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Yang Y, Ma X, Wang M, Ji X, Li L, Liu Z, Wang J, Ren Y, Jia L. Mild γ-Butyrolactone/Water Pretreatment for Highly Efficient Sugar Production from Corn Stover. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04922-6. [PMID: 38589715 DOI: 10.1007/s12010-024-04922-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2024] [Indexed: 04/10/2024]
Abstract
In this study, γ-butyrolactone/water (GBL/H2O) was explored as a mild, efficient, and cost-effective binary solvent pretreatment to enhance hydrolyzability of corn stover (CS). Key pretreatment parameters-reaction time, temperature, and H2SO4 concentration-were systematically investigated for their effects on the physicochemical properties of CS. Specifically, increased temperature and acid concentration significantly decreased cellulose crystallinity (from 1.39 for untreated CS to 1.04 for CS pretreated by GBL/H2O with 100 mM H2SO4 at 120 °C for 1 h) and promoted lignin removal (47.3% for CS pretreated by GBL/H2O with 150 mM H2SO4 at 120 °C for 1 h). Acknowledging the cellulase's limited hydrolysis efficiency, a dual-enzyme scheme using a low cellulase dosage (10 FPU/g) supplemented with β-glucosidase or xylanase was tested, enhancing hydrolysis of CS pretreated under low temperature-long duration and high temperature-short duration conditions, respectively. Optimum sugar release was obtained from CS pretreated with GBL/H2O and 150 mM H2SO4 at 120 °C for 1 h, achieving 98% glucan and 82.3% xylan conversion, compared with 53.9% and 17% of glucan and xylan conversion from untreated CS. GBL/H2O pretreatment outperformed other binary systems in literature, achieving the highest sugar conversions with lower enzyme loading. These results highlight the potential of GBL/H2O pretreatment for efficient biomass conversion, contributing to the goals of the green economy.
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Affiliation(s)
- Yu Yang
- College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Xueliang Ma
- College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Manzhu Wang
- College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Xinyi Ji
- College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Long Li
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
- Bamboo Research Institute, Nanjing Forestry University, Nanjing, 210037, China
| | - Ziyu Liu
- College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Jiangyao Wang
- College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Yujin Ren
- College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China
| | - Lili Jia
- College of Forestry, Northwest A&F University, No.3 Taicheng Road, Yangling, Shaanxi, 712100, China.
- Shaanxi Key Laboratory of Economic Plant Resources Development and Utilization, Yangling, Shaanxi, 712100, China.
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Nair LG, Agrawal K, Verma P. Organosolv pretreatment: an in-depth purview of mechanics of the system. BIORESOUR BIOPROCESS 2023; 10:50. [PMID: 38647988 PMCID: PMC10991910 DOI: 10.1186/s40643-023-00673-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/03/2023] [Indexed: 04/25/2024] Open
Abstract
The concept of biorefinery has been advancing globally and organosolv pretreatment strategy has seen an upsurge in research due to its efficiency in removing the recalcitrant lignin and dissolution of cellulose. The high-performance organosolv system uses green solvents and its reusability contributes concurrently to the biorefinery sector and sustainability. The major advantage of the current system involves the continuous removal of lignin to enhance cellulose accessibility, thereby easing the later biorefinery steps, which were immensely restricted due to the recalcitrant lignin. The current system process can be further explored and enhanced via the amalgamation of new technologies, which is still a work in progress. Thus, the current review summarizes organosolv pretreatment and the range of solvents used, along with a detailed mechanistic approach that results in efficient pretreatment of LCB. The latest developments for designing high-performance pretreatment systems, their pitfalls, and advanced assessments such as Life Cycle Assessment along with Techno-Economic Assessment have also been deliberated to allow an insight into its diverse potential applicability towards a sustainable future.
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Affiliation(s)
- Lakshana G Nair
- Bioprocess and Bioenergy Laboratory, Department of Microbiology, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India
| | - Komal Agrawal
- Bioprocess and Bioenergy Laboratory, Department of Microbiology, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India
- Department of Microbiology, School of Bio Engineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Pradeep Verma
- Bioprocess and Bioenergy Laboratory, Department of Microbiology, Central University of Rajasthan, Bandarsindri, Kishangarh, Ajmer, Rajasthan, 305817, India.
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Fernández-Bautista M, Martínez-Gómez S, Rivas S, Alonso JL, Parajó JC. Advances on Cellulose Manufacture in Biphasic Reaction Media. Int J Mol Sci 2023; 24:12404. [PMID: 37569779 PMCID: PMC10418468 DOI: 10.3390/ijms241512404] [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: 07/14/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Cellulose is produced industrially by the kraft and sulfite processes. The evolution of these technologies in biorefineries is driven by the need to obtain greater added value through the efficient use of raw materials and energy. In this field, organosolv technologies (and within them, those using liquid phases made up of water and one partly miscible organic solvent, known as "biphasic fractionation" in reference to the number of liquid phases) represent an alternative that is receiving increasing interest. This study considers basic aspects of the composition of lignocellulosic materials, describes the fundamentals of industrial cellulose pulp production processes, introduces the organosolv methods, and comprehensively reviews published results on organosolv fractionation based on the use of media containing water and an immiscible solvent (1-butanol, 1-pentanol or 2-methyltetrahydrofuran). Special attention is devoted to aspects related to cellulose recovery and fractionation selectivity, measured through the amount and composition of the treated solids.
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Affiliation(s)
- Marcos Fernández-Bautista
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
| | - Sergio Martínez-Gómez
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
| | - Sandra Rivas
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
| | - José Luis Alonso
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
| | - Juan Carlos Parajó
- Faculty of Science, Chemical Engineering Department, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas, 32004 Ourense, Spain; (M.F.-B.); (S.M.-G.); (S.R.); (J.L.A.)
- CINBIO, University of Vigo (Campus Lagoas-Marcosende), 36310 Vigo, Spain
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4
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Zhan Q, Lin Q, Wu Y, Liu Y, Wang X, Ren J. A fractionation strategy of cellulose, hemicellulose, and lignin from wheat straw via the biphasic pretreatment for biomass valorization. BIORESOURCE TECHNOLOGY 2023; 376:128887. [PMID: 36925080 DOI: 10.1016/j.biortech.2023.128887] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/07/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Developing an environmentally friendly and efficient pretreatment to utilize wheat straw is essential to a sustainable future. An acid biphasic system with 2-methyltetrahydrofuran (2-MeTHF) organic solvent and dilute p-toluenesulfonic acid (p-TsOH) were employed for the simultaneous fractionation of three components. Results showed that the biphasic system had excellent cellulose protection and high removal of hemicellulose and lignin. In detail, Under the optimal conditions (0.1 M p-TsOH, 2-MeTHF: H2O = 1:1 (v:v), 140 °C, 3 h), mostly cellulose retained in the residues (95.69%), 57.18% of lignin was removed and high yield of hemicellulose-based C5 sugars was achieved (77.49%). In the further process of dehydration of pre-hydrolysate dichloromethane (DCM) as an organic phase, the yield of furfural was 80.07% (170 °C-80 min). The saccharification of residue reached 95.82%. p-TsOH/2-MeTHF/H2O pretreatment was desirable for high selectivity fractionation. Important chemicals for bioenergy including furfural, monosaccharides and lignin are obtained.
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Affiliation(s)
- Qiwen Zhan
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Qixuan Lin
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yue Wu
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yao Liu
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xingjie Wang
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Junli Ren
- State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China.
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Shukla A, Kumar D, Girdhar M, Kumar A, Goyal A, Malik T, Mohan A. Strategies of pretreatment of feedstocks for optimized bioethanol production: distinct and integrated approaches. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:44. [PMID: 36915167 PMCID: PMC10012730 DOI: 10.1186/s13068-023-02295-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 03/02/2023] [Indexed: 03/14/2023]
Abstract
Bioethanol is recognized as a valuable substitute for renewable energy sources to meet the fuel and energy demand of the nation, considered an environmentally friendly resource obtained from agricultural residues such as sugarcane bagasse, rice straw, husk, wheat straw and corn stover. The energy demand is sustained using lignocellulosic biomass to produce bioethanol. Lignocellulosic biomass (LCBs) is the point of attention in replacing the dependence on fossil fuels. The recalcitrant structure of the lignocellulosic biomass is disrupted using effective pretreatment techniques that separate complex interlinked structures among cellulose, hemicellulose, and lignin. Pretreatment of biomass involves various physical, chemical, biological, and physiochemical protocols which are of importance, dependent upon their individual or combined dissolution effect. Physical pretreatment involves a reduction in the size of the biomass using mechanical, extrusion, irradiation, and sonification methods while chemical pretreatment involves the breaking of various bonds present in the LCB structure. This can be obtained by using an acidic, alkaline, ionic liquid, and organosolvent methods. Biological pretreatment is considered an environment-friendly and safe process involving various bacterial and fungal microorganisms. Distinct pretreatment methods, when combined and utilized in synchronization lead to more effective disruption of LCB, making biomass more accessible for further processing. These could be utilized in terms of their effectiveness for a particular type of cellulosic fiber and are namely steam explosion, liquid hot water, ammonia fibre explosion, CO2 explosion, and wet air oxidation methods. The present review encircles various distinct and integrated pretreatment processes developed till now and their advancement according to the current trend and future aspects to make lignocellulosic biomass available for further hydrolysis and fermentation.
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Affiliation(s)
- Akanksha Shukla
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, 144411, India
| | - Deepak Kumar
- School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, 144411, India
| | - Madhuri Girdhar
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, 144411, India
| | - Anil Kumar
- Gene Regulation Laboratory, National Institute of Immunology, New Delhi, 110067, India
| | - Abhineet Goyal
- SAGE School of Science, SAGE University Bhopal, Sahara Bypass Road Katara Hills, Extension, Bhopal, Madhya Pradesh, 462022, India
| | - Tabarak Malik
- Department of Biomedical Sciences, Institute of Health, Jimma University, Jimma, Ethiopia.
| | - Anand Mohan
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, 144411, India.
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6
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Fractionation of lignin from rice straw using an acidified biphasic solvent system. Int J Biol Macromol 2023; 230:123249. [PMID: 36639079 DOI: 10.1016/j.ijbiomac.2023.123249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 01/12/2023]
Abstract
To obtain lignin from lignocellulosic biomass, phenoxyethanol (EPH) was employed to construct a biphasic solvent system. The concentration of EPH in this biphasic solvent system was first studied to determine a pretreatment condition for fractionation of lignin. Then, the fractionation of lignin from rice straw was performed under the conditions of temperature 130 °C, cooking time 60 min and sulfuric acid concentration 0.1 M, in 70 % aqueous EPH solvent system. The results showed that 50.97 %, 49.52 % or 82.02 % of the removed lignin with the purity of 89.04 %, 91.30 % or 84.76 % was regenerated from EPH liquor using dimethyl carbonate (DMC), dimethoxymethane (DMM) or diethyl ether (DE) as precipitant, respectively. Additionally, the weight-average molecular weight (Mw) and dispersity index (Đ) of the regenerated lignin decreased to 4247-4809 g/mol and 1.26-1.60 compared with that of the original lignin (5654 g/mol and 4.78). Finally, the compositional and structural characteristics of lignin, e.g., molecular weight and molecular structure, were also investigated by DSC, HSQC and elemental analysis.
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7
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Zhang Q, Dai C, Tan X, He X, Zhang K, Xu X, Zhuang X. Biphasic fractionation of lignocellulosic biomass based on the combined action of pretreatment severity and solvent effects on delignification. BIORESOURCE TECHNOLOGY 2023; 369:128477. [PMID: 36509300 DOI: 10.1016/j.biortech.2022.128477] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
A novel method based on pretreatment severity and solvent effects on delignification, was introduced to pretreat and fractionate lignocellulose in a 2-phenoxyethanol (EPH) biphasic solvent system. The combined severity factor (CSF) was used to regulate pretreatment severity, and the relative energy difference (RED) of solvent system to lignin was used to evaluate solvent effects. The combined action of pretreatment severity and solvent effects on delignification was first investigated by the response surface regression analysis on the pretreatment of Amorpha. Accordingly, pretreatment and fractionation of Amorpha, poplar and corn straw were then conducted under the optimized conditions. Results showed that >99 % lignin was removed after pretreatment with CSF 3.7845 in a solvent system with RED 0.9371, and 42.94 %, 39.41 % and 70.90 % lignin from Amorpha, poplar and corn straw were respectively regenerated from organosolv liquor after fractionation. Finally, the regenerated products were characterized by FTIR, TG and GPC analysis.
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Affiliation(s)
- Quan Zhang
- Biochemical Engineering Research Center, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China; School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China; Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China
| | - Chenxing Dai
- Biochemical Engineering Research Center, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China; School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China
| | - Xuesong Tan
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China
| | - Xiaojun He
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China
| | - Kai Zhang
- Biochemical Engineering Research Center, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China; School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China
| | - Xia Xu
- Biochemical Engineering Research Center, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China; School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243002, PR China
| | - Xinshu Zhuang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, CAS Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, PR China.
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Meng X, Wang Y, Conte AJ, Zhang S, Ryu J, Wie JJ, Pu Y, Davison BH, Yoo CG, Ragauskas AJ. Applications of biomass-derived solvents in biomass pretreatment - Strategies, challenges, and prospects. BIORESOURCE TECHNOLOGY 2023; 368:128280. [PMID: 36368492 DOI: 10.1016/j.biortech.2022.128280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Biomass pretreatment is considered a key step in the 2nd generation biofuel production from lignocellulosic biomass. Research on conventional biomass pretreatment solvents has mainly been focused on carbohydrate conversion efficiency, while their hazardousness and/or carbon intensity were not comprehensively considered. Recent sustainability issues request further consideration for eco-friendly and sustainable alternatives like biomass-derived solvents. Carbohydrate and lignin-derived solvents have been proposed and investigated as green alternatives in many biomass processes. In this review, the applications of different types of biomass pretreatment solvents, including organic, ionic liquid, and deep eutectic solvents, are thoroughly discussed. The role of water as a co-solvent in these pretreatment processes is also reviewed. Finally, current research challenges and prospects of utilizing biomass-derived pretreatment solvents for pretreatment are discussed. Given bioethanol's market potential and increasing public awareness about environmental concerns, it will be a priority adopting sustainable and green biomass pretreatment solvents in biorefinery.
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Affiliation(s)
- Xianzhi Meng
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA
| | - Yunxuan Wang
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA; Department of Chemical Engineering, State University of New York - College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Austin J Conte
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA
| | - Shuyang Zhang
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA
| | - Jiae Ryu
- Department of Chemical Engineering, State University of New York - College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Jeong Jae Wie
- Department of Chemical Engineering, State University of New York - College of Environmental Science and Forestry, Syracuse, NY 13210, USA; Department of Organic and Nano Engineering, Hanyang University, Seoul 04763, Republic of Korea; Human-Tech Convergence Program, Hanyang University, Seoul 04763, Republic of Korea; Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea; Institute of Nano Science and Technology, Hanyang University, Seoul 04763, Republic of Korea; The Michael M. Szwarc Polymer Research Institute, Syracuse, NY 13210, USA
| | - Yunqiao Pu
- Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Joint Institute for Biological Sciences, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA
| | - Brian H Davison
- Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA
| | - Chang Geun Yoo
- Department of Chemical Engineering, State University of New York - College of Environmental Science and Forestry, Syracuse, NY 13210, USA; The Michael M. Szwarc Polymer Research Institute, Syracuse, NY 13210, USA
| | - Arthur J Ragauskas
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA; Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Joint Institute for Biological Sciences, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Department of Forestry, Wildlife and Fisheries, Center of Renewable Carbon, The University of Tennessee, Institute of Agriculture, Knoxville, TN 37996-2200, USA.
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Madadi M, Song G, Karimi K, Zhu D, Elsayed M, Sun F, Abomohra A. One-step lignocellulose fractionation using acid/pentanol pretreatment for enhanced fermentable sugar and reactive lignin production with efficient pentanol retrievability. BIORESOURCE TECHNOLOGY 2022; 359:127503. [PMID: 35728765 DOI: 10.1016/j.biortech.2022.127503] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
To valorize whole lignocellulosic biomass, this study proposed a biphasic solvent system using dilute acid (DA)/pentanol pretreatment. Effects of the key factors, i.e., temperature and pentanol concentration, on aspen were evaluated. Under identified optimal pretreatment conditions (160 °C, 60% pentanol), 85% and 91% of lignin and hemicellulose were solubilized in separate organic and liquid phases, respectively, while 91.1% of cellulose was retained in solid fraction. Enzymatic digestibility efficiency of pretreated cellulose was ∼ 6.4-times higher than that of untreated biomass. Notably, excellent pentanol recovery rates were obtained after four-times recycling (84%) with great cellulose digestibility (81%) and delignification (71%) performance. The recovered lignin contained low levels of contaminated sugars (<1%), while it could stabilize and protect high amounts of β-O-4 bonds. Besides, high phenolic OH content was found in lignin, which could be utilized for lignin-based biomaterials. Therefore, DA/pentanol pretreatment is an innovative promising technology for lignocellulosic valorization towards biorefinery.
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Affiliation(s)
- Meysam Madadi
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Guojie Song
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Keikhosro Karimi
- Department of Chemical Engineering, Vrije Universiteit Brussel, 1050 Brussels, Belgium; Department of Chemical Engineering, Isfahan University of Technology, 84156-83111 Isfahan, Iran
| | - Daochen Zhu
- Biofuels Institute, School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Mahdy Elsayed
- Department of Agricultural Engineering, Faculty of Agriculture, Cairo University, 12613 Giza, Egypt
| | - Fubao Sun
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi 214122, China
| | - Abdelfatah Abomohra
- Department of Environmental Engineering, School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China
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10
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Sun LL, Yue Z, Sun SC, Sun SN, Cao XF, Yuan TQ, Wen JL. Exploration of deep eutectic solvent-based biphasic system for furfural production and enhancing enzymatic hydrolysis: Chemical, topochemical, and morphological changes. BIORESOURCE TECHNOLOGY 2022; 352:127074. [PMID: 35346816 DOI: 10.1016/j.biortech.2022.127074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
Developing a biorefinery process for a highly integrated valorization and fractionation of lignocellulose is crucial for its utilization. Herein, a biphasic system comprising choline chloride/lactic acid and 2-methyltetrahydrofuran with Al2(SO4)3 and H2SO4 as catalysts was applied to pretreat Eucalyptus. Results showed that under the optimized conditions (150 °C, 30 min, 0.2 M Al2(SO4)3, 0.075 M H2SO4), the furfural yield and enzymatic hydrolysis efficiency could reach 54.7% and 97.0%, respectively. The efficient cellulose conversion was attributed to remarkable removal of lignin (91.0%) and hemicelluloses (100.0%), thereby causing the disruption of cell wall structure and enhancement of cellulose accessibility. Meanwhile, confocal Raman microscope and atomic force microscope displayed that the pretreatment resulted in the decreasing intensities of carbohydrates and lignin different regions of cell walls, and exposing of the embedded microfibers from noncellulosic polymers. Overall, the deep eutectic solvent-based biphasic system displayed high performance for effective utilization of carbohydrate components in lignocellulose.
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Affiliation(s)
- Li-Li Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Zhuang Yue
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Shao-Chao Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Shao-Ni Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
| | - Xue-Fei Cao
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Tong-Qi Yuan
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Jia-Long Wen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
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Shi L, Zhang T, Zhou X, Yao L, Yang L, Yue F, Lan W, Lu F. Isolation, Characterization, and Depolymerization of l-Cysteine Substituted Eucalyptus Lignin. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2100130. [PMID: 35433027 PMCID: PMC8995711 DOI: 10.1002/gch2.202100130] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/15/2022] [Indexed: 06/14/2023]
Abstract
Lignin condensation reactions are hard to avoid or control during separation, which is a deterrent to lignin isolation and post-conversation, especially for the full utilization of lignocelluloses. Selective protection of β-aryl ether linkages in the isolation process is crucial to lignin valorization. Herein, a two-step acid/alkali separation method assisted with l-cysteine for eucalyptus lignin separation is developed, and the isolated l-cysteine lignins (LCLs) are comprehensively characterized by 2D NMR, 31P NMR, thioacidolysis, etc. Compared to the two-step control treatment, a much higher β-O-4 content is preserved without reducing the separation efficiency assisted by l-cysteine, which is also significantly higher than alkali lignin and kraft lignin. The results of hydrogenolysis show that LCLs generate a much higher monomer yield than that of control sample. Structural analysis of LCLs suggests that lignin condensation reaction, to some extent, is suppressed by adding l-cysteine during the two-step acid/alkali separation. Further, mechanistic studies using dimeric model compound reveals that l-cysteine may be the α-carbon protective agent in the two-step separation. The role of l-cysteine in the two-step lignin isolation method provides novel insights to the selective fractionation of lignin from biomass, especially for the full valorization of lignocellulosic biomass.
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Affiliation(s)
- Lanlan Shi
- State Key Laboratory of Pulp and Paper EngineeringSchool of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Tanhao Zhang
- State Key Laboratory of Pulp and Paper EngineeringSchool of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Xin Zhou
- State Key Laboratory of Pulp and Paper EngineeringSchool of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Lu Yao
- State Key Laboratory of Pulp and Paper EngineeringSchool of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Linjie Yang
- State Key Laboratory of Pulp and Paper EngineeringSchool of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Fengxia Yue
- State Key Laboratory of Pulp and Paper EngineeringSchool of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Wu Lan
- State Key Laboratory of Pulp and Paper EngineeringSchool of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China
| | - Fachuang Lu
- State Key Laboratory of Pulp and Paper EngineeringSchool of Light Industry and EngineeringSouth China University of TechnologyGuangzhou510640China
- Department of Biochemistry and Great Lakes Bioenergy Research CenterThe Wisconsin Energy InstituteUniversity of WisconsinMadisonWI53726USA
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12
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Optimized Organosolv Pretreatment of Biomass Residues Using 2-Methyltetrahydrofuran and n-Butanol. Processes (Basel) 2021. [DOI: 10.3390/pr9112051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Wheat straw and eucalyptus residues were pretreated in a biphasic system, constituted of butanol (n-butanol) or 2-methyltetrahydrofuran (2M-THF) and aqueous oxalic acid solutions. The pretreatments were carried out in a 300 mL Parr reactor (Autoclave Buchi Limbo-li®) with a solid load of 5 wt.%, the temperature in the range 140–180 °C, oxalic acid load from 0 to 10 wt.% and a duration of 30–90 min. The obtained slurry was then fractionated in three streams: the aqueous phase which contained solubilized hemicellulose, the organic phase which contained the solvated lignin, and the solid residue which contained cellulose. The solid was hydrolyzed using a commercial mix of enzymes to assess cellulose digestibility and glucose production. The pretreatment was optimized to maximize the purity of the cellulose and hemicellulose fractions and the glucose recovery as free sugar. The optimization was done by using an experimental design and response surface methodology. The mass flow details of the four optimized processes were obtained. In terms of biomass fractionation, butanol demonstrated significant advantages over 2M-THF in the same range of process conditions as shown by the recovery yield of free glucose which reached 98% of the theoretical value with butanol but was 67% with 2M-THF. Tests at low temperature and low enzyme loading highlighted the importance of the solvent choice over the operating conditions. 2M-THF showed interesting performances only in the delignification step, with 90% efficiency for the straw. Regarding the use of different feedstock, fractionation and recovery were generally higher for wheat straw than for eucalyptus wood residues.
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13
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Arturi K, Rohrbach T, Vogel F, Bjelić S. High Yields of Aromatic Monomers from Acidolytic Oxidation of Kraft Lignin in a Biphasic System. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Katarzyna Arturi
- Energy and Environment Division, Laboratory for Bioenergy and Catalysis, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Thomas Rohrbach
- Energy and Environment Division, Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
| | - Frédéric Vogel
- Energy and Environment Division, Laboratory for Bioenergy and Catalysis, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
- Institute of Bioenergy and Resource Efficiency, University of Applied Sciences Northwestern Switzerland (FHNW), Klosterzelgstrasse 2, 5210 Windisch, Switzerland
| | - Saša Bjelić
- Energy and Environment Division, Laboratory for Bioenergy and Catalysis, Paul Scherrer Institute, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland
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14
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Tan J, Li Y, Tan X, Wu H, Li H, Yang S. Advances in Pretreatment of Straw Biomass for Sugar Production. Front Chem 2021; 9:696030. [PMID: 34164381 PMCID: PMC8215366 DOI: 10.3389/fchem.2021.696030] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 05/12/2021] [Indexed: 11/29/2022] Open
Abstract
Straw biomass is an inexpensive, sustainable, and abundant renewable feedstock for the production of valuable chemicals and biofuels, which can surmount the main drawbacks such as greenhouse gas emission and environmental pollution, aroused from the consumption of fossil fuels. It is rich in organic content but is not sufficient for extensive applications because of its natural recalcitrance. Therefore, suitable pretreatment is a prerequisite for the efficient production of fermentable sugars by enzymatic hydrolysis. Here, we provide an overview of various pretreatment methods to effectively separate the major components such as hemicellulose, cellulose, and lignin and enhance the accessibility and susceptibility of every single component. This review outlines the diverse approaches (e.g., chemical, physical, biological, and combined treatments) for the excellent conversion of straw biomass to fermentable sugars, summarizes the benefits and drawbacks of each pretreatment method, and proposes some investigation prospects for the future pretreatments.
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Affiliation(s)
- Jinyu Tan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State Local Joint Engineering Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, China.,Institute of Crops Germplasm Resources, Guizhou Academy of Agricultural Sciences, Guiyang, China
| | - Yan Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State Local Joint Engineering Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, China
| | - Xiang Tan
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State Local Joint Engineering Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, China
| | - Hongguo Wu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State Local Joint Engineering Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, China
| | - Hu Li
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State Local Joint Engineering Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, China
| | - Song Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, State Local Joint Engineering Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, China
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15
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Wang YY, Scheidemantle B, Wyman CE, Cai CM, Ragauskas AJ. Polyurethanes Based on Unmodified and Refined Technical Lignins: Correlation between Molecular Structure and Material Properties. Biomacromolecules 2021; 22:2129-2136. [PMID: 33900737 DOI: 10.1021/acs.biomac.1c00223] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The structural complexity and robust intermolecular interactions have challenged the incorporation of technical lignin into value-added polymeric materials for decades. To study the correlation between lignin molecular structure and material properties of lignin-based polyurethanes, we applied co-solvent enhanced lignocellulosic fractionation pretreatment followed by sequential precipitation to produce three distinct lignin preparations with narrowly distributed (molecular weight dispersity <2) and comparatively low molecular weight (<1500 g/mol) from poplar biomass. Structural characterization indicated that these lignin preparations differed in average molecular chain length and stiffness as well as hydroxyl group distribution. Secondary hydroxyl group providers such as aliphatic diols and polyethers were incorporated as building blocks into the lignin-based polyurethanes to provide additional hydrogen capacity to improve the dispersion of lignin in the polyurethane network. The selected aliphatic diols and polyethers interacted with lignin molecules at different levels of strength depending on their molecular structure, and their impacts were ultimately reflected in the mechanical and thermal properties of the resulting lignin-based polyurethanes. The copolymerization of technical lignin with tailored structure and secondary hydroxyl providers could provide new strategies in formulating lignin-based/containing polyurethanes for various functional applications.
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Affiliation(s)
- Yun-Yan Wang
- Center for Renewable Carbon, Department of Forestry, Wildlife, and Fisheries, University of Tennessee Institute of Agriculture, Knoxville, Tennessee 37996, United States
| | - Brent Scheidemantle
- Center for Environmental Research and Technology (CE-CERT), Bourns College of Engineering, University of California, Riverside, California 92507, United States.,The Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Charles E Wyman
- Center for Environmental Research and Technology (CE-CERT), Bourns College of Engineering, University of California, Riverside, California 92507, United States.,The Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.,Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California Riverside, Riverside, California 92521, United States
| | - Charles M Cai
- Center for Environmental Research and Technology (CE-CERT), Bourns College of Engineering, University of California, Riverside, California 92507, United States.,The Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.,Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California Riverside, Riverside, California 92521, United States
| | - Arthur J Ragauskas
- Center for Renewable Carbon, Department of Forestry, Wildlife, and Fisheries, University of Tennessee Institute of Agriculture, Knoxville, Tennessee 37996, United States.,The Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.,Joint Institute for Biological Science, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States.,Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
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16
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Green Deep Eutectic Solvents for Microwave-Assisted Biomass Delignification and Valorisation. Molecules 2021; 26:molecules26040798. [PMID: 33557106 PMCID: PMC7913847 DOI: 10.3390/molecules26040798] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/22/2021] [Accepted: 02/01/2021] [Indexed: 11/17/2022] Open
Abstract
Aiming to fulfil the sustainability criteria of future biorefineries, a novel biomass pretreatment combining natural deep eutectic solvents (NaDESs) and microwave (MW) technology was developed. Results showed that NaDESs have a high potential as green solvents for lignin fractionation/recovery and sugar release in the following enzymatic hydrolysis. A new class of lignin derived NaDESs (LigDESs) was also investigated, showing promising effects in wheat straw delignification. MW irradiation enabled a fast pretreatment under mild condition (120 °C, 30 min). To better understand the interaction of MW with these green solvents, the dielectric properties of NaDESs were investigated. Furthermore, a NaDES using the lignin recovered from biomass pretreatment as hydrogen bond donor was prepared, thus paving the way for a “closed-loop” biorefinery process.
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17
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Wang YY, Meng X, Pu Y, J. Ragauskas A. Recent Advances in the Application of Functionalized Lignin in Value-Added Polymeric Materials. Polymers (Basel) 2020; 12:E2277. [PMID: 33023014 PMCID: PMC7600109 DOI: 10.3390/polym12102277] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 09/30/2020] [Accepted: 09/30/2020] [Indexed: 02/02/2023] Open
Abstract
The quest for converting lignin into high-value products has been continuously pursued in the past few decades. In its native form, lignin is a group of heterogeneous polymers comprised of phenylpropanoids. The major commercial lignin streams, including Kraft lignin, lignosulfonates, soda lignin and organosolv lignin, are produced from industrial processes including the paper and pulping industry and emerging lignocellulosic biorefineries. Although lignin has been viewed as a low-cost and renewable feedstock to replace petroleum-based materials, its utilization in polymeric materials has been suppressed due to the low reactivity and inherent physicochemical properties of lignin. Hence, various lignin modification strategies have been developed to overcome these problems. Herein, we review recent progress made in the utilization of functionalized lignins in commodity polymers including thermoset resins, blends/composites, grafted functionalized copolymers and carbon fiber precursors. In the synthesis of thermoset resins such as polyurethane, phenol-formaldehyde and epoxy, they are covalently incorporated into the polymer matrix, and the discussion is focused on chemical modifications improving the reactivity of technical lignins. In blends/composites, functionalization of technical lignins is based upon tuning the intermolecular forces between polymer components. In addition, grafted functional polymers have expanded the utilization of lignin-based copolymers to biomedical materials and value-added additives. Different modification approaches have also been applied to facilitate the application of lignin as carbon fiber precursors, heavy metal adsorbents and nanoparticles. These emerging fields will create new opportunities in cost-effectively integrating the lignin valorization into lignocellulosic biorefineries.
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Affiliation(s)
- Yun-Yan Wang
- Center for Renewable Carbon, Department of Forestry, Wildlife and Fisheries, University of Tennessee Institute of Agriculture, Knoxville, TN 37996, USA;
| | - Xianzhi Meng
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA;
| | - Yunqiao Pu
- Joint Institute for Biological Science, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;
- The Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Arthur J. Ragauskas
- Center for Renewable Carbon, Department of Forestry, Wildlife and Fisheries, University of Tennessee Institute of Agriculture, Knoxville, TN 37996, USA;
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, USA;
- Joint Institute for Biological Science, Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;
- The Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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18
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Shang F, Yu H, Chu Q, Yang H, Wang P, Cui H, Wang M. Novel γ‐Al
2
O
3
Supported Low Concentrated Pd Nanoalloy Catalyst for Improved Hydrogenation Ability of 2‐Methylfuran. ChemistrySelect 2020. [DOI: 10.1002/slct.202001145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fangfang Shang
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255000 P. R. China
| | - Haoxuan Yu
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255000 P. R. China
| | - Qingyan Chu
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255000 P. R. China
| | - Haiyu Yang
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255000 P. R. China
| | - Ping Wang
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255000 P. R. China
| | - Hongyou Cui
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255000 P. R. China
| | - Ming Wang
- School of Chemistry and Chemical EngineeringShandong University of Technology Zibo 255000 P. R. China
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19
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Thoresen PP, Matsakas L, Rova U, Christakopoulos P. Recent advances in organosolv fractionation: Towards biomass fractionation technology of the future. BIORESOURCE TECHNOLOGY 2020; 306:123189. [PMID: 32220471 DOI: 10.1016/j.biortech.2020.123189] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 05/26/2023]
Abstract
Organosolv treatment is among the most promising strategies for valorising lignocellulosic biomass and could facilitate the transition towards enhanced utilization of renewable feedstocks. However, issues such as inefficient solvent recycle and fractionation has to be overcome. The present review aims to address these issues and discuss the role of the components present during organosolv treatment and their influence on the overall process. Thus, the review focuses not only on how the choice of solvent and catalyst affects lignocellulosic fractionation, but also on how the choice of treatment liquor influences the possibility for solvent recycling and product isolation. Several organic solvents have been investigated in combination with water and acid/base catalysts; however, the lack of a holistic approach often compromises the performance of the different operational units. Thus, an economically viable organosolv process should optimize biomass fractionation, product isolation, and solvent recycling.
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Affiliation(s)
- Petter Paulsen Thoresen
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 971-87, Sweden
| | - Leonidas Matsakas
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 971-87, Sweden.
| | - Ulrika Rova
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 971-87, Sweden
| | - Paul Christakopoulos
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, 971-87, Sweden.
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20
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21
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Yoo CG, Meng X, Pu Y, Ragauskas AJ. The critical role of lignin in lignocellulosic biomass conversion and recent pretreatment strategies: A comprehensive review. BIORESOURCE TECHNOLOGY 2020; 301:122784. [PMID: 31980318 DOI: 10.1016/j.biortech.2020.122784] [Citation(s) in RCA: 200] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 05/19/2023]
Abstract
Heterogeneity and rigidity of lignocellulose causing resistance to its deconstruction have provided technical and economic challenges in the current biomass conversion processes. Lignin has been considered as a crucial recalcitrance component in biomass utilization. An in-depth understanding of lignin properties and their influences on biomass conversion can provide clues to improve biomass utilization. Also, utilization of lignin can significantly increase the economic viability of biorefinery. Recent lignin-targeting pretreatments have aimed not only to overcome recalcitrance for biomass conversion but also to selectively fractionate lignin for lignin valorization. Numerous studies have been conducted in biomass characteristics and conversion technologies, and the role of lignin is critical for lignin valorization and biomass pretreatment development. This review provides a comprehensive review of lignin-related biomass characteristics, the impact of lignin on the biological conversion of biomass, and recent lignin-targeting pretreatment strategies. The desired lignin properties in biorefinery and future pretreatment directions are also discussed.
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Affiliation(s)
- Chang Geun Yoo
- Department of Paper and Bioprocess Engineering, State University of New York - College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Xianzhi Meng
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA
| | - Yunqiao Pu
- Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Center for Bioenergy Innovation (CBI), Joint Institute for Biological Sciences, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA
| | - Arthur J Ragauskas
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996-2200, USA; Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Center for Bioenergy Innovation (CBI), Joint Institute for Biological Sciences, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Department of Forestry, Wildlife and Fisheries, Center of Renewable Carbon, The University of Tennessee, Institute of Agriculture, Knoxville, TN 37996-2200, USA.
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22
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Xue B, Yang Y, Zhu M, Sun Y, Li X. Lewis acid-catalyzed biphasic 2-methyltetrahydrofuran/H 2O pretreatment of lignocelluloses to enhance cellulose enzymatic hydrolysis and lignin valorization. BIORESOURCE TECHNOLOGY 2018; 270:55-61. [PMID: 30212774 DOI: 10.1016/j.biortech.2018.09.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/04/2018] [Accepted: 09/05/2018] [Indexed: 06/08/2023]
Abstract
Lewis acid-catalyzed pretreatment in a biphasic system consisting of bio-based solvent 2-methyltetrahydrofuran (2-MeTHF) and water for a highly integrated one-pot catalytic transformation of lignocelluloses have been achieved. The aim of this work was to study the effects of different Lewis acid catalysts and pretreatment temperatures on the structural characteristics of precipitated lignin and enzymatic hydrolysis of the pretreated substrates, as well as the quantitative analysis of precipitates, solid residues, soluble carbohydrates and inhibitors. After the AlCl3-catalyzed biphasic 2-MeTHF/H2O pretreatment at 180 °C, its maximum cellulose conversion rate was enhanced by 7.4-fold as compared to the raw material. The precipitated lignin exhibited the representative structure, relatively low molecular weight and high purity for preparing value-added aromatic chemicals or renewable polymers. Overall, AlCl3-catalyzed biphasic 2-MeTHF/H2O pretreatment may offer a promising approach for enhancing enzymatic hydrolysis and obtaining valorized lignin by-product.
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Affiliation(s)
- Bailiang Xue
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China.
| | - Yang Yang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China
| | - Mingqiang Zhu
- College of Mechanical and Electronic Engineering Northwest Agriculture & Forestry University, Yangling 712100, Shaanxi, China
| | - Yongchang Sun
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Chang'an University, Xi'an, China
| | - Xinping Li
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, Shaanxi, China
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23
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Alternatives for Chemical and Biochemical Lignin Valorization: Hot Topics from a Bibliometric Analysis of the Research Published During the 2000–2016 Period. Processes (Basel) 2018. [DOI: 10.3390/pr6080098] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A complete bibliometric analysis of the Scopus database was performed to identify the research trends related to lignin valorization from 2000 to 2016. The results from this analysis revealed an exponentially increasing number of publications and a high relevance of interdisciplinary collaboration. The simultaneous valorization of the three main components of lignocellulosic biomass (cellulose, hemicellulose, and lignin) has been revealed as a key aspect and optimal pretreatment is required for the subsequent lignin valorization. Research covers the determination of the lignin structure, isolation, and characterization; depolymerization by thermal and thermochemical methods; chemical, biochemical and biological conversion of depolymerized lignin; and lignin applications. Most methods for lignin depolymerization are focused on the selective cleavage of the β-O-4 linkage. Although many depolymerization methods have been developed, depolymerization with sodium hydroxide is the dominant process at industrial scale. Oxidative conversion of lignin is the most used method for the chemical lignin upgrading. Lignin uses can be classified according to its structure into lignin-derived aromatic compounds, lignin-derived carbon materials and lignin-derived polymeric materials. There are many advances in all approaches, but lignin-derived polymeric materials appear as a promising option.
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24
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Guo H, Chang Y, Lee DJ. Enzymatic saccharification of lignocellulosic biorefinery: Research focuses. BIORESOURCE TECHNOLOGY 2018; 252:198-215. [PMID: 29329774 DOI: 10.1016/j.biortech.2017.12.062] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 12/19/2017] [Accepted: 12/20/2017] [Indexed: 06/07/2023]
Abstract
To realize lignocellulosic biorefinery is of global interest, with enzymatic saccharification presenting an essential stage to convert polymeric sugars to mono-sugars for fermentation use. This mini-review summarizes qualitatively the research focuses discussed the review articles presented in the past 22 months and other relevant papers. The research focuses on pretreatment with improved efficiency, enhanced enzyme production with high yields and high extreme tolerance, feasible combined saccharification and fermentation processes, detailed mechanisms corresponding to the enzymatic saccharification in lignocellulosic biorefinery, and the costs are discussed.
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Affiliation(s)
- Hongliang Guo
- College of Food Engineering, Harbin University of Commerce, Harbin 150076, China
| | - Yingju Chang
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
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