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Li ZC, Su MY, Yuan XY, Lv HQ, Feng R, Wu LJ, Gao XP, An YX, Li ZW, Li MY, Zhao GM, Wang XP. Green fabrication of modified lignin/zeolite/chitosan-based composite membranes for preservation of perishable foods. Food Chem 2024; 460:140713. [PMID: 39116775 DOI: 10.1016/j.foodchem.2024.140713] [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: 05/10/2024] [Revised: 07/12/2024] [Accepted: 07/28/2024] [Indexed: 08/10/2024]
Abstract
Chitosan, as a kind of naturally occurring green and degradable material for the preservation of perishable foods, was investigated in this study with the objective of enhancing its preservation performances. Herein, lignin was modified using the solvent fractionation method (modified lignin, ML, including ML1-ML3), while natural clinoptilolite zeolite was modified using the alkali modification method (modified clinoptilolite zeolite, MCZ, including MCZ1-MCZ5). After optimizing the conditions, it was discovered that incorporating both ML3 and MCZ3 into pure chitosan-based membranes might be conducive to fabricate chitosan-based composite membranes for the preservation of perishable foods. As-prepared composite membranes possessed better visible light transmittance, antioxidant activity, and carbon dioxide/oxygen selectivity, resulting in improved preservation effects on the model perishable foods such as bananas, cherry tomatoes, and cheeses. These findings might indicate promising applications for chitosan-based composite membranes with modified lignin and zeolite in the field of eco-friendly degradable materials for the preservation of perishable foods.
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Affiliation(s)
- Zhan-Chao Li
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Meng-Yao Su
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Xiao-Yu Yuan
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Hai-Qing Lv
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Rui Feng
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Li-Jie Wu
- College of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, People's Republic of China
| | - Xiao-Ping Gao
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Yan-Xia An
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Zhan-Wei Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, People's Republic of China.
| | - Miao-Yun Li
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Gai-Ming Zhao
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Xiao-Peng Wang
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China; Henan Key Laboratory of Meat Processing and Quality Safety Control, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China.
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2
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Chen M, Li Y, Liu H, Zhang D, Guo Y, Shi QS, Xie X. Lignin hydrogenolysis: Tuning the reaction by lignin chemistry. Int J Biol Macromol 2024; 279:135169. [PMID: 39218172 DOI: 10.1016/j.ijbiomac.2024.135169] [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: 05/29/2024] [Revised: 08/22/2024] [Accepted: 08/27/2024] [Indexed: 09/04/2024]
Abstract
Replacing fossil resource with biomass is one of the promising approaches to reduce our carbon footprint. Lignin is one of the three major components of lignocellulosic biomass, accounting for 10-35 wt% of dried weight of the biomass. Hydrogenolytic depolymerization of lignin is attracting increasing attention because of its capacity of utilizing lignin in its uncondensed form and compatibility with the biomass fractionation processes. Lignin is a natural aromatic polymer composed of a variety of monolignols associated with a series of lignin linkage motifs. Hydrogenolysis cleaves various ether bonds in lignin and releases phenolic monomers which can be further upgraded into valuable products, i.e., drugs, terephthalic acid, phenol. This review provides an overview of the state-of-the-art advances of the reagent (lignin), products (hydrol lignin), mass balance, and mechanism of the lignin hydrogenolysis reaction. The chemical structure of lignin is reviewed associated with the free radical coupling of monolignols and the chemical reactions of lignin upon isolation processes. The reactions of lignin linkages upon hydrogenolysis are discussed. The components of hydrol lignin and the selectivity production of phenolic monomers are reviewed. Future challenges on hydrogenolysis of lignin are proposed. This article provides an overview of lignin hydrogenolysis reaction which shows light on the generation of optimized lignin ready for hydrogenolytic depolymerization.
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Affiliation(s)
- Mingjie Chen
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, 100 Central Xianlie Road, Guangzhou, 510070, China; Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China; Guangdong Dimei New Materials Technology Co. Ltd., 100 Central Xianlie Road, Guangzhou, 510070, China
| | - Yan Li
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, 100 Central Xianlie Road, Guangzhou, 510070, China; Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Huiming Liu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, 100 Central Xianlie Road, Guangzhou, 510070, China
| | - Dandan Zhang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, 100 Central Xianlie Road, Guangzhou, 510070, China
| | - Yanzhu Guo
- Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials, Liaoning Collaborative Innovation Center for Lignocellulosic Biorefinery, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Qing-Shan Shi
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, 100 Central Xianlie Road, Guangzhou, 510070, China.
| | - Xiaobao Xie
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Institute of Microbiology, Guangdong Academy of Sciences, 100 Central Xianlie Road, Guangzhou, 510070, China.
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3
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Zheng S, Zhang Z, He S, Yang H, Atia H, Abdel-Mageed AM, Wohlrab S, Baráth E, Tin S, Heeres HJ, Deuss PJ, de Vries JG. Benzenoid Aromatics from Renewable Resources. Chem Rev 2024; 124:10701-10876. [PMID: 39288258 DOI: 10.1021/acs.chemrev.4c00087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
In this Review, all known chemical methods for the conversion of renewable resources into benzenoid aromatics are summarized. The raw materials that were taken into consideration are CO2; lignocellulose and its constituents cellulose, hemicellulose, and lignin; carbohydrates, mostly glucose, fructose, and xylose; chitin; fats and oils; terpenes; and materials that are easily obtained via fermentation, such as biogas, bioethanol, acetone, and many more. There are roughly two directions. One much used method is catalytic fast pyrolysis carried out at high temperatures (between 300 and 700 °C depending on the raw material), which leads to the formation of biochar; gases, such as CO, CO2, H2, and CH4; and an oil which is a mixture of hydrocarbons, mostly aromatics. The carbon selectivities of this method can be reasonably high when defined small molecules such as methanol or hexane are used but are rather low when highly oxygenated compounds such as lignocellulose are used. The other direction is largely based on the multistep conversion of platform chemicals obtained from lignocellulose, cellulose, or sugars and a limited number of fats and terpenes. Much research has focused on furan compounds such as furfural, 5-hydroxymethylfurfural, and 5-chloromethylfurfural. The conversion of lignocellulose to xylene via 5-chloromethylfurfural and dimethylfuran has led to the construction of two large-scale plants, one of which has been operational since 2023.
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Affiliation(s)
- Shasha Zheng
- Leibniz Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Zhenlei Zhang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering and Environment, China University of Petroleum (Beijing), 102249 Beijing, China
| | - Songbo He
- Joint International Research Laboratory of Circular Carbon, Nanjing Tech University, Nanjing 211816, PR China
| | - Huaizhou Yang
- Green Chemical Reaction Engineering, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Hanan Atia
- Leibniz Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Ali M Abdel-Mageed
- Leibniz Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Sebastian Wohlrab
- Leibniz Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Eszter Baráth
- Leibniz Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Sergey Tin
- Leibniz Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Hero J Heeres
- Green Chemical Reaction Engineering, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Peter J Deuss
- Green Chemical Reaction Engineering, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Johannes G de Vries
- Leibniz Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
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Vermeeren B, Van Praet S, Arts W, Narmon T, Zhang Y, Zhou C, Steenackers HP, Sels BF. From sugars to aliphatic amines: as sweet as it sounds? Production and applications of bio-based aliphatic amines. Chem Soc Rev 2024. [PMID: 39365265 DOI: 10.1039/d4cs00244j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2024]
Abstract
Aliphatic amines encompass a diverse group of amines that include alkylamines, alkyl polyamines, alkanolamines and aliphatic heterocyclic amines. Their structural diversity and distinctive characteristics position them as indispensable components across multiple industrial domains, ranging from chemistry and technology to agriculture and medicine. Currently, the industrial production of aliphatic amines is facing pressing sustainability, health and safety issues which all arise due to the strong dependency on fossil feedstock. Interestingly, these issues can be fundamentally resolved by shifting toward biomass as the feedstock. In this regard, cellulose and hemicellulose, the carbohydrate fraction of lignocellulose, emerge as promising feedstock for the production of aliphatic amines as they are available in abundance, safe to use and their aliphatic backbone is susceptible to chemical transformations. Consequently, the academic interest in bio-based aliphatic amines via the catalytic reductive amination of (hemi)cellulose-derived substrates has systematically increased over the past years. From an industrial perspective, however, the production of bio-based aliphatic amines will only be the middle part of a larger, ideally circular, value chain. This value chain additionally includes, as the first part, the refinery of the biomass feedstock to suitable substrates and, as the final part, the implementation of these aliphatic amines in various applications. Each part of the bio-based aliphatic amine value chain will be covered in this Review. Applying a holistic perspective enables one to acknowledge the requirements and limitations of each part and to efficiently spot and potentially bridge knowledge gaps between the different parts.
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Affiliation(s)
- Benjamin Vermeeren
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Belgium.
| | - Sofie Van Praet
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Belgium.
| | - Wouter Arts
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Belgium.
| | - Thomas Narmon
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Belgium.
| | - Yingtuan Zhang
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Belgium.
| | - Cheng Zhou
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Belgium.
| | | | - Bert F Sels
- Center for Sustainable Catalysis and Engineering (CSCE), KU Leuven, Belgium.
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Palumbo CT, Ouellette ET, Zhu J, Román-Leshkov Y, Stahl SS, Beckham GT. Accessing monomers from lignin through carbon-carbon bond cleavage. Nat Rev Chem 2024:10.1038/s41570-024-00652-9. [PMID: 39367248 DOI: 10.1038/s41570-024-00652-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2024] [Indexed: 10/06/2024]
Abstract
Lignin, the heterogeneous aromatic macromolecule found in the cell walls of vascular plants, is an abundant feedstock for the production of biochemicals and biofuels. Many valorization schemes rely on lignin depolymerization, with decades of research focused on accessing monomers through C-O bond cleavage, given the abundance of β-O-4 bonds in lignin and the large number of available C-O bond cleavage strategies. Monomer yields are, however, invariably lower than desired, owing to the presence of recalcitrant C-C bonds whose selective cleavage remains a major challenge in catalysis. In this Review, we highlight lignin C-C cleavage reactions, including those of linkages arising from biosynthesis (β-1, β-5, β-β and 5-5) and industrial processing (5-CH2-5 and α-5). We examine multiple approaches to C-C cleavage, including homogeneous and heterogeneous catalysis, photocatalysis and biocatalysis, to identify promising strategies for further research and provide guidelines for definitive measurements of lignin C-C bond cleavage.
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Affiliation(s)
- Chad T Palumbo
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Erik T Ouellette
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA
| | - Jie Zhu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yuriy Román-Leshkov
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Shannon S Stahl
- Department of Chemistry. Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI, USA.
| | - Gregg T Beckham
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO, USA.
- Center for Bioenergy Innovation, Oak Ridge, TN, USA.
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6
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Zhang H, Jiang P, Zhao G, Li L, Chen M, Mu L, Lu X, Zhu J. Facing the solid waste of cotton straw and plastic mulch film mixture in China: Centralized or decentralized pyrolysis facility? WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 187:22-30. [PMID: 38971024 DOI: 10.1016/j.wasman.2024.07.003] [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: 05/03/2024] [Revised: 06/12/2024] [Accepted: 07/02/2024] [Indexed: 07/08/2024]
Abstract
The widespread use of plastic mulch film (PMF) has led to significant environmental pollution, with PMF residues dispersed and mixed with straw and soil, posing challenges for recycling. Here, we proposed the mobile pyrolysis facility for the cotton straw and mulch film mixture (CMM) to mitigate the collection, storage, and transportation costs, while the application of co-pyrolysis technology for CMM conversion could improve the added value of products. Additionally, centralized combustion power generation and centralized pyrolysis systems were also established to evaluate and compare their sustainability from economic and environmental perspectives. Results showed that mobile pyrolysis has better economic performance than the centralized scenarios, due to its high internal rate of return (31 %) and significant net present value (29.21 M USD). Meanwhile, the mobile pyrolysis facility achieved a GWP of -1.298 kgCO2-eq/kg, reducing emissions by 70.79 % and 38.82 % compared to the two centralized scenarios. In conclusion, mobile pyrolysis technology provides a promising solution for PMF residue recycling because of its economically competitive approach with a lower carbon footprint.
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Affiliation(s)
- Hao Zhang
- State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Peng Jiang
- State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Guanhan Zhao
- State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Lin Li
- State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Minjiao Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211816, China
| | - Liwen Mu
- State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Xiaohua Lu
- State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Jiahua Zhu
- State Key Laboratory of Materials-oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
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Feng S, Nguyen PTT, Ma X, Yan N. Photorefinery of Biomass and Plastics to Renewable Chemicals using Heterogeneous Catalysts. Angew Chem Int Ed Engl 2024; 63:e202408504. [PMID: 38884612 DOI: 10.1002/anie.202408504] [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] [Received: 05/05/2024] [Revised: 06/04/2024] [Accepted: 06/17/2024] [Indexed: 06/18/2024]
Abstract
The photocatalytic conversion of biomass and plastic waste provides opportunities for sustainable fuel and chemical production. Heterogeneous photocatalysts, typically composed of semiconductors with distinctive redox properties in their conduction band (CB) and valence band (VB), facilitate both the oxidative and reductive valorization of organic feedstocks. This article provides a comprehensive overview of recent advancements in the photorefinery of biomass and plastics from the perspective of the redox properties of photocatalysts. We explore the roles of the VB and CB in enhancing the value-added conversion of biomass and plastics via various pathways. Our aim is to bridge the gap between photocatalytic mechanisms and renewable carbon feedstock valorization, inspiring further development in photocatalytic refinery of biomass and plastics.
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Affiliation(s)
- Shixiang Feng
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Phuc T T Nguyen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Xinbin Ma
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- Centre for Hydrogen Innovations, National University of Singapore, Singapore, 117580, Singapore
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8
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Huang Z, Yu Z, Guo Z, Shi P, Hu J, Deng H, Huang Z. Selective Cleavage of C β-O-4 Bond for Lignin Depolymerization via Paired-Electrolysis in an Undivided Cell. Angew Chem Int Ed Engl 2024; 63:e202407750. [PMID: 38899860 DOI: 10.1002/anie.202407750] [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: 04/23/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 06/21/2024]
Abstract
The cleavage of C-O bonds is one of the most promising strategies for lignin-to-chemicals conversion, which has attracted considerable attention in recent years. However, current catalytic system capable of selectively breaking C-O bonds in lignin often requires a precious metal catalyst and/or harsh conditions such as high-pressure H2 and elevated temperatures. Herein, we report a novel protocol of paired electrolysis to effectively cleave the Cβ-O-4 bond of lignin model compounds and real lignin at room temperature and ambient pressure. For the first time, "cathodic hydrogenolysis of Cβ-O-4 linkage" and "anodic C-H/N-H cross-coupling reaction" are paired in an undivided cell, thus the cleavage of C-O bonds and the synthesis of valuable triarylamine derivatives could be simultaneously achieved in an energy-effective manner. This protocol features mild reaction conditions, high atom economy, remarkable yield with excellent chemoselectivity, and feasibility for large-scale synthesis. Mechanistic studies indicate that indirect H* (chemical absorbed hydrogen) reduction instead of direct electron transfer might be the pathway for the cathodic hydrogenolysis of Cβ-O-4 linkage.
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Affiliation(s)
- Zhenghui Huang
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, 430079, Wuhan, P. R. China
| | - Zihan Yu
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, 530004, Nanning, P. R. China
| | - Zhaogang Guo
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, P. R. China
| | - Pingsen Shi
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, P. R. China
| | - Jingcheng Hu
- The Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, 430072, Wuhan, P. R. China
| | - Hongbing Deng
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, 430079, Wuhan, P. R. China
| | - Zhiliang Huang
- Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, School of Resource and Environmental Sciences, Wuhan University, 430079, Wuhan, P. R. China
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Sun Z, Wang K, Lin Q, Guo W, Chen M, Chen C, Zhang C, Fei J, Zhu Y, Li J, Liu Y, He H, Cao Y. Value-Added Upcycling of PET to 1,4-Cyclohexanedimethanol by a Hydrogenation/Hydrogenolysis Relay Catalysis. Angew Chem Int Ed Engl 2024; 63:e202408561. [PMID: 38923654 DOI: 10.1002/anie.202408561] [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] [Received: 05/06/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 06/28/2024]
Abstract
We present an innovative process for directly transforming poly(ethylene terephthalate) (PET), a polymer extensively used in food and beverage packaging, into trans-isomer-enriched 1,4-cyclohexanedimethanol (CHDM), a key ingredient in advanced specialty polymers. Our approach leverages a dual-catalyst system featuring palladium on reduced graphene oxide (Pd/r-GO) and oxalate-gel-derived copper-zinc oxide (og-CuZn), utilizing hydrogenation/hydrogenolysis relay catalysis. This method efficiently transforms PET into polyethylene-1,4-cyclohexanedicarboxylate (PECHD), which is then converted into CHDM with an impressive overall yield of 95 % in a two-stage process. Our process effectively handles various post-consumer PET plastics, converting them into CHDM with yields between 78 % and 89 % across different substrates. Additionally, we demonstrate the applicability and scalability of this approach through a temperature-programmed three-stage relay process on a 10-gram scale, which results in purified CHDM with an isolated yield of 87 % and a notably higher trans/cis ratio of up to 4.09/1, far exceeding that of commercially available CHDM. This research not only provides a viable route for repurposing PET waste but also enhances the control of selectivity patterns in multistage relay catalysis.
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Affiliation(s)
- Zehui Sun
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Kaizhi Wang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Qiang Lin
- SINOPEC, Beijing Research Institute of Chemical Industry Co. Ltd. Yanshan Branch
| | - Wendi Guo
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Mugeng Chen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Chen Chen
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Chi Zhang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Jiachen Fei
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Yifeng Zhu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Jinbing Li
- SINOPEC, Beijing Research Institute of Chemical Industry Co. Ltd. Yanshan Branch
| | - Yongmei Liu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Heyong He
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Yong Cao
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai, 200438, China
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10
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Chen C, Lv M, Hu H, Huai L, Zhu B, Fan S, Wang Q, Zhang J. 5-Hydroxymethylfurfural and its Downstream Chemicals: A Review of Catalytic Routes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311464. [PMID: 38808666 DOI: 10.1002/adma.202311464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 05/21/2024] [Indexed: 05/30/2024]
Abstract
Biomass assumes an increasingly vital role in the realm of renewable energy and sustainable development due to its abundant availability, renewability, and minimal environmental impact. Within this context, 5-hydroxymethylfurfural (HMF), derived from sugar dehydration, stands out as a critical bio-derived product. It serves as a pivotal multifunctional platform compound, integral in synthesizing various vital chemicals, including furan-based polymers, fine chemicals, and biofuels. The high reactivity of HMF, attributed to its highly active aldehyde, hydroxyl, and furan ring, underscores the challenge of selectively regulating its conversion to obtain the desired products. This review highlights the research progress on efficient catalytic systems for HMF synthesis, oxidation, reduction, and etherification. Additionally, it outlines the techno-economic analysis (TEA) and prospective research directions for the production of furan-based chemicals. Despite significant progress in catalysis research, and certain process routes demonstrating substantial economics, with key indicators surpassing petroleum-based products, a gap persists between fundamental research and large-scale industrialization. This is due to the lack of comprehensive engineering research on bio-based chemicals, making the commercialization process a distant goal. These findings provide valuable insights for further development of this field.
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Affiliation(s)
- Chunlin Chen
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Mingxin Lv
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Hualei Hu
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Liyuan Huai
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Bin Zhu
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Shilin Fan
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiuge Wang
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian Zhang
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, 315201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
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11
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Wang W, Li S, Qiang Q, Wu K, Pan X, Su W, Cai J, Shen Z, Yang Y, Li C, Zhang T. Catalytic Refining Lignin-Derived Monomers: Seesaw Effect between Nanoparticle and Single-Atom Pt. Angew Chem Int Ed Engl 2024; 63:e202404683. [PMID: 38771068 DOI: 10.1002/anie.202404683] [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] [Received: 03/07/2024] [Revised: 04/28/2024] [Accepted: 05/21/2024] [Indexed: 05/22/2024]
Abstract
Pt automatically adsorbed on oxygen vacancy of TiO2 via an in situ interfacial redox reaction, resulting in atomically dispersion of Pt on TiO2. In the upgrading of lignin-derived 4-propylguaiacol, single-atom catalyst (SAC) Pt/TiO2-H achieved a conversion of 96.9 % and a demethoxylation selectivity of 93.3 % under 3 MPa H2 at 250 °C for 3 h, markedly different from the performance of nanoparticle counterpart that gave deep deoxygenation selectivity over 99.0 %. The high demethoxylation activity of SAC Pt/TiO2-H is mainly attributed to its weak hydrogen spillover capacity that suppressed the benzene ring hydrogenation and the deep deoxygenation. Additionally, SAC Pt/TiO2-H reduced the energy barrier of CAr-OCH3 bond cleavage and accordingly lowered the Gibbs free energy of the demethoxylation reaction. This facile method could fabricate single-atom Au, Pd, Ir, and Ru supported on TiO2-H, demonstrating the generality of this strategy for the establishment of a library of SACs. Moreover, SAC exhibited versatile capacity in demethoxylation of different lignin-derived monomers and high stability. This study showcases the superiority of atomically dispersed metal catalysts for selective demethoxylation reactions and proposes a renewable alternative to fossil-based 4-alkylphenols through upgrading of lignin-derived monomers.
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Affiliation(s)
- Weiyan Wang
- School of Chemical Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P.R. China
| | - Shangjian Li
- School of Chemical Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P.R. China
| | - Qian Qiang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R.China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kui Wu
- School of Chemical Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P.R. China
| | - Xiaoli Pan
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R.China
| | - Wentao Su
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R.China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junyang Cai
- School of Chemical Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P.R. China
| | - Zhigang Shen
- School of Chemical Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P.R. China
| | - Yunquan Yang
- School of Chemical Engineering, Xiangtan University, Xiangtan, Hunan, 411105, P.R. China
| | - Changzhi Li
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R.China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tao Zhang
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R.China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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12
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Shang Z, Chen K, Han T, Bu F, Sun S, Zhu N, Man D, Yang K, Yuan S, Fu H. Natural Foraging Selection and Gut Microecology of Two Subterranean Rodents from the Eurasian Steppe in China. Animals (Basel) 2024; 14:2334. [PMID: 39199868 PMCID: PMC11350848 DOI: 10.3390/ani14162334] [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] [Received: 06/25/2024] [Revised: 07/30/2024] [Accepted: 08/08/2024] [Indexed: 09/01/2024] Open
Abstract
As the most abundant group of mammals, rodents possess a very rich ecotype, which makes them ideal for studying the relationship between diet and host gut microecology. Zokors are specialized herbivorous rodents adapted to living underground. Unlike more generalized herbivorous rodents, they feed on the underground parts of grassland plants. There are two species of the genus Myospalax in the Eurasian steppes in China: one is Myospalax psilurus, which inhabits meadow grasslands and forest edge areas, and the other is M. aspalax, which inhabits typical grassland areas. How are the dietary choices of the two species adapted to long-term subterranean life, and what is the relationship of this diet with gut microbes? Are there unique indicator genera for their gut microbial communities? Relevant factors, such as the ability of both species to degrade cellulose, are not yet clear. In this study, we analyzed the gut bacterial communities and diet compositions of two species of zokors using 16S amplicon technology combined with macro-barcoding technology. We found that the diversity of gut microbial bacterial communities in M. psilurus was significantly higher than that in M. aspalax, and that the two species of zokors possessed different gut bacterial indicator genera. Differences in the feeding habits of the two species of zokors stem from food composition rather than diversity. Based on the results of Mantel analyses, the gut bacterial community of M. aspalax showed a significant positive correlation with the creeping-rooted type food, and there was a complementary relationship between the axis root-type-food- and the rhizome-type-food-dominated (containing bulb types and tuberous root types) food groups. Functional prediction based on KEGG found that M. psilurus possessed a stronger degradation ability in the same cellulose degradation pathway. Neutral modeling results show that the gut flora of the M. psilurus has a wider ecological niche compared to that of the M. aspalax. This provides a new perspective for understanding how rodents living underground in grassland areas respond to changes in food conditions.
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Affiliation(s)
- Zhenghaoni Shang
- College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China; (Z.S.); (K.C.); (T.H.); (F.B.); (S.S.); (N.Z.)
- Key Laboratory of Grassland Rodent Ecology and Pest Controlled, Hohhot 010011, China
- Key Laboratory of Grassland Resources, Ministry of Education, Hohhot 010011, China
| | - Kai Chen
- College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China; (Z.S.); (K.C.); (T.H.); (F.B.); (S.S.); (N.Z.)
- Key Laboratory of Grassland Rodent Ecology and Pest Controlled, Hohhot 010011, China
- Key Laboratory of Grassland Resources, Ministry of Education, Hohhot 010011, China
| | - Tingting Han
- College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China; (Z.S.); (K.C.); (T.H.); (F.B.); (S.S.); (N.Z.)
- Key Laboratory of Grassland Rodent Ecology and Pest Controlled, Hohhot 010011, China
- Key Laboratory of Grassland Resources, Ministry of Education, Hohhot 010011, China
| | - Fan Bu
- College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China; (Z.S.); (K.C.); (T.H.); (F.B.); (S.S.); (N.Z.)
- Key Laboratory of Grassland Rodent Ecology and Pest Controlled, Hohhot 010011, China
- Key Laboratory of Grassland Resources, Ministry of Education, Hohhot 010011, China
| | - Shanshan Sun
- College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China; (Z.S.); (K.C.); (T.H.); (F.B.); (S.S.); (N.Z.)
- Key Laboratory of Grassland Rodent Ecology and Pest Controlled, Hohhot 010011, China
- Key Laboratory of Grassland Resources, Ministry of Education, Hohhot 010011, China
| | - Na Zhu
- College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China; (Z.S.); (K.C.); (T.H.); (F.B.); (S.S.); (N.Z.)
- Key Laboratory of Grassland Rodent Ecology and Pest Controlled, Hohhot 010011, China
- Key Laboratory of Grassland Resources, Ministry of Education, Hohhot 010011, China
| | - Duhu Man
- College of Agriculture, Hulunbuir University, Hulunbuir 021000, China;
| | - Ke Yang
- Alxa League Meteorological Bureau, Alxa 750300, China;
| | - Shuai Yuan
- College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China; (Z.S.); (K.C.); (T.H.); (F.B.); (S.S.); (N.Z.)
- Key Laboratory of Grassland Rodent Ecology and Pest Controlled, Hohhot 010011, China
- Key Laboratory of Grassland Resources, Ministry of Education, Hohhot 010011, China
| | - Heping Fu
- College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot 010011, China; (Z.S.); (K.C.); (T.H.); (F.B.); (S.S.); (N.Z.)
- Key Laboratory of Grassland Rodent Ecology and Pest Controlled, Hohhot 010011, China
- Key Laboratory of Grassland Resources, Ministry of Education, Hohhot 010011, China
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13
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Jia S, Wang R, Jin X, Liu H, Wu L, Song X, Zhang L, Ma X, Tan X, Sun X, Han B. In situ Generation of Cyclohexanone Drives Electrocatalytic Upgrading of Phenol to Nylon-6 Precursor. Angew Chem Int Ed Engl 2024:e202410972. [PMID: 39115031 DOI: 10.1002/anie.202410972] [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] [Received: 06/11/2024] [Indexed: 10/11/2024]
Abstract
Coupling in situ generated intermediates with other substrates/intermediates is a viable approach for diversifying product outcomes of catalytic reactions involving two or multiple reactants. Cyclohexanone oxime is a key precursor for caprolactam synthesis (the monomer of Nylon-6), yet its current production uses unsustainable carbon sources, noble metal catalysts, and harsh conditions. Herein, we report the first work to synthesize cyclohexanone oxime through electroreduction of phenol and hydroxylamine. The Faradaic efficiency reached 69.1 % over Cu catalyst, accompanied by a corresponding cyclohexanone oxime formation rate of 82.0 g h-1 gcat -1. In addition, the conversion of phenol was up to 97.5 %. In situ characterizations, control experiments, and theoretical calculations suggested the importance of balanced activation of water, phenol, and hydroxylamine substrates on the optimal metallic Cu catalyst for achieving high-performance cyclohexanone oxime synthesis. Besides, a tandem catalytic route for the upgrading of lignin to caprolactam has been successfully developed through the integration of thermal catalysis, electrocatalysis, and Beckmann rearrangement, which achieved the synthesis of 0.40 g of caprolactam from 4.0 g of lignin raw material.
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Affiliation(s)
- Shunhan Jia
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ruhan Wang
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiangyuan Jin
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hanle Liu
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Limin Wu
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinning Song
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Libing Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaodong Ma
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xingxing Tan
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xiaofu Sun
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
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14
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Huo J, Wang Z, Lauri P, Medrano-García JD, Guillén-Gosálbez G, Hellweg S. Region-Specific Sourcing of Lignocellulose Residues as Renewable Feedstocks for a Net-Zero Chemical Industry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:13748-13759. [PMID: 39049709 PMCID: PMC11308523 DOI: 10.1021/acs.est.4c03005] [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: 03/28/2024] [Revised: 07/16/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
Biobased chemicals, crucial for the net-zero chemical industry, rely on lignocellulose residues as a major feedstock. However, its availability and environmental impacts vary greatly across regions. By 2050, we estimate that 3.0-5.2 Gt of these residues will be available from the global forest and agricultural sectors, with key contributions from Brazil, China, India, and the United States. This supply satisfies the growing global feedstock demands for plastics when used efficiently. Forest residues have 84% lower climate change impacts than agricultural residues on average globally but double the land-use-related biodiversity loss. Biobased plastics may reduce climate change impacts relative to fossil-based alternatives but are insufficient to fulfill net-zero targets. In addition, they pose greater challenges in terms of biodiversity loss and water stress. Avoiding feedstock sourcing from biodiversity-rich areas could halve lignocellulose residues-related biodiversity loss without significantly compromising availability. Improvements in region-specific feedstock sourcing, agricultural management and biomass utilization technologies are warranted for transitioning toward a sustainable chemical industry.
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Affiliation(s)
- Jing Huo
- Chair
of Ecological Systems Design, Institute of Environmental Engineering, ETH Zürich, 8093 Zürich, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, ETH Zürich, 8093 Zürich, Switzerland
| | - Zhanyun Wang
- National
Centre of Competence in Research (NCCR) Catalysis, ETH Zürich, 8093 Zürich, Switzerland
- Empa-Swiss
Federal Laboratories for Materials Science and Technology, Technology and Society Laboratory, 9014 St. Gallen, Switzerland
| | - Pekka Lauri
- International
Institute for Applied Systems Analysis (IIASA), A-2361 Laxenburg, Austria
| | - Juan D. Medrano-García
- National
Centre of Competence in Research (NCCR) Catalysis, ETH Zürich, 8093 Zürich, Switzerland
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Gonzalo Guillén-Gosálbez
- National
Centre of Competence in Research (NCCR) Catalysis, ETH Zürich, 8093 Zürich, Switzerland
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Stefanie Hellweg
- Chair
of Ecological Systems Design, Institute of Environmental Engineering, ETH Zürich, 8093 Zürich, Switzerland
- National
Centre of Competence in Research (NCCR) Catalysis, ETH Zürich, 8093 Zürich, Switzerland
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15
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Liu Y, Gao L, Chang G, Zhou W. Enhancing reductive conversion of levulinic acid and levulinates to γ-valerolactone: Role of oxygen vacancy in MnOx catalysts. BIORESOURCE TECHNOLOGY 2024; 406:131001. [PMID: 38897549 DOI: 10.1016/j.biortech.2024.131001] [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: 05/16/2024] [Revised: 06/11/2024] [Accepted: 06/14/2024] [Indexed: 06/21/2024]
Abstract
Oxygen vacancies (Ov) in metal oxides play a crucial role in modifying the electronic and acidic properties of catalysts, thereby influencing their catalytic activity. This study explores the impact of Ov in MnOx catalysts on their acidic and catalytic properties for the Meerwein-Ponndorf-Verley reduction of levulinic acid (LA) and levulinate to γ-valerolactone (GVL). Various characterization techniques demonstrate that surface Ov significantly modulate the acidic properties of MnOx catalysts, positively correlating with Lewis/Brønsted acid ratio and GVL yield. In situ DRIFTS and DFT calculations further unveil the reaction mechanism, revealing that Ov facilitate the activation and dehydrogenation of isopropanol and subsequent hydrogen transfer and hydrogenation of LA, leading to enhanced GVL production. These insights underscore the pivotal role of Ov in MnOx catalysts for the efficient conversion of LA to GVL, highlighting their importance in improving catalytic performance.
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Affiliation(s)
- Yong Liu
- School of Resources & Environment and Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330047, China; Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing, 210096, China.
| | - Lingling Gao
- School of Resources & Environment and Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330047, China
| | - Guozhang Chang
- Institute of Yellow River Delta Earth Surface Process and Ecological Integrity, College of Energy Storage Technology, Shandong University of Science and Technology, Qingdao 266590, China
| | - Wenguang Zhou
- School of Resources & Environment and Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang 330047, China.
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16
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Mobredi K, Miranda-Valdez IY, Mäkinen T, Koivisto J, Alava MJ. A simple approach to produce hydrophobic biobased coatings using methylcellulose and organosolv lignin. SOFT MATTER 2024; 20:5607-5615. [PMID: 38976302 DOI: 10.1039/d4sm00427b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/09/2024]
Abstract
Substituting plastics with circular and sustainable alternatives has increasingly become a priority. Protective coatings, crucial components in numerous industries, are now in demand for biodegradable options to replace their plastic-based counterparts. Being one of nature's most abundant components, lignin remains underutilized, and this study focuses on investigating its potential for the production of biobased coatings. The method used here involved formulating coating suspensions by mixing methylcellulose and organosolv lignin powders and adding water to the mixture. Glass wafers were coated with the formulated suspensions using spin-coating. The morphology of the coated surfaces was assessed using optical and scanning electron microscopy. In addition, the wettability of the surfaces was examined through water contact angle experiments, and a numerical model was introduced to predict the water contact angle evolution over time. The results revealed that the sample coated with a 2.5 wt% lignin suspension exhibited the highest initial contact angle (114°), with a decreasing trend as the lignin fraction increases. Moreover, coatings with 3.5 wt% lignin and above exhibited lower surface coverage due to lignin particle aggregation and surface defects. By approximating the water droplet on the surface as a spherical cap, the introduced numerical model successfully predicted the time-dependent evolution of the water contact angle by showing strong alignment with experimental results. Taken altogether, we have showcased here a method for modifying coating properties-in a practical sense from water-absorbent to splash-proof-using readily available forest-based materials. This advancement is paving the way for sustainable protective packaging, aiming to replace styrofoam in the electronics and food industries.
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Affiliation(s)
- Kourosh Mobredi
- Complex Systems and Materials, Department of Applied Physics, Aalto University, P.O. Box 15600, FI-00076 Aalto, Espoo, Finland.
| | - Isaac Y Miranda-Valdez
- Complex Systems and Materials, Department of Applied Physics, Aalto University, P.O. Box 15600, FI-00076 Aalto, Espoo, Finland.
| | - Tero Mäkinen
- Complex Systems and Materials, Department of Applied Physics, Aalto University, P.O. Box 15600, FI-00076 Aalto, Espoo, Finland.
| | - Juha Koivisto
- Complex Systems and Materials, Department of Applied Physics, Aalto University, P.O. Box 15600, FI-00076 Aalto, Espoo, Finland.
| | - Mikko J Alava
- Complex Systems and Materials, Department of Applied Physics, Aalto University, P.O. Box 15600, FI-00076 Aalto, Espoo, Finland.
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17
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Subbotina E, Souza LR, Zimmerman J, Anastas P. Room temperature catalytic upgrading of unpurified lignin depolymerization oil into bisphenols and butene-2. Nat Commun 2024; 15:5892. [PMID: 39003256 PMCID: PMC11246530 DOI: 10.1038/s41467-024-49812-x] [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] [Received: 01/07/2024] [Accepted: 06/19/2024] [Indexed: 07/15/2024] Open
Abstract
Lignin is the largest source of renewable aromatics on earth. Despite numerous techniques for lignin depolymerization into mixtures of valuable monomers, methods for their upgrading into final products are scarce. The state of the art upgrading methods generally rely on catalytic funneling, requiring high temperatures, catalyst loadings and hydrogen pressure, and lead to the loss of functionality and bio-based carbon content. Here an alternative approach is presented, whereby the target monomers are selectively converted in unpurified mixtures into easily separable final products under mild conditions. We use reductive catalytic fractionation of wood to convert lignin into iso-eugenol and propenyl syringol enriched oil followed by an olefin metathesis to yield bisphenols and butene-2, thus, valorizing all bio-based carbons. To further demonstrate the synthetic utility of the obtained bisphenols we converted them into polyesters with a high glass transition temperature (Tg = 140.3 °C) and thermal stability (Td50% = 330 °C).
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Affiliation(s)
- Elena Subbotina
- Department of Chemistry, Yale University, 225 Prospect St, New Haven, CT, USA.
- Department of Fibre and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, Teknikringen 56, 100 44, Stockholm, Sweden.
- Center for Green Chemistry & Green Engineering at Yale, 370 Prospect St, New Haven, CT, USA.
| | - Layra Rodrigues Souza
- Center for Green Chemistry & Green Engineering at Yale, 370 Prospect St, New Haven, CT, USA
| | - Julie Zimmerman
- Center for Green Chemistry & Green Engineering at Yale, 370 Prospect St, New Haven, CT, USA
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, CT, USA
- Yale School of the Environment, 195 Prospect St, New Haven, CT, USA
| | - Paul Anastas
- Department of Chemistry, Yale University, 225 Prospect St, New Haven, CT, USA.
- Center for Green Chemistry & Green Engineering at Yale, 370 Prospect St, New Haven, CT, USA.
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, CT, USA.
- Yale School of the Environment, 195 Prospect St, New Haven, CT, USA.
- Yale School of Public Health, 60 College St, New Haven, CT, USA.
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18
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Martín A, Arribas-Yuste E, Paniagua M, Morales G, Melero JA. Efficient Self-Condensation of Cyclohexanone into Biojet Fuel Precursors over Sulfonic Acid-Modified Silicas: Insights on the Effect of Pore Size and Structure. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:10175-10185. [PMID: 38994543 PMCID: PMC11234364 DOI: 10.1021/acssuschemeng.4c01956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 06/13/2024] [Accepted: 06/13/2024] [Indexed: 07/13/2024]
Abstract
Mesoporous silica materials with different pore structures and sizes have been used for supporting aryl sulfonic acid catalytic sites via a postsynthetic grafting approach. The synthesized materials have been evaluated in the solventless acid-catalyzed self-condensation of cyclohexanone (CHO) to obtain the corresponding C12 adducts. These compounds display great potential as oxygenated fuel precursors as they can be transformed into jet fuel range alkanes in a subsequent hydrodeoxygenation process. In this work, the synthesized catalysts have displayed high selectivity values toward monocondensed compounds (>95%), thus limiting the formation of undesired heavier condensation products, together with CHO conversion values in the range 20-40% after 2 h of reaction at 100 °C. The structural and textural properties of the supports play an important role in the catalytic performance. Moreover, the activity per acid center is correlated with the textural properties of the supports, indicating that a lower surface density of the anchored aryl sulfonic groups affords an improvement in their specific activity. Finally, the benefit of using supports with large pore sizes and open structures, which limit the fouling of the catalysts by organic deposits, is demonstrated in a stability and reusability test.
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Affiliation(s)
- Antonio Martín
- Chemical
and Environmental Engineering Group. ESCET, Universidad Rey Juan Carlos. c/Tulipán s/n, 28933 Móstoles, Spain
| | - Esther Arribas-Yuste
- Chemical
and Environmental Engineering Group. ESCET, Universidad Rey Juan Carlos. c/Tulipán s/n, 28933 Móstoles, Spain
| | - Marta Paniagua
- Chemical
and Environmental Engineering Group. ESCET, Universidad Rey Juan Carlos. c/Tulipán s/n, 28933 Móstoles, Spain
| | - Gabriel Morales
- Chemical
and Environmental Engineering Group. ESCET, Universidad Rey Juan Carlos. c/Tulipán s/n, 28933 Móstoles, Spain
- Instituto
de Tecnologías para la Sostenibilidad (ITPS). ESCET, Universidad Rey Juan Carlos. c/Tulipán s/n, 28933 Móstoles, Spain
| | - Juan A. Melero
- Chemical
and Environmental Engineering Group. ESCET, Universidad Rey Juan Carlos. c/Tulipán s/n, 28933 Móstoles, Spain
- Instituto
de Tecnologías para la Sostenibilidad (ITPS). ESCET, Universidad Rey Juan Carlos. c/Tulipán s/n, 28933 Móstoles, Spain
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19
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Dixon RA, Puente-Urbina A, Beckham GT, Román-Leshkov Y. Enabling Lignin Valorization Through Integrated Advances in Plant Biology and Biorefining. ANNUAL REVIEW OF PLANT BIOLOGY 2024; 75:239-263. [PMID: 39038247 DOI: 10.1146/annurev-arplant-062923-022602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
Despite lignin having long been viewed as an impediment to the processing of biomass for the production of paper, biofuels, and high-value chemicals, the valorization of lignin to fuels, chemicals, and materials is now clearly recognized as a critical element for the lignocellulosic bioeconomy. However, the intended application for lignin will likely require a preferred lignin composition and form. To that end, effective lignin valorization will require the integration of plant biology, providing optimal feedstocks, with chemical process engineering, providing efficient lignin transformations. Recent advances in our understanding of lignin biosynthesis have shown that lignin structure is extremely diverse and potentially tunable, while simultaneous developments in lignin refining have resulted in the development of several processes that are more agnostic to lignin composition. Here, we review the interface between in planta lignin design and lignin processing and discuss the advances necessary for lignin valorization to become a feature of advanced biorefining.
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Affiliation(s)
- Richard A Dixon
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas, USA;
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Allen Puente-Urbina
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado, USA
| | - Gregg T Beckham
- Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado, USA
| | - Yuriy Román-Leshkov
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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20
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Li Y, Liu M, Tang Q, Liang K, Sun Y, Yu Y, Lou Y, Liu Y, Yu H. Hydrogen-transfer strategy in lignin refinery: Towards sustainable and versatile value-added biochemicals. CHEMSUSCHEM 2024; 17:e202301912. [PMID: 38294404 DOI: 10.1002/cssc.202301912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/17/2024] [Accepted: 01/29/2024] [Indexed: 02/01/2024]
Abstract
Lignin, the most prevalent natural source of polyphenols on Earth, offers substantial possibilities for the conversion into aromatic compounds, which is critical for attaining sustainability and carbon neutrality. The hydrogen-transfer method has garnered significant interest owing to its environmental compatibility and economic viability. The efficacy of this approach is contingent upon the careful selection of catalytic and hydrogen-donating systems that decisively affect the yield and selectivity of the monomeric products resulting from lignin degradation. This paper highlights the hydrogen-transfer technique in lignin refinery, with a specific focus on the influence of hydrogen donors on the depolymerization pathways of lignin. It delineates the correlation between the structure and activity of catalytic hydrogen-transfer arrangements and the gamut of lignin-derived biochemicals, utilizing data from lignin model compounds, separated lignin, and lignocellulosic biomass. Additionally, the paper delves into the advantages and future directions of employing the hydrogen-transfer approach for lignin conversion. In essence, this concept investigation illuminates the efficacy of the hydrogen-transfer paradigm in lignin valorization, offering key insights and strategic directives to maximize lignin's value sustainably.
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Affiliation(s)
- Yilin Li
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Meng Liu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Qi Tang
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Kaixia Liang
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Yaxu Sun
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Yanyan Yu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Yuhan Lou
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Yongzhuang Liu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
| | - Haipeng Yu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, 150040, PR China
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21
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Kenny J, Neefe SR, Brandner DG, Stone ML, Happs RM, Kumaniaev I, Mounfield WP, Harman-Ware AE, Devos KM, Pendergast TH, Medlin JW, Román-Leshkov Y, Beckham GT. Design and Validation of a High-Throughput Reductive Catalytic Fractionation Method. JACS AU 2024; 4:2173-2187. [PMID: 38938803 PMCID: PMC11200236 DOI: 10.1021/jacsau.4c00126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/29/2024]
Abstract
Reductive catalytic fractionation (RCF) is a promising method to extract and depolymerize lignin from biomass, and bench-scale studies have enabled considerable progress in the past decade. RCF experiments are typically conducted in pressurized batch reactors with volumes ranging between 50 and 1000 mL, limiting the throughput of these experiments to one to six reactions per day for an individual researcher. Here, we report a high-throughput RCF (HTP-RCF) method in which batch RCF reactions are conducted in 1 mL wells machined directly into Hastelloy reactor plates. The plate reactors can seal high pressures produced by organic solvents by vertically stacking multiple reactor plates, leading to a compact and modular system capable of performing 240 reactions per experiment. Using this setup, we screened solvent mixtures and catalyst loadings for hydrogen-free RCF using 50 mg poplar and 0.5 mL reaction solvent. The system of 1:1 isopropanol/methanol showed optimal monomer yields and selectivity to 4-propyl substituted monomers, and validation reactions using 75 mL batch reactors produced identical monomer yields. To accommodate the low material loadings, we then developed a workup procedure for parallel filtration, washing, and drying of samples and a 1H nuclear magnetic resonance spectroscopy method to measure the RCF oil yield without performing liquid-liquid extraction. As a demonstration of this experimental pipeline, 50 unique switchgrass samples were screened in RCF reactions in the HTP-RCF system, revealing a wide range of monomer yields (21-36%), S/G ratios (0.41-0.93), and oil yields (40-75%). These results were successfully validated by repeating RCF reactions in 75 mL batch reactors for a subset of samples. We anticipate that this approach can be used to rapidly screen substrates, catalysts, and reaction conditions in high-pressure batch reactions with higher throughput than standard batch reactors.
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Affiliation(s)
- Jacob
K. Kenny
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Department
of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
| | - Sasha R. Neefe
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
| | - David G. Brandner
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
| | - Michael L. Stone
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
| | - Renee M. Happs
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
| | - Ivan Kumaniaev
- Department
of Organic Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - William P. Mounfield
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Anne E. Harman-Ware
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
| | - Katrien M. Devos
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
- Institute
of Plant Breeding, Genetics and Genomics, University of Georgia, Athens, Georgia 30602, United States
- Department
of Crop and Soil Sciences, University of
Georgia, Athens, Georgia 30602, United States
- Department
of Plant Biology, University of Georgia, Athens, Georgia 30602, United States
| | - Thomas H. Pendergast
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
- Institute
of Plant Breeding, Genetics and Genomics, University of Georgia, Athens, Georgia 30602, United States
- Department
of Crop and Soil Sciences, University of
Georgia, Athens, Georgia 30602, United States
- Department
of Plant Biology, University of Georgia, Athens, Georgia 30602, United States
| | - J. Will Medlin
- Department
of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
| | - Yuriy Román-Leshkov
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Gregg T. Beckham
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Department
of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80303, United States
- Center
for Bioenergy Innovation, Oak Ridge, Tennessee 37830, United States
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22
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Yang T, Liang Y, Liu G, Wang Z, Tong Y, Li W. Glycine-Modified Co-MOF Pervaporation Membrane to Enhance Water Transporting. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12035-12044. [PMID: 38814169 DOI: 10.1021/acs.langmuir.4c00825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Cobalt-based metal-organic frameworks (Co-MOFs) with a two-dimensional layered morphology have received increasing attention for pervaporation due to their stability and hydrophilic properties. Using amino glycine (Gly) as a cross-linking agent, the Co-MOF ultrathin two-dimensional membrane doped with organic filler sodium alginate (SA) with the "brick-mixed-sand" structure was proposed. Polyacrylonitrile (PAN) was selected as the support layer of the hybrid membrane. The introduction of Gly efficiently solved the nanomaterial stacking problem and controllably adjusted the interlayer spacing between the nanosheets, which demonstrated good performance for ethanol dehydration. The results of this experimental research showed that the total flux of alcohol/water (9:1) separation by Gly-Co-MOF-SA/PAN hybrid membranes reached 1902 g m-2 h-1, which was 67% higher than that of the pure SA membranes. The "brick-mixed-sand" lamellar dense morphology of Gly-Co-MOF not only enhances membrane hydrophilicity but also provides effective channels for the rapid transport of water, which is expected to be used for the dehydration of organic solvents.
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Affiliation(s)
- Ting Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yao Liang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Guijuan Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Ziye Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yujia Tong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
- NJTU Membrane Application Institute Co., Ltd, Nanjing 211816, China
| | - Weixing Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
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23
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De Smet G, Bai X, Maes BUW. Selective C(aryl)-O bond cleavage in biorenewable phenolics. Chem Soc Rev 2024; 53:5489-5551. [PMID: 38634517 DOI: 10.1039/d3cs00570d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Biorefining of lignocellulosic biomass via a lignin first approach delivers a range of products with high oxygen content. Besides pulp, a lignin oil rich in guaiacols and syringols is obtained bearing multiple C(aryl)-OH and C(aryl)-OMe groups, typically named phenolics. Similarly, technical lignin can be used but is generally more difficult to process providing lower yields of monomers. Removal of the hydroxy and methoxy groups in these oxygenated arenes is challenging due to the inherently strong C-O bonds, in addition to the steric and electronic deactivation by adjacent -OH or -OMe groups. Moreover, chemoselective removal of a specific group in the presence of other similar functionalities is non-trivial. Other side-reactions such as ring saturation and transalkylation further complicate the desired reduction process. In this overview, three different selective reduction reactions are considered. Complete hydrodeoxygenation removes both hydroxy and methoxy groups resulting in benzene and alkylated derivatives (BTX type products) which is often complicated by overreduction of the arene ring. Hydrodemethoxylation selectively removes methoxy groups in the presence of hydroxy groups leading to phenol products, while hydrodehydroxylation only removes hydroxy groups without cleavage of methoxy groups giving anisole products. Instead of defunctionalization via reduction transformation of C(aryl)-OH, albeit via an initial derivatization into C(aryl)-OX, into other functionalities is possible and also discussed. In addition to methods applying guaiacols and syringols present in lignin oil as model substrates, special attention is given to methods using mixtures of these compounds obtained from wood/technical lignin. Finally, other important aspects of C-O bond activation with respect to green chemistry are discussed.
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Affiliation(s)
- Gilles De Smet
- Organic Synthesis Division (ORSY), Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Xingfeng Bai
- Organic Synthesis Division (ORSY), Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Bert U W Maes
- Organic Synthesis Division (ORSY), Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
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24
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Wu L, Wu Q, Han Y, Zhang D, Zhang R, Song N, Wu X, Zeng J, Yuan P, Chen J, Du A, Huang K, Yao X. Strengthening the Synergy between Oxygen Vacancies in Electrocatalysts for Efficient Glycerol Electrooxidation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2401857. [PMID: 38594018 DOI: 10.1002/adma.202401857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 03/24/2024] [Indexed: 04/11/2024]
Abstract
Defect-engineered bimetallic oxides exhibit high potential for the electrolysis of small organic molecules. However, the ambiguity in the relationship between the defect density and electrocatalytic performance makes it challenging to control the final products of multi-step multi-electron reactions in such electrocatalytic systems. In this study, controllable kinetics reduction is used to maximize the oxygen vacancy density of a Cu─Co oxide nanosheet (CuCo2O4 NS), which is used to catalyze the glycerol electrooxidation reaction (GOR). The CuCo2O4-x NS with the highest oxygen-vacancy density (CuCo2O4-x-2) oxidizes C3 molecules to C1 molecules with selectivity of almost 100% and a Faradaic efficiency of ≈99%, showing the best oxidation performance among all the modified catalysts. Systems with multiple oxygen vacancies in close proximity to each other synergistically facilitate the cleavage of C─C bonds. Density functional theory calculations confirm the ability of closely spaced oxygen vacancies to facilitate charge transfer between the catalyst and several key glycolic-acid (GCA) intermediates of the GOR process, thereby facilitating the decomposition of C2 intermediates to C1 molecules. This study reveals qualitatively in tuning the density of oxygen vacancies for altering the reaction pathway of GOR by the synergistic effects of spatial proximity of high-density oxygen vacancies.
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Affiliation(s)
- Liyun Wu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Qilong Wu
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2500, Australia
| | - Yun Han
- School of Engineering and Built Environment, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, Queensland, 4111, Australia
| | - Dongdong Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Rongrong Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Nan Song
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Xiaofeng Wu
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, P. R. China
| | - Jianrong Zeng
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, P. R. China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
| | - Pei Yuan
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350002, P. R. China
| | - Jun Chen
- Intelligent Polymer Research Institute and ARC Centre of Excellence for Electromaterials Science, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, NSW, 2500, Australia
| | - Aijun Du
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Gardens Point Campus, Brisbane, 4001, Australia
| | - KeKe Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Xiangdong Yao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
- School of Advanced Energy and IGCME, Sun Yat-Sen University (Shenzhen), Shenzhen, Guangdong, 518107, P. R. China
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25
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Li N, Yan K, Rukkijakan T, Liang J, Liu Y, Wang Z, Nie H, Muangmeesri S, Castiella-Ona G, Pan X, Zhou Q, Jiang G, Zhou G, Ralph J, Samec JSM, Wang F. Selective lignin arylation for biomass fractionation and benign bisphenols. Nature 2024; 630:381-386. [PMID: 38811733 DOI: 10.1038/s41586-024-07446-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 04/19/2024] [Indexed: 05/31/2024]
Abstract
Lignocellulose is mainly composed of hydrophobic lignin and hydrophilic polysaccharide polymers, contributing to an indispensable carbon resource for green biorefineries1,2. When chemically treated, lignin is compromised owing to detrimental intra- and intermolecular crosslinking that hampers downstream process3,4. The current valorization paradigms aim to avoid the formation of new C-C bonds, referred to as condensation, by blocking or stabilizing the vulnerable moieties of lignin5-7. Although there have been efforts to enhance biomass utilization through the incorporation of phenolic additives8,9, exploiting lignin's proclivity towards condensation remains unproven for valorizing both lignin and carbohydrates to high-value products. Here we leverage the proclivity by directing the C-C bond formation in a catalytic arylation pathway using lignin-derived phenols with high nucleophilicity. The selectively condensed lignin, isolated in near-quantitative yields while preserving its prominent cleavable β-ether units, can be unlocked in a tandem catalytic process involving aryl migration and transfer hydrogenation. Lignin in wood is thereby converted to benign bisphenols (34-48 wt%) that represent performance-advantaged replacements for their fossil-based counterparts. Delignified pulp from cellulose and xylose from xylan are co-produced for textile fibres and renewable chemicals. This condensation-driven strategy represents a key advancement complementary to other promising monophenol-oriented approaches targeting valuable platform chemicals and materials, thereby contributing to holistic biomass valorization.
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Affiliation(s)
- Ning Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- Liaoning Key Laboratory of Biomass Conversion for Energy and Material, Dalian, China
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden
| | - Kexin Yan
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Thanya Rukkijakan
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden
| | - Jiefeng Liang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao, China
| | - Yuting Liu
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Zhipeng Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Heran Nie
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | | | | | - Xuejun Pan
- Department of Biological Systems Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Qunfang Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Guangyuan Zhou
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - John Ralph
- Department of Biological Systems Engineering, University of Wisconsin-Madison, Madison, WI, USA
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA
| | - Joseph S M Samec
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden.
| | - Feng Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
- Liaoning Key Laboratory of Biomass Conversion for Energy and Material, Dalian, China.
- University of Chinese Academy of Sciences, Beijing, China.
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26
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Li X, Ma R, Gao X, Li H, Wang S, Song G. Harnessing Atomically Dispersed Cobalt for the Reductive Catalytic Fractionation of Lignocellulose. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2310202. [PMID: 38493491 PMCID: PMC11165530 DOI: 10.1002/advs.202310202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/01/2024] [Indexed: 03/19/2024]
Abstract
The reductive catalytic fractionation (RCF) of lignocellulose, considering lignin valorization at design time, has demonstrated the entire utilization of all lignocellulose components; however, such processes always require catalysts based on precious metals or high-loaded nonprecious metals. Herein, the study develops an ultra-low loaded, atomically dispersed cobalt catalyst, which displays an exceptional performance in the RCF of lignocellulose. An approximately theoretical maximum yield of phenolic monomers (48.3 wt.%) from lignin is realized, rivaling precious metal catalysts. High selectivity toward 4-propyl-substituted guaiacol/syringol facilitates their purification and follows syntheses of highly adhesive polyesters. Lignin nanoparticles (LNPs) are generated by simple treatment of the obtained phenolic dimers and oligomers. RCF-resulted carbohydrate pulp are more obedient to enzymatic hydrolysis. Experimental studies on lignin model compounds reveal the concerted cleavage of Cα-O and Cβ-O pathway for the rupture of β-O-4 structure. Overall, the approach involves valorizing products derived from lignin biopolymer, providing the opportunity for the comprehensive utilization of all components within lignocellulose.
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Affiliation(s)
- Xiancheng Li
- State Key Laboratory of Efficient Production of Forest ResourcesBeijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry UniversityBeijing100083China
| | - Rumin Ma
- State Key Laboratory of Efficient Production of Forest ResourcesBeijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry UniversityBeijing100083China
| | - Xueying Gao
- State Key Laboratory of Efficient Production of Forest ResourcesBeijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry UniversityBeijing100083China
- Institute of Nuclear and New Energy TechnologyTsinghua UniversityBeijing100084China
| | - Helong Li
- State Key Laboratory of Efficient Production of Forest ResourcesBeijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry UniversityBeijing100083China
| | - Shuizhong Wang
- State Key Laboratory of Efficient Production of Forest ResourcesBeijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry UniversityBeijing100083China
| | - Guoyong Song
- State Key Laboratory of Efficient Production of Forest ResourcesBeijing Key Laboratory of Lignocellulosic ChemistryBeijing Forestry UniversityBeijing100083China
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Das S, Chandukishore T, Ulaganathan N, Dhodduraj K, Gorantla SS, Chandna T, Gupta LK, Sahoo A, Atheena PV, Raval R, Anjana PA, DasuVeeranki V, Prabhu AA. Sustainable biorefinery approach by utilizing xylose fraction of lignocellulosic biomass. Int J Biol Macromol 2024; 266:131290. [PMID: 38569993 DOI: 10.1016/j.ijbiomac.2024.131290] [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: 11/03/2023] [Revised: 03/20/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024]
Abstract
Lignocellulosic biomass (LCB) has been a lucrative feedstock for developing biochemical products due to its rich organic content, low carbon footprint and abundant accessibility. The recalcitrant nature of this feedstock is a foremost bottleneck. It needs suitable pretreatment techniques to achieve a high yield of sugar fractions such as glucose and xylose with low inhibitory components. Cellulosic sugars are commonly used for the bio-manufacturing process, and the xylose sugar, which is predominant in the hemicellulosic fraction, is rejected as most cell factories lack the five‑carbon metabolic pathways. In the present review, more emphasis was placed on the efficient pretreatment techniques developed for disintegrating LCB and enhancing xylose sugars. Further, the transformation of the xylose to value-added products through chemo-catalytic routes was highlighted. In addition, the review also recapitulates the sustainable production of biochemicals by native xylose assimilating microbes and engineering the metabolic pathway to ameliorate biomanufacturing using xylose as the sole carbon source. Overall, this review will give an edge on the bioprocessing of microbial metabolism for the efficient utilization of xylose in the LCB.
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Affiliation(s)
- Satwika Das
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - T Chandukishore
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Nivedhitha Ulaganathan
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Kawinharsun Dhodduraj
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Sai Susmita Gorantla
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Teena Chandna
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Laxmi Kumari Gupta
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Ansuman Sahoo
- Biochemical Engineering Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - P V Atheena
- Department of Biotechnology, Manipal Institute of Technology, Manipal 576104, Karnataka, India
| | - Ritu Raval
- Department of Biotechnology, Manipal Institute of Technology, Manipal 576104, Karnataka, India
| | - P A Anjana
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Venkata DasuVeeranki
- Biochemical Engineering Laboratory, Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Ashish A Prabhu
- Bioprocess Development Research Laboratory, Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India.
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28
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Cosgrove DJ. Structure and growth of plant cell walls. Nat Rev Mol Cell Biol 2024; 25:340-358. [PMID: 38102449 DOI: 10.1038/s41580-023-00691-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2023] [Indexed: 12/17/2023]
Abstract
Plant cells build nanofibrillar walls that are central to plant growth, morphogenesis and mechanics. Starting from simple sugars, three groups of polysaccharides, namely, cellulose, hemicelluloses and pectins, with very different physical properties are assembled by the cell to make a strong yet extensible wall. This Review describes the physics of wall growth and its regulation by cellular processes such as cellulose production by cellulose synthase, modulation of wall pH by plasma membrane H+-ATPase, wall loosening by expansin and signalling by plant hormones such as auxin and brassinosteroid. In addition, this Review discusses the nuanced roles, properties and interactions of cellulose, matrix polysaccharides and cell wall proteins and describes how wall stress and wall loosening cooperatively result in cell wall growth.
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Affiliation(s)
- Daniel J Cosgrove
- Department of Biology, Pennsylvania State University, University Park, Pennsylvania, USA.
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29
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Xu Y, Fan Z, Li X, Yang S, Wang J, Zheng A, Shu R. Cooperative production of monophenolic chemicals and carbon adsorption materials from cascade pyrolysis of acid hydrolysis lignin. BIORESOURCE TECHNOLOGY 2024; 399:130557. [PMID: 38460561 DOI: 10.1016/j.biortech.2024.130557] [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: 12/13/2023] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
A novel cascade pyrolysis upgrading process for acid hydrolysis lignin (AHL), consisting of pyrolysis, catalytic upgrading of pyrolysis vapors, and pyrolysis char, was developed to improve the yield of value-added products (monophenolic chemicals and carbon materials). Pyrolysis of AHL at 450 °C and subsequent catalytic upgrading of pyrolysis vapors over Ni/H-ZSM-5 boosted the concentration of monophenolic chemicals in pyrolysis liquids by 58%. The carbon material prepared from pyrolysis char using KOH as activating agent exhibited a large specific surface area of 2902.5 m2/g and a large total pore volume of 1.45 cm3/g, thus affording good adsorption capacity for methylene blue (824.87 mg/g) and iodine (2333.17 mg/g). Moreover, the cascade pyrolysis upgrading of AHL achieved a yield of 68.52% desired products, which was much higher than the reported results (single production of monophenols and pyrolysis char). In summary, this work provides a potential reference for efficient utilization of lignin in large-scale applications.
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Affiliation(s)
- Ying Xu
- Jimei University, College of Mechanical Equipment and Mechanical Engineering, Fujian Province Key Laboratory of Energy Clean Utilization and Development, Fujian Province Clean Combustion and Energy Utilization Research Center, Xiamen 316021, China; College of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114000, China; Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Zhiqiang Fan
- College of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114000, China
| | - Xianchun Li
- College of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114000, China
| | - Shaoqi Yang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Jin Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Anqing Zheng
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
| | - Riyang Shu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China.
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30
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Tang D, Lin X, Zhang Q, Wang Z, Liu Y, Jin Y, Wu X, Hu C, Yuan P. Hydrolysis-dominated catalytic system: Hydrogen-free hydrogenolysis of lignin from Pd-MoO x/TiO 2. Int J Biol Macromol 2024; 267:131538. [PMID: 38621572 DOI: 10.1016/j.ijbiomac.2024.131538] [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: 01/08/2024] [Revised: 03/21/2024] [Accepted: 04/09/2024] [Indexed: 04/17/2024]
Abstract
Lignin is continuously investigated by various techniques for valorization due to its high content of oxygen-containing functional groups. Catalytic systems employing hydrolysis‑hydrogenolysis, leveraging the synergistic effect of redox metal sites and acid sites, exhibit efficient degradation of lignin. The predominance of either hydrolysis or hydrogenolysis reactions hinges upon the relative activity of acid and metal sites, as well as the intensity of the reductive atmosphere. In this study, the Pd-MoOx/TiO2 catalyst was found to primarily catalyze hydrolysis in the lignin depolymerization process, attributed to the abundance of moderate acidic sites on Pd and the redox-assisted catalysis of MoOx under inert conditions. After subjecting the reaction to 240 °C for 30 h, a yield of 48.22 wt% of total phenolic monomers, with 5.90 wt% consisting of diphenols, was achieved. Investigation into the conversion of 4-propylguaiacol (4-PG), a major depolymerized monomer of corncob lignin, revealed the production of ketone intermediates, a phenomenon closely linked to the unique properties of MoOx. Dehydrogenation of the propyl is a key step in initiating the reaction, and 4-PG could be almost completely transformed, accompanied by an over 97 % of 4-propylcatechol selectivity. This distinctive system lays a new theoretical groundwork for the eco-friendly valorization of lignin.
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Affiliation(s)
- Daobin Tang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China; School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Xuebin Lin
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Qi Zhang
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Zhenni Wang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yuhang Liu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yanqiao Jin
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China.
| | - Xinru Wu
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
| | - Cejun Hu
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Pei Yuan
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China.
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31
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Feng Y, Pan X, Qiao H, Zhuang X. Analytical Pyrolysis of Soluble Bio-Tar from Steam Pretreatment of Bamboo by Using TG-FTIR and Py-GC/MS. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1985. [PMID: 38730792 PMCID: PMC11084455 DOI: 10.3390/ma17091985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/16/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024]
Abstract
Steam pretreatment at high temperatures enables fresh bamboo to possess antifungal and antiseptic properties. The process produces a large amount of wastewater that urgently needs to be recycled. Soluble bio-tars derived from wastewater under low-temperature (LTS-tar) and high-temperature (HTS-tar) steam pretreatments of moso bamboo were studied with a thermogravimetric analyzer coupled with Fourier transform infrared spectroscopy (TG-FTIR) and pyrolysis-gas-chromatography/mass spectrometry (Py-GC/MS). Thermogravimetric analysis showed that in the three stages of the thermal decomposition process, the final residue of the bamboo and HTS-tar had two main peaks of 0.88 wt% and 6.85 wt%. The LTS-tar had much more complicated thermal decomposition behavior, with six steps and a high residue yield of 23.86 wt%. A large quantity of CH4 was observed at the maximum mass loss rates of the bamboo and bio-tars. Acids, aldehydes, ketones, esters, and phenolic compounds were found in the pyrolysis products of the bamboo and soluble bio-tars. Both bio-tars contained carbohydrates and lignin fragments, but the LTS-tar under mild steam conditions had more saccharides and was much more sensitive to temperature. The lignin in the bamboo degraded under harsh steam conditions, resulting in high aromatic and polymeric features for the HTS-tar. The significant differences between LTS-tar and HTS-tar require different techniques to achieve the resource utilization of wastewater in the bamboo industry.
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Affiliation(s)
| | | | | | - Xiaowei Zhuang
- Zhejiang Academy of Forestry, Liuhe Road 399, Hangzhou 310023, China; (Y.F.); (X.P.)
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32
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Khan RJ, Guan J, Lau CY, Zhuang H, Rehman S, Leu SY. Monolignol Potential and Insights into Direct Depolymerization of Fruit and Nutshell Remains for High Value Sustainable Aromatics. CHEMSUSCHEM 2024; 17:e202301306. [PMID: 38078500 DOI: 10.1002/cssc.202301306] [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: 09/05/2023] [Revised: 11/16/2023] [Accepted: 12/08/2023] [Indexed: 01/19/2024]
Abstract
The inedible parts of nuts and stone fruits are low-cost and lignin-rich feedstock for more sustainable production of aromatic chemicals in comparison with the agricultural and forestry residues. However, the depolymerization performances on food-related biomass remains unclear, owing to the broad physicochemical variations from the edible parts of the fruits and plant species. In this study, the monomer production potentials of ten major fruit and nutshell biomass were investigated with comprehensive numerical information derived from instrumental analysis, such as plant cell wall chemical compositions, syringyl/guaiacyl (S/G ratios, and contents of lignin substructure linkages (β-O-4, β-β, β-5). A standardized one-pot reductive catalytic fractionation (RCF) process was applied to benchmark the monomer yields, and the results were statistically analyzed. Among all the tested biomass, mango endocarp provided the highest monolignol yields of 37.1 % per dry substrates. Positive S-lignin (70-84 %) resulted in higher monomer yield mainly due to more cleavable β-O-4 linkages and less condensed C-C linkages. Strong positive relationships were identified between β-O-4 and S-lignin and between β-5 and G-lignin. The analytical, numerical, and experimental results of this study shed lights to process design of lignin-first biorefinery in food-processing industries and waste management works.
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Affiliation(s)
- Rabia J Khan
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Jianyu Guan
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Chun Y Lau
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Huichuan Zhuang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Shazia Rehman
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
| | - Shao-Yuan Leu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
- Research Centre for Resources Engineering towards Carbon Neutrality (RCRE), The Hong Kong Polytechnic University, Hong Kong
- Research Institute for Future Food (RiFood), The Hong Kong Polytechnic University, Hong Kong, 3400-8322
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33
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Liu J, Wu L, Wang R, Xue X, Wang D, Liang J. Evaluation of biomass sources on the production of biofuels from lignocellulosic waste over zeolite catalysts. BIORESOURCE TECHNOLOGY 2024; 398:130510. [PMID: 38432545 DOI: 10.1016/j.biortech.2024.130510] [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: 11/27/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
Catalytic fast pyrolysis (CFP) is a promising method to convert biomass waste into sustainable bio-oils. However, the relationship gap between biomass characteristics and bio-oil quality has hindered the development of CFP technology. This study investigated the pyrolysis and CFP of ten biomass sources over zeolites, and showed that biomass sources and zeolites played important roles in bio-oil production. For noncatalytic trials, the bio-oil yield was positively related to holocellulose (R2 = 0.75) and volatiles content (R2 = 0.62) but negatively to ash content (R2 = -0.65). The bio-oil quality was dramatically improved after catalyst addition. For CFP over ZSM-5, hydrocarbons selectivity of bio-oils was increased by 1.6∼79.3 times, which was closely related to H/C ratio (R2 = 0.79). For ZSM-5@SBA-15 trials, the dependency of hydrocarbons selectivity on biomass characteristics was less clear than that in ZSM-5 counterparts, although undesirable PAHs were inhibited for most biomass sources. This study demonstrated the influence mechanism of biomass characteristics on bio-oil compositions.
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Affiliation(s)
- Jiaomei Liu
- School of Energy and Power Engineering, Beihang University, 102206, China
| | - Liu Wu
- School of Energy and Power Engineering, Beihang University, 102206, China
| | - Rong Wang
- Chunliang Oil Fields in Shengli, 256504, China
| | - Xiangfei Xue
- School of Energy and Power Engineering, Beihang University, 102206, China
| | - Dongyu Wang
- School of Energy and Power Engineering, Beihang University, 102206, China
| | - Jie Liang
- School of Energy and Power Engineering, Beihang University, 102206, China.
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34
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Gao X, Yang Z, Zhang W, Pan B. Carbon redirection via tunable Fenton-like reactions under nanoconfinement toward sustainable water treatment. Nat Commun 2024; 15:2808. [PMID: 38561360 PMCID: PMC10985074 DOI: 10.1038/s41467-024-47269-6] [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] [Received: 10/21/2023] [Accepted: 03/26/2024] [Indexed: 04/04/2024] Open
Abstract
The ongoing pattern shift in water treatment from pollution control to energy recovery challenges the energy-intensive chemical oxidation processes that have been developed for over a century. Redirecting the pathways of carbon evolution from molecular fragmentation to polymerization is critical for energy harvesting during chemical oxidation, yet the regulation means remain to be exploited. Herein, by confining the widely-studied oxidation system-Mn3O4 catalytic activation of peroxymonosulfate-inside amorphous carbon nanotubes (ACNTs), we demonstrate that the pathways of contaminant conversion can be readily modulated by spatial nanoconfinement. Reducing the pore size of ACNTs from 120 to 20 nm monotonously improves the pathway selectivity toward oligomers, with the yield one order of magnitude higher under 20-nm nanoconfinement than in bulk. The interactions of Mn3O4 with ACNTs, reactant enrichment, and pH lowering under nanoconfinement are evidenced to collectively account for the enhanced selectivity toward polymerization. This work provides an adaptive paradigm for carbon redirection in a variety of catalytic oxidation processes toward energy harvesting and sustainable water purification.
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Affiliation(s)
- Xiang Gao
- State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing, China
| | - Zhichao Yang
- State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing, China
- Research Center for Environmental Nanotechnology (ReCENT), School of Environment, Nanjing University, Nanjing, China
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing, China.
- Research Center for Environmental Nanotechnology (ReCENT), School of Environment, Nanjing University, Nanjing, China.
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35
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de Araújo EA, Cortez AA, Pellegrini VDOA, Vacilotto MM, Cruz AF, Batista PR, Polikarpov I. Molecular mechanism of cellulose depolymerization by the two-domain BlCel9A enzyme from the glycoside hydrolase family 9. Carbohydr Polym 2024; 329:121739. [PMID: 38286536 DOI: 10.1016/j.carbpol.2023.121739] [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: 07/21/2023] [Revised: 12/20/2023] [Accepted: 12/23/2023] [Indexed: 01/31/2024]
Abstract
Carbohydrate-active enzymes from the glycoside hydrolase family 9 (GH9) play a key role in processing lignocellulosic biomass. Although the structural features of some GH9 enzymes are known, the molecular mechanisms that drive their interactions with cellulosic substrates remain unclear. To investigate the molecular mechanisms that the two-domain Bacillus licheniformis BlCel9A enzyme utilizes to depolymerize cellulosic substrates, we used a combination of biochemical assays, X-ray crystallography, small-angle X-ray scattering, and molecular dynamics simulations. The results reveal that BlCel9A breaks down cellulosic substrates, releasing cellobiose and glucose as the major products, but is highly inefficient in cleaving oligosaccharides shorter than cellotetraose. In addition, fungal lytic polysaccharide oxygenase (LPMO) TtLPMO9H enhances depolymerization of crystalline cellulose by BlCel9A, while exhibiting minimal impact on amorphous cellulose. The crystal structures of BlCel9A in both apo form and bound to cellotriose and cellohexaose were elucidated, unveiling the interactions of BlCel9A with the ligands and their contribution to substrate binding and products release. MD simulation analysis reveals that BlCel9A exhibits higher interdomain flexibility under acidic conditions, and SAXS experiments indicate that the enzyme flexibility is induced by pH and/or temperature. Our findings provide new insights into BlCel9A substrate specificity and binding, and synergy with the LPMOs.
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Affiliation(s)
- Evandro Ares de Araújo
- Brazilian Synchrotron Light Laboratory, Brazilian Center for Research in Energy and Materials, Giuseppe Maximo Scolfaro, 10000, Campinas, SP 13083-970, Brazil; Sao Carlos Institute of Physics, University of Sao Paulo, Av. Trabalhador Sao Carlense, 400, Sao Carlos, SP 13566-590, Brazil
| | - Anelyse Abreu Cortez
- Sao Carlos Institute of Physics, University of Sao Paulo, Av. Trabalhador Sao Carlense, 400, Sao Carlos, SP 13566-590, Brazil
| | | | - Milena Moreira Vacilotto
- Sao Carlos Institute of Physics, University of Sao Paulo, Av. Trabalhador Sao Carlense, 400, Sao Carlos, SP 13566-590, Brazil
| | - Amanda Freitas Cruz
- Sao Carlos Institute of Physics, University of Sao Paulo, Av. Trabalhador Sao Carlense, 400, Sao Carlos, SP 13566-590, Brazil
| | - Paulo Ricardo Batista
- Oswaldo Cruz Foundation, Scientific Computing Programme, Av. Brasil, 4365, Rio de Janeiro, RJ 21040-900, Brazil
| | - Igor Polikarpov
- Sao Carlos Institute of Physics, University of Sao Paulo, Av. Trabalhador Sao Carlense, 400, Sao Carlos, SP 13566-590, Brazil.
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36
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Wolf ME, Lalande AT, Newman BL, Bleem AC, Palumbo CT, Beckham GT, Eltis LD. The catabolism of lignin-derived p-methoxylated aromatic compounds by Rhodococcus jostii RHA1. Appl Environ Microbiol 2024; 90:e0215523. [PMID: 38380926 PMCID: PMC10952524 DOI: 10.1128/aem.02155-23] [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: 11/30/2023] [Accepted: 01/23/2024] [Indexed: 02/22/2024] Open
Abstract
Emergent strategies to valorize lignin, an abundant but underutilized aromatic biopolymer, include tandem processes that integrate chemical depolymerization and biological catalysis. To date, aromatic monomers from C-O bond cleavage of lignin have been converted to bioproducts, but the presence of recalcitrant C-C bonds in lignin limits the product yield. A promising chemocatalytic strategy that overcomes this limitation involves phenol methyl protection and autoxidation. Incorporating this into a tandem process requires microbial cell factories able to transform the p-methoxylated products in the resulting methylated lignin stream. In this study, we assessed the ability of Rhodococcus jostii RHA1 to catabolize the major aromatic products in a methylated lignin stream and elucidated the pathways responsible for this catabolism. RHA1 grew on a methylated pine lignin stream, catabolizing the major aromatic monomers: p-methoxybenzoate (p-MBA), veratrate, and veratraldehyde. Bioinformatic analyses suggested that a cytochrome P450, PbdA, and its cognate reductase, PbdB, are involved in p-MBA catabolism. Gene deletion studies established that both pbdA and pbdB are essential for growth on p-MBA and several derivatives. Furthermore, a deletion mutant of a candidate p-hydroxybenzoate (p-HBA) hydroxylase, ΔpobA, did not grow on p-HBA. Veratraldehyde and veratrate catabolism required both vanillin dehydrogenase (Vdh) and vanillate O-demethylase (VanAB), revealing previously unknown roles of these enzymes. Finally, a ΔpcaL strain grew on neither p-MBA nor veratrate, indicating they are catabolized through the β-ketoadipate pathway. This study expands our understanding of the bacterial catabolism of aromatic compounds and facilitates the development of biocatalysts for lignin valorization.IMPORTANCELignin, an abundant aromatic polymer found in plant biomass, is a promising renewable replacement for fossil fuels as a feedstock for the chemical industry. Strategies for upgrading lignin include processes that couple the catalytic fractionation of biomass and biocatalytic transformation of the resulting aromatic compounds with a microbial cell factory. Engineering microbial cell factories for this biocatalysis requires characterization of bacterial pathways involved in catabolizing lignin-derived aromatic compounds. This study identifies new pathways for lignin-derived aromatic degradation in Rhodococcus, a genus of bacteria well suited for biocatalysis. Additionally, we describe previously unknown activities of characterized enzymes on lignin-derived compounds, expanding their utility. This work advances the development of strategies to replace fossil fuel-based feedstocks with sustainable alternatives.
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Affiliation(s)
- Megan E. Wolf
- Department of Microbiology and Immunology, Life Sciences Institute, The University of British Columbia, Vancouver, Canada
| | - Anne T. Lalande
- Department of Microbiology and Immunology, Life Sciences Institute, The University of British Columbia, Vancouver, Canada
| | - Brianne L. Newman
- Department of Microbiology and Immunology, Life Sciences Institute, The University of British Columbia, Vancouver, Canada
| | - Alissa C. Bleem
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado, USA
| | - Chad T. Palumbo
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado, USA
| | - Gregg T. Beckham
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado, USA
| | - Lindsay D. Eltis
- Department of Microbiology and Immunology, Life Sciences Institute, The University of British Columbia, Vancouver, Canada
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37
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Wu X, Smet E, Brandi F, Raikwar D, Zhang Z, Maes BUW, Sels BF. Advancements and Perspectives toward Lignin Valorization via O-Demethylation. Angew Chem Int Ed Engl 2024; 63:e202317257. [PMID: 38128012 DOI: 10.1002/anie.202317257] [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] [Received: 11/13/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 12/23/2023]
Abstract
Lignin represents the largest aromatic carbon resource in plants, holding significant promise as a renewable feedstock for bioaromatics and other cyclic hydrocarbons in the context of the circular bioeconomy. However, the methoxy groups of aryl methyl ethers, abundantly found in technical lignins and lignin-derived chemicals, limit their pertinent chemical reactivity and broader applicability. Unlocking the phenolic hydroxyl functionality through O-demethylation (ODM) has emerged as a valuable approach to mitigate this need and enables further applications. In this review, we provide a comprehensive summary of the progress in the valorization of technical lignin and lignin-derived chemicals via ODM, both catalytic and non-catalytic reactions. Furthermore, a detailed analysis of the properties and potential applications of the O-demethylated products is presented, accompanied by a systematic overview of available ODM reactions. This review primarily focuses on enhancing the phenolic hydroxyl content in lignin-derived species through ODM, showcasing its potential in the catalytic funneling of lignin and value-added applications. A comprehensive synopsis and future outlook are included in the concluding section of this review.
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Affiliation(s)
- Xian Wu
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Ewoud Smet
- Organic Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Francesco Brandi
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Deepak Raikwar
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Zhenlei Zhang
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
| | - Bert U W Maes
- Organic Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020, Antwerp, Belgium
| | - Bert F Sels
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, 3001, Leuven, Belgium
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38
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Wang R, You X, Qi S, Tian R, Zhang H. Enhancing Mechanical Performance of High-Lignin-Filled Polypropylene via Reactive Extrusion. Polymers (Basel) 2024; 16:520. [PMID: 38399898 PMCID: PMC11154581 DOI: 10.3390/polym16040520] [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] [Received: 01/04/2024] [Revised: 02/04/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Polypropylene (PP) is one of the most extensively used commodity plastics. In terms of eco-friendliness, it is worth considering preparing high-lignin-filled PP. This study explores the incorporation of high lignin content, derived from acetic acid lignin (AAL) and Kraft lignin (KL), into PP through twin-screw extrusion and injection molding. The challenge lies in maintaining mechanical performance. A compatibilizer-specifically, maleic anhydride-grafted polypropylene (MAPP)-is employed to enhance lignin-PP compatibility by chemically bonding with lignin and physically associating with the PP phase. Results indicate that KL maintains better dispersity than AAL. Compatibilizers with a high maleic anhydride (MA) level (≥0.8 wt.%) and moderate melt flow index (MFI) in the range of 60-100 g 10 min⁻¹ prove favorable in constructing a reinforced PP/KL network. Optimizing with 40 wt.% lignin content and 10 parts per hundred (pph) of compatibilizer yields blends with mechanical performance comparable to neat PP, exhibiting a notable increase in modulus and heat deflection temperature (HDT). Furthermore, utilizing PP/lignin blends can lead to a 20% reduction in expenses and approximately 40% reduction in PP-induced greenhouse gas (GHG) emissions. This approach not only reduces PP costs but also adds value to lignin utilization in a sustainable and cost-effective manner.
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Affiliation(s)
| | - Xiangyu You
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science of Science & Technology, Xi’an 710021, China; (R.W.); (S.Q.); (R.T.)
| | | | | | - Huijie Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science of Science & Technology, Xi’an 710021, China; (R.W.); (S.Q.); (R.T.)
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39
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Gu H, Han X, Zhang J, Bao J. Upgrading dry acid pretreatment by post-hydrolysis for carbon efficient conversion of lignocellulose. BIORESOURCE TECHNOLOGY 2024; 394:130261. [PMID: 38151209 DOI: 10.1016/j.biortech.2023.130261] [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: 11/24/2023] [Revised: 12/23/2023] [Accepted: 12/23/2023] [Indexed: 12/29/2023]
Abstract
Dry acid pretreatment (DAP) as a promising process for industrial biorefinery provide an efficient bioconversion of cellulose without free wastewater, although the partial xylan and lignin degrade to inhibitors or recondense. A biorefinery strategy for carbon efficient conversion of lignocellulose into bioethanol, xylose, and reactive lignin was developed by upgrading DAP with post-hydrolysis. The results showed that lignocellulose after mild DAP (175 °C, acid dosage of 15 mg/g dry material) obtained higher xylan recovery and lower inhibitors than that of general DAP. Subsequently, post-hydrolysis, simultaneous saccharification and ethanol fermentation were performed at solids loading of 20 wt% without detoxification and sterilization, resulting in xylose and ethanol yield of 71.8 % and 67.6 %. The fractionated lignin presented more reactive β-aryl ether linkages and less condensation than that from DAP. 66 % of lignocellulose carbon was recovered as ethanol, xylose and reactive lignin. This upgrading biorefinery strategy provided an easy-to-operate process for integrated utilization of lignocellulose.
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Affiliation(s)
- Hanqi Gu
- Department of Biology and Food Science, Hebei Normal University for Nationalities, Chengde, Hebei 067000, China; Key Laboratory of Botany (Hebei Normal University for Nationalities) State Ethnic Affairs Commission, Chengde, Hebei 067000, China; State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Xushen Han
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jian Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jie Bao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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40
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Kwon HJ, Lee J, Kwon SJ, Lee HS. Development of a genetic engineering toolbox for syngas-utilizing acetogen Clostridium sp. AWRP. Microb Cell Fact 2024; 23:6. [PMID: 38172811 PMCID: PMC10763472 DOI: 10.1186/s12934-023-02272-2] [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: 07/28/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Clostridium sp. AWRP (AWRP) is a novel acetogenic bacterium isolated under high partial pressure of carbon monoxide (CO) and can be one of promising candidates for alcohol production from carbon oxides. Compared to model strains such as C. ljungdahlii and C. autoethanogenum, however, genetic manipulation of AWRP has not been established, preventing studies on its physiological characteristics and metabolic engineering. RESULTS We were able to demonstrate the genetic domestication of AWRP, including transformation of shuttle plasmids, promoter characterization, and genome editing. From the conjugation experiment with E. coli S17-1, among the four replicons tested (pCB102, pAMβ1, pIP404, and pIM13), three replicated in AWRP but pCB102 was the only one that could be transferred by electroporation. DNA methylation in E. coli significantly influenced transformation efficiencies in AWRP: the highest transformation efficiencies (102-103 CFU/µg) were achieved with unmethylated plasmid DNA. Determination of strengths of several clostridial promoters enabled the establishment of a CRISPR/Cas12a genome editing system based on Acidaminococcus sp. BV3L6 cas12a gene; interestingly, the commonly used CRISPR/Cas9 system did not work in AWRP, although it expressed the weakest promoter (C. acetobutylicum Pptb) tested. This system was successfully employed for the single gene deletion (xylB and pyrE) and double deletion of two prophage gene clusters. CONCLUSIONS The presented genome editing system allowed us to achieve several genome manipulations, including double deletion of two large prophage groups. The genetic toolbox developed in this study will offer a chance for deeper studies on Clostridium sp. AWRP for syngas fermentation and carbon dioxide (CO2) sequestration.
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Affiliation(s)
- Hae Jun Kwon
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
| | - Joungmin Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, Republic of Korea.
| | - Soo Jae Kwon
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, Republic of Korea
- KIOST School, University of Science and Technology, Busan, Republic of Korea
| | - Hyun Sook Lee
- Marine Biotechnology Research Center, Korea Institute of Ocean Science and Technology, Busan, Republic of Korea.
- KIOST School, University of Science and Technology, Busan, Republic of Korea.
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41
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Zhao ZM, Liu ZH, Zhang T, Meng R, Gong Z, Li Y, Hu J, Ragauskas AJ, Li BZ, Yuan YJ. Unleashing the capacity of Rhodococcus for converting lignin into lipids. Biotechnol Adv 2024; 70:108274. [PMID: 37913947 DOI: 10.1016/j.biotechadv.2023.108274] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 09/11/2023] [Accepted: 10/22/2023] [Indexed: 11/03/2023]
Abstract
Bioconversion of bioresources/wastes (e.g., lignin, chemical pulping byproducts) represents a promising approach for developing a bioeconomy to help address growing energy and materials demands. Rhodococcus, a promising microbial strain, utilizes numerous carbon sources to produce lipids, which are precursors for synthesizing biodiesel and aviation fuels. However, compared to chemical conversion, bioconversion involves living cells, which is a more complex system that needs further understanding and upgrading. Various wastes amenable to bioconversion are reviewed herein to highlight the potential of Rhodococci for producing lipid-derived bioproducts. In light of the abundant availability of these substrates, Rhodococcus' metabolic pathways converting them to lipids are analyzed from a "beginning-to-end" view. Based on an in-depth understanding of microbial metabolic routes, genetic modifications of Rhodococcus by employing emerging tools (e.g., multiplex genome editing, biosensors, and genome-scale metabolic models) are presented for promoting the bioconversion. Co-solvent enhanced lignocellulose fractionation (CELF) strategy facilitates the generation of a lignin-derived aromatic stream suitable for the Rhodococcus' utilization. Novel alkali sterilization (AS) and elimination of thermal sterilization (ETS) approaches can significantly enhance the bioaccessibility of lignin and its derived aromatics in aqueous fermentation media, which promotes lipid titer significantly. In order to achieve value-added utilization of lignin, biodiesel and aviation fuel synthesis from lignin and lipids are further discussed. The possible directions for unleashing the capacity of Rhodococcus through synergistically modifying microbial strains, substrates, and fermentation processes are proposed toward a sustainable biological lignin valorization.
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Affiliation(s)
- Zhi-Min Zhao
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, United States; Key Laboratory of Ecology and Resource Use of the Mongolian Plateau (Ministry of Education), School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Zhi-Hua Liu
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Tongtong Zhang
- Key Laboratory of Ecology and Resource Use of the Mongolian Plateau (Ministry of Education), School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Rongqian Meng
- Key Laboratory of Ecology and Resource Use of the Mongolian Plateau (Ministry of Education), School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Zhiqun Gong
- Key Laboratory of Ecology and Resource Use of the Mongolian Plateau (Ministry of Education), School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Yibing Li
- Key Laboratory of Ecology and Resource Use of the Mongolian Plateau (Ministry of Education), School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Jing Hu
- Key Laboratory of Ecology and Resource Use of the Mongolian Plateau (Ministry of Education), School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Arthur J Ragauskas
- Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN 37996, United States; Joint Institute of Biological Science, Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, United States; Department of Forestry, Wildlife, and Fisheries, Center for Renewable Carbon, University of Tennessee Institute of Agriculture, Knoxville, TN 37996, United States.
| | - Bing-Zhi Li
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.
| | - Ying-Jin Yuan
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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Zhai Q, Yang S, Zhao S, Hu J, Lu Y, Zhang X. Fractionation of poplar wood with different acid hydrotropes: Lignin dissolution behavior and mechanism evaluation. Int J Biol Macromol 2023; 253:126696. [PMID: 37673170 DOI: 10.1016/j.ijbiomac.2023.126696] [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: 07/03/2023] [Revised: 08/29/2023] [Accepted: 09/02/2023] [Indexed: 09/08/2023]
Abstract
Acid hydrotropes was considered a green medium for efficient wood fractionation at mild conditions. This study reported a comparative study on the dissolution of lignin in different acid hydrotropes, including p-toluenesulfonic acid (p-TsOH), 4-hydroxybenzenesulfonic acid (4-HSA), 5-sulfosalicylic acid (5-SSA), and maleic acid (MA). Under identical treatment conditions (80 °C, 60 min, and 70 % acid concentration), the removal of wood lignin varied significantly among four acid hydrotropes, 4-HSA exhibited the highest removal rate at 88.0 %, followed by p-TsOH at 81.2 %, 5-SSA at 51.1 %, and MA at 26.2 %. The molecular mechanism of the lignin dissolution was analyzed by quantum chemistry (QC) calculation and molecular dynamics (MD) simulation. The higher absorb free energy (E(absorb)) of the 4-HSA and veratrylglycerol-β-guaiacyl ether (VG) complex (E(absorb) = 17.97 kcal/mol), and the p-TsOH and VG complex (E(absorb) = 17.16 kcal/mol) contributed to a higher efficiency of lignin dissolution. Under the same level of lignin removal (~ 60 %), the four acid hydrotropes showed variations in the β-O-4 content of the extracted lignin: 4-HSA (3.1 %) < 5-SSA (10.4 %) < p-TsOH (15.9 %) < MA (63.7 %). The acidity and critical aggregation concentrations of acid hydrotropes were found to influence the content of β-O-4 bonds in the extracted lignin.
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Affiliation(s)
- Qiaolong Zhai
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China.
| | - Shaoqi Yang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Shuheng Zhao
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Jianjun Hu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China
| | - Yanju Lu
- College of Chemical Engineering, Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, International Innovation Highland of Forest Products Chemistry and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaolei Zhang
- Department of Chemical and Process Engineering, University of Strathclyde, Glasgow G1 1XJ, UK
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43
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Gu NX, Palumbo CT, Bleem AC, Sullivan KP, Haugen SJ, Woodworth SP, Ramirez KJ, Kenny JK, Stanley LD, Katahira R, Stahl SS, Beckham GT. Autoxidation Catalysis for Carbon-Carbon Bond Cleavage in Lignin. ACS CENTRAL SCIENCE 2023; 9:2277-2285. [PMID: 38161372 PMCID: PMC10755848 DOI: 10.1021/acscentsci.3c00813] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 10/29/2023] [Accepted: 10/30/2023] [Indexed: 01/03/2024]
Abstract
Selective lignin depolymerization is a key step in lignin valorization to value-added products, and there are multiple catalytic methods to cleave labile aryl-ether bonds in lignin. However, the overall aromatic monomer yield is inherently limited by refractory carbon-carbon linkages, which are abundant in lignin and remain intact during most selective lignin deconstruction processes. In this work, we demonstrate that a Co/Mn/Br-based catalytic autoxidation method promotes carbon-carbon bond cleavage in acetylated lignin oligomers produced from reductive catalytic fractionation. The oxidation products include acetyl vanillic acid and acetyl vanillin, which are ideal substrates for bioconversion. Using an engineered strain of Pseudomonas putida, we demonstrate the conversion of these aromatic monomers to cis,cis-muconic acid. Overall, this study demonstrates that autoxidation enables higher yields of bioavailable aromatic monomers, exceeding the limits set by ether-bond cleavage alone.
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Affiliation(s)
- Nina X. Gu
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Chad T. Palumbo
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Alissa C. Bleem
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Kevin P. Sullivan
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Stefan J. Haugen
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Sean P. Woodworth
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Kelsey J. Ramirez
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Jacob K. Kenny
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
- Department
of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Lisa D. Stanley
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Rui Katahira
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Shannon S. Stahl
- Department
of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United
States
| | - Gregg T. Beckham
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
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Zhang B, Meng Q, Liu H, Han B. Catalytic Conversion of Lignin into Valuable Chemicals: Full Utilization of Aromatic Nuclei and Side Chains. Acc Chem Res 2023; 56:3558-3571. [PMID: 38029298 DOI: 10.1021/acs.accounts.3c00514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
ConspectusIn recent years, significant efforts have been directed toward achieving efficient and mild lignocellulosic biomass conversion into valuable chemicals and fuels, aiming to address energy and environmental concerns and realize the goal of carbon neutrality. Lignin is one of the three primary building blocks of lignocellulose and the only aromatic renewable feedstock. However, the complex and diverse nature of lignin feedstocks, characterized by their three-dimensional, highly branched polymeric structure and intricate C-O/C-C chemical bonds, results in substantial challenges. To tackle these challenges, we carried out extensive research on selectively activating and transforming chemical bonds in lignin for chemical synthesis. In this Account, we discuss our recent progress in catalytic lignin conversion.Our work is focused on two main objectives: (i) achieving precise and selective transformation of C-O/C-C bonds in lignin (and its model compounds) and (ii) fully utilizing the aromatic nuclei and side chains present in lignin to produce valuable chemicals. Lignin consists of interconnected phenylpropanoid subunits linked by interlaced C-C/C-O bonds. To unlock the full potential of lignin, we propose the concept of "the full utilization of lignin", which encompasses both the aromatic nuclei and the side chains (e.g., methoxyl and polyhydroxypropyl groups).For the conversion of aromatic nuclei, selective activation of C-O and/or C-C bonds is crucial in synthesizing targeted aromatic products. We begin with model compounds (such as anisole, phenol, guaiacol, etc.) and then transition to protolignin feedstocks. Various reaction routes are developed, including self-supported hydrogenolysis, direct Caryl-Csp3 cleavage, coupled Caryl-Csp3 cleavage and Caryl-O hydrogenolysis, and tandem selective hydrogenation and hydrolysis processes. These tailored pathways enable high-yield and sustainable production of a wide range of aromatic (and derived) products, including arenes (benzene, toluene, alkylbenzenes), phenols, ketones, and acids.In terms of side chain utilization, we have developed innovative strategies such as selective methyl transfer, coupling depolymerization-methyl shift, selective acetyl utilization, and new activation methods such as amine-assisted prefunctionalization. These strategies enable the direct synthesis of methyl-/alkyl-derived products, such as acetic acid, 4-ethyltoluene, dimethylethylamine, and amides. Additionally, aromatic residues can be transformed into chemicals or functionalized ingredients that can serve as catalysts or functional biopolymer materials. These findings highlight promising opportunities for harnessing both the aromatic nuclei and side chains of lignin in a creative manner, thereby improving the overall atom economy of lignin upgrading.Through innovative catalyst engineering and reaction route strategies, our work achieves the sustainable and efficient production of various valuable chemicals from lignin. By integrating side chains and aromatic rings, we have successfully synthesized methyl-/alkyl-derived and aromatic-derived products with high yields. The full utilization of lignin not only minimizes waste but also opens up new possibilities for generating chemical products from lignin. These novel approaches unlock the untapped potential of lignin, expand the boundaries of lignin upgrading, and enhance the efficiency and economic viability of lignin biorefining.
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Affiliation(s)
- Bin Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qinglei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Huizhen Liu
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences, CAS Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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45
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Deng Z, Mu Y, Chen Z, Yan L, Ju X, Li L. Construction of a xylose metabolic pathway in Trichosporonoides oedocephalis ATCC 16958 for the production of erythritol and xylitol. Biotechnol Lett 2023; 45:1529-1539. [PMID: 37831286 DOI: 10.1007/s10529-023-03428-1] [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: 03/27/2023] [Revised: 05/18/2023] [Accepted: 07/15/2023] [Indexed: 10/14/2023]
Abstract
PURPOSE Erythritol is a valuable compound as sweetener and chemical material however cannot be fermented from the abundant substrate xylose. METHODS The strain Trichosporonoides oedocephalis ATCC 16958 was employed to produce polyols including xylitol and erythritol by metabolic engineering approaches. RESULTS The introduction of a substrate-specific ribose-5-phosphate isomerase endowed T. oedocephalis with xylose-assimilation activity to produce xylitol, and eliminated glycerol production simultaneously. A more value-added product, erythritol was produced by further introducing a homologous xylulose kinase. The carbon flux was redirected from xylitol to erythritol by adding high osmotic pressure. The production of erythritol was improved to 46.5 g/L in flasks by fermentation adjustment, and the process was scaled up in a 5-L fermentor, with a 40 g/L erythritol production after 120 h, and a time-space yield of 0.56 g/L/h. CONCLUSION This study demonstrated the potential of T. oedocephalis in the synthesis of multiple useful products from xylose.
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Affiliation(s)
- Zhou Deng
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, No. 99 Xuefu Rd., Huqiu District, Suzhou, 215009, Jiangsu, People's Republic of China
| | - Yinghui Mu
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, No. 99 Xuefu Rd., Huqiu District, Suzhou, 215009, Jiangsu, People's Republic of China
| | - Zhi Chen
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, No. 99 Xuefu Rd., Huqiu District, Suzhou, 215009, Jiangsu, People's Republic of China
| | - Lishi Yan
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, No. 99 Xuefu Rd., Huqiu District, Suzhou, 215009, Jiangsu, People's Republic of China
| | - Xin Ju
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, No. 99 Xuefu Rd., Huqiu District, Suzhou, 215009, Jiangsu, People's Republic of China.
| | - Liangzhi Li
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, No. 99 Xuefu Rd., Huqiu District, Suzhou, 215009, Jiangsu, People's Republic of China.
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Heo JB, Lee YS, Chung CH. Marine plant-based biorefinery for sustainable 2,5-furandicarboxylic acid production: A review. BIORESOURCE TECHNOLOGY 2023; 390:129817. [PMID: 37839644 DOI: 10.1016/j.biortech.2023.129817] [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: 08/27/2023] [Revised: 09/30/2023] [Accepted: 09/30/2023] [Indexed: 10/17/2023]
Abstract
Marine plants, including macroalgae and seagrass, show promise as biorenewable feedstocks for sustainable chemical manufacturing. This study explores their potential in producing 2,5-furandicarboxylic acid (FDCA), a versatile platform chemical for commodity polymers. FDCA-based polyethylene 2,5-furandicarboxylate offers a sustainable alternative to petroleum-derived polyethylene terephthalate, commonly used in plastic bottles. Our research pioneers the concept of a marine plant-based FDCA biorefinery, introducing innovative approaches for sustainability and cost-effectiveness. This review outlines the use of ionic liquid-based solvents (ILS) and deep eutectic solvent (DES) systems in FDCA production. Additionally, we propose biomodification strategies involving target enzyme-encoding genes to enhance the depolymerization of non-structural storage glucans in marine plants. Our findings pave the way for eco-friendly biorefineries and biorenewable plastics.
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Affiliation(s)
- Jae Bok Heo
- Department of Molecular Genetic Biotechnology, Dong-A University, Busan, South Korea
| | - Yong-Suk Lee
- Research Institute for Basic Sciences, Pukyong National University, Busan 48513, South Korea
| | - Chung-Han Chung
- Department of Biotechnology, Dong-A University, Busan, South Korea.
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Chen Z, Chen L, Khoo KS, Gupta VK, Sharma M, Show PL, Yap PS. Exploitation of lignocellulosic-based biomass biorefinery: A critical review of renewable bioresource, sustainability and economic views. Biotechnol Adv 2023; 69:108265. [PMID: 37783293 DOI: 10.1016/j.biotechadv.2023.108265] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/25/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023]
Abstract
Urbanization has driven the demand for fossil fuels, however, the overly exploited resource has caused severe damage on environmental pollution. Biorefining using abundant lignocellulosic biomass is an emerging strategy to replace traditional fossil fuels. Value-added lignin biomass reduces the waste pollution in the environment and provides a green path of conversion to obtain renewable resources. The technology is designed to produce biofuels, biomaterials and value-added products from lignocellulosic biomass. In the biorefinery process, the pretreatment step is required to reduce the recalcitrant structure of lignocellulose biomass and improve the enzymatic digestion. There is still a gap in the full and deep understanding of the biorefinery process including the pretreatment process, thus it is necessary to provide optimized and adapted biorefinery solutions to cope with the conversion process in different biorefineries to further provide efficiency in industrial applications. Current research progress on value-added applications of lignocellulosic biomass still stagnates at the biofuel phase, and there is a lack of comprehensive discussion of emerging potential applications. This review article explores the advantages, disadvantages and properties of pretreatment methods including physical, chemical, physico-chemical and biological pretreatment methods. Value-added bioproducts produced from lignocellulosic biomass were comprehensively evaluated in terms of encompassing biochemical products , cosmetics, pharmaceuticals, potent functional materials from cellulose and lignin, waste management alternatives, multifunctional carbon materials and eco-friendly products. This review article critically identifies research-related to sustainability of lignocellulosic biomass to promote the development of green chemistry and to facilitate the refinement of high-value, environmentally-friendly materials. In addition, to align commercialized practice of lignocellulosic biomass application towards the 21st century, this paper provides a comprehensive analysis of lignocellulosic biomass biorefining and the utilization of biorefinery green technologies is further analyzed as being considered sustainable, including having potential benefits in terms of environmental, economic and social impacts. This facilitates sustainability options for biorefinery processes by providing policy makers with intuitive evaluation and guidance.
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Affiliation(s)
- Zhonghao Chen
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China
| | - Lin Chen
- School of Civil Engineering, Chongqing University, Chongqing 400045, China; Key Laboratory of New Technology for Construction of Cities in Mountain Area, Ministry of Education, Chongqing University, Chongqing 400045, China
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Science, Yuan Ze University, Taoyuan, Taiwan; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam 603103, Tamil Nadu, India.
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Centre, SRUC, Barony Campus, Parkgate, Dumfries DG1 3NE, United Kingdom.
| | | | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates
| | - Pow-Seng Yap
- Department of Civil Engineering, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China.
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48
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Ma Y, Conroy S, Shaw A, Alliati IM, Sels BF, Zhang X, Tu X. Plasma-Enabled Selective Synthesis of Biobased Phenolics from Lignin-Derived Feedstock. JACS AU 2023; 3:3101-3110. [PMID: 38034967 PMCID: PMC10685411 DOI: 10.1021/jacsau.3c00468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/08/2023] [Accepted: 10/12/2023] [Indexed: 12/02/2023]
Abstract
Converting abundant biomass-derived feedstocks into value-added platform chemicals has attracted increasing interest in biorefinery; however, the rigorous operating conditions that are required limit the commercialization of these processes. Nonthermal plasma-based electrification using intermittent renewable energy is an emerging alternative for sustainable next-generation chemical synthesis under mild conditions. Here, we report a hydrogen-free tunable plasma process for the selective conversion of lignin-derived anisole into phenolics with a high selectivity of 86.9% and an anisole conversion of 45.6% at 150 °C. The selectivity to alkylated chemicals can be tuned through control of the plasma alkylation process by changing specific energy input. The combined experimental and computational results reveal that the plasma generated H and CH3 radicals exhibit a "catalytic effect" that reduces the activation energy of the transalkylation reactions, enabling the selective anisole conversion at low temperatures. This work opens the way for the sustainable and selective production of phenolic chemicals from biomass-derived feedstocks under mild conditions.
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Affiliation(s)
- Yichen Ma
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
| | - Stuart Conroy
- Department
of Chemical and Process Engineering, University
of Strathclyde, Glasgow G1 1XJ, U.K.
| | - Alexander Shaw
- School
of Mechanical and Aerospace Engineering, Queen’s University Belfast, Belfast BT9 5AG, U.K.
| | - Ignacio M. Alliati
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
| | - Bert F. Sels
- Center
for Sustainable Catalysis and Engineering, KU Leuven, Leuven 3001, Belgium
| | - Xiaolei Zhang
- Department
of Chemical and Process Engineering, University
of Strathclyde, Glasgow G1 1XJ, U.K.
- School
of Mechanical and Aerospace Engineering, Queen’s University Belfast, Belfast BT9 5AG, U.K.
| | - Xin Tu
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, U.K.
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49
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Guo Y, Alvigini L, Saifuddin M, Ashley B, Trajkovic M, Alonso-Cotchico L, Mattevi A, Fraaije MW. One-Pot Biocatalytic Synthesis of rac-Syringaresinol from a Lignin-Derived Phenol. ACS Catal 2023; 13:14639-14649. [PMID: 38026814 PMCID: PMC10660655 DOI: 10.1021/acscatal.3c04399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023]
Abstract
The drive for a circular bioeconomy has resulted in a great demand for renewable, biobased chemicals. We present a one-pot biocatalytic cascade reaction for the production of racemic syringaresinol, a lignan with applications as a nutraceutical and in polymer chemistry. The process consumes dihydrosinapyl alcohol, which can be produced renewably from the lignocellulosic material. To achieve this, a variant of eugenol oxidase was engineered for the oxidation of dihydrosinapyl alcohol into sinapyl alcohol with good conversion and chemoselectivity. The crystal structure of the engineered oxidase revealed the molecular basis of the influence of the mutations on the chemoselectivity of the oxidation of dihydrosinapyl alcohol. By using horseradish peroxidase, the subsequent oxidative dimerization of sinapyl alcohol into syringaresinol was achieved. Conditions for the one-pot, two-enzyme synthesis were optimized, and a high yield of syringaresinol was achieved by cascading the oxidase and peroxidase steps in a stepwise fashion. This study demonstrates the efficient production of syringaresinol from a compound that can be renewed by reductive catalytic fractionation of lignocellulose, providing a biocatalytic route for generating a valuable compound from lignin.
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Affiliation(s)
- Yiming Guo
- Molecular
Enzymology Group, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The Netherlands
| | - Laura Alvigini
- Department
of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Ferrata 9, Pavia 27100, Italy
| | - Mohammad Saifuddin
- Molecular
Enzymology Group, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The Netherlands
| | - Ben Ashley
- Molecular
Enzymology Group, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The Netherlands
| | - Milos Trajkovic
- Molecular
Enzymology Group, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The Netherlands
| | | | - Andrea Mattevi
- Department
of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Via Ferrata 9, Pavia 27100, Italy
| | - Marco W. Fraaije
- Molecular
Enzymology Group, University of Groningen, Nijenborgh 4, Groningen, AG 9747, The Netherlands
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50
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Peng T, Zhang W, Liang B, Lian G, Zhang Y, Zhao W. Electrocatalytic valorization of lignocellulose-derived aromatics at industrial-scale current densities. Nat Commun 2023; 14:7229. [PMID: 37945615 PMCID: PMC10636212 DOI: 10.1038/s41467-023-43136-y] [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] [Received: 01/14/2023] [Accepted: 10/31/2023] [Indexed: 11/12/2023] Open
Abstract
Electrocatalytic hydrogenation of lignocellulosic bio-oil to value-added chemicals offers an attractive avenue to use the increasing intermittent renewable electricity and biomass-derived feedstocks. However, to date the partial current densities to target products of these reactions are lower than those needed for industrial-scale productivity, which limits its prospects. Here we report a flow-cell system equipped with a Rh diffusion electrode to hydrogenate lignocellulose-derived aromatic monomers, such as furans and lignin monomers, to value-added chemicals. We achieve high faradaic efficiencies up to 64% at industrial-scale current densities of 300-500 mA cm-2, representing high productivities to target products. A screening of electrocatalysts indicates that only by highly-electrolyte-permeable Rh diffusion electrodes are we able to unite current density with faradaic efficiency. We apply in-situ infrared reflection-absorption spectroscopy to investigate the electrode-potential-dependent reaction pathways and intermediates, confirming a wide potential window for efficient electrocatalytic hydrogenation of lignocellulose-derived aromatics to target products.
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Affiliation(s)
- Tao Peng
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China
| | - Wenbin Zhang
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China
| | - Baiyao Liang
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China
| | - Guanwu Lian
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China
| | - Yun Zhang
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China
| | - Wei Zhao
- Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong, China.
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