1
|
Wang H, Masuku MV, Tao Y, Yang J, Kuang Y, Lyu C, Huang J, Yang S. Improved Stability and Catalytic Efficiency of ω-Transaminase in Aqueous Mixture of Deep Eutectic Solvents. Molecules 2023; 28:molecules28093895. [PMID: 37175305 PMCID: PMC10180074 DOI: 10.3390/molecules28093895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/21/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
The efficient biosynthesis of chiral amines at an industrial scale to meet the high demand from industries that require chiral amines as precursors is challenging due to the poor stability and low catalytic efficiency of ω-transaminases (ω-TAs). Herein, this study adopted a green and efficient solvent engineering method to explore the effects of various aqueous solutions of deep eutectic solvents (DESs) as cosolvents on the catalytic efficiency and stability of ω-TA. Binary- and ternary-based DESs were used as cosolvents in enhancing the catalytic activity and stability of a ω-TA variant from Aspergillus terreus (E133A). The enzyme exhibited a higher catalytic activity in a ternary-based DES that was 2.4-fold higher than in conventional buffer. Moreover, the thermal stability was enhanced by a magnitude of 2.7, with an improvement in storage stability. Molecular docking studies illustrated that the most potent DES established strong hydrogen bond interactions with the enzyme's amino acid, which enhanced the catalytic efficiency and improved the stability of the ω-TA. Molecular docking is essential in designing DESs for a specific enzyme.
Collapse
Affiliation(s)
- Hongpeng Wang
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Mercy Vimbai Masuku
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Yachen Tao
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Jiayao Yang
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Yi Kuang
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou 311300, China
| | - Changjiang Lyu
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Jun Huang
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Shengxiang Yang
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Hangzhou 311300, China
| |
Collapse
|
2
|
Acidic natural deep eutectic solvents as dual solvents and catalysts for the solubilization and deglycosylation of soybean isoflavone extracts: Genistin as a model compound. Food Chem 2023; 406:134999. [PMID: 36459802 DOI: 10.1016/j.foodchem.2022.134999] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 11/02/2022] [Accepted: 11/16/2022] [Indexed: 11/21/2022]
Abstract
This study investigated the possibility of using green solvent natural deep eutectic solvents (NADESs) as dual solvent-catalysts for the solubilization and deglycosylation of soybean isoflavones. The deglycosylation behavior of genistin as a model compound in NADESs was compared. Acidic NADESs showed moderate solubility for genistin and could hydrolyze it to form genistein. The onset temperature of deglycosylation in the choline chloride/malic acid (Ch-Ma) was 60 °C. The solubilities of genistin in the Ch-Ma system were modeled. The dissolution process was endothermic and mainly enthalpy-driven. The deglycosylation followed first-order kinetics with a half-life (t1/2) of 40 min at 90 °C. The method was validated using soybean isoflavone extracts as a substrate and the ratio of glycoside to aglycone in the extracts could be adjusted by changing the conditions. The methods have great potential in the extraction and preparation of ready-to-use isoflavone extracts from soybean and other legumes.
Collapse
|
3
|
Chen J, Cheng Q, Ma Q, Wu Y, Zhang L. Salidroside synthesis via glycosylation by β-D-glucosidase immobilized on chitosan microspheres in deep eutectic solvents. BIOCATAL BIOTRANSFOR 2023. [DOI: 10.1080/10242422.2023.2178308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Jue Chen
- College of Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, PR China
| | - Qibin Cheng
- Institute of Molecule Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, PR China
| | - Qianqian Ma
- College of Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, PR China
| | - Yuqi Wu
- College of Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, PR China
| | - Liwei Zhang
- Institute of Molecule Science, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, PR China
| |
Collapse
|
4
|
Karkeszová K, Antošová M, Potocká EK, Mastihuba V, Polakovič M. Medium engineering of phenylethanoid transfructosylation catalysed by yeast β-fructofuranosidase. Bioprocess Biosyst Eng 2023; 46:237-249. [PMID: 36463528 DOI: 10.1007/s00449-022-02828-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/30/2022] [Indexed: 12/07/2022]
Abstract
Tyrosol and hydroxytyrosol, by-products of olive oil production, are valuable substrates for enzymatic transglycosylation that can provide products with pharmaceutical potential. Phenylethanoid fructosides are produced from sucrose and phenylethanoids by the catalytic action of β-fructofuranosidases. This work dealt with the potential of the most abundant β-fructofuranosidase, baker's yeast invertase, for this bioconversion. The effects of sucrose and phenylethanoid concentrations were investigated with a focus on the selectivity of phenylethanoid transfructosylation and fructoside yields. For this purpose, initial rate and progress curve experiments were carried out for the initial (hydroxy)tyrosol and sucrose concentrations of 0.072-0.3 M and 1-2 M, respectively. Reaction courses exhibited either a maximum or plateau of fructoside yield in the range of about 10-18%. The addition of deep eutectic solvents was applied in the concentration range from 5 to 70% (v/v) to investigate the possibility of shifting the reaction equilibrium towards fructoside synthesis.
Collapse
Affiliation(s)
- Klaudia Karkeszová
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Monika Antošová
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Elena Karnišová Potocká
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 38, Bratislava, Slovakia
| | - Vladimír Mastihuba
- Institute of Chemistry, Slovak Academy of Sciences, Dúbravská Cesta 9, 845 38, Bratislava, Slovakia
| | - Milan Polakovič
- Department of Chemical and Biochemical Engineering, Faculty of Chemical and Food Technology, Institute of Chemical and Environmental Engineering, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
| |
Collapse
|
5
|
Zhang C, Fu Y, Gao W, Bai T, Cao T, Jin J, Xin B. Deep Eutectic Solvent-Mediated Electrocatalysts for Water Splitting. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228098. [PMID: 36432198 PMCID: PMC9694663 DOI: 10.3390/molecules27228098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/07/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
As green, safe, and cheap solvents, deep eutectic solvents (DESs) provide tremendous opportunities to open up attractive perspectives for electrocatalysis. In this review, the achievement of DESs in the preparation of catalysts for electrolytic water splitting is described in detail according to their roles combined with our own work. DESs are generally employed as green media, templates, and electrolytes. A large number of hydrogen bonds in DESs result in supramolecular structures which have the ability to shape the morphologies of nanomaterials and then tune their performance. DESs can also serve as reactive reagents of metal electrocatalysts through directly participating in synthesis. Compared with conventional heteroatom sources, they have the advantages of high safety and designability. The "all-in-one" transformation strategy is expected to realize 100% atomic transformation of reactants. The aim of this review is to offer readers a deeper understanding on preparing DES-mediated electrocatalysts with higher performance for water splitting.
Collapse
Affiliation(s)
- Chenyun Zhang
- School of Intelligent Manufacturing, Wuxi Vocational College of Science and Technology, Wuxi 214028, China
| | - Yongqi Fu
- School of Intelligent Manufacturing, Wuxi Vocational College of Science and Technology, Wuxi 214028, China
| | - Wei Gao
- College of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, China
| | - Te Bai
- School of Intelligent Manufacturing, Wuxi Vocational College of Science and Technology, Wuxi 214028, China
| | - Tianyi Cao
- School of Intelligent Manufacturing, Wuxi Vocational College of Science and Technology, Wuxi 214028, China
| | - Jianjiao Jin
- School of Intelligent Manufacturing, Wuxi Vocational College of Science and Technology, Wuxi 214028, China
| | - Bingwei Xin
- College of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, China
- Correspondence: ; Tel.: +86-13685345517
| |
Collapse
|
6
|
Makkliang F, Siriwarin B, Yusakul G, Phaisan S, Sakdamas A, Chuphol N, Putalun W, Sakamoto S. Biocompatible natural deep eutectic solvent-based extraction and cellulolytic enzyme-mediated transformation of Pueraria mirifica isoflavones: a sustainable approach for increasing health-bioactive constituents. BIORESOUR BIOPROCESS 2021; 8:76. [PMID: 38650188 PMCID: PMC10992110 DOI: 10.1186/s40643-021-00428-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 08/07/2021] [Indexed: 11/10/2022] Open
Abstract
The presence of specific gut microflora limits the biotransformation of Pueraria mirifica isoflavone (PMI) glycosides into absorbable aglycones, thus limiting their health benefits. Cellulolytic enzyme-assisted extraction (CAE) potentially solves this issue; however, solvent extraction requires recovery of the hydrophobic products. Here, we established the simultaneous transformation and extraction of PMIs using cellulolytic enzymes and natural deep eutectic solvents (NADESs). The NADES compositions were optimized to allow the use of NADESs as CAE media, and the extraction parameters were optimized using response surface methodology (RSM). The optimal conditions were 14.7% (v/v) choline chloride:propylene glycol (1:2 mol ratio, ChCl:PG) at 56.1 °C for the cellulolytic enzyme (262 mU/mL) reaction in which daidzin and genistin were extracted and wholly transformed to their aglycones daidzein and genistein. The extraction of PMIs using ChCl:PG is more efficient than that using conventional solvents; additionally, biocompatible ChCl:PG enhances cellulolytic enzyme activity, catalyzing the transformation of PMIs into compounds with higher estrogenicity and absorbability.
Collapse
Affiliation(s)
- Fonthip Makkliang
- School of Languages and General Education, Walailak University, Nakhon Si Thammarat, Thailand
| | - Boondaree Siriwarin
- Faculty of Pharmaceutical Sciences, Huachiew Chalermprakiet University, Samut Prakan, Thailand
| | - Gorawit Yusakul
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, 80160, Thailand.
- Biomass and Oil Palm Center of Excellence, Walailak University, Nakhon Si Thammarat, Thailand.
| | - Suppalak Phaisan
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Attapon Sakdamas
- School of Pharmacy, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Natthapon Chuphol
- Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla, Thailand
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Seiichi Sakamoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Higashi-ku, Fukuoka, Japan
| |
Collapse
|
7
|
Panić M, Radović M, Maros I, Jurinjak Tušek A, Cvjetko Bubalo M, Radojčić Redovniković I. Development of environmentally friendly lipase-catalysed kinetic resolution of (R,S)-1-phenylethyl acetate using aqueous natural deep eutectic solvents. Process Biochem 2021. [DOI: 10.1016/j.procbio.2020.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
8
|
Płotka-Wasylka J, de la Guardia M, Andruch V, Vilková M. Deep eutectic solvents vs ionic liquids: Similarities and differences. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105539] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
9
|
Han X, Li W, Duan Z, Ma X, Fan D. Biocatalytic production of compound K in a deep eutectic solvent based on choline chloride using a substrate fed-batch strategy. BIORESOURCE TECHNOLOGY 2020; 305:123039. [PMID: 32114302 DOI: 10.1016/j.biortech.2020.123039] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 06/10/2023]
Abstract
This study involved the development of a β-glucosidase-catalyzed hydrolysis method based on a deep eutectic solvent (DES), choline chloride-ethylene glycol 2:1, and continuous feed technique to overcome the difficulty of high-concentration ginsenoside hydrolysis. A productivity of 142 mg·L-1·h-1 was achieved with the following conditions: 30 vol% DES, pH 5.0, 55 °C, and substrate concentration of 12 mM. In the presence of DES, the affinity and catalytic efficiency of β-glucosidase to Rd increased by 49 and 64%, respectively, which promoted the continuation of hydrolysis. Moreover, conformation of β-glucosidase was mostly retained, as confirmed by spectral information. Through a combination of a substrate fed-batch technique to reduce the inhibitory effects of substrates and products, the CK conversion rate increased by 44% compared to traditional single-batch in pure buffer. This report describes a practical method for the continuous conversion of natural compounds through biological processes and solvent engineering.
Collapse
Affiliation(s)
- Xin Han
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Biotech. & Biomed. Research Institute, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China
| | - Weina Li
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Biotech. & Biomed. Research Institute, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Xi'an Giant Biogene Co., Ltd, Xi'an, Shaanxi 710065, China
| | - Zhiguang Duan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Biotech. & Biomed. Research Institute, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China
| | - Xiaoxuan Ma
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Biotech. & Biomed. Research Institute, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China; Biotech. & Biomed. Research Institute, Northwest University, 229 North Taibai Road, Xi'an, Shaanxi 710069, China.
| |
Collapse
|
10
|
Pätzold M, Siebenhaller S, Kara S, Liese A, Syldatk C, Holtmann D. Deep Eutectic Solvents as Efficient Solvents in Biocatalysis. Trends Biotechnol 2019; 37:943-959. [PMID: 31000203 DOI: 10.1016/j.tibtech.2019.03.007] [Citation(s) in RCA: 158] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 02/21/2019] [Accepted: 03/05/2019] [Indexed: 11/26/2022]
Abstract
'Ideal' solvents in biocatalysis have to fulfill a large number of requirements, such as high substrate solubility, high enzyme activity and stability, and positive effects on reaction equilibrium. In the past decades, many enzymatic synthesis routes in water-based and nonaqueous (organic solvents, ionic or supercritical fluids) reaction media have been developed. However, no solvent meets every demand for different reaction types at the same time, and there is still a need for novel solvents suited for different reaction types and applications. Deep eutectic solvents (DESs) have recently been evaluated as solvents in different biocatalytic reactions. They can improve substrate supply, conversion, and stability. The best results were obtained when the DES is formed by the substrates of an enzymatic reaction.
Collapse
Affiliation(s)
- Magdalena Pätzold
- DECHEMA Research Institute, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486 Frankfurt am Main, Germany; Hamburg University of Technology, Institute of Technical Biocatalysis, Denickestr. 15, 21073 Hamburg, Germany
| | - Sascha Siebenhaller
- Karlsruhe Institute of Technology, Institute of Process Engineering in Life Sciences 2 - Technical Biology, Fritz-Haber-Weg 4, 76131 Karlsruhe, Germany
| | - Selin Kara
- Hamburg University of Technology, Institute of Technical Biocatalysis, Denickestr. 15, 21073 Hamburg, Germany; Aarhus University, Department of Engineering, Biocatalysis and Bioprocessing Group, Gustav Wieds Vej 10, 8000 Aarhus, Denmark
| | - Andreas Liese
- Hamburg University of Technology, Institute of Technical Biocatalysis, Denickestr. 15, 21073 Hamburg, Germany
| | - Christoph Syldatk
- Karlsruhe Institute of Technology, Institute of Process Engineering in Life Sciences 2 - Technical Biology, Fritz-Haber-Weg 4, 76131 Karlsruhe, Germany
| | - Dirk Holtmann
- DECHEMA Research Institute, Industrial Biotechnology, Theodor-Heuss-Allee 25, 60486 Frankfurt am Main, Germany.
| |
Collapse
|
11
|
Huang J, Guo X, Xu T, Fan L, Zhou X, Wu S. Ionic deep eutectic solvents for the extraction and separation of natural products. J Chromatogr A 2019; 1598:1-19. [PMID: 31005289 DOI: 10.1016/j.chroma.2019.03.046] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 12/27/2022]
Abstract
Room ionic liquids (ILs) used as green solvents have received considerable attention and wide application in different research and industrial fields, such as chemistry, biology, catalysis, energy, and even environmental sciences. Recently, a new class of sustainable solvents named deep eutectic solvents (DESs) have been developed, which share the promising solvent characteristics of ILs, such as thermal and chemical stability, low vapor pressure and design ability. In addition, the major advantages of DESs over ILs are their lower prices and easier preparation. Therefore, DESs have been considered to be a potential alternative to replace conventional organic solvents and ILs. Currently, the developed DESs may be classified into ionic and nonionic liquids. Typically, choline chloride (ChCl)/urea (1:2) is an ionic DES, while glucose/sucrose (1:1) is a nonionic DES. Although several reviews have covered advancements in DESs, in this review, we aim to provide a general insight into DESs, particularly ionic DESs, like choline-based DES, in terms of their preparation and application in the extraction of natural products (NPs) mainly from traditional Chinese medicines and the recovery of extracted compounds from their extracts. Additionally, various factors affecting the extraction efficiency of DESs are discussed.
Collapse
Affiliation(s)
- Jie Huang
- Research Center of Siyuan Natural Pharmacy and Biotoxicology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Xiuyun Guo
- Research Center of Siyuan Natural Pharmacy and Biotoxicology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Tianyi Xu
- Research Center of Siyuan Natural Pharmacy and Biotoxicology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Lanyan Fan
- Research Center of Siyuan Natural Pharmacy and Biotoxicology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Xinpeng Zhou
- Research Center of Siyuan Natural Pharmacy and Biotoxicology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang Province 310058, China
| | - Shihua Wu
- Research Center of Siyuan Natural Pharmacy and Biotoxicology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang Province 310058, China.
| |
Collapse
|
12
|
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.
Collapse
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
| |
Collapse
|