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Song M, Di X, Zhang Y, Sun Y, Wang Z, Yuan Z, Guo Y. The effect of enzyme loading, alcohol/acid ratio and temperature on the enzymatic esterification of levulinic acid with methanol for methyl levulinate production: a kinetic study. RSC Adv 2021; 11:15054-15059. [PMID: 35424031 PMCID: PMC8698936 DOI: 10.1039/d1ra01780b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 04/14/2021] [Indexed: 01/26/2023] Open
Abstract
Based on reaction reversibility and the law of mass action, a mathematical model was developed. By the developed model, the effect of enzyme loading, molar alcohol/acid ratio, and temperature on methyl levulinate yield was kinetically analyzed.
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Affiliation(s)
- Miaojia Song
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- CAS Key Laboratory of Renewable Energy
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development
- Guangzhou 510640
| | - Xiaohui Di
- Laboratory of Synthesis, Organic Reactivity & Catalysis
- Strasbourg Institute of Chemistry, associated with CNRS (UMR 7177)
- University of Strasbourg
- France
| | - Yu Zhang
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- CAS Key Laboratory of Renewable Energy
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development
- Guangzhou 510640
| | - Yongming Sun
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- CAS Key Laboratory of Renewable Energy
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development
- Guangzhou 510640
| | - Zhongming Wang
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- CAS Key Laboratory of Renewable Energy
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development
- Guangzhou 510640
| | - Zhenhong Yuan
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- CAS Key Laboratory of Renewable Energy
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development
- Guangzhou 510640
| | - Ying Guo
- Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences
- CAS Key Laboratory of Renewable Energy
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development
- Guangzhou 510640
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2
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Jeon MS, Park KM, Yu H, Park JY, Chang PS. Effect of intense pulsed light on the deactivation of lipase: Enzyme-deactivation kinetics and tertiary structural changes by fragmentation. Enzyme Microb Technol 2019; 124:63-69. [PMID: 30797480 DOI: 10.1016/j.enzmictec.2019.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 11/20/2018] [Accepted: 02/01/2019] [Indexed: 11/19/2022]
Abstract
The effect of intense pulsed light (IPL) irradiation on Chromobacterium viscosum lipase was investigated with a primary focus on catalytic activity and molecular structure. During IPL irradiation, lipase activity decreased significantly with increasing pulse fluence (Fp) and exposure time (te). IPL-induced deactivation kinetics were further elucidated based on a two-step series-type deactivation model (constant deactivation rate k1 >k2). Fp was found to be the dominant variable affecting the degree of lipase deactivation, and residual activity was not associated with increasing te below a certain Fp energy density (2.66 mJ/cm2), implying a critical threshold for IPL-induced deactivation of lipase. From the results of fluorescence spectroscopy and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), we determined that IPL-induced deactivation was caused by fragmentation, leading to lipase tertiary structural changes. Furthermore, the results of FindPept analysis and matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) indicated that the internal sensitive bonds of lipase were cleaved preferentially by IPL, such that IPL irradiation induced site-sensitive fragmentation and peptide bond cleavage.
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Affiliation(s)
- Min-Sik Jeon
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kyung-Min Park
- Department of Food Science and Biotechnology, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Hyunjong Yu
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jun-Young Park
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Pahn-Shick Chang
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea; Center for Food and Bioconvergence, Seoul National University, Seoul, 08826, Republic of Korea; Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
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3
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Tian L, Zhao P, Li X, Ali Z, Li X, Zhang B, Zhang H, Zhang Q. Design of Raspberry-Shaped Microcarriers with Adjustable Protrusions and Functional Groups for the Improvement of Lipase Immobilization and Biocatalysis: Environmentally Friendly Esterification of Oleic Acid for Biodiesel. ChemCatChem 2016. [DOI: 10.1002/cctc.201600413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Lei Tian
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Panpan Zhao
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Xue Li
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Zafar Ali
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Xiangjie Li
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Baoliang Zhang
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Hepeng Zhang
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Qiuyu Zhang
- Department of Applied Chemistry, School of Science; Northwestern Polytechnical University; Xi'an 710072 P. R. China
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education; Northwestern Polytechnical University; Xi'an 710072 P. R. China
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Park KM, Lee JH, Hong SC, Kwon CW, Jo M, Choi SJ, Kim K, Chang PS. Selective production of 1-monocaprin by porcine liver carboxylesterase-catalyzed esterification: Its enzyme kinetics and catalytic performance. Enzyme Microb Technol 2015; 82:51-57. [PMID: 26672448 DOI: 10.1016/j.enzmictec.2015.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 08/04/2015] [Accepted: 08/21/2015] [Indexed: 10/23/2022]
Abstract
Porcine liver carboxylesterase (PLE) belongs to carboxylesterase family (EC 3.1.1.1) as a serine-type esterase. The PLE-catalyzed esterification of capric acid with glycerol in reverse micelles was investigated on the catalytic performance and enzyme kinetics. The most suitable structure of reverse micelles was comprised of isooctane (reaction medium) and bis(2-ethylhexyl) sodium sulfosuccinate (AOT, anionic surfactant) with 0.1 of R-value ([water]/[surfactant]) and 3.0 of G/F-value ([glycerol]/[fatty acid]) for the PLE-catalyzed esterification. In the aspect of regio-selectivity, the PLE mainly produced 1-monocaprin without any other products (di- and/or tricaprins of subsequent reactions). Furthermore, the degree of esterification at equilibrium state (after 4 h from the initiation) was 62.7% under the optimum conditions at pH 7.0 and 60 °C. Based on Hanes-Woolf plot, the apparent Km and Vmax values were calculated to be 16.44 mM and 38.91 μM/min/mg protein, respectively.
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Affiliation(s)
- Kyung-Min Park
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
| | - Jong-Hyuk Lee
- Research Institute of Food and Biotechnology, SPC group, Seoul 137-887, Republic of Korea
| | - Sung-Chul Hong
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
| | - Chang Woo Kwon
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
| | - Minje Jo
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
| | - Seung Jun Choi
- Department of Food Science and Technology, and Department of Interdisciplinary Bio IT Materials, Seoul National University of Science and Technology, Seoul 139-743, Republic of Korea
| | - Keesung Kim
- Institute of Advanced Machinery and Design, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, Republic of Korea
| | - Pahn-Shick Chang
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea; Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-742, Republic of Korea.
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5
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Hong SC, Park KM, Son YH, Jung HS, Kim K, Choi SJ, Chang PS. AOT/isooctane reverse micelles with a microaqueous core act as protective shells for enhancing the thermal stability of Chromobacterium viscosum lipase. Food Chem 2015; 179:263-9. [DOI: 10.1016/j.foodchem.2015.01.120] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 01/06/2015] [Accepted: 01/27/2015] [Indexed: 11/17/2022]
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6
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Schwarze M, Pogrzeba T, Volovych I, Schomäcker R. Microemulsion systems for catalytic reactions and processes. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01121j] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This mini-review shows the diversity of microemulsion systems for catalytic reactions with the potential for process development.
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Affiliation(s)
- M. Schwarze
- Technische Universität Berlin
- Department of Chemistry
- 10623 Berlin
- Germany
| | - T. Pogrzeba
- Technische Universität Berlin
- Department of Chemistry
- 10623 Berlin
- Germany
| | - I. Volovych
- Technische Universität Berlin
- Department of Chemistry
- 10623 Berlin
- Germany
| | - R. Schomäcker
- Technische Universität Berlin
- Department of Chemistry
- 10623 Berlin
- Germany
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7
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Abstract
Surfactants are self-assembled compounds that depend on their structure and electric charge can interact as monomer or micelle with other compounds (substrates). These interactions which may catalyze or inhibit the reaction rates are studied with pseudophase, cooperativity, and stoichiometric (classical) models. In this review, we discuss applying these models to study surfactant-substrate interactions and their effects on Diels-Alder, redox, photochemical, decomposition, enzymatic, isomerization, ligand exchange, radical, and nucleophilic reactions.
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