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Chiappini V, Casbarra D, Astolfi ML, Girelli AM. Investigation on solvent-free esterification of oleic acid by hemp tea waste-immobilized Candida rugosa lipase. J Biotechnol 2024; 392:118-127. [PMID: 38969178 DOI: 10.1016/j.jbiotec.2024.07.001] [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] [Received: 05/31/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/07/2024]
Abstract
This study aimed at Candida rugosa lipase immobilization on a low-cost and readily available support. Among agro-industrial crops, hemp tea waste was chosen as the carrier because it provides higher immobilization performance than hemp flower and leaf wastes. Support characterization by ATR-FTIR, SEM and elemental analysis and the optimization of the adsorption immobilization process were performed. The lipase adsorption immobilization was obtained by soaking the support with hexane under mild agitation for 2 h and a successively incubating the enzyme for 1 h at room temperature without removing the solvent. The esterification of oleic acid with n-decanol was tested in a solvent-free system by studying some parameters that influence the reaction, such as the substrates molar ratio, the lipase activity/oleic acid ratio, reaction temperature and the presence/absence of molecular sieves. The biocatalyst showed the ability to bring the esterification reaction to equilibrium under 60 min and good reusability (maintaining 60 % of its original activity after three successive esterification reactions) but low conversion (21 %) at the optimized conditions (40 °C, 1:2 substrates molar ratio, 0.56 lipase/oleic acid ratio, without sieves). Comparing the results with those obtained by free lipase form at the same activity (1 U) and experimental conditions, slightly higher conversion (%) appeared for the free lipase. All this highlighted that probably the source of lipase for its carbohydrate-binding pocket and lid structure affected the esterification of oleic acid but certainly, the immobilization didn't induce any lipase conformational change also allowing the reuse of the catalytic material.
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Affiliation(s)
- Viviana Chiappini
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, Rome 00185, Italy
| | - Debora Casbarra
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, Rome 00185, Italy
| | - Maria Luisa Astolfi
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, Rome 00185, Italy
| | - Anna Maria Girelli
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, Rome 00185, Italy.
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2
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Venturi V, Presini F, Trapella C, Bortolini O, Giovannini PP, Lerin LA. Microwave-assisted enzymatic synthesis of geraniol esters in solvent-free systems: optimization of the reaction parameters, purification and characterization of the products, and biocatalyst reuse. Mol Divers 2024; 28:1665-1679. [PMID: 37368203 PMCID: PMC11269508 DOI: 10.1007/s11030-023-10682-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/17/2023] [Indexed: 06/28/2023]
Abstract
Various geraniol esters act as insect pheromones and display pharmacological activities, especially as neuroprotective agents. Therefore, the search for synthetic strategies alternative to traditional chemical synthesis could help designing ecofriendly routes for the preparation of such bioactive compounds. Hence, this work aims at the microwave-assisted enzymatic synthesis of geranyl esters in solvent-free systems. The process variables were optimized for the synthesis of geranyl acetoacetate, achieving 85% conversion after 60 min using a 1:5 substrates molar ratio (ester to geraniol), 80 °C and 8.4% of Lipozyme 435 lipase without removal of the co-produced methanol. On the other hand, a 95% conversion was reached after 30 min using 1:6 substrates molar ratio, 70 °C and 7% lipase in the presence of 5Å molecular sieves for the methanol capture. In addition, the lipase showed good reusability, maintaining the same activity for five reaction cycles. Finally, under the above optimized conditions, other geraniol esters were successfully synthetized such as the geranyl butyrate (98%), geranyl hexanoate (99%), geranyl octanoate (98%), and geranyl (R)-3-hydroxybutyrate (56%). These results demonstrate the microwave-assisted lipase-catalyzed transesterification in a solvent-free system as an excellent and sustainable catalytic methodology to produce geraniol esters.
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Affiliation(s)
- Valentina Venturi
- Department of Environment and Prevention Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Francesco Presini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Claudio Trapella
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Olga Bortolini
- Department of Environment and Prevention Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Pier Paolo Giovannini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Lindomar Alberto Lerin
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy.
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3
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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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4
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Fan Q, Li X, Dong H, Ni Z, Hu T. ZIF-67 Anchored on MoS 2/rGO Heterostructure for Non-Enzymatic and Visible-Light-Sensitive Photoelectrochemical Biosensing. BIOSENSORS 2024; 14:38. [PMID: 38248415 PMCID: PMC10813494 DOI: 10.3390/bios14010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
Graphene and graphene-like two-dimensional layered nanomaterials-based photoelectrochemical (PEC) biosensors have recently grown rapidly in popularity thanks to their advantages of high sensitivity and low background signal, which have attracted tremendous attention in ultrahigh sensitive small molecule detection. This work proposes a non-enzymatic and visible-light-sensitive PEC biosensing platform based on ZIF-67@MoS2/rGO composite which is synthesized through a facile and one-step microwave-assisted hydrothermal method. The combination of MoS2 and rGO could construct van der Waals heterostructures, which not only act as visible-light-active nanomaterials, but facilitate charge carriers transfer between the photoelectrode and glassy carbon electrode (GCE). ZIF-67 anchored on MoS2/rGO heterostructures provides large specific surface areas and a high proportion of catalytic sites, which cooperate with MoS2 nanosheets, realizing rapid and efficient enzyme-free electrocatalytic oxidation of glucose. The ZIF-67@MoS2/rGO-modified GCE can realize the rapid and sensitive detection of glucose at low detection voltage, which exhibits a high sensitivity of 12.62 μAmM-1cm-2. Finally, the ZIF-67@MoS2/rGO PEC biosensor is developed by integrating the ZIF-67@MoS2/rGO with a screen-printed electrode (SPE), which exhibits a high sensitivity of 3.479 μAmM-1cm-2 and a low detection limit of 1.39 μM. The biosensor's selectivity, stability, and repeatability are systematically investigated, and its practicability is evaluated by detecting clinical serum samples.
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Affiliation(s)
| | - Xiao Li
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China; (Q.F.); (H.D.); (Z.N.)
| | | | | | - Tao Hu
- School of Mechanical Engineering, Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, Southeast University, Nanjing 211189, China; (Q.F.); (H.D.); (Z.N.)
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5
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González-Granda S, Albarrán-Velo J, Lavandera I, Gotor-Fernández V. Expanding the Synthetic Toolbox through Metal-Enzyme Cascade Reactions. Chem Rev 2023; 123:5297-5346. [PMID: 36626572 DOI: 10.1021/acs.chemrev.2c00454] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The combination of metal-, photo-, enzyme-, and/or organocatalysis provides multiple synthetic solutions, especially when the creation of chiral centers is involved. Historically, enzymes and transition metal species have been exploited simultaneously through dynamic kinetic resolutions of racemates. However, more recently, linear cascades have appeared as elegant solutions for the preparation of valuable organic molecules combining multiple bioprocesses and metal-catalyzed transformations. Many advantages are derived from this symbiosis, although there are still bottlenecks to be addressed including the successful coexistence of both catalyst types, the need for compatible reaction media and mild conditions, or the minimization of cross-reactivities. Therefore, solutions are here also provided by means of catalyst coimmobilization, compartmentalization strategies, flow chemistry, etc. A comprehensive review is presented focusing on the period 2015 to early 2022, which has been divided into two main sections that comprise first the use of metals and enzymes as independent catalysts but working in an orchestral or sequential manner, and later their application as bionanohybrid materials through their coimmobilization in adequate supports. Each part has been classified into different subheadings, the first part based on the reaction catalyzed by the metal catalyst, while the development of nonasymmetric or stereoselective processes was considered for the bionanohybrid section.
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Affiliation(s)
- Sergio González-Granda
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
| | - Jesús Albarrán-Velo
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
| | - Iván Lavandera
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
| | - Vicente Gotor-Fernández
- Organic and Inorganic Chemistry Department, Universidad de Oviedo, 33006 Oviedo, Asturias, Spain
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6
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Metal-organic framework as a heterogeneous catalyst for biodiesel production: A review. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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7
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Adewale P, Yancheshmeh MS, Lam E. Starch modification for non-food, industrial applications: Market intelligence and critical review. Carbohydr Polym 2022; 291:119590. [DOI: 10.1016/j.carbpol.2022.119590] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 04/20/2022] [Accepted: 05/05/2022] [Indexed: 12/15/2022]
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8
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Li X, Dong H, Fan Q, Chen K, Sun D, Hu T, Ni Z. One-pot, rapid microwave-assisted synthesis of bimetallic metal–organic framework for efficient enzyme-free glucose detection. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Zhang Y, Zhang T, Zhang Y, Wu Z, Zhang P, Liu R, Chang M, Wang X. Microwave‐assisted catalytic synthesis of phytosterol esters. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yaru Zhang
- National Engineering Research Center for Functional Food Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Tao Zhang
- National Engineering Research Center for Functional Food Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Yu Zhang
- National Engineering Research Center for Functional Food Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Zhengzhang Wu
- Jiangsu CoNat Biological Products Co., Ltd Taizhou Jiangsu 225400 China
| | - Peng Zhang
- Jiangsu CoNat Biological Products Co., Ltd Taizhou Jiangsu 225400 China
| | - Ruijie Liu
- National Engineering Research Center for Functional Food Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Ming Chang
- National Engineering Research Center for Functional Food Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
| | - Xingguo Wang
- National Engineering Research Center for Functional Food Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province School of Food Science and Technology Jiangnan University Wuxi Jiangsu 214122 China
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10
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Jamali H, Teimuri‐Mofrad R. Synthesis of ferrocene‐based esters by alkylation of carboxylate ions and investigation of their electrochemical and optical behaviors. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hajar Jamali
- Department of Organic and Biochemistry, Faculty of Chemistry University of Tabriz Tabriz Iran
| | - Reza Teimuri‐Mofrad
- Department of Organic and Biochemistry, Faculty of Chemistry University of Tabriz Tabriz Iran
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11
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Mwaurah PW, Kumar S, Kumar N, Attkan AK, Panghal A, Singh VK. Ultrasound and microwave‐assisted solvent extraction of mango kernel oil and evaluation of physicochemical properties and fatty acid profile. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Peter Waboi Mwaurah
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Sunil Kumar
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Nitin Kumar
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Arun Kumar Attkan
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Anil Panghal
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
| | - Vijay Kumar Singh
- Department of Processing and Food Engineering College of Agricultural Engineering and Technology CCS Haryana Agricultural University Hisar India
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12
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Rani H, Sharma S, Bala M. Technologies for extraction of oil from oilseeds and other plant sources in retrospect and prospects: A review. J FOOD PROCESS ENG 2021. [DOI: 10.1111/jfpe.13851] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Heena Rani
- Oilseeds Section, Department of Plant Breeding and Genetics Punjab Agricultural University Ludhiana Punjab India
| | - Sanjula Sharma
- Oilseeds Section, Department of Plant Breeding and Genetics Punjab Agricultural University Ludhiana Punjab India
| | - Manju Bala
- FG & OP Division ICAR‐Central Institute of Post‐Harvest Engineering and Technology Ludhiana Punjab India
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13
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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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14
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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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15
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Sousa RR, Silva AS, Fernandez-Lafuente R, Ferreira-Leitão VS. Solvent-free esterifications mediated by immobilized lipases: a review from thermodynamic and kinetic perspectives. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00696g] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Esters are a highly relevant class of compounds in the industrial context, and biocatalysis applied to ester syntheses is already a reality for some chemical companies.
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Affiliation(s)
- Ronaldo Rodrigues Sousa
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, and Innovations, 20081-312, Rio de Janeiro, RJ, Brazil
| | - Ayla Sant'Ana Silva
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, and Innovations, 20081-312, Rio de Janeiro, RJ, Brazil
- Federal University of Rio de Janeiro, Department of Biochemistry, 21941-909, Rio de Janeiro, RJ, Brazil
| | - Roberto Fernandez-Lafuente
- Biocatalysis Department, ICP-CSIC, Campus UAM-CSIC, Madrid 28049, Spain
- Center of Excellence in Bionanoscience Research, External Scientific Advisory Academics, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Viridiana Santana Ferreira-Leitão
- Biocatalysis Laboratory, National Institute of Technology, Ministry of Science, Technology, and Innovations, 20081-312, Rio de Janeiro, RJ, Brazil
- Federal University of Rio de Janeiro, Department of Biochemistry, 21941-909, Rio de Janeiro, RJ, Brazil
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16
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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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17
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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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18
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Yin D, Sun J, Liu Y, Liu B. Novel Benzothiazole Ionic Liquids as Catalysts for the Synthesis of Parabens. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020050205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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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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20
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Microwave-assisted production of biodiesel using metal-organic framework Mg3(bdc)3(H2O)2. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0491-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Henary M, Kananda C, Rotolo L, Savino B, Owens EA, Cravotto G. Benefits and applications of microwave-assisted synthesis of nitrogen containing heterocycles in medicinal chemistry. RSC Adv 2020; 10:14170-14197. [PMID: 35498463 PMCID: PMC9051880 DOI: 10.1039/d0ra01378a] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 03/27/2020] [Indexed: 11/21/2022] Open
Abstract
Nitrogen containing heterocycles are of immense research interest because they are often found as naturally occurring bioactive compounds.
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Affiliation(s)
- Maged Henary
- Department of Chemistry
- Georgia State University
- Atlanta
- USA
- Center for Diagnostics and Therapeutics
| | - Carl Kananda
- Department of Chemistry
- Georgia State University
- Atlanta
- USA
| | - Laura Rotolo
- Department of Chemistry
- Georgia State University
- Atlanta
- USA
- Department of Drug Science and Technology and NIS – Centre for Nanostructured Interfaces and Surfaces
| | - Brian Savino
- Department of Chemistry
- Georgia State University
- Atlanta
- USA
| | - Eric A. Owens
- Department of Chemistry
- Georgia State University
- Atlanta
- USA
- Center for Diagnostics and Therapeutics
| | - Giancarlo Cravotto
- Department of Drug Science and Technology and NIS – Centre for Nanostructured Interfaces and Surfaces
- University of Turin
- 10125 Turin
- Italy
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22
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Mwaurah PW, Kumar S, Kumar N, Attkan AK, Panghal A, Singh VK, Garg MK. Novel oil extraction technologies: Process conditions, quality parameters, and optimization. Compr Rev Food Sci Food Saf 2019; 19:3-20. [DOI: 10.1111/1541-4337.12507] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 10/07/2019] [Accepted: 10/15/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Peter Waboi Mwaurah
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Sunil Kumar
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Nitin Kumar
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Arun Kumar Attkan
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Anil Panghal
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Vijay Kumar Singh
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
| | - Mukesh Kumar Garg
- Department of Processing and Food Engineering, College of Agricultural Engineering and TechnologyCCS Haryana Agricultural University Hisar Haryana 125 004 India
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Khan NR, Rathod VK. Enzymatic synthesis of cetyl oleate in a solvent-free medium using microwave irradiation and physicochemical evaluation. BIOCATAL BIOTRANSFOR 2019. [DOI: 10.1080/10242422.2019.1664480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Nishat R. Khan
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, India
| | - Virendra K. Rathod
- Department of Chemical Engineering, Institute of Chemical Technology, Mumbai, India
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