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Butyl-esters synthesis from palm fatty acid distillate catalyzed by immobilized lipases in solvent-free system – optimization using a simplified method (SER). Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.02.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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Exploiting the Complementary Potential of Rice Bran Oil as a Low-Cost Raw Material for Bioenergy Production. Processes (Basel) 2022. [DOI: 10.3390/pr10112460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Rice is one of the most consumed cereals in the world. From rice processing, rice bran is obtained, and only a part of this by-product is effectively used. Rice bran oil can be obtained and used as an alternative feedstock for biodiesel production, although few studies exist to support its exploitation. In addition, pretreatment is required to reduce its acidity and allow for its integration in the conventional industrial process. This work evaluated two pretreatment processes aiming to reduce the free fatty acid (FFA) content of rice bran oil by employing an acid-catalyzed process and a biocatalyzed process. The results allowed us to assess the efficiency and effectiveness of both pretreatments. For that purpose, acid (45, 55 and 65 °C, using H2SO4 concentrations of 2 wt.% or 4 wt.% and a methanol:oil molar ratio of 9:1) and enzymatic FFA conversion (35 °C using a 6:1 methanol:oil molar ratio and 5 wt.% of Thermomyces lanuginosus) were evaluated using rice bran oil with an acid value around 47 mg KOH.g−1, and the reaction kinetics were assessed. Acid esterification enabled a 92% acidity reduction (65 °C, 4 wt.% of catalyst) after 8 h, with the final product presenting an acid value of 3.7 mg KOH.g−1 and a biodiesel purity of 42 wt.%. The enzymatic process allowed an acidity reduction of 82%, resulting in a product with an acid value of 7.0 mg KOH.g−1; however, after 24 h, the biodiesel purity was 87 wt.% (almost a two-fold increase compared to that obtained in the homogeneous process), revealing the conversion of both free fatty acids and glycerides. The study of the reaction kinetics of the homogeneous (acid) esterification showed that, for temperatures > 45 °C, the constant rate increased with temperature. A higher constant rate was obtained for the temperature of 55 °C using 4 wt.% of catalyst (k′ = 0.13 min−1). For the heterogeneous (enzymatic) esterification, the constant rate obtained was lower (k′ = 0.028 min−1), as expected. The study revealed the technical viability of the esterification pretreatment of rice bran oil and the important parameters concerning the performance of the pretreatment solutions. Finally, the enzymatic process should be further explored, aiming to develop more ecofriendly processes (water and energy savings) to produce biodiesel from oils with a high acidity (low-cost raw materials).
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Simplified Method to Optimize Enzymatic Esters Syntheses in Solvent-Free Systems: Validation Using Literature and Experimental Data. Catalysts 2021. [DOI: 10.3390/catal11111357] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The adoption of biocatalysis in solvent-free systems is an alternative to establish a greener esters production. An interesting correlation between the acid:alcohol molar ratio and biocatalyst (immobilized lipase) loading in the optimization of ester syntheses in solvent-free systems had been observed and explored. A simple mathematical tool named Substrate-Enzyme Relation (SER) has been developed, indicating a range of reaction conditions that resulted in high conversions. Here, SER utility has been validated using data from the literature and experimental assays, totalizing 39 different examples of solvent-free enzymatic esterifications. We found a good correlation between the SER trends and reaction conditions that promoted high conversions on the syntheses of short, mid, or long-chain esters. Moreover, the predictions obtained with SER are coherent with thermodynamic and kinetics aspects of enzymatic esterification in solvent-free systems. SER is an easy-to-handle tool to predict the reaction behavior, allowing obtaining optimum reaction conditions with a reduced number of experiments, including the adoption of reduced biocatalysts loadings.
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de Sousa RR, Pinto MCC, Aguieiras ECG, Cipolatti EP, Manoel EA, da Silva AS, Pinto JC, Freire DMG, Ferreira-Leitão VS. Comparative performance and reusability studies of lipases on syntheses of octyl esters with an economic approach. Bioprocess Biosyst Eng 2021; 45:131-145. [PMID: 34605995 DOI: 10.1007/s00449-021-02646-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/24/2021] [Indexed: 10/20/2022]
Abstract
A suitable immobilized lipase for esters syntheses should be selected considering not only its cost. We evaluated five biocatalysts in syntheses of octyl caprylate, octyl caprate, and octyl laurate, in which conversions higher than 90% were achieved. Novozym® 435 and non-commercial preparations (including a dry fermented solid) were selected for short-term octyl laurate syntheses using different biocatalysts loadings. By increasing the biocatalyst's loading the lipase's reusability also raised, but without strict proportionality, which resulted in a convergence between the lowest biocatalyst loading and the lowest cost per batch. The use of a dry fermented solid was cost-effective, even using loadings as high as 20.0% wt/wt due to its low obtaining cost, although exhibiting low productiveness. The combination of biocatalyst's cost, esterification activity, stability, and reusability represents proper criteria for the choice. This kind of assessment may help to establish quantitative goals to improve or to develop new biocatalysts.
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Affiliation(s)
- Ronaldo Rodrigues de Sousa
- Biocatalysis Laboratory, Ministry of Science, Technology, and Innovations, National Institute of Technology, Rio de Janeiro, RJ, 20081-312, Brazil.,Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-909, Brazil
| | - Martina Costa Cerqueira Pinto
- Federal University of Rio de Janeiro, Chemical Engineering Program, COPPE, Rio de Janeiro, RJ, 21941-972, Brazil.,Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-909, Brazil
| | - Erika Cristina Gonçalves Aguieiras
- Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-909, Brazil.,Federal University of Rio de Janeiro Campus, UFRJ - Duque de Caxias, Prof. Geraldo Cidade, Duque de Caxias, RJ, 25240-005, Brazil
| | - Eliane Pereira Cipolatti
- Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-909, Brazil.,Pharmaceutical Biotechnology Program, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-972, Brazil
| | - Evelin Andrade Manoel
- Pharmaceutical Biotechnology Program, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-972, Brazil
| | - Ayla Sant'Ana da Silva
- Biocatalysis Laboratory, Ministry of Science, Technology, and Innovations, National Institute of Technology, Rio de Janeiro, RJ, 20081-312, Brazil.,Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-909, Brazil
| | - José Carlos Pinto
- Federal University of Rio de Janeiro, Chemical Engineering Program, COPPE, Rio de Janeiro, RJ, 21941-972, Brazil
| | | | - Viridiana Santana Ferreira-Leitão
- Biocatalysis Laboratory, Ministry of Science, Technology, and Innovations, National Institute of Technology, Rio de Janeiro, RJ, 20081-312, Brazil. .,Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-909, Brazil.
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Sharma A, Melo JS, Prakash R, Tejo Prakash N. Lab-scale production of biodiesel from soybean acid oil using immobilized whole cells as catalyst. BIOCATAL BIOTRANSFOR 2021. [DOI: 10.1080/10242422.2021.1964486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Anirudh Sharma
- University Institute of Biotechnology, Chandigarh University, Mohali, India
| | - Jose S. Melo
- NA&BTD, Bhabha Atomic Research Centre, Mumbai, India
| | - Ranjana Prakash
- School of Chemistry & Biochemistry, Thapar Institute of Engineering and Technology, Patiala, India
| | - N. Tejo Prakash
- School of Energy & Environment, Thapar Institute of Engineering and Technology, Patiala, India
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ZitianWang, Dai L, Liu D, Liu H, Du W. Kinetics and Mechanism of Solvent Influence on the Lipase-Catalyzed 1,3-Diolein Synthesis. ACS OMEGA 2020; 5:24708-24716. [PMID: 33015488 PMCID: PMC7528294 DOI: 10.1021/acsomega.0c03284] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/02/2020] [Indexed: 11/17/2023]
Abstract
1,3-Diacylglycerol preparation has roused increasing attention in recent years as the 1,3-diacylglycerol-rich oils can suppress the deposition of visceral fat and prevent the body weight increasing. Lipozyme TL IM-mediated esterification of oleic acid with monoolein was effective for 1,3-diacylglycerol production. During the esterification process, the solvent shows obvious influence on the diolein synthesis as well as the 1,3-diolein production. This work investigated the related kinetics and mechanism of the solvent effect on the esterification and Lipozyme TL IM performance. The results indicated that both the esterification rate constant and the acyl migration rate constant positively correlated with the logP of the solvent, while the site specificity of lipase has negative correlation with solvent logP. The acylation toward the 2-position of 1-monoolein was more sensitive to the solvent logP compared to the 1-position of glycerides. Molecular dynamics simulation revealed that solvents with different logP influenced the structure of Lipozyme TL IM including RMSD, hydrogen bond, and radial distribution function to a large extent, which subsequently led to the catalytic activity and selectivity variation of the lipase.
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Affiliation(s)
- ZitianWang
- Key Laboratory for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Lingmei Dai
- Key Laboratory for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Dehua Liu
- Key Laboratory for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Tsinghua Innovation Center in Dongguan, Dongguan, Guangdong 523808, P.R. China
| | - Hongjuan Liu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, P.R. China
| | - Wei Du
- Key Laboratory for Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
- Tsinghua Innovation Center in Dongguan, Dongguan, Guangdong 523808, P.R. China
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Rodrigues de Sousa R, Vitor Belo Pazutti L, Zamith Leal Dalmaso G, Frauches Siqueira D, Sant’Ana da Silva A, Ferreira-Leitão VS. A practical approach to obtain high yield lipase-mediated synthesis of octyl caprylate with Novozym 435. BIOCATAL BIOTRANSFOR 2020. [DOI: 10.1080/10242422.2020.1739025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ronaldo Rodrigues de Sousa
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, Innovations and Communications, Rio de Janeiro, Brazil
| | - Leonardo Vitor Belo Pazutti
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, Innovations and Communications, Rio de Janeiro, Brazil
- Military Institute of Engineering, Rio de Janeiro, Brazil
| | - Gabriel Zamith Leal Dalmaso
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, Innovations and Communications, Rio de Janeiro, Brazil
| | - Diane Frauches Siqueira
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, Innovations and Communications, Rio de Janeiro, Brazil
| | - Ayla Sant’Ana da Silva
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, Innovations and Communications, Rio de Janeiro, Brazil
- Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Viridiana Santana Ferreira-Leitão
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, Innovations and Communications, Rio de Janeiro, Brazil
- Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Lipase-Catalyzed Synthesis of Renewable Plant Oil-Based Polyamides. Polymers (Basel) 2019; 11:polym11111730. [PMID: 31652736 PMCID: PMC6918247 DOI: 10.3390/polym11111730] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/14/2019] [Accepted: 10/17/2019] [Indexed: 11/17/2022] Open
Abstract
Enzyme catalyzed synthesis of renewable polyamides was investigated using Candida antarctica lipase B. A fatty acid-derived AB-type functional monomer, having one amine and one methyl ester functionality, was homopolymerized at 80 and 140 °C. Additionally, the organobase 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) was used as a catalyst. The results from the two catalysts were comparable. However, the amount of lipase added was 1.2 × 103 times lower, showing that the lipase was a more efficient catalyst for this system as compared to TBD. Moreover, the AB-type monomer was copolymerized with 1,12-diaminododecane to synthesize oligoamides of two different lengths.
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Kovalenko GA, Perminova LV, Beklemishev AB. Catalytic properties of recombinant Thermomyces lanuginosus lipase immobilized by impregnation into mesoporous silica in the enzymatic esterification of saturated fatty acids with aliphatic alcohols. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01648-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Heeres A, Vanbroekhoven K, Van Hecke W. Solvent-free lipase-catalyzed production of (meth)acrylate monomers: Experimental results and kinetic modeling. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2018.11.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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