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Choosing Physical, Physicochemical and Chemical Methods of Pre-Treating Lignocellulosic Wastes to Repurpose into Solid Fuels. SUSTAINABILITY 2019. [DOI: 10.3390/su11133604] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Various methods of physical, chemical and combined physicochemical pre-treatments for lignocellulosic biomass waste valorisation to value-added feedstock/solid fuels for downstream processes in chemical industries have been reviewed. The relevant literature was scrutinized for lignocellulosic waste applicability in advanced thermochemical treatments for either energy or liquid fuels. By altering the overall naturally occurring bio-polymeric matrix of lignocellulosic biomass waste, individual components such as cellulose, hemicellulose and lignin can be accessed for numerous downstream processes such as pyrolysis, gasification and catalytic upgrading to value-added products such as low carbon energy. Assessing the appropriate lignocellulosic pre-treatment technology is critical to suit the downstream process of both small- and large-scale operations. The cost to operate the process (temperature, pressure or energy constraints), the physical and chemical structure of the feedstock after pre-treatment (decomposition/degradation, removal of inorganic components or organic solubilization) or the ability to scale up the pre-treating process must be considered so that the true value in the use of bio-renewable waste can be revealed.
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Fuel from Waste: A Review on Scientific Solution for Waste Management and Environment Conservation. PROSPECTS OF ALTERNATIVE TRANSPORTATION FUELS 2018. [DOI: 10.1007/978-981-10-7518-6_10] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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3
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Ma Y, Stubb J, Kontro I, Nieminen K, Hummel M, Sixta H. Filament spinning of unbleached birch kraft pulps: Effect of pulping intensity on the processability and the fiber properties. Carbohydr Polym 2017; 179:145-151. [PMID: 29111037 DOI: 10.1016/j.carbpol.2017.09.079] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 09/11/2017] [Accepted: 09/25/2017] [Indexed: 11/30/2022]
Abstract
Man-made lignocellulosic fibres were successfully prepared from unbleached birch kraft pulps by using the Ioncell-F technology. Pulps with different lignin content were produced by tailored kraft pulping with varying intensity. The degree of polymerization of the pulps was adjusted by acid-catalyzed hydrolysis and electron beam treatment. All substrates were completely soluble in 1,5-diazabicyclo[4.3.0]non-5-enium acetate ([DBNH]OAc) and the respective solutions were spinnable to yield fibres with good to excellent mechanical properties despite the use of only mildly refined wood pulp. The tensile properties decreased gradually as the lignin concentration in the fibres increased. Changes in the chemical composition also affected the structure and morphology of the fibres. Both the molecular orientation and the crystallinity decreased while the presence of lignin enhanced the water accessibility. The effects of the crystallite size and lignin content on monolayer water adsorption are discussed.
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Affiliation(s)
- Yibo Ma
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Jonas Stubb
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Inkeri Kontro
- Division of Material physics, Department of Physics, Helsinki University, P.O. Box 64, FI-00014, Finland
| | - Kaarlo Nieminen
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Michael Hummel
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Herbert Sixta
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, 00076 Aalto, Finland.
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Traoré Dubuis A, Verkhovtsev A, Ellis-Gibbings L, Krupa K, Blanco F, Jones DB, Brunger MJ, García G. Total cross section of furfural by electron impact: Experiment and theory. J Chem Phys 2017; 147:054301. [DOI: 10.1063/1.4996462] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A. Traoré Dubuis
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain
| | - A. Verkhovtsev
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain
| | - L. Ellis-Gibbings
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain
| | - K. Krupa
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain
| | - F. Blanco
- Departamento de Física Atómica, Molecular y Nuclear, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - D. B. Jones
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
| | - M. J. Brunger
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
| | - G. García
- Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain
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Zheng Y, Shi J, Tu M, Cheng YS. Principles and Development of Lignocellulosic Biomass Pretreatment for Biofuels. ADVANCES IN BIOENERGY 2017. [DOI: 10.1016/bs.aibe.2017.03.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Jones DB, Neves RFC, Lopes MCA, da Costa RF, do N Varella MT, Bettega MHF, Lima MAP, García G, Limão-Vieira P, Brunger MJ. Theoretical and experimental differential cross sections for electron impact excitation of the electronic bands of furfural. J Chem Phys 2016; 144:124309. [PMID: 27036450 DOI: 10.1063/1.4944615] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report results from a joint experimental and theoretical investigation into electron scattering from the important industrial species furfural (C5H4O2). Specifically, differential cross sections (DCSs) have been measured and calculated for the electron-impact excitation of the electronic states of C5H4O2. The measurements were carried out at energies in the range 20-40 eV, and for scattered-electron angles between 10° and 90°. The energy resolution of those experiments was typically ∼80 meV. Corresponding Schwinger multichannel method with pseudo-potential calculations, for energies between 6-50 eV and with and without Born-closure, were also performed for a sub-set of the excited electronic-states that were accessed in the measurements. Those calculations were undertaken at the static exchange plus polarisation-level using a minimum orbital basis for single configuration interaction (MOB-SCI) approach. Agreement between the measured and calculated DCSs was qualitatively quite good, although to obtain quantitative accord, the theory would need to incorporate even more channels into the MOB-SCI. The role of multichannel coupling on the computed electronic-state DCSs is also explored in some detail.
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Affiliation(s)
- D B Jones
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia
| | - R F C Neves
- Instituto Federal do Sul de Minas Gerais, Câmpus Poços de Caldas, Minas Gerais, Brazil
| | - M C A Lopes
- Departamento de Física, UFJF, Juiz de Fora, Minas Gerais 36036-900, Brazil
| | - R F da Costa
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo 09210-580, Brazil
| | - M T do N Varella
- Instituto de Física, Universidade de São Paulo, CP 66318, 05315-970 São Paulo, Brazil
| | - M H F Bettega
- Departamento de Física, Universidade Federal do Paraná, CP 19044, Curitiba, Paraná 81531-990, Brazil
| | - M A P Lima
- Instituto de Física "Gleb Wataghin," Universidade Estadual de Campinas, Campinas, São Paulo 13083-859, Brazil
| | - G García
- Instituto de Física Fundamental, CSIC, Serrano 113-bis, 28006 Madrid, Spain
| | - P Limão-Vieira
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - M J Brunger
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia
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7
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Singh R, Krishna BB, Kumar J, Bhaskar T. Opportunities for utilization of non-conventional energy sources for biomass pretreatment. BIORESOURCE TECHNOLOGY 2016; 199:398-407. [PMID: 26350883 DOI: 10.1016/j.biortech.2015.08.117] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/19/2015] [Accepted: 08/20/2015] [Indexed: 06/05/2023]
Abstract
The increasing concerns over the depletion of fossil resources and its associated geo-political issues have driven the entire world to move toward sustainable forms of energy. Pretreatment is the first step in any biochemical conversion process for the production of valuable fuels/chemicals from lignocellulosic biomass to eliminate the lignin and produce fermentable sugars by hydrolysis. Conventional techniques have several limitations which can be addressed by using them in tandem with non-conventional methods for biomass pretreatment. Electron beam and γ (gamma)-irradiation, microwave and ultrasound energies have certain advantages over conventional source of energy and there is an opportunity that these energies can be exploited for biomass pretreatment.
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Affiliation(s)
- Rawel Singh
- CSIR-Indian Institute of Petroleum (CSIR-IIP), Bio-Fuels Division (BFD), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Bhavya B Krishna
- CSIR-Indian Institute of Petroleum (CSIR-IIP), Bio-Fuels Division (BFD), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Jitendra Kumar
- CSIR-Indian Institute of Petroleum (CSIR-IIP), Bio-Fuels Division (BFD), Dehradun 248005, India
| | - Thallada Bhaskar
- CSIR-Indian Institute of Petroleum (CSIR-IIP), Bio-Fuels Division (BFD), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), New Delhi, India.
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8
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Prospects for Irradiation in Cellulosic Ethanol Production. BIOTECHNOLOGY RESEARCH INTERNATIONAL 2015; 2015:157139. [PMID: 26839707 PMCID: PMC4709612 DOI: 10.1155/2015/157139] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 11/16/2015] [Indexed: 11/24/2022]
Abstract
Second generation bioethanol production technology relies on lignocellulosic biomass composed of hemicelluloses, celluloses, and lignin components. Cellulose and hemicellulose are sources of fermentable sugars. But the structural characteristics of lignocelluloses pose hindrance to the conversion of these sugar polysaccharides into ethanol. The process of ethanol production, therefore, involves an expensive and energy intensive step of pretreatment, which reduces the recalcitrance of lignocellulose and makes feedstock more susceptible to saccharification. Various physical, chemical, biological, or combined methods are employed to pretreat lignocelluloses. Irradiation is one of the common and promising physical methods of pretreatment, which involves ultrasonic waves, microwaves, γ-rays, and electron beam. Irradiation is also known to enhance the effect of saccharification. This review explains the role of different radiations in the production of cellulosic ethanol.
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9
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Jones DB, Neves RFC, Lopes MCA, da Costa RF, Varella MTDN, Bettega MHF, Lima MAP, García G, Blanco F, Brunger MJ. Excitation of vibrational quanta in furfural by intermediate-energy electrons. J Chem Phys 2015; 143:224304. [PMID: 26671372 DOI: 10.1063/1.4936631] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report cross sections for electron-impact excitation of vibrational quanta in furfural, at intermediate incident electron energies (20, 30, and 40 eV). The present differential cross sections are measured over the scattered electron angular range 10°-90°, with corresponding integral cross sections subsequently being determined. Furfural is a viable plant-derived alternative to petrochemicals, being produced via low-temperature plasma treatment of biomass. Current yields, however, need to be significantly improved, possibly through modelling, with the present cross sections being an important component of such simulations. To the best of our knowledge, there are no other cross sections for vibrational excitation of furfural available in the literature, so the present data are valuable for this important molecule.
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Affiliation(s)
- D B Jones
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
| | - R F C Neves
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
| | - M C A Lopes
- Departamento de Física, Universidade Federal de Juiz de Fora, 36036-900, Juiz de Fora, MG, Brazil
| | - R F da Costa
- Instituto de Física "Gleb Wataghin," Universidade Estadual de Campinas, Campinas, 13083-859 São Paulo, Brazil
| | - M T do N Varella
- Instituto de Física, Universidade de São Paulo, CP 66318, 05315-970 São Paulo, São Paulo, Brazil
| | - M H F Bettega
- Departamento de Física, Universidade Federal do Paraná, CP 19044, 81531-990 Curitiba, Paraná, Brazil
| | - M A P Lima
- Instituto de Física "Gleb Wataghin," Universidade Estadual de Campinas, Campinas, 13083-859 São Paulo, Brazil
| | - G García
- Instituto de Física Fundamental, CSIC, Serrano 113-bis, 28006 Madrid, Spain
| | - F Blanco
- Departamento de Física Atómica, Molecular y Nuclear, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - M J Brunger
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
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10
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Jones DB, Ali E, Nixon KL, Limão-Vieira P, Hubin-Franskin MJ, Delwiche J, Ning CG, Colgan J, Murray AJ, Madison DH, Brunger MJ. Electron- and photon-impact ionization of furfural. J Chem Phys 2015; 143:184310. [DOI: 10.1063/1.4935444] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D. B. Jones
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia
| | - E. Ali
- Department of Physics, Missouri University of Science and Technology, Rolla, Missouri 65409, USA
| | - K. L. Nixon
- Departamento de Física, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brazil
- School of Biology, Chemistry and Forensic Science, University of Wolverhampton, Wolverhampton WV1 1LY, United Kingdom
| | - P. Limão-Vieira
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - M.-J. Hubin-Franskin
- Départment de Chimie, Université de Liège, Institut de Chimie-Bât. B6C, B-4000 Liège 1, Belgium
| | - J. Delwiche
- Départment de Chimie, Université de Liège, Institut de Chimie-Bât. B6C, B-4000 Liège 1, Belgium
| | - C. G. Ning
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - J. Colgan
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A. J. Murray
- Photon Science Institute, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, United Kingdom
| | - D. H. Madison
- Department of Physics, Missouri University of Science and Technology, Rolla, Missouri 65409, USA
| | - M. J. Brunger
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia
- Institute of Mathematical Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
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11
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Ferreira da Silva F, Lange E, Limão-Vieira P, Jones NC, Hoffmann SV, Hubin-Franskin MJ, Delwiche J, Brunger MJ, Neves RFC, Lopes MCA, de Oliveira EM, da Costa RF, Varella MTDN, Bettega MHF, Blanco F, García G, Lima MAP, Jones DB. Electronic excitation of furfural as probed by high-resolution vacuum ultraviolet spectroscopy, electron energy loss spectroscopy, and ab initio calculations. J Chem Phys 2015; 143:144308. [DOI: 10.1063/1.4932603] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- F. Ferreira da Silva
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - E. Lange
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - P. Limão-Vieira
- Laboratório de Colisões Atómicas e Moleculares, CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
| | - N. C. Jones
- ISA, Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Århus C, Denmark
| | - S. V. Hoffmann
- ISA, Department of Physics and Astronomy, Aarhus University, Ny Munkegade, DK-8000 Århus C, Denmark
| | - M.-J. Hubin-Franskin
- Départment de Chimie, Institut de Chimie-Bât. B6C, Université de Liège, B-4000 Liège 1, Belgium
| | - J. Delwiche
- Départment de Chimie, Institut de Chimie-Bât. B6C, Université de Liège, B-4000 Liège 1, Belgium
| | - M. J. Brunger
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
- Institute of Mathematical Sciences, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - R. F. C. Neves
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
- Departamento de Física, Universidade Federal de Juíz de Fora, Juíz de Fora, MG, Brazil
- Instituto Federal do Sul de Minas Gerais, Campus Poços de Caldas, Minas Gerais, Brazil
| | - M. C. A. Lopes
- Departamento de Física, Universidade Federal de Juíz de Fora, Juíz de Fora, MG, Brazil
| | - E. M. de Oliveira
- Instituto de Física “Gleb Wataghin,” Universidade Estadual de Campinas, 13083-859 Campinas, São Paulo, Brazil
| | - R. F. da Costa
- Instituto de Física “Gleb Wataghin,” Universidade Estadual de Campinas, 13083-859 Campinas, São Paulo, Brazil
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-580 Santo André, São Paulo, Brazil
| | - M. T. do N. Varella
- Instituto de Física, Universidade de São Paulo, CP 66318, 05315-970 São Paulo, Brazil
| | - M. H. F. Bettega
- Departamento de Física, Universidade Federal do Paraná, CP 19044, Curitiba, Paraná 81531-990, Brazil
| | - F. Blanco
- Departamento de Física Atómica, Molecular y Nuclear, Universidad Complutense de Madrid, Madrid E-28040, Spain
| | - G. García
- Instituto de Fisica Fundamental, CSIC, Serrano 113-bis, 28006 Madrid, Spain
| | - M. A. P. Lima
- Instituto de Física “Gleb Wataghin,” Universidade Estadual de Campinas, 13083-859 Campinas, São Paulo, Brazil
| | - D. B. Jones
- School of Chemical and Physical Sciences, Flinders University, GPO Box 2100, Adelaide, South Australia 5001, Australia
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Lee JY, Lee BM, Jeun JP, Kang PH. Pretreatment of Kenaf Core by Combined Electron Beam Irradiation and Water Steam for Enhanced Hydrolysis. KOREAN CHEMICAL ENGINEERING RESEARCH 2014. [DOI: 10.9713/kcer.2014.52.1.113] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Song JM, Lee SY, Woo HS, Sohn JY, Shin J. Thermal behavior of poly(vinylbenzyl chloride)-grafted poly(ethylene-co
-tetrafluoroethylene) films. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/polb.23445] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ju-Myung Song
- Research Division of Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil; Jeongeup-si Jeollabuk-do 580-185 Republic of Korea
| | - Sun-Young Lee
- Research Division of Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil; Jeongeup-si Jeollabuk-do 580-185 Republic of Korea
| | - Hyun-Su Woo
- Research Division of Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil; Jeongeup-si Jeollabuk-do 580-185 Republic of Korea
| | - Joon-Yong Sohn
- Research Division of Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil; Jeongeup-si Jeollabuk-do 580-185 Republic of Korea
| | - Junhwa Shin
- Research Division of Industry and Environment, Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, 29 Geumgu-gil; Jeongeup-si Jeollabuk-do 580-185 Republic of Korea
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Bak JS, Ko JK, Han YH, Lee BC, Choi IG, Kim KH. Improved enzymatic hydrolysis yield of rice straw using electron beam irradiation pretreatment. BIORESOURCE TECHNOLOGY 2009; 100:1285-90. [PMID: 18930388 DOI: 10.1016/j.biortech.2008.09.010] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2008] [Revised: 09/04/2008] [Accepted: 09/04/2008] [Indexed: 05/16/2023]
Abstract
Rice straw was irradiated using an electron beam at currents and then hydrolyzed with cellulase and beta-glucosidase to produce glucose. The pretreatment by electron beam irradiation (EBI) was found to significantly increase the enzyme digestibility of rice straw. Specifically, when rice straw that was pretreated by EBI at 80 kGy at 0.12 mA and 1 MeV was hydrolyzed with 60 FPU of cellulase and 30 CBU of beta-glucosidase, the glucose yield after 132 h of hydrolysis was 52.1% of theoretical maximum. This value was significantly higher than the 22.6% that was obtained when untreated rice straw was used. In addition, SEM analysis of pretreated rice straw revealed that EBI caused apparent damage to the surface of the rice straw. Furthermore, EBI pretreatment was found to increase the crystalline portion of the rice straw. Finally, the crystallinity and enzyme digestibility were found to be strongly correlated between rice straw samples that were pretreated by EBI under different conditions.
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Affiliation(s)
- Jin Seop Bak
- Brain Korea 21 School of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
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15
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Bhatt AK, Bhalla TC, Agrawal HO, Sharma N. Enhanced degradation of gamma-irradiated lignocelluloses by a new xylanolytic Flavobacterium sp. isolated from soil. Lett Appl Microbiol 1992. [DOI: 10.1111/j.1472-765x.1992.tb00708.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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16
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Madamwar D, Patel S, Parikh H. Solid state fermentation for cellulases and β-glucosidase production by Aspergillus niger. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0922-338x(89)90150-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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