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Delavault A, Opochenska O, Schönrock S, Hollenbach R, Ochsenreither K, Syldatk C. Intensification of Enzymatic Sorbityl Laurate Production in Dissolved and Neat Systems under Conventional and Microwave Heating. ACS OMEGA 2024; 9:17163-17173. [PMID: 38645351 PMCID: PMC11024949 DOI: 10.1021/acsomega.3c10004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 04/23/2024]
Abstract
Glycolipids such as sugar alcohol esters have been demonstrated to be relevant for numerous applications across various domains of specialty. The use of organic solvents and, more recently, deep eutectic solvents (DESs) to mediate lipase-supported bioconversions is gaining potential for industrial application. However, many challenges and limitations remain such as extensive time of production and relatively low productivities among others, which must be solved to strengthen such a biocatalytic process in industry. In this context, this study focuses on the intensification of sorbityl laurate production, as a model biocatalyzed reaction using Novozym 435, investigating the relevance of temperature, heating method, and solvent system. By increasing the reaction temperature from 50 to 90 °C, the space-time yield and product yield were considerably enhanced for reactions in DES and the organic solvent 2M2B, irrespective of the heating method (conventional or microwave heating). However, positive effects in 2M2B were more pronounced with conventional heating as 98% conversion yield was reached within 90 min at 90 °C, equating thus to a nearly 4-fold increase in performance yielding 118.0 ± 3.6 g/(L·h) productivity. With DES, the overall yield and space-time yield were lower with both heating methods. However, microwave heating enabled a 2-fold increase in both performance parameters when the reaction temperature was increased from 50 to 90 °C. Compared to conventional heating, a 7-fold increase in space-time yield at 50 °C and a 16-fold increase at 90 °C were achieved in DES by microwave heating. Furthermore, microwave irradiation enabled the usage of a neat, solvent-free system, representing an initial proof of concept with productivities of up to 13.3 ± 2.3 g/(L·h).
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Affiliation(s)
- André Delavault
- Technical
Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany
| | - Oleksandra Opochenska
- Technical
Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany
| | - Sonja Schönrock
- Technical
Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany
| | - Rebecca Hollenbach
- Biotechnological
Conversion, Technikum Laubholz GmbH, Göppingen 73033, Germany
| | | | - Christoph Syldatk
- Technical
Biology, Institute of Process Engineering in Life Sciences II, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany
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2
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Liu X, Cong F, Han M, Zhang L, Wang Z, Jiang L, Liu B, Zhang S, Yang W, Su Y, Li T, Wang Y, Liu D. Copper Phthalocyanine Improving Nonaqueous Catalysis of Pseudomonas cepacia Lipase for Ester Synthesis. Appl Biochem Biotechnol 2024; 196:1786-1802. [PMID: 37368171 DOI: 10.1007/s12010-023-04339-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 06/28/2023]
Abstract
The nonaqueous catalysis of lipases is significant for synthesis of high pure esters, but they usually behave low catalytic activity due to denaturation and aggregation of enzyme protein in organic phases. To improve the nonaqueous catalysis, the inexpensive copper phthalocyanine was taken as a new carrier on which Pseudomonas cepacia lipase was immobilized by physical absorption, and used for synthesis of hexyl acetate, an important flavor, via transesterification of hexanol and vinyl acetate. Results showed that the desired loading was 10-mg lipase immobilized on 10-mg copper phthalocyanine powder. When the immobilized lipase was employed in the reaction system consisted of 1.5-mL hexanol and 1.5-mL vinyl acetate at 37°C and 160 rpm, the conversion was fivefolds of that catalyzed by native lipase after 1 h, and reached 99.0% after 8 h. In six times of 8-h reuses, the immobilized lipase behaved an activity attenuation rate 1.22% h-1, lower than 1.77% h-1 of native lipase, which meant that the immobilized lipase was more stable. Even at the room temperature and the static state without shaking or stirring, the immobilized lipase still brought conversion 42.8% after 10 h and the native lipase gave 20.1%. Obviously, the immobilized lipase is an available biocatalyst in organic phase and has great potential in food industry.
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Affiliation(s)
- Xinran Liu
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Fangdi Cong
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China.
- Biccamin (Tianjin) Biotechnology R & D Stock Co., Ltd, Tianjin, 300393, People's Republic of China.
| | - Mengyao Han
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Liwang Zhang
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Zhongli Wang
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Lu Jiang
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Bingqian Liu
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Shulin Zhang
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Wei Yang
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Yongpeng Su
- Biccamin (Tianjin) Biotechnology R & D Stock Co., Ltd, Tianjin, 300393, People's Republic of China
| | - Tao Li
- School of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, People's Republic of China
| | - Yingchao Wang
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
| | - Daying Liu
- Tianjin Key Laboratory of Aqua-ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agriculture University, Tianjin, 300392, People's Republic of China
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3
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Copper Phthalocyanine Improving Nonaqueous Catalysis of Pseudomonas cepacia Lipase for Ester Synthesis. Appl Biochem Biotechnol 2022; 194:6302-6318. [PMID: 35917103 DOI: 10.1007/s12010-022-04080-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/24/2022] [Indexed: 11/02/2022]
Abstract
The nonaqueous catalysis of lipases is significant for synthesis of high pure esters, but they usually behave low catalytic activity due to denaturation and aggregation of enzyme protein in organic phases. To improve the nonaqueous catalysis, the inexpensive copper phthalocyanine was taken as a new carrier on which Pseudomonas cepacia lipase was immobilized by physical absorption, and used for synthesis of hexyl acetate, an important flavor, via transesterification of hexanol and vinyl acetate. Results showed that the desired loading was 10 mg lipase immobilized on 10 mg copper phthalocyanine powder. When the immobilized lipase was employed in the reaction system consisted of 1.5 mL hexanol and 1.5 mL vinyl acetate at 37℃ and 160 rpm, the conversion was five fold of that catalyzed by native lipase after 1 h, and reached 99.0% after 8 h. Undergoing six times of 8-h reuses, the immobilized lipase had an activity attenuation rate 1.22% h- 1, lower than 1.77% h- 1 of native lipase, which meant that the immobilized lipase was more stable. Even at the room temperature and the static state without shaking or stirring, the immobilized lipase could bring conversion 42.8% after 10 h and the native lipase gave 20.1%. Obviously, the immobilized lipase is an available biocatalyst in organic phase and has great potential in food industry.
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Staudt A, Brack Y, Jr II, Leal ICR. Biocatalytic synthesis of monoterpene esters – A review study on the phylogenetic evolution of biocatalysts. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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5
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Chea S, Nguyen KT, Rosencrantz RR. Microwave-Assisted Synthesis of 5′-O-methacryloylcytidine Using the Immobilized Lipase Novozym 435. Molecules 2022; 27:molecules27134112. [PMID: 35807358 PMCID: PMC9268227 DOI: 10.3390/molecules27134112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/17/2022] [Accepted: 06/23/2022] [Indexed: 02/05/2023] Open
Abstract
Nucleobase building blocks have been demonstrated to be strong candidates when it comes to DNA/RNA-like materials by benefiting from hydrogen bond interactions as physical properties. Modifying at the 5′ position is the simplest way to develop nucleobase-based structures by transesterification using the lipase Novozym 435. Herein, we describe the optimization of the lipase-catalyzed synthesis of the monomer 5′-O-methacryloylcytidine with the assistance of microwave irradiation. Variable reaction parameters, such as enzyme concentration, molar ratio of the substrate, reaction temperature and reaction time, were investigated to find the optimum reaction condition in terms of obtaining the highest yield.
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Affiliation(s)
- Sany Chea
- Fraunhofer Institute of Applied Polymer Research, Biofunctionalized Materials and (Glyco) Biotechnology, Geiselbergstr. 69, 14476 Potsdam, Germany; (S.C.); (K.T.N.)
- Chair of Polymer Materials and Polymer Technologies, Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24–25, 14476 Potsdam, Germany
| | - Khac Toan Nguyen
- Fraunhofer Institute of Applied Polymer Research, Biofunctionalized Materials and (Glyco) Biotechnology, Geiselbergstr. 69, 14476 Potsdam, Germany; (S.C.); (K.T.N.)
- Institute of Chemistry, Technical University of Berlin, Str. des 17. Juni 115, 10623 Berlin, Germany
| | - Ruben R. Rosencrantz
- Fraunhofer Institute of Applied Polymer Research, Biofunctionalized Materials and (Glyco) Biotechnology, Geiselbergstr. 69, 14476 Potsdam, Germany; (S.C.); (K.T.N.)
- Correspondence:
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XIONG J, SUN W, XU H, BIAN J, SONG Y, PAN S, GAO J. Synthesis of citronella acetate by lipase catalyzed transesterification in ionic liquid and its kinetics. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.91922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Jian XIONG
- Henan University of Science and Technology, China
| | - Wenyuan SUN
- Henan University of Science and Technology, China
| | - Hanghang XU
- Henan University of Science and Technology, China
| | - Jinhui BIAN
- Luoyang Testing Center of Quality and Metrology, China
| | - Yafei SONG
- Henan University of Science and Technology, China
| | - Shengwei PAN
- Henan University of Science and Technology, China
| | - Jiayu GAO
- Henan University of Science and Technology, China
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Jaiswal KS, Rathod VK. Process Intensification of Enzymatic Synthesis of Flavor Esters: A Review. CHEM REC 2021; 22:e202100213. [PMID: 34859555 DOI: 10.1002/tcr.202100213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/20/2021] [Accepted: 10/29/2021] [Indexed: 11/08/2022]
Abstract
The conventional flavor synthesis method suffers from low yields, time inefficiency, and extreme reaction conditions. Therefore, there is a necessity for the green and novel synthesis approach to overcome these limitations. The current review presents a holistic insight into different aspects associated with the synthesis of flavor esters using the immobilized enzyme. The application of process intensification tools such as ultrasound and microwave irradiation can enhance the reaction efficiency because of higher product recovery, less formation of by-products, and decreased energy consumption. This review presents the process intensification of value-added flavor esters synthesis and the mechanism of ultrasound and microwave action on the enzyme to enhance the enzyme activity and increase the reaction rate. It also summarizes the role of process intensification in enzymatic flavor ester synthesis, followed by specific examples as reported in the literature.
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Affiliation(s)
- Kajal S Jaiswal
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga (E), Mumbai, 400019, India
| | - Virendra K Rathod
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga (E), Mumbai, 400019, India
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Yuan M, Cong F, Zhai Y, Li P, Yang W, Zhang S, Su Y, Li T, Wang Y, Luo W, Liu D, Cui Z. Rice straw enhancing catalysis of Pseudomonas fluorescens lipase for synthesis of citronellyl acetate. Bioprocess Biosyst Eng 2021; 45:453-464. [PMID: 34686911 DOI: 10.1007/s00449-021-02659-8] [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: 08/14/2021] [Accepted: 10/15/2021] [Indexed: 10/20/2022]
Abstract
Citronellyl acetate as an important flavor, can be effectively synthesized by lipase catalysis in nonaqueous system. But lipases usually behave low catalytic activity due to aggregation and denaturation of them in organic phase. To enhance the nonaqueous catalysis, based on the mechanism of lipases activated at water/oil (organic phase) interface, the inexpensive race straw was processed into powder and filaments on which Pseudomonas fluorescens lipase was immobilized by physical adsorption, used for synthesis of citronellyl acetate via transesterification of citronellol and vinyl acetate. Results showed that the desired loading was 10 mg lipase immobilized on 30 mg rice straw filaments or 25 mg rice straw powder. When the two immobilized lipases were employed in the reaction system consisted of 1-mL citronellol and 2-mL vinyl acetate at 37 ℃ and 160 rpm, the conversions all reached 99.8% after 12 h. Under the reaction condition, the conversion catalyzed by 10 mg native lipase was 85.1%. Undergoing six times of 8-h reuses in the organic system, the filament and power immobilized lipases had weak activity attenuation rates 0.36 and 0.32% h-1, lower than 1.52% h-1 of native lipase. Even at the room temperature and the static state without shaking and stirring, the rice straw filaments immobilized lipase could brought conversion 62.9% after 10 h but the native lipase only gave 37.0%. Obviously, the rice straw, especially its filaments, is an inexpensive and available natural material to prepare immobilized lipase with desired catalysis in organic phase, meant significant potential in flavor industry.
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Affiliation(s)
- Min Yuan
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China
| | - Fangdi Cong
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China. .,Biccamin (Tianjin) Biotechnology R and D Stock Co., Ltd, Tianjin, 300393, People's Republic of China.
| | - Yali Zhai
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China
| | - Ping Li
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China
| | - Wei Yang
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China
| | - Shulin Zhang
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China
| | - Yongpeng Su
- Biccamin (Tianjin) Biotechnology R and D Stock Co., Ltd, Tianjin, 300393, People's Republic of China
| | - Tao Li
- School of Life Science and Technology, Xinxiang Medical University, Xinxiang, 453003, People's Republic of China
| | - Yingchao Wang
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China
| | - Wei Luo
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China
| | - Daying Liu
- Tianjin Key Laboratory of Aqua-Ecology and Aquaculture, Tianjin Chemical Experiment Teaching Demonstration Center, College of Basic Science, Tianjin Agricultural University, Tianjin, 300392, People's Republic of China
| | - Zhongqiu Cui
- Tianjin Key Laboratory of Crop Genetics and Breeding, Tianjin Academy of Agricultural Sciences Crop Institute, Tianjin, 300384, People's Republic of China
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Microwave-assisted lipase-catalyzed synthesis of polyethylene glycol stearate in a solvent-free system. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Zarei N, Golmakani MT, Keramat M, Majdinasab M, Karami A. Process intensification for the autocatalytic esterification of citronellol using microwave radiation. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jaiswal KS, Rathod VK. Microwave-assisted synthesis of ethyl laurate using immobilized lipase: Optimization, mechanism and thermodynamic studies. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Salvi HM, Yadav GD. Process intensification using immobilized enzymes for the development of white biotechnology. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00020a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Process intensification of biocatalysed reactions using different techniques such as microwaves, ultrasound, hydrodynamic cavitation, ionic liquids, microreactors and flow chemistry in various industries is critically analysed and future directions provided.
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Affiliation(s)
- Harshada M. Salvi
- Department of Chemical Engineering
- Institute of Chemical Technology
- Mumbai-400019
- India
| | - Ganapati D. Yadav
- Department of Chemical Engineering
- Institute of Chemical Technology
- Mumbai-400019
- India
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Microwave mediated lipase-catalyzed synthesis of n-butyl palmitate and thermodynamic studies. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101741] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Czapela FF, Kubeneck S, Preczeski KP, Dalastra C, Scapini T, Bonatto C, Stefanski FS, Camargo AF, Zanivan J, Mossi AJ, Fongaro G, Treichel H. Reactional ultrasonic systems and microwave irradiation for pretreatment of agro-industrial waste to increase enzymatic activity. BIORESOUR BIOPROCESS 2020. [DOI: 10.1186/s40643-020-00338-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractPretreatment of keratinous residues using an ultrasonic reaction system provides greater enzymatic production in less time. This is a promising technology for measuring enzyme activity and microwave processes. In the present work, an ultrasonic probe reaction system was used to evaluate the potential of swine hair pretreatment. The pretreated material was submerged with non-pretreated residues for 9 days to obtain the enzyme. Enzyme activity was measured in the extracts obtained using the ultrasonic probe, ultrasonic bath, and microwave. We also used the enzymatic concentration technique with NaCl and acetone. Homemade enzymatic extracts were evaluated for their ability to degrade swine hair and chicken feathers by comparing them with the activities commercial enzymes. Macrobeads gave greater energy dissipation in less time, providing greater enzyme activity (50.8 U/mL over 3 days). In terms of waste degradation, non-pretreated swine hair was more promising. The ultrasonic probe reaction system had the potential to evaluate increased enzyme activity (38.4% relative activity) and the enzyme concentration increased activity by 53.5%. The homemade enzymatic extract showed promise for degradation of keratinous residues.
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Synthesis of Ibuprofen Monoglyceride in Solventless Medium with Novozym®435: Kinetic Analysis. Catalysts 2020. [DOI: 10.3390/catal10010076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
This study investigates the enzymatic esterification of glycerol and ibuprofen in a solventless medium catalyzed by immobilized lipase B from Candida antarctica (Novozym®435). Fixing the concentration of this enzymatic solid preparation at 30 g·L−1, and operating at a constant stirring speed of 720 rpm, the temperature was changed between 50 and 80 °C, while the initial concentration of ibuprofen was studied from 20 to 100 g·L−1. Under these conditions, the resistance of external mass transport can be neglected, as confirmed by the Mears criterion (Me < 0.15). However, the mass transfer limitation inside the pores of the support has been evidenced. The values of the effectiveness factor (η) vary between 0.08 and 0.16 for the particle size range considered according to the Weisz–Prater criteria. Preliminary runs permit us to conclude that the enzyme was deactivated at medium to high temperatures and initial concentration values of ibuprofen. Several phenomenological kinetic models were proposed and fitted to all data available, using physical and statistical criteria to select the most adequate model. The best kinetic model was a reversible sigmoidal model with pseudo-first order with respect to dissolved ibuprofen and order 2 with respect to monoester ibuprofen, assuming the total first-order one-step deactivation of the enzyme, with partial first order for ibuprofen and enzyme activity.
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Enhancing Activity by Supercritical CO 2 Mediated Immobilization of Lipase on Mesocellular Foam in Preparation of Hexyl Laurate. Appl Biochem Biotechnol 2019; 190:686-702. [PMID: 31456111 DOI: 10.1007/s12010-019-03098-8] [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: 03/31/2019] [Accepted: 07/18/2019] [Indexed: 10/26/2022]
Abstract
Hexyl laurate is employed in several cosmetics having great demand. It could be synthesized catalytically like a "natural" perfume using a lipase. The use of mesocellular foam silica (MCF) for immobilization of lipases could be made using supercritical CO2 as a medium to enhance its activity in comparison with the normal techniques. Three different catalysts were supported on MCF such as Candida antractica B (CALB), Amano AYS, and Porcine pancreas (PPL), and their activity was evaluated in the preparation of hexyl laurate from lauric acid and hexyl alcohol. CALB@ MCF was the best among all. A systematic study was conducted to assess the effects of different operating parameters. It was ternary complex mechanism with inhibition by hexyl alcohol. The enzyme was reusable and the process is green.
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17
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Lipase synthesis of isoamyl acetate using different acyl donors: Comparison of novel esterification techniques. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.10.098] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Bhavsar KV, Yadav GD. Process intensification by microwave irradiation in immobilized-lipase catalysis in solvent-free synthesis of ethyl valerate. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.09.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Enzyme-catalysed production of n-butyl palmitate using ultrasound-assisted esterification of palmitic acid in a solvent-free system. Bioprocess Biosyst Eng 2018; 41:1621-1634. [DOI: 10.1007/s00449-018-1988-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/18/2018] [Indexed: 10/28/2022]
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21
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Jaiswal KS, Rathod VK. Acoustic cavitation promoted lipase catalysed synthesis of isobutyl propionate in solvent free system: Optimization and kinetic studies. ULTRASONICS SONOCHEMISTRY 2018; 40:727-735. [PMID: 28946479 DOI: 10.1016/j.ultsonch.2017.07.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/12/2017] [Accepted: 07/19/2017] [Indexed: 05/11/2023]
Abstract
The present work highlights the effect of ultrasound on enzymatic synthesis of isobutyl propionate, a rum flavor by esterification of isobutanol and propionic acid in non-aqueous, solvent free system (SFS) using Fermase CALB™10000. The optimization study for different variables in presence of ultrasound showed a maximum conversion of 95.14% at 60°C temperature, 4% w/w enzyme dose, 1:3 acid:alcohol ratio, 40W power, 25kHz frequency, 50% duty cycle and 150rpm speed in 3h as compared to 10h of conventional method. The optimal enzyme loading was reduced to 4% w/w using ultrasound irradiation compared to 5% w/w of conventional. The efficiency of enzyme improved notably and can be reused up to seven cycles preserving its former activity. The application of ultrasound greatly enhanced esterification reactions by maintaining enzyme stability and improving the production yield. Moreover, owing towards a green approach, the synthesis is carried out in SFS for development of lucrative flavor ester. Bisubstrate kinetic models like random bi-bi, ping pong bi-bi and ordered bi-bi were applied to the experimental data using non-linear regression analysis. The experimental data and kinetic study revealed that reaction obeyed Ping-Pong bi-bi model with kinetic parameters, Vmax=50.0M/min/gcatalyst, KA=4.87×10-2M, KB=9.06×10-4M, KiA=9.8×10-1M, KiB=1.05×10-3M &SSE=2.74×10-4 for lipase catalysed synthesis of isobutyl propionate under ultrasound with inhibition by both acid and alcohol.
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Affiliation(s)
- Kajal S Jaiswal
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga (E), Mumbai 400019, India
| | - Virendra K Rathod
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga (E), Mumbai 400019, India.
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22
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Supercritical CO2 technology applied to the production of flavor ester compounds through lipase-catalyzed reaction: A review. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2017.11.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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23
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Enantioselective resolution of (R,S)-α-methyl-4-pyridinemethanol using immobilized biocatalyst: Optimization and kinetic modeling. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.03.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Tomke PD, Rathod VK. Enzyme as biocatalyst for synthesis of octyl ethanoate using acoustic cavitation: Optimization and kinetic study. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2016.04.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Hude MP, Kozinski J, Dalai AK, Yadav GD. Novelty of Penicillium camembertii Lipase Supported on Glutaraldehyde Activated-SBA-15 Mesoporous Silica for Mono-Esterification of Bioglycerol in Non-Aqueous Media. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2016. [DOI: 10.1515/ijcre-2014-0058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Hexagonal mesoporous type silica SBA-15 with pore sizes in the range 5.0–8.3 nm was synthesized using non-ionic triblock copolymer and characterized by Accelerated Surface Area Porosimetry (ASAP), FT-IR spectroscopy, X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Different lipases were immobilized in glutaraldehyde activated mesoporous SBA-15 support. The resulting supported enzymes were shown to be active and stable catalysts for esterification of glycerol with oleic acid to produce monoglyceride (MG) which is commonly used in food industry. Various parameters were studied systematically to study kinetics. MG Synthesis using enzymatic process is an environmentally friendly approach. Enzyme immobilized on SBA-15 showed the best stability and catalytic activity in organic solvents. Out of various lipases studied penicillium camembertii (Lipase G) produced MG efficiently at low temperature. Reusability was studied on immobilized enzymes. Immobilized lipase maintained 90 % of its esterification activity in non-aqueous media even after 4 cycles of use. The selectivity of Lipase G is found to be 98 % for monoacylglyceride.
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Affiliation(s)
- Moreshwar P. Hude
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai, India – 400 019
| | - Janusz Kozinski
- Department of Chemical Engineering, University of Saskatchewan, Saskatoon, Canada
| | - Ajay K. Dalai
- Department of Chemical Engineering, University of Saskatchewan, Saskatoon, Canada
| | - Ganapati D. Yadav
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai, India – 400 019
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Gao W, Wu K, Chen L, Fan H, Zhao Z, Gao B, Wang H, Wei D. A novel esterase from a marine mud metagenomic library for biocatalytic synthesis of short-chain flavor esters. Microb Cell Fact 2016; 15:41. [PMID: 26892801 PMCID: PMC4758151 DOI: 10.1186/s12934-016-0435-5] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 02/01/2016] [Indexed: 11/13/2022] Open
Abstract
Background Marine mud is an abundant and largely unexplored source of enzymes with unique properties that may be useful for industrial and biotechnological purposes. However, since most microbes cannot be cultured in the laboratory, a cultivation-independent metagenomic approach would be advantageous for the identification of novel enzymes. Therefore, with the objective of screening novel lipolytic enzymes, a metagenomic library was constructed using the total genomic DNA extracted from marine mud. Results Based on functional heterologous expression, 34 clones that showed lipolytic activity were isolated. The five clones with the largest halos were identified, and the corresponding genes were successfully overexpressed in Escherichia coli. Molecular analysis revealed that these encoded proteins showed 48–79 % similarity with other proteins in the GenBank database. Multiple sequence alignment and phylogenetic tree analysis classified these five protein sequences as new members of known families of bacterial lipolytic enzymes. Among them, EST4, which has 316 amino acids with a predicted molecular weight of 33.8 kDa, was further studied in detail due to its strong hydrolytic activity. Characterization of EST4 indicated that it is an alkaline esterase that exhibits highest hydrolytic activity towards p-nitrophenyl butyrate (specific activity: 1389 U mg−1) at 45 °C and pH 8.0. The half-life of EST4 is 55 and 46 h at 40 and 45 °C, respectively, indicating a relatively high thermostability. EST4 also showed remarkable stability in organic solvents, retaining 90 % of its initial activity when incubated for 12 h in the presence of hydrophobic alkanes. Furthermore, EST4 was used as an efficient whole-cell biocatalyst for the synthesis of short-chain flavor esters, showing high conversion rate and good tolerance for high substrate concentrations (up to 3.0 M). These results demonstrate a promising potential for industrial scaling-up to produce short-chain flavor esters at high substrate concentrations in non-aqueous media. Conclusions This manuscript reports unprecedented alcohol tolerance and conversion of an esterase biocatalyst identified from a marine mud metagenomic library. The high organic solvent tolerance and thermostability of EST4 suggest that it has great potential as a biocatalyst. Electronic supplementary material The online version of this article (doi:10.1186/s12934-016-0435-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wenyuan Gao
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Kai Wu
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Lifeng Chen
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Haiyang Fan
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Zhiqiang Zhao
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Bei Gao
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Hualei Wang
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
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Ahirwar R, Tanwar S, Bora U, Nahar P. Microwave non-thermal effect reduces ELISA timing to less than 5 minutes. RSC Adv 2016. [DOI: 10.1039/c5ra27261k] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Microwave-mediated ELISA, which occurs in less than 5 minutes, is due to a microwave non-thermal effect. We postulate that the microwave non-thermal effect is a microwave catalytic effect acting by lowering the activation energy of reactants.
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Affiliation(s)
- Rajesh Ahirwar
- CSIR-Institute of Genomics and Integrative Biology
- Mall Road Delhi
- India-110007
- Academy of Scientific and Innovative Research
- CSIR-IGIB
| | - Swati Tanwar
- CSIR-Institute of Genomics and Integrative Biology
- Mall Road Delhi
- India-110007
| | - Utpal Bora
- Department of Biosciences and Bioengineering
- Indian Institute of Technology
- Guwahati
- India
| | - Pradip Nahar
- CSIR-Institute of Genomics and Integrative Biology
- Mall Road Delhi
- India-110007
- Academy of Scientific and Innovative Research
- CSIR-IGIB
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28
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Chen CC, Reddy PM, Devi CS, Chang PC, Ho YP. Study of microwave effects on the lipase-catalyzed hydrolysis. Enzyme Microb Technol 2016; 82:164-172. [DOI: 10.1016/j.enzmictec.2015.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/06/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
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29
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Pawar SV, Yadav GD. Kinetics and mechanism of regioselective monoacetylation of 3-aryloxy-1,2-propandiols using immobilized Candida antarctica lipase. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2015.07.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Mazinani SA, DeLong B, Yan H. Microwave radiation accelerates trypsin-catalyzed peptide hydrolysis at constant bulk temperature. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Yadav GD, Pawar SV. Novelty of immobilized enzymatic synthesis of 3-ethyl-1,3-oxazolidin-2-one using 2-aminoalcohol and dimethyl carbonate: Mechanism and kinetic modeling of consecutive reactions. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.08.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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32
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Wei C, Fu XF, Wang Z, Yu XJ, Zhang YJ, Zheng JY. Efficient synthesis of vitamin E intermediate by lipase-catalyzed regioselective transesterification. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2014.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Leveneur S, Ledoux A, Estel L, Taouk B, Salmi T. Epoxidation of vegetable oils under microwave irradiation. Chem Eng Res Des 2014. [DOI: 10.1016/j.cherd.2014.04.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Kuo CH, Liu TA, Chen JH, Chang CMJ, Shieh CJ. Response surface methodology and artificial neural network optimized synthesis of enzymatic 2-phenylethyl acetate in a solvent-free system. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2014. [DOI: 10.1016/j.bcab.2013.12.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Devendran S, Yadav GD. Lipase-catalyzed kinetic resolution of (±)-1-(2-furyl) ethanol in nonaqueous media. Chirality 2014; 26:286-92. [PMID: 24733779 DOI: 10.1002/chir.22317] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Accepted: 02/03/2014] [Indexed: 12/20/2022]
Abstract
S-1-(2-Furyl) ethanol serves as an important chiral building block for the preparation of various natural products, fine chemicals, and is widely used in the chemical and pharmaceutical industries. In this work, lipase-catalyzed kinetic resolution of (R/S)-1-(2-furyl) ethanol using different acyl donors was investigated. Vinyl esters are good acyl donors vis-à-vis alkyl esters for kinetic resolution. Among them, vinyl acetate was found to be the best acyl donor. Different immobilized lipases such as Rhizomucor miehei lipase, Thermomyces lanuginosus lipase, and Candida antarctica lipase B were evaluated for this reaction, among which C. antarctica lipase B, immobilized on acrylic resin (Novozym 435), was found to be the best catalyst in n-heptane as solvent. The effect of various parameters was studied in a systematic manner. Maximum conversion of 47% and enantiomeric excess of the substrate (ees ) of 89% were obtained in 2 h using 5 mg of enzyme loading with an equimolar ratio of alcohol to vinyl acetate at 60 °C at a speed of 300 rpm in a batch reactor. From the analysis of progress curve and initial rate data, it was concluded that the reaction followed the ordered bi-bi mechanism with dead-end ester inhibition. Kinetic parameters were obtained by using nonlinear regression. This process is more economical, green, and easily scalable than the chemical processes.
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Affiliation(s)
- Saravanan Devendran
- Department of Chemical Engineering, Institute of Chemical Technology, Nathalal Parekh Marg, Mumbai-400019, India
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36
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Optimization of lipase-catalyzed synthesis of acetylated EGCG by response surface methodology. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.08.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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37
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Jakovetić SM, Luković ND, Bošković-Vragolović NM, Bezbradica DI, Picazo-Espinosa R, Knežević-Jugović ZD. Comparative Study of Batch and Fluidized Bed Bioreactors for Lipase-Catalyzed Ethyl Cinnamate Synthesis. Ind Eng Chem Res 2013. [DOI: 10.1021/ie402069c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sonja M. Jakovetić
- Department
of Biochemical Engineering and Biotechnology, Faculty of Technology
and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Nevena D. Luković
- Department
of Biochemical Engineering and Biotechnology, Faculty of Technology
and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Nevenka M. Bošković-Vragolović
- Department
of Chemical Engineering, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Dejan I. Bezbradica
- Department
of Biochemical Engineering and Biotechnology, Faculty of Technology
and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Rafael Picazo-Espinosa
- Water
Research Institute (Instituto Universitario de Investigación
del Agua), University of Granada, Ramon y Cajal 4, 18071 Granada, Spain
| | - Zorica D. Knežević-Jugović
- Department
of Biochemical Engineering and Biotechnology, Faculty of Technology
and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
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38
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Dhake KP, Thakare DD, Bhanage BM. Lipase: A potential biocatalyst for the synthesis of valuable flavour and fragrance ester compounds. FLAVOUR FRAG J 2013. [DOI: 10.1002/ffj.3140] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Kishor P. Dhake
- Department of Chemistry; Institute of Chemical Technology; Matunga; Mumbai; 400 019; India
| | - Dinesh D. Thakare
- Department of Chemistry; Institute of Chemical Technology; Matunga; Mumbai; 400 019; India
| | - Bhalchandra M. Bhanage
- Department of Chemistry; Institute of Chemical Technology; Matunga; Mumbai; 400 019; India
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39
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Lipase-catalyzed transesterification synthesis of citronellyl acetate in a solvent-free system and its reaction kinetics. Eur Food Res Technol 2012. [DOI: 10.1007/s00217-012-1819-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Lipase catalyzed kinetic resolution of (±)-1-(1-naphthyl) ethanol under microwave irradiation. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcatb.2012.05.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Damm M, Nusshold C, Cantillo D, Rechberger GN, Gruber K, Sattler W, Kappe CO. Can electromagnetic fields influence the structure and enzymatic digest of proteins? A critical evaluation of microwave-assisted proteomics protocols. J Proteomics 2012; 75:5533-43. [PMID: 22889711 PMCID: PMC3484400 DOI: 10.1016/j.jprot.2012.07.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 07/27/2012] [Accepted: 07/27/2012] [Indexed: 10/31/2022]
Abstract
This study reevaluates the putative advantages of microwave-assisted tryptic digests compared to conventionally heated protocols performed at the same temperature. An initial investigation of enzyme stability in a temperature range of 37-80 °C demonstrated that trypsin activity declines sharply at temperatures above 60 °C, regardless if microwave dielectric heating or conventional heating is employed. Tryptic digests of three proteins of different size (bovine serum albumin, cytochrome c and β-casein) were thus performed at 37 °C and 50 °C using both microwave and conventional heating applying accurate internal fiber-optic probe reaction temperature measurements. The impact of the heating method on protein degradation and peptide fragment generation was analyzed by SDS-PAGE and MALDI-TOF-MS. Time-dependent tryptic digestion of the three proteins and subsequent analysis of the corresponding cleavage products by MALDI-TOF provided virtually identical results for both microwave and conventional heating. In addition, the impact of electromagnetic field strength on the tertiary structure of trypsin and BSA was evaluated by molecular mechanics calculations. These simulations revealed that the applied field in a typical laboratory microwave reactor is 3-4 orders of magnitude too low to induce conformational changes in proteins or enzymes.
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Affiliation(s)
- Markus Damm
- Christian Doppler Laboratory for Microwave Chemistry (CDLMC) and Institute of Chemistry, Karl-Franzens-University Graz, Heinrichstrasse 28/I, A-8010 Graz, Austria
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42
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Yadav GD, Pawar SV. Insight into microwave irradiation and enzyme catalysis in enantioselective resolution of dl-(±)-3-phenyllactic acid. Appl Microbiol Biotechnol 2012; 96:69-79. [DOI: 10.1007/s00253-012-4183-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Revised: 03/25/2012] [Accepted: 05/15/2012] [Indexed: 11/29/2022]
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43
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Yadav GD, Pawar SV. Synergism between microwave irradiation and enzyme catalysis in transesterification of ethyl-3-phenylpropanoate with n-butanol. BIORESOURCE TECHNOLOGY 2012; 109:1-6. [PMID: 22305539 DOI: 10.1016/j.biortech.2012.01.030] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 01/08/2012] [Accepted: 01/09/2012] [Indexed: 05/31/2023]
Abstract
Lipase catalyzed transesterification was investigated to study the synergistic effect of microwave irradiation and enzyme catalysis. Transesterification of ethyl-3-phenylpropanoate with n-butanol was chosen as the model reaction using immobilized enzymes such as Novozyme 435, Lipozyme RMIM and Lipozyme TL IM with microwave irradiation. Novozyme 435 was the best catalyst. The effect of various parameters affecting the conversion and initial rates of transesterification were studied to establish kinetics and mechanism. There is synergism between enzyme catalysis and microwave irradiation. The analysis of initial rate data and progress curve data showed that the reaction obeys the Ping-Pong bi-bi mechanism with inhibition by n-butanol. The theoretical predictions and experimental data match very well. These studies were also extended to other alcohols such as 2-phenyl-1-propanol, n-octanol, benzyl alcohol, iso-amyl alcohol, 2-hexanol and 2-pentanol under otherwise similar conditions.
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Affiliation(s)
- Ganapati D Yadav
- Department of Chemical Engineering, Institute of Chemical Technology, University of Mumbai,(1) Matunga, Mumbai 400 019, India.
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44
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Yadav GD, Devendran S. Lipase catalyzed synthesis of cinnamyl acetate via transesterification in non-aqueous medium. Process Biochem 2012. [DOI: 10.1016/j.procbio.2011.12.008] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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45
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Esterification of benzoic acid and glycerol to α-monobenzoate glycerol in solventless media using an industrial free Candida antarctica lipase B. Process Biochem 2012. [DOI: 10.1016/j.procbio.2011.10.037] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Lukasiewicz M, Kowalski S. Low power microwave-assisted enzymatic esterification of starch. STARCH-STARKE 2011. [DOI: 10.1002/star.201100095] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Sontakke JB, Yadav GD. Kinetic Modeling and Statistical Optimization of Lipase Catalyzed Enantioselective Resolution of (R,S)-2-pentanol. Ind Eng Chem Res 2011. [DOI: 10.1021/ie2012032] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jyoti B. Sontakke
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai, 400 019 India
| | - Ganapati D. Yadav
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai, 400 019 India
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48
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Accelerated sample treatment for screening of banned doping substances by GC–MS: ultrasonication versus microwave energy. Anal Bioanal Chem 2010; 399:861-75. [DOI: 10.1007/s00216-010-4319-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2010] [Revised: 09/15/2010] [Accepted: 10/10/2010] [Indexed: 10/18/2022]
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