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Alvarez Serafini M, Gonzalez-Miranda D, Tonetto G, Garcia-Ochoa F, Ladero M. Synthesis of Glycerol Carbonate from Ethylene Carbonate Using Zinc Stearate as a Catalyst: Operating Conditions and Kinetic Modeling. Molecules 2023; 28:molecules28031311. [PMID: 36770980 PMCID: PMC9921186 DOI: 10.3390/molecules28031311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/01/2023] Open
Abstract
With the advent of biodiesel as a substitute/additive for diesel, the production of glycerol has experienced an increase, as it is an unavoidable byproduct of the biodiesel process; therefore, novel products and processes based on this triol are being very actively researched. Glycerol carbonate emerges as an advanced humectant from glycerol and a monomer for diverse polycarbonates. Its production in high yields and amounts can be achieved through the solventless transcarbonation of glycerol with other organic carbonates driven by alkaline catalysts, standing out amongst the cyclic carbonates due to its reactivity. Here, we have studied the main operational variables that affect the transcarbonation reaction of glycerol and ethylene carbonate catalyzed by zinc stearate: catalyst concentration, reagent molar ratio, and temperature. Subsequently, an appropriate kinetic model was fitted to all data obtained at 80 °C and several catalyst concentrations as well as reagent molar ratios. Finally, the selected kinetic model was extended and validated by fitting it to data obtained at several temperatures, finding that the activation energy of this reaction with this catalyst is around 69.2 kJ·mol-1. The kinetic model suggests that the reaction is bimolecular and elemental and that the process is interfacial in essence, with the catalyst dispersed in a narrow space between polar (glycerol) and nonpolar (ethylene carbonate) phases.
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Affiliation(s)
- Mariana Alvarez Serafini
- Department of Chemical Engineering, Universidad Nacional del Sur (UNS) and Chemical Engineering Pilot Plant—PLAPIQUI (UNS-CONICET), Bahía Blanca B8000, Argentina
| | - David Gonzalez-Miranda
- FQPIMA Group, Materials and Chemical Engineering Department, Chemical Science School, Complutense University of Madrid, 28040 Madrid, Spain
| | - Gabriela Tonetto
- Department of Chemical Engineering, Universidad Nacional del Sur (UNS) and Chemical Engineering Pilot Plant—PLAPIQUI (UNS-CONICET), Bahía Blanca B8000, Argentina
| | - Félix Garcia-Ochoa
- FQPIMA Group, Materials and Chemical Engineering Department, Chemical Science School, Complutense University of Madrid, 28040 Madrid, Spain
| | - Miguel Ladero
- FQPIMA Group, Materials and Chemical Engineering Department, Chemical Science School, Complutense University of Madrid, 28040 Madrid, Spain
- Correspondence: ; Tel.: +34-913944164
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2
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Synthesis of Ibuprofen Monoglyceride Using Novozym®435: Biocatalyst Activation and Stabilization in Multiphasic Systems. Catalysts 2022. [DOI: 10.3390/catal12121531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
This work was focused on the enzymatic esterification of glycerol and ibuprofen at high concentrations in two triphasic systems composed of toluene+ibuprofene (apolar) and glycerol or glycerol–water (polar) liquid phases, and a solid phase with the industrial immobilized lipase B from Candida antarctica named Novozym®435 (N435) acting as the biocatalyst. Based on a preliminary study, the concentration of the enzyme was set at 30 g·L−1 and the stirring speed at 720 r.p.m to reduce external mass transfer limitations. To obtain more information on the reaction system, it was conducted at a wide range of temperatures (50 to 80 °C) and initial concentrations of ibuprofen (20–100 g·L−1, that is, 97 to 483 mM). Under these experimental conditions, the external mass transfer, according to the Mears criterion (Me = 1.47–3.33·10−4 << 0.15), was fast, presenting no limitation to the system productivity, regardless of the presence of water and from 50 to 80 °C. Considering that the enzyme is immobilized in a porous ion-exchange resin, limitations due to internal mass transfer can exist, depending on the values of the effectiveness factor (η). It varied from 0.14 to 0.23 at 50 to 80 °C and 0.32–1 mm particle diameter range in the absence of water, and in the same ranges, from 0.40 to 0.66 in the presence of 7.4% w/w water in the glycerol phase. Thus, it is evident that some limitation occurs due to mass transfer inside the pores, while the presence of water in the polar phase increases the productivity 3–4 fold. During the kinetic study, several kinetic models were proposed for both triphasic reacting systems, with and without first-order biocatalyst deactivation, and their fit to all relevant experimental data led to the observation that the best kinetic model was a reversible hyperbolic model with first-order deactivation in the anhydrous reaction system and a similar model, but without deactivation, for the system with added water at zero time. This fact is in sharp contrast to the use of N435 in a water-glycerol monophasic system, where progressive dissolution of ibuprofen in the reacting media, together with a notable enzyme deactivation, is observed.
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Sánchez‐Muñoz GK, Ortega‐Rojas MA, Chavelas‐Hernández L, Razo‐Hernández RS, Valdéz‐Camacho JR, Escalante J. Solvent‐Free Lipase‐Catalyzed Transesterification of Alcohols with Methyl Esters Under Vacuum‐Assisted Conditions. ChemistrySelect 2022. [DOI: 10.1002/slct.202202643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Grecia K. Sánchez‐Muñoz
- Instituto de Investigación en Ciencias Básicas y Aplicadas, Centro de Investigaciones Químicas Universidad Autónoma del Estado de Morelos Av. Universidad No. 1001, Col. Chamilpa C.P. 62210 Cuernavaca Morelos México
| | - Marina A. Ortega‐Rojas
- Instituto de Investigación en Ciencias Básicas y Aplicadas, Centro de Investigaciones Químicas Universidad Autónoma del Estado de Morelos Av. Universidad No. 1001, Col. Chamilpa C.P. 62210 Cuernavaca Morelos México
| | - Leticia Chavelas‐Hernández
- Instituto de Investigación en Ciencias Básicas y Aplicadas, Centro de Investigaciones Químicas Universidad Autónoma del Estado de Morelos Av. Universidad No. 1001, Col. Chamilpa C.P. 62210 Cuernavaca Morelos México
| | - Rodrigo S. Razo‐Hernández
- Instituto de Investigación en Ciencias Básicas y Aplicadas, Centro de Investigación en Dinámica Celular Universidad Autónoma del Estado de Morelos Av. Universidad No. 1001, Col. Chamilpa C.P. 62210 Cuernavaca Morelos México
| | - Jonathan R. Valdéz‐Camacho
- Instituto de Investigación en Ciencias Básicas y Aplicadas, Centro de Investigaciones Químicas Universidad Autónoma del Estado de Morelos Av. Universidad No. 1001, Col. Chamilpa C.P. 62210 Cuernavaca Morelos México
| | - Jaime Escalante
- Instituto de Investigación en Ciencias Básicas y Aplicadas, Centro de Investigaciones Químicas Universidad Autónoma del Estado de Morelos Av. Universidad No. 1001, Col. Chamilpa C.P. 62210 Cuernavaca Morelos México
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Zappaterra F, Tupini C, Summa D, Cristofori V, Costa S, Trapella C, Lampronti I, Tamburini E. Xylitol as a Hydrophilization Moiety for a Biocatalytically Synthesized Ibuprofen Prodrug. Int J Mol Sci 2022; 23:ijms23042026. [PMID: 35216142 PMCID: PMC8880498 DOI: 10.3390/ijms23042026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 11/16/2022] Open
Abstract
Biocatalyzed synthesis can be exploited to produce high-value products, such as prodrugs. The replacement of chemical approaches with biocatalytic processes is advantageous in terms of environmental prevention, embracing the principles of green chemistry. In this work, we propose the covalent attachment of xylitol to ibuprofen to produce an IBU-xylitol ester prodrug. Xylitol was chosen as a hydrophilizer for the final prodrug, enhancing the water solubility of ibuprofen. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) extensively used as an analgesic, anti-inflammatory, and antipyretic. Despite being the third-most-prescribed medicine in the world, the aqueous solubility of ibuprofen is just 21 mg/L. This poor water solubility greatly limits the bioavailability of ibuprofen. We aimed to functionalize ibuprofen with xylitol using the reusable immobilized N435 biocatalyst. Instead of a biphasic media, we proposed a monophasic reaction environment. The characterization of the IBU-xylitol ester was performed by 1H, 13C-NMR, DEPT, COSY, HMQC, HMBC, FTIR, and MS spectroscopy. Preliminary in vitro tests showed that this enzymatically synthesized prodrug of ibuprofen reduced the expression of the interleukin 8 genes in human bronchial epithelial cells (IB3-1) from cystic fibrosis (CF) patients.
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Affiliation(s)
- Federico Zappaterra
- Department of Environmental and Prevention Sciences, University of Ferrara, Corso Ercole I d’Este, 32-44121 Ferrara, FE, Italy; (F.Z.); (D.S.); (E.T.)
| | - Chiara Tupini
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Luigi Borsari, 46-44121 Ferrara, FE, Italy; (C.T.); (I.L.)
| | - Daniela Summa
- Department of Environmental and Prevention Sciences, University of Ferrara, Corso Ercole I d’Este, 32-44121 Ferrara, FE, Italy; (F.Z.); (D.S.); (E.T.)
| | - Virginia Cristofori
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari, 46-44121 Ferrara, FE, Italy; (V.C.); (C.T.)
| | - Stefania Costa
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari, 46-44121 Ferrara, FE, Italy; (V.C.); (C.T.)
- Correspondence:
| | - Claudio Trapella
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari, 46-44121 Ferrara, FE, Italy; (V.C.); (C.T.)
- Laboratorio per le Tecnologie delle Terapie Avanzate (LTTA), Via Fossato di Mortara, 70-44121 Ferrara, FE, Italy
| | - Ilaria Lampronti
- Department of Life Sciences and Biotechnology, University of Ferrara, Via Luigi Borsari, 46-44121 Ferrara, FE, Italy; (C.T.); (I.L.)
| | - Elena Tamburini
- Department of Environmental and Prevention Sciences, University of Ferrara, Corso Ercole I d’Este, 32-44121 Ferrara, FE, Italy; (F.Z.); (D.S.); (E.T.)
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Glyceric Prodrug of Ursodeoxycholic Acid (UDCA): Novozym 435-Catalyzed Synthesis of UDCA-Monoglyceride. Molecules 2021; 26:molecules26195966. [PMID: 34641510 PMCID: PMC8513054 DOI: 10.3390/molecules26195966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/27/2021] [Accepted: 09/30/2021] [Indexed: 11/23/2022] Open
Abstract
Bile acids (BAs) are a family of steroids synthesized from cholesterol in the liver. Among bile acids, ursodeoxycholic acid (UDCA) is the drug of choice for treating primary biliary cirrhosis and dissolving cholesterol gallstones. The clinical effectiveness of UDCA includes its choleretic activity, the capability to inhibit hydrophobic bile acid absorption by the intestine under cholestatic conditions, reducing cholangiocyte injury, stimulation of impaired biliary output, and inhibition of hepatocyte apoptosis. Despite its clinical effectiveness, UDCA is poorly soluble in the gastro-duodeno-jejunal contents, and pharmacological doses of UDCA are not readily soluble in the stomach and intestine, resulting in incomplete absorption. Indeed, the solubility of 20 mg/L greatly limits the bioavailability of UDCA. Since the bioavailability of drug products plays a critical role in the design of oral administration dosages, we investigated the enzymatic esterification of UDCA as a strategy of hydrophilization. Therefore, we decided to enzymatically synthesize a glyceric ester of UDCA bile acid to produce a more water-soluble molecule. The esterification reactions between UDCA and glycerol were performed with an immobilized lipase B from Candida antarctica (Novozym 435) in solvent-free and solvent-assisted systems. The characterization of the UDCA-monoglyceride, enzymatically synthesized, has been performed by 1H-NMR, 13C-NMR, COSY, HSQC, HMBC, IR, and MS spectroscopy.
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Toledo MV, José C, Suster CRL, Collins SE, Portela R, Bañares MA, Briand LE. Catalytic and molecular insights of the esterification of ibuprofen and ketoprofen with glycerol. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111811] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Zappaterra F, Rodriguez MEM, Summa D, Semeraro B, Costa S, Tamburini E. Biocatalytic Approach for Direct Esterification of Ibuprofen with Sorbitol in Biphasic Media. Int J Mol Sci 2021; 22:3066. [PMID: 33802769 PMCID: PMC8002397 DOI: 10.3390/ijms22063066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/13/2021] [Accepted: 03/15/2021] [Indexed: 11/17/2022] Open
Abstract
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) introduced in the 1960s and widely used as an analgesic, anti-inflammatory, and antipyretic. In its acid form, the solubility of 21 mg/L greatly limits its bioavailability. Since the bioavailability of a drug product plays a critical role in the design of oral administration dosage, this study investigated the enzymatic esterification of ibuprofen as a strategy for hydrophilization. This work proposes an enzymatic strategy for the covalent attack of highly hydrophilic molecules using acidic functions of commercially available bioactive compounds. The poorly water-soluble drug ibuprofen was esterified in a hexane/water biphasic system by direct esterification with sorbitol using the cheap biocatalyst porcine pancreas lipase (PPL), which demonstrated itself to be a suitable enzyme for the effective production of the IBU-sorbitol ester. This work reports the optimization of the esterification reaction.
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Affiliation(s)
- Federico Zappaterra
- Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy; (F.Z.); (D.S.); (E.T.)
| | - Maria Elena Maldonado Rodriguez
- Department of Biotechnology Engineering of the RRNN, Salesian Polytechnic University, Av. 12 de Octubre y Wilson, Quito 170109, Ecuador;
| | - Daniela Summa
- Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy; (F.Z.); (D.S.); (E.T.)
| | | | - Stefania Costa
- Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy; (F.Z.); (D.S.); (E.T.)
| | - Elena Tamburini
- Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy; (F.Z.); (D.S.); (E.T.)
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8
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Gonçalves MCP, Romanelli JP, Guimarães JR, Vieira AC, de Azevedo BP, Tardioli PW. Reviewing research on the synthesis of CALB-catalyzed sugar esters incorporating systematic mapping principles. Crit Rev Biotechnol 2021; 41:865-878. [PMID: 33645353 DOI: 10.1080/07388551.2021.1888071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Rigorous evidence reviews must follow specific guidelines designed to improve transparency, reproducibility, and to minimize biases to which traditional reviews are susceptible. While evidence synthesis methods, such as systematic reviews and maps, have been used in several research fields, the majority of reviews published in the realm of chemical engineering are nonsystematic. In this study, we incorporated principles of systematic mapping to conduct a literature review covering research on the synthesis of sugar fatty acid esters (SFAE) with Candida antarctica lipase B (CALB). Our results showed that the simple monosaccharides were the most cited sugars among studies we conducted. The direct use of renewable raw materials and frequently available resources to produce alternative sugar esters (SE) was scarcely reported in our data set. We found that free fatty acids (FFA) were the most commonly cited acyl donors amongst all publications, with lauric, oleic, and palmitic acids accounting for ∼43% of the occurrences. Tertiary alcohols (ter-butyl alcohol (T-but) and 2-methyl-2-butanol (2M2B)) and ionic liquids were the most used solvents to synthesize SE. The co-occurence analysis of keywords involving solvent terms showed that most of the papers evaluated different solvents as reaction media (mostly in the form of a bisolvent system), also investigating the impact of their choice on sugar ester productivities. Given the potential of reviews informing us of research decisions, this article reveals trends and spaces across CALB-catalyzed SE synthesis research, in addition to introducing a new methodological perspective for developing reviews in the field of chemical engineering.
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Affiliation(s)
| | - João Paulo Romanelli
- Laboratory of Ecology and Forest Restoration (LERF), Forest Sciences Department, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, Brazil
| | - José Renato Guimarães
- Chemical Engineering Department, Federal University of São Carlos (UFSCar), São Carlos, Brazil
| | - Ana Carolina Vieira
- Chemical Engineering Department, Federal University of São Carlos (UFSCar), São Carlos, Brazil
| | - Bruna Pereira de Azevedo
- Laboratory of Ecology and Forest Restoration (LERF), Forest Sciences Department, University of São Paulo, Luiz de Queiroz College of Agriculture, Piracicaba, Brazil
| | - Paulo Waldir Tardioli
- Chemical Engineering Department, Federal University of São Carlos (UFSCar), São Carlos, Brazil
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Biocatalytic Approach for Novel Functional Oligoesters of ε-Caprolactone and Malic Acid. Processes (Basel) 2021. [DOI: 10.3390/pr9020232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Biocatalysis has developed in the last decades as a major tool for green polymer synthesis. The particular ability of lipases to catalyze the synthesis of novel polymeric materials has been demonstrated for a large range of substrates. In this work, novel functional oligoesters were synthesized from ε-caprolactone and D,L/L-malic acid by a green and sustainable route, using two commercially available immobilized lipases as catalysts. The reactions were carried out at different molar ratios of the comonomers in organic solvents, but the best results were obtained in solvent-free systems. Linear and cyclic oligomeric products with average molecular weights of about 1500 Da were synthesized, and the formed oligoesters were identified by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) analysis. The oligoester synthesis was not enantioselective in the studied reaction conditions. The operational stability of both biocatalysts (Novozyme 435 and GF-CalB-IM) was excellent after reutilization in 13 batch reaction cycles. The thermal properties of the reaction products were investigated by thermogravimetric (TG) and differential scanning calorimetry (DSC) analysis. The presence of polar pendant groups in the structure of these oligomers could widen the possible applications compared to the oligomers of ε-caprolactone or allow the conversion to other functional materials.
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10
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Enzymatic Esterification as Potential Strategy to Enhance the Sorbic Acid Behavior as Food and Beverage Preservative. FERMENTATION 2020. [DOI: 10.3390/fermentation6040096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Sorbic acid is the most commonly used preservative in the food industry. The antimicrobial inhibition of sorbic acid could be influenced by its lipophilic nature, which reduces its use in hydrophilic food formulations. Reactions between sorbic acid and glycerol catalyzed by lipases were studied in order to develop a novel sorbic acid derivate with a promising hydrophilic profile. The esterification reaction between sorbic acid and glycerol in a solvent-free system were performed with an immobilized lipase B from Candida antarctica (CALB). The glycerol sorbate product has been tested against S. griseus bacterium and Saccharomyces cerevisiae yeast. Results indicate that the esterification of sorbic acid with glycerol does improve its antimicrobial properties against Saccharomyces cerevisie. The reported results demonstrate that esterification can be used as a strategy to improve the antimicrobial activity of sorbic acid.
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Yuan X, Wang L, Zhang P, Xu W, Tang K. Enantioselective esterification of (R,S)-2-(4-methylphenyl) propionic acid via Novozym 435: Optimization and application. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2019.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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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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13
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Yuan X, Kang S, Zhang P, Xu W, Tang K. Experiment and simulation on kinetic resolution of (
R,S
)‐2‐chloromandelic acid by enzymatic transesterification. Biotechnol Prog 2019; 35:e2815. [DOI: 10.1002/btpr.2815] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 03/17/2019] [Accepted: 03/23/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Xin Yuan
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
| | - Shuangjian Kang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
| | - Panliang Zhang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
| | - Weifeng Xu
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
| | - Kewen Tang
- Department of Chemistry and Chemical EngineeringHunan Institute of Science and Technology Yueyang Hunan China
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14
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Zhang Y, Zhao Y, Gao X, Jiang W, Li Z, Yao Q, Yang F, Wang F, Liu J. Kinetic model of the enzymatic Michael addition for synthesis of mitomycin analogs catalyzed by immobilized lipase from T. laibacchii. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.01.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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15
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Zhang PL, Cheng Q, Xu W, Tang KW. Enzymatic Enantioselective Hydrolysis of 2-(3-Chlorophenyl) Propionic Acid Ester Enhanced by PEG: Experiment and Optimization. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02377] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pan-Liang Zhang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China
| | - Qing Cheng
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China
| | - Weifeng Xu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, Hunan, China
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16
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Nicolás P, Lassalle V, Ferreira ML. Immobilization of CALB on lysine-modified magnetic nanoparticles: influence of the immobilization protocol. Bioprocess Biosyst Eng 2017; 41:171-184. [DOI: 10.1007/s00449-017-1855-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 10/13/2017] [Indexed: 01/17/2023]
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17
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Lanctôt AG, Attard TM, Sherwood J, McElroy CR, Hunt AJ. Synthesis of cholesterol-reducing sterol esters by enzymatic catalysis in bio-based solvents or solvent-free. RSC Adv 2016. [DOI: 10.1039/c6ra10275a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Enzymatic synthesis of a β-sitosterol ester under solvent free conditions and bio-based solvents was compared with conventional solvents.
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Affiliation(s)
| | - Thomas M. Attard
- Green Chemistry Centre of Excellence
- Department of Chemistry
- University of York
- UK
| | - James Sherwood
- Green Chemistry Centre of Excellence
- Department of Chemistry
- University of York
- UK
| | - Con R. McElroy
- Green Chemistry Centre of Excellence
- Department of Chemistry
- University of York
- UK
| | - Andrew J. Hunt
- Green Chemistry Centre of Excellence
- Department of Chemistry
- University of York
- UK
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18
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Ravelo M, Esteban J, Ladero M, García-Ochoa F. Enzymatic synthesis of ibuprofen monoglycerides catalyzed by free Candida antarctica lipase B in a toluene–glycerol biphasic medium. RSC Adv 2016. [DOI: 10.1039/c6ra15480h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Reactive distillation in the presence of toluene permits the intensification of ibuprofen monoglyceride synthesis by means of aCandida antarcticaindustrial solution, attaining total conversion.
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Affiliation(s)
- Marianela Ravelo
- Department of Chemical Engineering
- Complutense University of Madrid
- Madrid
- Spain
| | - Jesús Esteban
- Department of Chemical Engineering
- Complutense University of Madrid
- Madrid
- Spain
| | - Miguel Ladero
- Department of Chemical Engineering
- Complutense University of Madrid
- Madrid
- Spain
| | - Félix García-Ochoa
- Department of Chemical Engineering
- Complutense University of Madrid
- Madrid
- Spain
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