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da Silva MVC, Rangel ABS, Rosa CMR, de Assis GP, Aguiar LG, de Freitas L. Development of a magnetically stabilized fluidized bed bioreactor for enzymatic synthesis of 2-ethylhexyl oleate. Bioprocess Biosyst Eng 2023; 46:1665-1676. [PMID: 37815609 DOI: 10.1007/s00449-023-02928-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 09/19/2023] [Indexed: 10/11/2023]
Abstract
This study aimed to develop and investigate the synthesis of 2-ethylhexyl oleate catalyzed by Candida antarctica lipase immobilized on magnetic poly(styrene-co-divinylbenzene) (STY-DVB-M) particles in a magnetically stabilized fluidized bed reactor (MSFBR) operated in continuous mode. The physical properties of the copolymer were characterized by Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The glass transition temperature was 85.68 °C, and the onset of thermal degradation occurred at 406.66 °C. Syntheses were performed at 50 °C using a space time of 12 h and a bed porosity of 0.892. Assays were conducted to assess the influence of magnetic field intensity (5 to 15 mT) on reaction yield, ester concentration, and productivity. The highest productivity was 0.850 ± 0.023 mmol g-1 h-1, obtained with a magnetic field intensity of 15 mT. An operational stability test was performed under these conditions, revealing a biocatalyst half-life of 2148 h (179 operation cycles) and a thermal deactivation constant of 3.23 × 10-4 h-1 (R2 = 0.9446). Computational simulations and mathematical modeling were performed using Scilab based on ping-pong bi-bi kinetics and molar balances of reaction species. The model provided consistent results of interstitial velocity and good prediction of reaction yields, with R2 = 0.926. These findings demonstrate that the studied technique can provide improvements in biocatalytic processes, representing a promising strategy for the enzymatic synthesis of 2-ethylhexyl oleate.
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Affiliation(s)
- Mateus V C da Silva
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Amanda B S Rangel
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Cíntia M R Rosa
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Gabrielle P de Assis
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Leandro G Aguiar
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Larissa de Freitas
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil.
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Dashtipour B, Dehghanpour S, Sharbatdaran M. Improvement of the acidic properties of MOF by doped SnO2 quantum dots for the production of solketal. J CHEM SCI 2022. [DOI: 10.1007/s12039-022-02103-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2022]
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Lipase-catalyzed synthesis of 2-ethylhexyl palmitate in a solvent free system using step changes in temperature. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108261] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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da Silva MVC, Rangel ABS, Aguiar LG, de Castro HF, de Freitas L. Continuous Enzymatic Synthesis of 2-Ethylhexyl Oleate in a Fluidized Bed Reactor: Operating Conditions, Hydrodynamics, and Mathematical Modeling. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03504] [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]
Affiliation(s)
- Mateus V. C. da Silva
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, São Paulo 12602-810, Brazil
| | - Amanda B. S. Rangel
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, São Paulo 12602-810, Brazil
| | - Leandro G. Aguiar
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, São Paulo 12602-810, Brazil
| | - Heizir F. de Castro
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, São Paulo 12602-810, Brazil
| | - Larissa de Freitas
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, São Paulo 12602-810, Brazil
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da Silva MVC, Souza AB, de Castro HF, Aguiar LG, de Oliveira PC, de Freitas L. Synthesis of 2-ethylhexyl oleate catalyzed by Candida antarctica lipase immobilized on a magnetic polymer support in continuous flow. Bioprocess Biosyst Eng 2019; 43:615-623. [PMID: 31768626 DOI: 10.1007/s00449-019-02257-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/15/2019] [Indexed: 12/28/2022]
Abstract
This study investigated the synthesis of 2-ethylhexyl oleate catalyzed by Candida antarctica lipase immobilized on magnetic poly(styrene-co-divinylbenzene) particles in a continuous packed-bed bioreactor. Runs were carried out in a solvent-free system at 50 °C. The performance of the reactor was evaluated for substrates composed by oleic acid and 2-ethylhexanol at five molar ratios (1:4-4:1), determining its operation limits in terms of substrate flow rate. The system performance was quantified for three different flow rates corresponding to space-time between 3 and 12 h. For each condition, the influence of the space-time in the ester formation, esterification yield and productivity was determined. The molar ratio of acid-to-alcohol interfered, in a remarkable way, in the formation of 2-ethylhexyl oleate and the best performance was attained for substrate at equimolar ratio running at 12 h space-time. Under this condition, average 2-ethylhexyl oleate concentration was 471.65 ± 2.98 g L-1 which corresponded to ester productivity of 23.16 ± 0.49 mmol g-1 L-1 h-1. This strategy also gave high biocatalyst operational stability, revealing a half-life time of 2063 h. A model based on the ping-pong Bi-Bi mechanism was developed to describe the kinetics of the esterification reaction and validated using experimental data. The goodness of fit of the model was satisfactory (R2 = 0.9310-0.9952).
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Affiliation(s)
- Mateus V C da Silva
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Amanda B Souza
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Heizir F de Castro
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Leandro G Aguiar
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Pedro C de Oliveira
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil
| | - Larissa de Freitas
- Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, Lorena, SP, 12602-810, Brazil.
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Zheng T, Wu Z, Xie Q, Lu M, Xia F, Wang G, Nie Y, Ji J. Biolubricant Production of 2-Ethylhexyl Palmitate by Transesterification Over Unsupported Potassium Carbonate. J AM OIL CHEM SOC 2018. [DOI: 10.1002/aocs.12023] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ting Zheng
- Biodiesel Engineering Lab of China Petroleum & Chemical Industry Federation, and Zhejiang Province Key Lab of Biofuel, College of Chemical Engineering; Zhejiang University of Technology; Hangzhou Zhejiang 310014 China
| | - Zhenyu Wu
- Biodiesel Engineering Lab of China Petroleum & Chemical Industry Federation, and Zhejiang Province Key Lab of Biofuel, College of Chemical Engineering; Zhejiang University of Technology; Hangzhou Zhejiang 310014 China
| | - Qinglong Xie
- Biodiesel Engineering Lab of China Petroleum & Chemical Industry Federation, and Zhejiang Province Key Lab of Biofuel, College of Chemical Engineering; Zhejiang University of Technology; Hangzhou Zhejiang 310014 China
| | - Meizhen Lu
- Biodiesel Engineering Lab of China Petroleum & Chemical Industry Federation, and Zhejiang Province Key Lab of Biofuel, College of Chemical Engineering; Zhejiang University of Technology; Hangzhou Zhejiang 310014 China
| | - Fan Xia
- Biodiesel Engineering Lab of China Petroleum & Chemical Industry Federation, and Zhejiang Province Key Lab of Biofuel, College of Chemical Engineering; Zhejiang University of Technology; Hangzhou Zhejiang 310014 China
| | - Guangquan Wang
- Biodiesel Engineering Lab of China Petroleum & Chemical Industry Federation, and Zhejiang Province Key Lab of Biofuel, College of Chemical Engineering; Zhejiang University of Technology; Hangzhou Zhejiang 310014 China
| | - Yong Nie
- Biodiesel Engineering Lab of China Petroleum & Chemical Industry Federation, and Zhejiang Province Key Lab of Biofuel, College of Chemical Engineering; Zhejiang University of Technology; Hangzhou Zhejiang 310014 China
| | - Jianbing Ji
- Biodiesel Engineering Lab of China Petroleum & Chemical Industry Federation, and Zhejiang Province Key Lab of Biofuel, College of Chemical Engineering; Zhejiang University of Technology; Hangzhou Zhejiang 310014 China
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Narayan RC, Madras G. Kinetics of non-catalytic synthesis of bis(2-ethylhexyl)sebacate at high pressures. REACT CHEM ENG 2017. [DOI: 10.1039/c6re00162a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A synthetic biolubricant ester was synthesized non-catalytically at shorter reaction times and is a greener/sustainable process.
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Affiliation(s)
- Ram C. Narayan
- Department of Chemical Engineering
- Indian Institute of Science
- Bangalore 560012
- India
| | - Giridhar Madras
- Department of Chemical Engineering
- Indian Institute of Science
- Bangalore 560012
- India
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