % after three cycles. Subsequently, five esculin esters with different lengths of fatty chains were synthesized and structurally identified. Of them, esculin-6'-O-octanoate, esculin-6'-O-laurate, and esculin-6'-O-myristate exhibited cytotoxicity on LO2 cells by inducing apoptosis and necrosis. The cytotoxicity of these three esters may attribute to their membrane-disrupting properties. This study provides a novel whole-cell biocatalytic strategy for the acylation of esculin and insight for application of esculin esters as a food additive or drug.
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Affiliation(s)
- Lisha Hao
- College of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, 510640, China.
| | - Mengmeng Zhang
- College of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, 510640, China.
| | - Xiaofeng Li
- College of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, 510640, China.
| | - Xuan Xin
- College of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, 510640, China.
| | - Faling Lei
- College of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, 510640, China.
| | - Xueneng Lai
- College of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, 510640, China.
| | - Guanglei Zhao
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, 510640, China.
| | - Hui Wu
- College of Food Science and Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong, 510640, China.
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Pedersen JN, Liu S, Zhou Y, Balle T, Xu X, Guo Z. Synergistic effects of binary ionic liquid-solvent systems on enzymatic esterification of esculin. Food Chem 2020; 310:125858. [DOI: 10.1016/j.foodchem.2019.125858] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 11/02/2019] [Accepted: 11/03/2019] [Indexed: 10/25/2022]
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Yang X, Li D, Song C, Shao P, Wang S, Wang Z, Lv Y, Wei Z. Syntheses of high molecular weight hydroxy functional copolymers by green and selective polycondensation methods. RSC Adv 2020; 10:6414-6422. [PMID: 35495984 PMCID: PMC9049703 DOI: 10.1039/d0ra00120a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 02/03/2020] [Indexed: 11/24/2022] Open
Abstract
Synthesizing hydroxy-functional linear copolymers with high molecular weights (Mn) and low branching degree (Den%) remains challenging, although there has been much headway in the area of functional copolymers. Here, we studied the effect of polymerization methods (one-step or two-step) and solvents (organic solvent: diphenyl ether or ionic liquids: [Cnmim]TF2N/BF4/PF6, n = 2, 4, 6, 8, or 10) on Mn and Den% of copolymers P(OA–GA) (1,8-octanediol adipate (O-A)/glycerol adipate (G-A)). The Mn of P(OA–GA) reached up to 53 937 g mol−1 in two-step in diphenyl ether, and the Den% of glycerol can be controlled within 30%. The physical properties of these copolymers were investigated by contact angles, differential scanning calorimetry (DSC), and in vitro biodegradation. With increasing glycerol content in the polyesters, both hydrophilic properties and degradation properties increased. This system not only facilitates the synthesis of functional polyesters with high molecular weight and low branching, but also expands the possibility of using bio-based monomers to synthesize functional polymers. High molecular weight hydroxy functional copolymers have been synthesized by two-step polycondensation.![]()
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Affiliation(s)
- Xin Yang
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Dexing Li
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Chenggang Song
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Peiyuan Shao
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Shiming Wang
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Ziqing Wang
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
| | - Yin Lv
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
| | - Zhong Wei
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi 832003
- China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
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Pedersen JN, Pérez B, Guo Z. Stability of cellulase in ionic liquids: correlations between enzyme activity and COSMO-RS descriptors. Sci Rep 2019; 9:17479. [PMID: 31767916 PMCID: PMC6877754 DOI: 10.1038/s41598-019-53523-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 10/31/2019] [Indexed: 11/12/2022] Open
Abstract
Ionic liquids (ILs) are effective in pretreating cellulose for enhanced enzymatic saccharification, however ILs can inactivate cellulases. To guide the selection of ILs, the activity of cellulase was correlated with COSMO-RS calculations and descriptors of ILs including hydrogen bond (H-bond) basicity/acidity, polarity and ion size. Trends were deduced using an anion-series and a cation-series of ionic liquids in aqueous solutions. The activity in the cation-series was best correlated with the size of varied cations, whereas the activity in the anion-series showed a pronounced correlation to H-bond basicity and polarity of different anions. COSMO-RS was further used to predict the solubility of cellulose in ILs, which was correlated with cellulase activity on IL-pretreated cellulose. The best correlations were found between the enzyme activity in the anion-series ILs and the logarithmic activity coefficients, the H-bond energy, H-bond basicity and polarizability, underlining that the anion plays a crucial role in cellulose dissolution.
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Affiliation(s)
- Jacob Nedergaard Pedersen
- Department of Engineering, Faculty of Science and Technology, Aarhus University, 8000, Aarhus, Denmark
| | - Bianca Pérez
- Department of Engineering, Faculty of Science and Technology, Aarhus University, 8000, Aarhus, Denmark.,Center for Food Technology, Danish Technological Institute, 8000, Aarhus, Denmark
| | - Zheng Guo
- Department of Engineering, Faculty of Science and Technology, Aarhus University, 8000, Aarhus, Denmark.
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Tang J, Song H, Feng X, Yohannes A, Yao S. Ionic Liquid-Like Pharmaceutical Ingredients and Applications of Ionic Liquids in Medicinal Chemistry: Development, Status and Prospects. Curr Med Chem 2019; 26:5947-5967. [DOI: 10.2174/0929867325666180605123436] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/20/2018] [Accepted: 05/31/2018] [Indexed: 11/22/2022]
Abstract
Background:As a new kind of green media and bioactive compounds with special structure, Ionic Liquids (ILs) are attracting much attention and applied widely in many fields. However, their roles and potential have not been fully recognized by many researchers of medicinal chemistry. Because of obvious differences from other traditional drugs and reagents, their uses and performance together with advantages and disadvantages need to be explored and reviewed in detail.Methods:For a systematic and explicit description of the relationship between ILs and medicinal chemistry, all of the contents were elucidated and summarized in a series of independent parts. In each part, it started from the research background or a conceptual framework and then specific examples were introduced to illustrate the theme. Finally, the important conclusions were drawn and its future was outlooked after the discussion about related key problems appearing in each mentioned research. Meanwhile, methodologies such as empirical analysis, comparison and induction were applied in different sections to exposit our subject.Results:The whole review was composed of five parts, and 148 papers were cited in total. Related basic information of ionic liquids was provided on the basis of representative references, including their concepts and important characters. Then 82 papers outlined ionic liquid-like active pharmaceutical ingredients, which unfolded with their major biological activities (antimicrobial activity, antibiofilm activity, antitumor activity, anticholinesterase activity and so on). Applications of ionic liquids in the synthesis of drugs and pharmaceutical intermediates were elaborated in 92 papers to illustrate the important roles of ILs and their extraordinary properties in this field. Moreover, new technologies (such as immobilization of IL, microwave reaction, solventfree synthesis, microreactor, etc) were introduced for further innovation. Finally, 26 papers were included to expound the status of the IL-assisted derivatization of various natural lead compounds.Conclusion:This review placed emphasis on chemical structures of ILs and their structureactivity relationships in a specific manner, leading to meaningful and valuable related information to some related fields and thus promotes further development and application of various ILs for medicinal chemistry. The deep exploration for key scientific problems is the driving force to propel their theoretical breakthrough and industrial production.
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Affiliation(s)
- Jie Tang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Hang Song
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Xueting Feng
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Alula Yohannes
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
| | - Shun Yao
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
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Omar EM, Rahman MBA, Ni B, Headley AD. The role of neutral anions in ionic liquid as solvent media for the reactivity and stereoselectivity towards asymmetric Michael addition reaction of n-pentanal with β-nitrostyrene catalyzed by L-Proline. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1604969] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Emmy M. Omar
- Integrated Chemical BioPhysics Research (ICheBP), Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia
| | - Mohd Basyaruddin A. Rahman
- Integrated Chemical BioPhysics Research (ICheBP), Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia
- Department of Chemistry Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia
| | - Bukuo Ni
- Department of Chemistry, Texas A&M University-Commerce, Commerce, TX, USA
| | - Allan D. Headley
- Department of Chemistry, Texas A&M University-Commerce, Commerce, TX, USA
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9
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A review on ionic liquids as perspective catalysts in transesterification of different feedstock oil into biodiesel. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.06.024] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Elgharbawy AA, Riyadi FA, Alam MZ, Moniruzzaman M. Ionic liquids as a potential solvent for lipase-catalysed reactions: A review. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.050] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Zhu D, Gong A, Xu Y, Kinfack Tsabing D, Wu F, Wang J. Isoquercitrin production from rutin catalyzed by naringinase under ultrasound irradiation. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.11.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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12
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Chen F, Zhang X, Du X, Yang L, Zu Y, Yang F. A new approach for obtaining trans-resveratrol from tree peony seed oil extracted residues using ionic liquid-based enzymatic hydrolysis in situ extraction. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2016.06.056] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Antonopoulou I, Varriale S, Topakas E, Rova U, Christakopoulos P, Faraco V. Enzymatic synthesis of bioactive compounds with high potential for cosmeceutical application. Appl Microbiol Biotechnol 2016; 100:6519-6543. [PMID: 27276911 PMCID: PMC4939304 DOI: 10.1007/s00253-016-7647-9] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 05/22/2016] [Accepted: 05/24/2016] [Indexed: 12/20/2022]
Abstract
Cosmeceuticals are cosmetic products containing biologically active ingredients purporting to offer a pharmaceutical therapeutic benefit. The active ingredients can be extracted and purified from natural sources (botanicals, herbal extracts, or animals) but can also be obtained biotechnologically by fermentation and cell cultures or by enzymatic synthesis and modification of natural compounds. A cosmeceutical ingredient should possess an attractive property such as anti-oxidant, anti-inflammatory, skin whitening, anti-aging, anti-wrinkling, or photoprotective activity, among others. During the past years, there has been an increased interest on the enzymatic synthesis of bioactive esters and glycosides based on (trans)esterification, (trans)glycosylation, or oxidation reactions. Natural bioactive compounds with exceptional theurapeutic properties and low toxicity may offer a new insight into the design and development of potent and beneficial cosmetics. This review gives an overview of the enzymatic modifications which are performed currently for the synthesis of products with attractive properties for the cosmeceutical industry.
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Affiliation(s)
- Io Antonopoulou
- Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 97187, Luleå, Sweden
| | - Simona Varriale
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy
| | - Evangelos Topakas
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 15700, Athens, Greece
| | - Ulrika Rova
- Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 97187, Luleå, Sweden
| | - Paul Christakopoulos
- Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 97187, Luleå, Sweden
| | - Vincenza Faraco
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy.
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Sivapragasam M, Moniruzzaman M, Goto M. Recent advances in exploiting ionic liquids for biomolecules: Solubility, stability and applications. Biotechnol J 2016; 11:1000-13. [PMID: 27312484 DOI: 10.1002/biot.201500603] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 03/30/2016] [Accepted: 05/17/2016] [Indexed: 12/21/2022]
Abstract
The technological utility of biomolecules (e.g. proteins, enzymes and DNA) can be significantly enhanced by combining them with ionic liquids (ILs) - potentially attractive "green" and "designer" solvents - rather than using in conventional organic solvents or water. In recent years, ILs have been used as solvents, cosolvents, and reagents for biocatalysis, biotransformation, protein preservation and stabilization, DNA solubilization and stabilization, and other biomolecule-based applications. Using ILs can dramatically enhance the structural and chemical stability of proteins, DNA, and enzymes. This article reviews the recent technological developments of ILs in protein-, enzyme-, and DNA-based applications. We discuss the different routes to increase biomolecule stability and activity in ILs, and the design of biomolecule-friendly ILs that can dissolve biomolecules with minimum alteration to their structure. This information will be helpful to design IL-based processes in biotechnology and the biological sciences that can serve as novel and selective processes for enzymatic reactions, protein and DNA stability, and other biomolecule-based applications.
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Affiliation(s)
- Magaret Sivapragasam
- Centre of Research in Ionic Liquids (CORIL), Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Malaysia
| | - Muhammad Moniruzzaman
- Centre of Research in Ionic Liquids (CORIL), Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Malaysia
| | - Masahiro Goto
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan.
- Center for Future Chemistry, Kyushu University, Fukuoka, Japan.
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Ziaullah, Rupasinghe HV. Sonochemical enzyme-catalyzed regioselective acylation of flavonoid glycosides. Bioorg Chem 2016; 65:17-25. [DOI: 10.1016/j.bioorg.2016.01.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 01/12/2016] [Accepted: 01/23/2016] [Indexed: 11/28/2022]
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16
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Wei T, Jia W, Yu X, Mao D. Enhancement of enzymatic synthesis of sucrose 6-acetate with Aspergillus oryzae fructosyltransferase using ionic liquid as a cosolvent. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2015.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Sun S, Hu B, Qin F, Bi Y. Comparative Study of Soybean Oil and the Mixed Fatty Acids as Acyl Donors for Enzymatic Preparation of Feruloylated Acylglycerols in Ionic Liquids. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:7261-7269. [PMID: 26194470 DOI: 10.1021/acs.jafc.5b03479] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Feruloylated acylglycerols (FAGs) are the lipophilic derivatives of ferulic acid. In this work, soybean oil (SBO) and the mixed fatty acids (MFA) were selected as fatty acyl donors, and reacted with glyceryl monoferulate (GMF) to prepare FAGs in ionic liquids (ILs). Effect of various reaction parameters (time, temperature, enzyme concentration, and substrate ratio) and ILs on the GMF conversion and the reaction selectivity for FAGs formation were investigated. Response surface methodology (RSM) based on a 3-level-4-factor Box-Behnken experimental design was employed to evaluate the inactive effect of reaction parameters. For the esterification of GMF with MFA, the maximum GMF conversion (98.9 ± 0.9%) and FAG yield (88.9 ± 0.6%) were achieved in [C10mim]PF6. However, for the transesterification of GMF with SBO, the maximum GMF conversion (94.3 ± 0.7%) and FAG yield (83.8 ± 1.0%) were obtained in [C12mim]PF6. High FAG selectivities (∼0.90) were also obtained using SBO or MFA as acyl donors.
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Affiliation(s)
- Shangde Sun
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou 450001, Henan Province, P. R. China
| | - Bingxue Hu
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou 450001, Henan Province, P. R. China
| | - Fei Qin
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou 450001, Henan Province, P. R. China
| | - Yanlan Bi
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou 450001, Henan Province, P. R. China
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18
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Ma X, Wang E, Lu Y, Wang Y, Ou S, Yan R. Acylation of Antioxidant of Bamboo Leaves with Fatty Acids by Lipase and the Acylated Derivatives' Efficiency in the Inhibition of Acrylamide Formation in Fried Potato Crisps. PLoS One 2015; 10:e0130680. [PMID: 26098744 PMCID: PMC4476655 DOI: 10.1371/journal.pone.0130680] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 05/24/2015] [Indexed: 11/18/2022] Open
Abstract
This study selectively acylated the primary hydroxyl groups on flavonoids in antioxidant of bamboo leaves (AOB) using lauric acid with Candida antarctica lipase B in tert-amyl-alcohol. The separation and isolation of acylated derivatives were performed using silica gel column chromatography with a mixture of dichloromethane/diethyl ether/methanol as eluents. Both thin layer chromatography and high-performance liquid chromatography analyses confirmed the high efficiency of the isolation process with the purified orientin-6″-laurate, isoorientin-6″-laurate, vitexin-6″-laurate, and isovitexin-6″-laurate that were obtained. The addition of AOB and acylated AOB reduced acrylamide formation in fried potato crisps. Results showed that 0.05% AOB and 0.05% and 0.1% acylated AOB groups significantly (p < 0.05) reduced the content of acrylamide in potato crisps by 30.7%, 44.5%, and 46.9%, respectively.
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Affiliation(s)
- Xiang Ma
- Department of Food Science and Engineering, College of Science and Engineering, Jinan University, Guangzhou, 510632, China
| | - Erpei Wang
- Department of Food Science and Engineering, College of Science and Engineering, Jinan University, Guangzhou, 510632, China
| | - Yuyun Lu
- Department of Food Science and Engineering, College of Science and Engineering, Jinan University, Guangzhou, 510632, China
| | - Yong Wang
- Department of Food Science and Engineering, College of Science and Engineering, Jinan University, Guangzhou, 510632, China
| | - Shiyi Ou
- Department of Food Science and Engineering, College of Science and Engineering, Jinan University, Guangzhou, 510632, China
| | - Rian Yan
- Department of Food Science and Engineering, College of Science and Engineering, Jinan University, Guangzhou, 510632, China
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Wang J, Gong A, Yang CF, Bao Q, Shi XY, Han BB, Wu XY, Wu FA. An effective biphase system accelerates hesperidinase-catalyzed conversion of rutin to isoquercitrin. Sci Rep 2015; 5:8682. [PMID: 25731802 PMCID: PMC4346833 DOI: 10.1038/srep08682] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 01/29/2015] [Indexed: 02/02/2023] Open
Abstract
Isoquercitrin is a rare, natural ingredient with several biological activities that is a key precursor for the synthesis of enzymatically modified isoquercitrin (EMIQ). The enzymatic production of isoquercitrin from rutin catalyzed by hesperidinase is feasible; however, the bioprocess is hindered by low substrate concentration and a long reaction time. Thus, a novel biphase system consisting of [Bmim][BF4]:glycine-sodium hydroxide (pH 9) (10:90, v/v) and glyceryl triacetate (1:1, v/v) was initially established for isoquercitrin production. The biotransformation product was identified using liquid chromatography-mass spectrometry, and the bonding mechanism of the enzyme and substrate was inferred using circular dichroism spectra and kinetic parameters. The highest rutin conversion of 99.5% and isoquercitrin yield of 93.9% were obtained after 3 h. The reaction route is environmentally benign and mild, and the biphase system could be reused. The substrate concentration was increased 2.6-fold, the reaction time was reduced to three tenths the original time. The three-dimensional structure of hesperidinase was changed in the biphase system, which α-helix and random content were reduced and β-sheet content was increased. Thus, the developed biphase system can effectively strengthen the hesperidinase-catalyzed synthesis of isoquercitrin with high yield.
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Affiliation(s)
- Jun Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang. 212018, P R China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang. 212018, P R China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang. 212013, P R China
| | - An Gong
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang. 212018, P R China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang. 212018, P R China
| | - Cai-Feng Yang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang. 212018, P R China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang. 212018, P R China
| | - Qi Bao
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang. 212018, P R China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang. 212018, P R China
| | - Xin-Yi Shi
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang. 212018, P R China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang. 212018, P R China
| | - Bei-Bei Han
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang. 212018, P R China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang. 212018, P R China
| | - Xiang-Yang Wu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang. 212013, P R China
| | - Fu-An Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang. 212018, P R China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang. 212018, P R China
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20
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Sun S, Hu B, Song F, Bi Y. Ionic liquids improve the selective synthesis of hydrophilic glyceryl ferulates by the enzymatic transesterification of ethyl ferulate with monostearin: Comparison with organic solvents. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400335] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shangde Sun
- Lipid Technology and Engineering; School of Food Science and Engineering; Henan University of Technology; Zhengzhou Henan Province P. R. China
| | - Bingxue Hu
- Lipid Technology and Engineering; School of Food Science and Engineering; Henan University of Technology; Zhengzhou Henan Province P. R. China
| | - Fanfan Song
- Lipid Technology and Engineering; School of Food Science and Engineering; Henan University of Technology; Zhengzhou Henan Province P. R. China
| | - Yanlan Bi
- Lipid Technology and Engineering; School of Food Science and Engineering; Henan University of Technology; Zhengzhou Henan Province P. R. China
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21
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Warnakulasuriya SN, Rupasinghe HPV. Long chain fatty acid acylated derivatives of quercetin-3-o-glucoside as antioxidants to prevent lipid oxidation. Biomolecules 2014; 4:980-93. [PMID: 25384198 PMCID: PMC4279166 DOI: 10.3390/biom4040980] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/16/2014] [Accepted: 10/27/2014] [Indexed: 11/16/2022] Open
Abstract
Flavonoids have shown promise as natural plant-based antioxidants for protecting lipids from oxidation. It was hypothesized that their applications in lipophilic food systems can be further enhanced by esterification of flavonoids with fatty acids. Quercetin-3-O-glucoside (Q3G) was esterified individually with six selected long chain fatty acids: stearic acid (STA), oleic acid (OLA), linoleic acid (LNA), α-linolenic acid (ALA), eicosapentaenoic acid (EPA) and decosahexaenoic acid (DHA), using Candida antarctica B lipase as the biocatalyst. The antioxidant activity of esterified flavonoids was evaluated using lipid oxidation model systems of poly-unsaturated fatty acids-rich fish oil and human low density lipoprotein (LDL), in vitro. In the oil-in-water emulsion, Q3G esters exhibited 50% to 100% inhibition in primary oxidation and 30% to 75% inhibition in secondary oxidation. In bulk oil, Q3G esters did not provide considerable protection from lipid oxidation; however, Q3G demonstrated more than 50% inhibition in primary oxidation. EPA, DHA and ALA esters of Q3G showed significantly higher inhibition in Cu2+- and peroxyl radical-induced LDL oxidation in comparison to Q3G.
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Affiliation(s)
- Sumudu N Warnakulasuriya
- Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada.
| | - H P Vasantha Rupasinghe
- Department of Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 5E3, Canada.
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22
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Mohammad Latif MA, Micaêlo NM, Abdul Rahman MB. Influence of anion–water interactions on the behaviour of lipases in room temperature ionic liquids. RSC Adv 2014. [DOI: 10.1039/c4ra07460b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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23
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Enzymatic acylation of isoorientin isolated from antioxidant of bamboo leaves with palmitic acid and antiradical activity of the acylated derivatives. Eur Food Res Technol 2014. [DOI: 10.1007/s00217-014-2262-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Mai NL, Koo YM. Quantitative prediction of lipase reaction in ionic liquids by QSAR using COSMO-RS molecular descriptors. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.03.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Plaza M, Pozzo T, Liu J, Gulshan Ara KZ, Turner C, Nordberg Karlsson E. Substituent effects on in vitro antioxidizing properties, stability, and solubility in flavonoids. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:3321-33. [PMID: 24650232 DOI: 10.1021/jf405570u] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Antioxidants are widely used by humans, both as dietary supplements and as additives to different types of products. The desired properties of an antioxidant often include a balance between the antioxidizing capacity, stability, and solubility. This review focuses on flavonoids, which are naturally occurring antioxidants, and different common substituent groups on flavonoids and how these affect the properties of the molecules in vitro. Hydroxyl groups on flavonoids are both important for the antioxidizing capacity and key points for further modification resulting in O-methylation, -glycosylation, -sulfation, or -acylation. The effects of O-glycosylation and acylation are discussed as these types of substitutions have been most explored in vitro concerning antioxidizing properties as well as stability and solubility. Possibilities to control the properties by enzymatic acylation and glycosylation are also reviewed, showing that depending on the choice of enzyme and substrate, regioselective results can be obtained, introducing possibilities for more targeted production of antioxidants with predesigned properties.
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Affiliation(s)
- Merichel Plaza
- Department of Chemistry, Centre for Analysis and Synthesis, and ‡Department of Chemistry, Biotechnology, Lund University , P.O. Box 124, SE-221 00 Lund, Sweden
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26
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Recent Advances in the Applications of Ionic Liquids in Protein Stability and Activity: A Review. Appl Biochem Biotechnol 2014; 172:3701-20. [DOI: 10.1007/s12010-014-0813-6] [Citation(s) in RCA: 202] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 02/14/2014] [Indexed: 01/28/2023]
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27
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Lipase-catalyzed Synthesis of Caffeic Acid Phenethyl Ester in Ionic Liquids: Effect of Specific Ions and Reaction Parameters. Chin J Chem Eng 2013. [DOI: 10.1016/s1004-9541(13)60563-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Novel and highly efficient regioselective route to helicid esters by lipozyme TLL. PLoS One 2013; 8:e80715. [PMID: 24278310 PMCID: PMC3838391 DOI: 10.1371/journal.pone.0080715] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Accepted: 10/06/2013] [Indexed: 12/04/2022] Open
Abstract
Highly regioselective acylation of helicid with fatty acid vinyl esters catalyzed by the lipase from Thermomyces lanuginosus has been successfully performed for the first time. For the enzymatic caproylation of helicid, under the optimal conditions, initial reaction rate was 33.2 mM/h, and substrate conversion and regioselectivity were greater than 99%. In addition, the acyl recognition of the enzyme in the regioselective acylation of helicid was investigated. The results showed that although 6’-O-acyl derivatives of helicid were exclusively obtained with all the tested acyl donors, the enzymatic reaction rate varied widely with different acyl donors, presumably owing to their different interactions with the active site of the lipase. It is also interesting that the different configuration of only one hydroxyl group at C-3 in helicid couldn’t affect the lipase-catalyzed esterification and helicid has the same regioselectivity as that of D-glucose and arbutin.
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29
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Sun S, Qin F, Bi Y, Chen J, Yang G, Liu W. Enhanced transesterification of ethyl ferulate with glycerol for preparing glyceryl diferulate using a lipase in ionic liquids as reaction medium. Biotechnol Lett 2013; 35:1449-54. [PMID: 23690034 DOI: 10.1007/s10529-013-1222-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 04/18/2013] [Indexed: 10/26/2022]
Abstract
Glyceryl diferulate (DFG) is a water-soluble ester of ferulic acid. A novel ionic liquid (IL) system for enzymatic transesterification of ethyl ferulate (EF) with glycerol to produce DFG was developed. Of three ILs with different anions (BF4 (-), PF6 (-) and TF2N(-)) and cations (BDMIM, OMIM, HMIM, BMIM, and EMIM), EMIMTF2N proved the best using a commercial lipase. It had a significant protective effect against thermal inactivation of the enzyme. High EF conversion (~100 %) and DFG yield (45 %) were achieved using 45 mg enzyme/ml; temperature, 70 °C; reaction time, 12 h.
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Affiliation(s)
- Shangde Sun
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou, 450001, Henan, People's Republic of China.
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30
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An efficient microwave-assisted enzyme-catalyzed regioselective synthesis of long chain acylated derivatives of flavonoid glycosides. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.01.103] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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31
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Biocatalytic synthesis, structural elucidation, antioxidant capacity and tyrosinase inhibition activity of long chain fatty acid acylated derivatives of phloridzin and isoquercitrin. Bioorg Med Chem 2013; 21:684-92. [DOI: 10.1016/j.bmc.2012.11.034] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 11/19/2012] [Accepted: 11/26/2012] [Indexed: 11/20/2022]
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32
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Gupta A, Kagliwal LD, Singhal RS. Biotransformation of polyphenols for improved bioavailability and processing stability. ADVANCES IN FOOD AND NUTRITION RESEARCH 2013; 69:183-217. [PMID: 23522797 DOI: 10.1016/b978-0-12-410540-9.00004-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Research on the functions and effects of polyphenols has gained considerable momentum in recent times. This is attributed to their bioactivities, ranging from antioxidant to anticancer activities. But their potential is seldom fully realized since their solubility and stability is quite low and their bioavailability is hampered due to extensive metabolism in the body. Biotransformation of polyphenols using enzymes, whole cell microbes, or plant cell cultures may provide an effective solution by modifying their structure while maintaining their original bioactivity. Lipase, protease, cellulase, and transferases are commonly used enzymes, with lipase being the most popular for carrying out acylation reactions. Among the whole cell microbes, Aspergillus, Bacillus, and Streptomyces sp. are the most widely used, while Eucalyptus perriniana and Capsicum frutescens are the plant cell cultures used for the production of secondary metabolites. This chapter emphasizes the development of green solvents and identification of different sources/approaches to maximize polyphenol transformation for varied applications.
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Affiliation(s)
- Apoorva Gupta
- Food Engineering and Technology Department, Institute of Chemical Technology, Matunga, Mumbai, India
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33
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Wang J, Sun GX, Yu L, Wu FA, Guo XJ. Enhancement of the selective enzymatic biotransformation of rutin to isoquercitrin using an ionic liquid as a co-solvent. BIORESOURCE TECHNOLOGY 2013; 128:156-163. [PMID: 23201508 DOI: 10.1016/j.biortech.2012.10.098] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 10/19/2012] [Accepted: 10/23/2012] [Indexed: 05/25/2023]
Abstract
An ionic liquid (IL)-containing buffer system was first applied in the conversion of rutin to isoquercitrin. High substrate solubility was achieved to enhance the selectivity and efficiency of hesperidinase-catalyzed reaction. Ten ILs were selected as co-solvents to assist catalytic reactions in this biotransformation process. The transformed products of rutin were identified by LC-MS. The [Bmim][BF(4)]-glycine-sodium hydroxide buffer (pH 9) (10:90, v/v) was found to be the best medium for the biotransformation of isoquercitrin from rutin with higher selectivity and efficiency. The reaction time was reduced by 0.33-fold while the conversion of rutin and the yield of isoquercitrin were increased by 1.67-fold and 2.33-fold. The results suggest that IL co-solvents have great potential to enhance the selectively enzymatic hydrolysis of rutin for isoquercitrin production.
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Affiliation(s)
- Jun Wang
- School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
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34
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Ma X, Yan R, Yu S, Lu Y, Li Z, Lu H. Enzymatic acylation of isoorientin and isovitexin from bamboo-leaf extracts with fatty acids and antiradical activity of the acylated derivatives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:10844-10849. [PMID: 23057589 DOI: 10.1021/jf303595e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This study enzymatically acrylates two flavonoids from bamboo-leaf extracts, isoorientin and isovitexin, with different fatty acids as acyl donors using Candida antarctica lipase B (CALB). The conversion yield ranged from 35 to 80% for fatty acids with different chain lengths. Higher isoorientin and isovitexin conversion yields (>75%) were obtained using lauric acid in tert-amyl-alcohol as the reaction medium. (1)H and (13)C nuclear magnetic resonance spectroscopy analysis showed that, in the presence of CALB, acylation occurred at the isoorientin and isovitexin primary hydroxyl group of glucose moiety and only monoesters were detected. Introducing an acyl group into isoorientin and isovitexin significantly improved their lipophilicity but reduced their antiradical activity.
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Affiliation(s)
- Xiang Ma
- Department of Food Science and Engineering, School of Science and Engineering, Jinan University, Number 601 Huangpu Road West, Guangzhou 510632, People's Republic of China.
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35
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Naushad M, Alothman ZA, Khan AB, Ali M. Effect of ionic liquid on activity, stability, and structure of enzymes: a review. Int J Biol Macromol 2012; 51:555-60. [PMID: 22732130 DOI: 10.1016/j.ijbiomac.2012.06.020] [Citation(s) in RCA: 184] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 06/12/2012] [Accepted: 06/14/2012] [Indexed: 10/28/2022]
Abstract
Ionic liquids have shown their potential as a solvent media for many enzymatic reactions as well as protein preservation, because of their unusual characteristics. It is also observed that change in cation or anion alters the physiochemical properties of the ionic liquids, which in turn influence the enzymatic reactions by altering the structure, activity, enatioselectivity, and stability of the enzymes. Thus, it is utmost need of the researchers to have full understanding of these influences created by ionic liquids before choosing or developing an ionic liquid to serve as solvent media for enzymatic reaction or protein preservation. So, in the present review, we try to shed light on effects of ionic liquids chemistry on structure, stability, and activity of enzymes, which will be helpful for the researchers in various biocatalytic applications.
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Affiliation(s)
- Mu Naushad
- Advanced Materials Research Chair, Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
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36
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Thermodynamically based solvent design for enzymatic saccharide acylation with hydroxycinnamic acids in non-conventional media. N Biotechnol 2012; 29:255-70. [DOI: 10.1016/j.nbt.2011.11.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Revised: 11/07/2011] [Accepted: 11/22/2011] [Indexed: 01/31/2023]
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37
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Liu Y, Chen D, Yan Y, Peng C, Xu L. Biodiesel synthesis and conformation of lipase from Burkholderia cepacia in room temperature ionic liquids and organic solvents. BIORESOURCE TECHNOLOGY 2011; 102:10414-10418. [PMID: 21955878 DOI: 10.1016/j.biortech.2011.08.056] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 08/05/2011] [Accepted: 08/11/2011] [Indexed: 05/31/2023]
Abstract
Biodiesel synthesis and conformation of Burkholderia cepacia lipase (BCL) were studied in 19 different room temperature ionic liquids (RTLLs) with a range of cation and anion structures. Overall, anion selection had a greater influence on biodiesel conversion than cation choice. RTILs containing Tf2N- and PF6- anions were suitable reaction media, while RTIL of [OmPy][BF4] was the best reaction medium with a biodiesel yield of 82.2±1.2%. RTILs with strong water miscible properties showed very low biodiesel yields. Conformational analysis by FT-IR revealed that higher biodiesel conversion in RTILs was correlated with a low tendency in α-helix content of BCL. An ultrasound-assisted biocatalysis process in RTILs was used to improve mass transfer rate, leading to 83% reduction of the reaction time for biodiesel production.
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Affiliation(s)
- Yun Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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