1
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Czerwiec Q, Chabbert B, Crônier D, Kurek B, Rakotoarivonina H. Combined hemicellulolytic and phenoloxidase activities of Thermobacillus xylanilyticus enable growth on lignin-rich substrates and the release of phenolic molecules. BIORESOURCE TECHNOLOGY 2024; 397:130507. [PMID: 38423483 DOI: 10.1016/j.biortech.2024.130507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
Major challenge in biorefineries is the use of all lignocellulosic components, particularly lignins. In this study, Thermobacillus xylanilyliticus grew on kraft lignin, steam-exploded and native wheat straws produced different sets of phenoloxidases and xylanases, according to the substrate. After growth, limited lignin structural modifications, mainly accompanied by a decrease in phenolic acids was observed by Nuclear Magnetic Resonance spectroscopy. The depletion of p-coumaric acid, vanillin and p-hydroxybenzaldehyde combined to vanillin production in the culture media indicated that the bacterium can transform some phenolic compounds. Proteomic approaches allowed the identification of 29 to 33 different hemicellulases according to the substrates. Twenty oxidoreductases were differentially expressed between kraft lignin and steam-exploded wheat straw. These oxidoreductases may be involved in lignin and aromatic compound utilization and detoxification. This study highlights the potential value of Thermobacillus xylanilyticus and its enzymes in the simultaneous valorization of hemicellulose and phenolic compounds from lignocelluloses.
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Affiliation(s)
- Quentin Czerwiec
- Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, Reims, France; Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, AFERE, Reims, France.
| | - Brigitte Chabbert
- Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, Reims, France.
| | - David Crônier
- Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, Reims, France.
| | - Bernard Kurek
- Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, Reims, France.
| | - Harivony Rakotoarivonina
- Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, Reims, France; Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, AFERE, Reims, France.
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2
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Bugg TDH. The chemical logic of enzymatic lignin degradation. Chem Commun (Camb) 2024; 60:804-814. [PMID: 38165282 PMCID: PMC10795516 DOI: 10.1039/d3cc05298b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Lignin is an aromatic heteropolymer, found in plant cell walls as 20-30% of lignocellulose. It represents the most abundant source of renewable aromatic carbon in the biosphere, hence, if it could be depolymerised efficiently, then it would be a highly valuable source of renewable aromatic chemicals. However, lignin presents a number of difficulties for biocatalytic or chemocatalytic breakdown. Research over the last 10 years has led to the identification of new bacterial enzymes for lignin degradation, and the use of metabolic engineering to generate useful bioproducts from microbial lignin degradation. The aim of this article is to discuss the chemical mechanisms used by lignin-degrading enzymes and microbes to break down lignin, and to describe current methods for generating aromatic bioproducts from lignin using enzymes and engineered microbes.
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Affiliation(s)
- Timothy D H Bugg
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
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3
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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: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [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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4
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Yu N, An ZW, Zhang JL, Cheng BX, Ye K, Wang S, Wu W, Li RKY, Tan X, Zhao H. Recent Advances in Tailored Fabrication and Properties of Biobased Self-Healing Polyurethane. Biomacromolecules 2023; 24:4605-4621. [PMID: 37917193 DOI: 10.1021/acs.biomac.3c00805] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
With the emergence of challenges in the environmental degradation and resource scarcity fields, the research of biobased self-healing polyurethane (BSPU) has become a prevailing trend in the technology of the polyurethane industry and a promising direction for developing biomass resources. Here, the production of BSPU from lignocellulose, vegetable oil, chitosan, collagen, and coumarin is classified, and the principles of designing polyurethane based on compelling examples using the latest methods and current research are summarized. Moreover, the impact of biomass materials on self-healing and mechanical properties, as well as the tailored performance method, are presented in detail. Finally, the applications of BSPU in biomedicine, sensors, coatings, etc. are also summarized, and the possible challenges and development prospects are explored to helpfully make progress in the development of BSPU. These findings demonstrate valuable references and practical significance for future BSPU research.
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Affiliation(s)
- Ning Yu
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Ze-Wei An
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Jia-Le Zhang
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Bing-Xu Cheng
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Kang Ye
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Shuangfei Wang
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Wei Wu
- Jihua Laboratory, Foshan, 528200, China
| | - Robert K Y Li
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Xuecai Tan
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning, 530006, China
| | - Hui Zhao
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning, 530006, China
- State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life Science, Hubei University, Wuhan, 430062, China
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5
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Pimviriyakul P, Buttranon S, Soithongcharoen S, Supawatkon C, Disayabootr K, Watthaisong P, Tinikul R, Jaruwat A, Chaiyen P, Chitnumsub P, Maenpuen S. Structure and biochemical characterization of an extradiol 3,4-dihydroxyphenylacetate 2,3-dioxygenase from Acinetobacter baumannii. Arch Biochem Biophys 2023; 747:109768. [PMID: 37769893 DOI: 10.1016/j.abb.2023.109768] [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: 08/24/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023]
Abstract
3,4-Dihydroxyphenylacetate (DHPA) 2,3-dioxygenase (EC 1.13.11.15) from Acinetobacter baumannii (AbDHPAO) is an enzyme that catalyzes the 2,3-extradiol ring-cleavage of DHPA in the p-hydroxyphenylacetate (HPA) degradation pathway. While the biochemical reactions of various DHPAOs have been reported, only structures of DHPAO from Brevibacterium fuscum and their homologs are available. Here, we report the X-ray structure and biochemical characterization of an Fe2+-specific AbDHPAO that shares 12% sequence identity to the enzyme from B. fuscum. The 1.8 Å X-ray structure of apo-AbDHPAO was determined with four subunits per asymmetric unit, consistent with a homotetrameric structure. Interestingly, the αβ-sandwiched fold of the AbDHPAO subunit is different from the dual β-barrel-like motif of the well-characterized B. fuscum DHPAO structures; instead, it is similar to the structures of non-DHPA extradiol dioxygenases from Comamonas sp. and Sphingomonas paucimobilis. Similarly, these extradiol dioxygenases share the same chemistry owing to a conserved 2-His-1-carboxylate catalytic motif. Structure analysis and molecular docking suggested that the Fe2+ cofactor and substrate binding sites consist of the conserved residues His12, His57, and Glu238 forming a 2-His-1-carboxylate motif ligating to Fe2+ and DHPA bound with Fe2+ in an octahedral coordination. In addition to DHPA, AbDHPAO can also use other 3,4-dihydroxyphenylacetate derivatives with different aliphatic carboxylic acid substituents as substrates, albeit with low reactivity. Altogether, this report provides a better understanding of the structure and biochemical properties of AbDHPAO and its homologs, which is advancing further modification of DHPAO in future applications.
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Affiliation(s)
- Panu Pimviriyakul
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
| | - Supacha Buttranon
- Department of Biochemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand; School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, 21210, Thailand
| | - Sahachat Soithongcharoen
- Department of Biochemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand; School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, 21210, Thailand
| | - Cheerapat Supawatkon
- Department of Biochemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand; School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, 21210, Thailand
| | - Kasidis Disayabootr
- Department of Biochemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand
| | - Pratchaya Watthaisong
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, 21210, Thailand
| | - Ruchanok Tinikul
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Aritsara Jaruwat
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Pimchai Chaiyen
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, 21210, Thailand
| | - Penchit Chitnumsub
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Phahonyothin road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand.
| | - Somchart Maenpuen
- Department of Biochemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand.
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6
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Song X, Chen M, Zhao Y, Zhang M, Zhang L, Zhang D, Song C, Shang X, Tan Q. Multi-stage nuclear transcriptomic insights of morphogenesis and biparental role changes in Lentinula edodes. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12624-y. [PMID: 37439832 DOI: 10.1007/s00253-023-12624-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 07/14/2023]
Abstract
Based on six offspring with different mitochondrial (M) and parental nuclear (N) genotypes, the multi-stage morphological characteristics and nuclear transcriptomes of Lentinula edodes were compared to investigate morphogenesis mechanisms during cultivation, the key reason for cultivar resistance to genotype changes, and regulation related to biparental role changes. Six offspring had specific transcriptomic data and morphological characteristics that were mainly regulated by the two parental nuclei, followed by the cytoplasm, at different growth stages. Importing a wild N genotype easily leads to failure or instability of fruiting; however, importing wild M genotypes may improve cultivars. Major facilitator superfamily (MFS) transporter genes encoding specific metabolites in spawns may play crucial roles in fruiting body formation. Pellets from submerged cultivation and spawns from sawdust substrate cultivation showed different carbon metabolic pathways, especially in secondary metabolism, degradation of lignin, cellulose and hemicellulose, and plasma membrane transport (mainly MFS). When the stage of small young pileus (SYP) was formed on the surface of the bag, the spawns inside were mainly involved in nutrient accumulation. Just broken pileus (JBP) showed a different expression of plasma membrane transporter genes related to intracellular material transport compared to SYP and showed different ribosomal proteins and cytochrome P450 functioning in protein biosynthesis and metabolism than near spreading pileus (NSP). Biparental roles mainly regulate offspring metabolism, growth, and morphogenesis by differentially expressing specific genes during different vegetative growth stages. Additionally, some genes encoding glycine-rich RNA-binding proteins, F-box, and folliculin-interacting protein repeat-containing proteins may be related to multi-stage morphogenesis. KEY POINTS: • Replacement of nuclear genotype is not suitable for cultivar breeding of L. edodes. • Some genes show a biparental role-divergent expression at mycelial growth stage. • Transcriptomic changes of some sawdust substrate cultivation stages have been elucidated.
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Affiliation(s)
- Xiaoxia Song
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Mingjie Chen
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Yan Zhao
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Meiyan Zhang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Lujun Zhang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Dang Zhang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Chunyan Song
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China.
- Department of Microbiology, College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
| | - Xiaodong Shang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
| | - Qi Tan
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai, 201403, People's Republic of China
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7
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Guo H, Zhao Y, Chang JS, Lee DJ. Lignin to value-added products: Research updates and prospects. BIORESOURCE TECHNOLOGY 2023; 384:129294. [PMID: 37311532 DOI: 10.1016/j.biortech.2023.129294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/03/2023] [Accepted: 06/06/2023] [Indexed: 06/15/2023]
Abstract
Due to the urgent need for renewable and clean energy, the efficient use of lignin is of wide interest. A comprehensive understanding of the mechanisms of lignin depolymerization and the generation of high-value products will contribute to the global control of the formation of efficient lignin utilization. This review explores the lignin value-adding process and discusses the link between lignin functional groups and value-added products. Mechanisms and characteristics of lignin depolymerization methods are presented, and challenges and prospects for future research are highlighted.
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Affiliation(s)
- Hongliang Guo
- College of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Ying Zhao
- College of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Jo-Shu Chang
- Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Chemical and Materials Engineering, Tunghai University, Taichung 407, Taiwan
| | - Duu-Jong Lee
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-li 32003, Taiwan.
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8
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Rodriguez A, Hirakawa MP, Geiselman GM, Tran-Gyamfi MB, Light YK, George A, Sale KL. Prospects for utilizing microbial consortia for lignin conversion. FRONTIERS IN CHEMICAL ENGINEERING 2023. [DOI: 10.3389/fceng.2023.1086881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Naturally occurring microbial communities are able to decompose lignocellulosic biomass through the concerted production of a myriad of enzymes that degrade its polymeric components and assimilate the resulting breakdown compounds by members of the community. This process includes the conversion of lignin, the most recalcitrant component of lignocellulosic biomass and historically the most difficult to valorize in the context of a biorefinery. Although several fundamental questions on microbial conversion of lignin remain unanswered, it is known that some fungi and bacteria produce enzymes to break, internalize, and assimilate lignin-derived molecules. The interest in developing efficient biological lignin conversion approaches has led to a better understanding of the types of enzymes and organisms that can act on different types of lignin structures, the depolymerized compounds that can be released, and the products that can be generated through microbial biosynthetic pathways. It has become clear that the discovery and implementation of native or engineered microbial consortia could be a powerful tool to facilitate conversion and valorization of this underutilized polymer. Here we review recent approaches that employ isolated or synthetic microbial communities for lignin conversion to bioproducts, including the development of methods for tracking and predicting the behavior of these consortia, the most significant challenges that have been identified, and the possibilities that remain to be explored in this field.
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9
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Vilela N, Tomazetto G, Gonçalves TA, Sodré V, Persinoti GF, Moraes EC, de Oliveira AHC, da Silva SN, Fill TP, Damasio A, Squina FM. Integrative omics analyses of the ligninolytic Rhodosporidium fluviale LM-2 disclose catabolic pathways for biobased chemical production. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:5. [PMID: 36624471 PMCID: PMC9830802 DOI: 10.1186/s13068-022-02251-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 12/18/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Lignin is an attractive alternative for producing biobased chemicals. It is the second major component of the plant cell wall and is an abundant natural source of aromatic compounds. Lignin degradation using microbial oxidative enzymes that depolymerize lignin and catabolize aromatic compounds into central metabolic intermediates is a promising strategy for lignin valorization. However, the intrinsic heterogeneity and recalcitrance of lignin severely hinder its biocatalytic conversion. In this context, examining microbial degradation systems can provide a fundamental understanding of the pathways and enzymes that are useful for lignin conversion into biotechnologically relevant compounds. RESULTS Lignin-degrading catabolism of a novel Rhodosporidium fluviale strain LM-2 was characterized using multi-omic strategies. This strain was previously isolated from a ligninolytic microbial consortium and presents a set of enzymes related to lignin depolymerization and aromatic compound catabolism. Furthermore, two catabolic routes for producing 4-vinyl guaiacol and vanillin were identified in R. fluviale LM-2. CONCLUSIONS The multi-omic analysis of R. fluviale LM-2, the first for this species, elucidated a repertoire of genes, transcripts, and secreted proteins involved in lignin degradation. This study expands the understanding of ligninolytic metabolism in a non-conventional yeast, which has the potential for future genetic manipulation. Moreover, this work unveiled critical pathways and enzymes that can be exported to other systems, including model organisms, for lignin valorization.
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Affiliation(s)
- Nathália Vilela
- grid.442238.b0000 0001 1882 0259Programa de Processos Tecnológicos e Ambientais, University of Sorocaba (UNISO), Sorocaba, Brazil ,grid.411087.b0000 0001 0723 2494Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Geizecler Tomazetto
- grid.7048.b0000 0001 1956 2722Department of Biological and Chemical Engineering (BCE), Aarhus University, 8200 Aarhus, Denmark
| | - Thiago Augusto Gonçalves
- grid.4989.c0000 0001 2348 0746Photobiocatalysis Unit—CPBL, and Biomass Transformation Lab—BTL, École Interfacultaire de Bioingénieurs, Université Libre de Bruxelles, Brussels, Belgium
| | - Victoria Sodré
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, UK
| | - Gabriela Felix Persinoti
- grid.452567.70000 0004 0445 0877Brazilian Biorenewables National Laboratory (LNBR), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Eduardo Cruz Moraes
- grid.411087.b0000 0001 0723 2494Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Arthur Henrique Cavalcante de Oliveira
- grid.11899.380000 0004 1937 0722Department of Chemistry, Faculty of Philosophy Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP Brazil
| | - Stephanie Nemesio da Silva
- grid.411087.b0000 0001 0723 2494Laboratory of Biology Chemical Microbial (LaBioQuiMi), Institute of Chemistry, University of Campinas (UNICAMP), Campinas, Brazil
| | - Taícia Pacheco Fill
- grid.411087.b0000 0001 0723 2494Laboratory of Biology Chemical Microbial (LaBioQuiMi), Institute of Chemistry, University of Campinas (UNICAMP), Campinas, Brazil
| | - André Damasio
- grid.411087.b0000 0001 0723 2494Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
| | - Fabio Marcio Squina
- grid.442238.b0000 0001 1882 0259Programa de Processos Tecnológicos e Ambientais, University of Sorocaba (UNISO), Sorocaba, Brazil
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10
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Sun S, Liu P, Ullah M. Efficient Azo Dye Biodecolorization System Using Lignin-Co-Cultured White-Rot Fungus. J Fungi (Basel) 2023; 9:jof9010091. [PMID: 36675912 PMCID: PMC9866751 DOI: 10.3390/jof9010091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/01/2023] [Accepted: 01/02/2023] [Indexed: 01/11/2023] Open
Abstract
The extensive use of azo dyes by the global textile industry induces significant environmental and human health hazards, which makes efficient remediation crucial but also challenging. Improving dye removal efficiency will benefit the development of bioremediation techniques for textile effluents. In this study, an efficient system for azo dye (Direct Red 5B, DR5B) biodecolorization is reported, which uses the white-rot fungus Ganoderma lucidum EN2 and alkali lignin. This study suggests that the decolorization of DR5B could be effectively enhanced (from 40.34% to 95.16%) within 48 h in the presence of alkali lignin. The dye adsorption test further confirmed that the alkali-lignin-enhanced decolorization of DR5B was essentially due to biodegradation rather than physical adsorption, evaluating the role of alkali lignin in the dye biodegradation system. Moreover, the gas chromatography/mass spectrometry analysis and DR5B decolorization experiments also indicated that alkali lignin carried an excellent potential for promoting dye decolorization and displayed a significant role in improving the activity of lignin-modifying enzymes. This was mainly because of the laccase-mediator system, which was established by the induced laccase activity and lignin-derived small aromatic compounds.
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Affiliation(s)
- Su Sun
- College of Urban Construction, Wuchang Shouyi University, Wuhan 430064, China
- Key Laboratory of Molecular Biophysics of MOE, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- Correspondence:
| | - Pengyang Liu
- Key Laboratory of Molecular Biophysics of MOE, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Mati Ullah
- Key Laboratory of Molecular Biophysics of MOE, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
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11
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Hu Y, Zhang C, Zou L, Zheng Z, Ouyang J. Efficient biosynthesis of pinosylvin from lignin-derived cinnamic acid by metabolic engineering of Escherichia coli. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:136. [PMID: 36503554 PMCID: PMC9743564 DOI: 10.1186/s13068-022-02236-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 12/04/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND The conversion of lignin-derived aromatic monomers into valuable chemicals has promising potential to improve the economic competitiveness of biomass biorefineries. Pinosylvin is an attractive pharmaceutical with multiple promising biological activities. RESULTS Herein, Escherichia coli was engineered to convert the lignin-derived standard model monomer cinnamic acid into pinosylvin by introducing two novel enzymes from the wood plant: stilbene synthase from Pinus pinea (PpSTS) and 4-Coumarate-CoA ligase from Populus trichocarpa (Ptr4CL4). The expression of Ptr4CL4 drastically improved the production of pinosylvin (42.5 ± 1.1 mg/L), achieving values 15.7-fold higher than that of Ptr4CL5 (another 4-Coumarate-CoA ligase from Populus trichocarpa) in the absence of cerulenin. By adjusting the expression strategy, the optimized engineered strain produced pinosylvin at 153.7 ± 2.2 mg/L with an extremely high yield of 1.20 ± 0.02 mg/mg cinnamic acid in the presence of cerulenin, which is 83.9% ± 1.17 of the theoretical yield. This is the highest reported pinosylvin yield directly from cinnamic acid to date. CONCLUSION Our work highlights the feasibility of microbial production of pinosylvin from cinnamic acid and paves the way for converting lignin-related aromatics to valuable chemicals.
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Affiliation(s)
- Yueli Hu
- grid.410625.40000 0001 2293 4910Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China ,grid.410625.40000 0001 2293 4910College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China
| | - Chen Zhang
- grid.410625.40000 0001 2293 4910College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China
| | - Lihua Zou
- grid.410625.40000 0001 2293 4910Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China ,grid.410625.40000 0001 2293 4910College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China
| | - Zhaojuan Zheng
- grid.410625.40000 0001 2293 4910Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China ,grid.410625.40000 0001 2293 4910College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China
| | - Jia Ouyang
- grid.410625.40000 0001 2293 4910Jiangsu Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China ,grid.410625.40000 0001 2293 4910College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037 People’s Republic of China
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12
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Liu ZH, Li BZ, Yuan JS, Yuan YJ. Creative biological lignin conversion routes toward lignin valorization. Trends Biotechnol 2022; 40:1550-1566. [PMID: 36270902 DOI: 10.1016/j.tibtech.2022.09.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/18/2022] [Accepted: 09/22/2022] [Indexed: 11/05/2022]
Abstract
Lignin, the largest renewable aromatic resource, is a promising alternative feedstock for the sustainable production of various chemicals, fuels, and materials. Despite this potential, lignin is characterized by heterogeneous and macromolecular structures that must be addressed. In this review, we present biological lignin conversion routes (BLCRs) that offer opportunities for overcoming these challenges, making lignin valorization feasible. Funneling heterogeneous aromatics via a 'biological funnel' offers a high-specificity bioconversion route for aromatic platform chemicals. The inherent aromaticity of lignin drives atom-economic functionalization routes toward aromatic natural product generation. By harnessing the ligninolytic capacities of specific microbial systems, powerful aromatic ring-opening routes can be developed to generate various value-added products. Thus, BLCRs hold the promise to make lignin valorization feasible and enable a lignocellulose-based bioeconomy.
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Affiliation(s)
- 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, PR China
| | - 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, PR China.
| | - Joshua S Yuan
- Department of Energy, Environmental, and Chemical Engineering, The McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - 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, PR China
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13
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Salama ES, Jeon BH, Wang J, Abou-Shanab RAI, Xiong JQ. Editorial: Microbial advances towards sustainable environment: Microbiome structure & integrated technologies. Front Microbiol 2022; 13:971696. [PMID: 35923399 PMCID: PMC9343073 DOI: 10.3389/fmicb.2022.971696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 07/01/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- El-Sayed Salama
- Department of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, China
- *Correspondence: El-Sayed Salama ;
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul, South Korea
| | - Junling Wang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - Reda A. I. Abou-Shanab
- College of Biological Sciences, BioTechnology Institute, University of Minnesota, St. Paul, MN, United States
| | - Jiu-Qiang Xiong
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
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14
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Agrawal R, Kumar A, Singh S, Sharma K. Recent advances and future perspectives of lignin biopolymers. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03068-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Harlington AC, Shearwin KE, Bell SG, Whelan F. Efficient O-demethylation of lignin monoaromatics using the peroxygenase activity of cytochrome P450 enzymes. Chem Commun (Camb) 2022; 58:13321-13324. [DOI: 10.1039/d2cc04698a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Selective O-demethylation of the lignin monoaromatics, syringol and guaiacol, using the peroxygenase activity of two distinct cytochrome P450 enzymes.
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Affiliation(s)
- Alix C. Harlington
- Department of Molecular and Biomedical Science, University of Adelaide, Adelaide, SA 5005, Australia
| | - Keith E. Shearwin
- Department of Molecular and Biomedical Science, University of Adelaide, Adelaide, SA 5005, Australia
| | - Stephen G. Bell
- Department of Chemistry, University of Adelaide, Adelaide, SA 5005, Australia
| | - Fiona Whelan
- Department of Molecular and Biomedical Science, University of Adelaide, Adelaide, SA 5005, Australia
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