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Sarangi PK, Srivastava RK, Vivekanand V, Goksen G, Sahoo UK, Thakur TK, Debeaufort F, Uysal-Unalan I, Pugazhendhi A. Recovery of green phenolic compounds from lignin-based source: Role of ferulic acid esterase towards waste valorization and bioeconomic perspectives. ENVIRONMENTAL RESEARCH 2024; 256:119218. [PMID: 38782335 DOI: 10.1016/j.envres.2024.119218] [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: 02/05/2024] [Revised: 05/08/2024] [Accepted: 05/21/2024] [Indexed: 05/25/2024]
Abstract
The production of chemicals/products so far relies on fossil-based resources with the creation of several environmental problems at the global level. In this situation, a sustainable and circular economy model is necessitated to mitigate global environmental issues. Production of biowaste from various processing industries also creates environmental issues which would be valorized for the production of industrially important reactive and bioactive compounds. Lignin acts as a vital part in biowaste composition which can be converted into a wide range of phenolic compounds. The phenolic compounds have attracted much attention, owing to their influence on diverse not only organoleptic parameters, such as taste or color, but also active agents for active packaging systems. Crop residues of varied groups, which are an affluent source of lignocellulosic biomass could serve as a renewable resource for the biosynthesis of ferulic acid (FA). FA is obtained by the FA esterase enzyme action, and it can be further converted into various tail end phenolic flavor green compounds like vanillin, vanillic acid and hydroxycinnamic acid. Lignin being renewable in nature, processing and management of biowastes towards sustainability is the need as far as the global industrial point is concerned. This review explores all the approaches for conversion of lignin into value-added phenolic compounds that could be included to packaging applications. These valorized products can exhibit the antioxidant, antimicrobial, cardioprotective, anti-inflammatory and anticancer properties, and due to these features can emerge to incorporate them into production of functional foods and be utilization of them at active food packaging application. These approaches would be an important step for utilization of the recovered bioactive compounds at the nutraceutical and food industrial sectors.
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Affiliation(s)
| | - Rajesh Kumar Srivastava
- Department of Biotechnology, GST, Gandhi Institute of Technology and Management (GITAM), Visakhapatnam, 530045, A.P., India
| | - Vivekanand Vivekanand
- Center for Energy and Environment, Malaviya National Institute of Technology Jaipur, 302 017, Rajasthan, India
| | - Gulden Goksen
- Department of Food Technology, Vocational School of Technical Sciences, Mersin Tarsus Organized Industrial Zone, Tarsus University, 33100, Mersin, Turkey
| | | | | | - Frederic Debeaufort
- Department of BioEngineering, Institute of Technology Dijon Auxerre, University of Burgundy, 7 Blvd Docteur Petitjean, 20178 Dijon Cedex, France
| | - Ilke Uysal-Unalan
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200, Aarhus N, Denmark; CiFOOD - Center for Innovative Food Research, Aarhus University, Agro Food Park 48, 8200, Aarhus N, Denmark
| | - Arivalagan Pugazhendhi
- School of Engineering, Lebanese American University, Byblos, Lebanon; Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam 603103, Tamil Nadu, India.
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Sharma G, Singh V, Raheja Y, Chadha BS. Unlocking the potential of feruloyl esterase from Myceliophthora verrucosa: a key player in efficient conversion of biorefinery-relevant pretreated rice straw. 3 Biotech 2024; 14:168. [PMID: 38828098 PMCID: PMC11139844 DOI: 10.1007/s13205-024-04013-7] [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: 02/19/2024] [Accepted: 05/21/2024] [Indexed: 06/05/2024] Open
Abstract
The lignocellulolytic accessory enzyme, Feruloyl esterase C (FE_5DR), encoded in the genome of thermotolerant Myceliophthora verrucosa was successfully cloned and heterologously expressed in Pichia pastoris. The expressed FE_5DR was purified using UNOsphere™ Q anion exchange chromatography column, exhibiting a homogeneous band of ~ 39 kDa. Its optimum temperature was determined to be 60 °C, with an optimal pH of 6.0. Additionally, the enzyme activity of FE_5DR was significantly enhanced by preincubation in a buffer containing Mg2+, Cu2+ and Ca2 metal ions. Enzyme kinetic parameters, computed from double reciprocal Lineweaver-Burk plots, yielded observed Vmax and Km values of 0.758 U/mg and 0.439 mM, respectively. Furthermore, the potential of custom-made cocktails comprising FE_5DR and benchmark cellulase derived from the developed mutant strain of Aspergillus allahabadii MAN 40, as well as the biorefinery-relevant lignocellulolytic enzyme Cellic CTec 3, resulted in improved saccharification of unwashed acid pretreated (UWAP) rice straw slurry and mild alkali deacetylated (MAD) rice straw when compared to benchmark MAN 40 and Cellic CTec 3. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-024-04013-7.
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Affiliation(s)
- Gaurav Sharma
- Department of Microbiology, Guru Nanak Dev University, Amritsar, 143005 Punjab India
| | - Varinder Singh
- Department of Microbiology, Guru Nanak Dev University, Amritsar, 143005 Punjab India
| | - Yashika Raheja
- Department of Microbiology, Guru Nanak Dev University, Amritsar, 143005 Punjab India
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Zhang S, Wang J, Liu Y, Xu Z. Multiple strategies to improve extracellular secretion and activity of feruloyl esterase. Int J Biol Macromol 2024; 269:132082. [PMID: 38705319 DOI: 10.1016/j.ijbiomac.2024.132082] [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: 11/26/2023] [Revised: 04/14/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
Feruloyl esterase has a wide range of applications, but there are still problems with low enzyme yield and activity, and complex purification steps. Our previous research found Lactobacillus amylovorus feruloyl esterase could be secreted extracellular in Escherichia coli. In this study, multiple strategies were implemented to maximize the extracellular production of feruloyl esterase with improved activity in E. coli. Firstly, codon-optimized feruloyl esterase was obtained based on the preference of E. coli, resulting in 41.97 % increase in extracellular secretion. Furthermore, by cascading T7 promoters, replacing the 5' UTR, randomly mutating the N-terminal sequence, and co-expressing secretory cofactors, the extracellular secretion was increased by 36.46 %, 31.25 %, 20.66 % and 25.75 %, respectively. Moreover, the feruloyl esterase were mutated to improve the substrate affinity and activity. The catalytic efficiency of Fae-Q134T and Fae-Q198A increased by 4.62-fold and 5.42-fold. Combining above strategies, extracellular feruloyl esterase activity was increased from 2013.70 U/L to 10,349.04 U/L. These results indicated that the activity and yield of feruloyl esterase secreted by E. coli were significantly increased, which laid a foundation for its industrial application.
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Affiliation(s)
- Susu Zhang
- College of Life Science, Shandong Normal University, Jinan 250358, PR China; Dongying Key Laboratory of Salt Tolerance Mechanism and Application of Halophytes, Dongying Institute, Shandong Normal University, Dongying 257000, PR China
| | - Jiapeng Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan 250353, PR China; Department of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan 250353, PR China
| | - Yaohan Liu
- College of Life Science, Shandong Normal University, Jinan 250358, PR China
| | - Zhenshang Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan 250353, PR China; Department of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan 250353, PR China.
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Kumar R, Næss G, Sørensen M. Xylooligosaccharides from lignocellulosic biomass and their applications as nutraceuticals: a review on their production, purification, and characterization. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38625727 DOI: 10.1002/jsfa.13523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/11/2024] [Accepted: 04/16/2024] [Indexed: 04/17/2024]
Abstract
Xylooligosaccharides (XOS) are considered a potent source of prebiotics for humans. The global prebiotic market is expanding in size, was valued at USD 6.05 billion in 2021, and is expected to grow at a 14.9% compound annual growth rate between 2022 and 2030, indicating a huge demand. These XOS are non-digestible pentose sugar oligomers comprising mainly xylose. Xylose is naturally present in the lignocellulosic biomass (LCB), fruits and vegetables. Apart from the prebiotic effect, these XOS have been reported to reduce blood cholesterol, possess antioxidant effects, increase calcium absorption, reduce colon cancer risk, and benefit diabetic patients. The primary use of XOS is reported in the feed industry followed by health, medical use, food and drinks. LCB mainly contains glucan, xylan and lignin. After glucan, xylan is the second-highest available sugar on the globe composed of xylose. Therefore, the xylan fraction of LCB has great significance in producing food, feed and energy. Glucan has been exploited for the commercial production of ethanol, xylitol, furfural, hydroxymethyl furfural and glucose. As of now, xylan has limited applications. Therefore, xylan can be exploited to convert to XOS. The production of XOS from LCB fraction not only helps to produce these at a very low price, but also helps in the reduction of greenhouse gases. Its use in food and drinks is increasing as it can be derived from the abundantly and cheaply available LCB. The article provides a review on the production, purification and characterization of XOS in view of their use as nutraceuticals. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Ravindra Kumar
- Faculty of Biosciences and Aquaculture, Nord University, Steinkjer, Norway
| | - Geir Næss
- Faculty of Biosciences and Aquaculture, Nord University, Steinkjer, Norway
| | - Mette Sørensen
- Faculty of Biosciences and Aquaculture, Nord University, Steinkjer, Norway
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Kunnummal SP, Khan M. Diet-gut microbiome interaction and ferulic acid bioavailability: implications on neurodegenerative disorders. Eur J Nutr 2024; 63:51-66. [PMID: 37747555 DOI: 10.1007/s00394-023-03247-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/01/2023] [Indexed: 09/26/2023]
Abstract
PURPOSE OF THE REVIEW Ferulic acid (FA), which occurs naturally as the feruloylated sugar ester in grains, fruits, and vegetables, is critical for combating oxidative stress and alleviating neurodegenerative diseases resulting from free radical-generated protein aggregates in brain cells. However, FA cannot be absorbed in conjugated form. Therefore, strategies to improve the bioavailability of FA are gaining more importance. Ferulic acid esterases (FAE) of the gut microbiota are critical enzymes that facilitate FA release from feruloylated sugar ester conjugates and influence systemic health. This review provides insight into a nutrition-based approach to preventing neurodegenerative disorders such as Alzheimer's and Parkinson's by altering the diversity of FAE-producing gut microbiota. RECENT FINDINGS The human gut is a niche for a highly dense microbial population. Nutrient components and the quality of food shape the gut microbiota. Microbiota-diet-host interaction primarily involves an array of enzymes that hydrolyse complex polysaccharides and release covalently attached moieties, thereby increasing their bio-accessibility. Moreover, genes encoding polysaccharide degrading enzymes are substrate inducible, giving selective microorganisms a competitive advantage in scavenging nutrients. Nutraceutical therapy using specific food components holds promise as a prophylactic agent and as an adjunctive treatment strategy in neurotherapeutics, as it results in upregulation of polysaccharide utilisation loci containing fae genes in the gut microbiota, thereby increasing the release of FA and other antioxidant molecules and combat neurodegenerative processes.
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Affiliation(s)
- Saarika Pothuvan Kunnummal
- Department of Microbiology and Fermentation Technology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India
- CSIR-Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Mahejibin Khan
- Department of Microbiology and Fermentation Technology, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India.
- CSIR-Academy of Scientific and Innovative Research, Ghaziabad, 201002, India.
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Phienluphon A, Kondo K, Mikami B, Nagata T, Katahira M. Structural insights into the molecular mechanisms of substrate recognition and hydrolysis by feruloyl esterase from Aspergillus sydowii. Int J Biol Macromol 2023; 253:127188. [PMID: 37783244 DOI: 10.1016/j.ijbiomac.2023.127188] [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: 04/23/2023] [Revised: 09/06/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
The depolymerization of lignocellulosic biomass is facilitated by feruloyl esterases (FAEs), which hydrolyze ester bonds between lignin and polysaccharides. Fungal FAEs belonging to subfamily (SF) 6 release precursors such as ferulic acid derivatives, attractive for biochemical production. Among these, Aspergillus sydowii FAE (AsFaeE), an SF6 FAE, exhibits remarkable activity across various substrates. In this study, we conducted X-ray crystallography and kinetic analysis to unravel the molecular mechanisms governing substrate recognition and catalysis by AsFaeE. AsFaeE exhibits a typical α/β-hydrolase fold, characterized by a catalytic triad of serine, aspartate, and histidine. Comparative analysis of substrate-free, ferulic acid-bound, and sinapic acid-bound forms of AsFaeE suggests a conformational change in the loop covering the substrate-binding pocket upon binding. Notably, Pro158 and Phe159 within this loop cover the phenolic part of the substrate, forming three layers of planar rings. Our structure-based functional mutagenesis clarifies the roles of the residues involved in substrate binding and catalytic activity. Furthermore, distinct substrate-binding mechanisms between AsFaeE and other studied FAEs are identified. This investigation offers the initial structural insights into substrate recognition by SF6 FAEs, equipping us with structural knowledge that might facilitate the design of FAE variants capable of efficiently processing a wider range of substrate sizes.
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Affiliation(s)
- Apisan Phienluphon
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Keiko Kondo
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Integrated Research Center for Carbon Negative Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Biomass Product Tree Industry-Academia Collaborative Research Laboratory, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Bunzo Mikami
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takashi Nagata
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Integrated Research Center for Carbon Negative Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Biomass Product Tree Industry-Academia Collaborative Research Laboratory, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
| | - Masato Katahira
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Integrated Research Center for Carbon Negative Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan; Biomass Product Tree Industry-Academia Collaborative Research Laboratory, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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7
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Du G, Wang Y, Zhang Y, Yu H, Liu S, Ma X, Cao H, Wei X, Wen B, Li Z, Fan S, Zhou H, Xin F. Structural insights into the oligomeric effects on catalytic activity of a decameric feruloyl esterase and its application in ferulic acid production. Int J Biol Macromol 2023; 253:126540. [PMID: 37634773 DOI: 10.1016/j.ijbiomac.2023.126540] [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: 05/04/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 08/29/2023]
Abstract
Oligomeric feruloyl esterase (FAE) has great application prospect in industry due to its potentially high stability and fine-tuned activity. However, the relationship between catalytic capability and oligomeric structure remains undetermined. Here we identified and characterized a novel, cold-adapted FAE (BtFae) derived from Bacteroides thetaiotaomicron. Structural studies unraveled that BtFae adopts a barrel-like decameric architecture unique in esterase families. By disrupting the interface, the monomeric variant exhibited significantly reduced catalytic activity and stability toward methyl ferulate, potentially due to its impact on the flexibility of the catalytic triad. Additionally, our results also showed that the monomerization of BtFae severely decreased the ferulic acid release from de-starched wheat bran and insoluble wheat arabinoxylan by 75 % and 80 %, respectively. Collectively, this study revealed novel connections between oligomerization and FAE catalytic function, which will benefit for further protein engineering of FAEs at the quaternary structure level for improved industrial applications.
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Affiliation(s)
- Guoming Du
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yulu Wang
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Institute of Food Science Technology Nutrition and Health (Cangzhou), Chinese Academy of Agricultural Sciences, Cangzhou 061001, China
| | - Yuebin Zhang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Haiyan Yu
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shujun Liu
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Institute of Food Science Technology Nutrition and Health (Cangzhou), Chinese Academy of Agricultural Sciences, Cangzhou 061001, China
| | - Xiaochen Ma
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Hao Cao
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xue Wei
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Boting Wen
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Institute of Food Science Technology Nutrition and Health (Cangzhou), Chinese Academy of Agricultural Sciences, Cangzhou 061001, China
| | - Zhen Li
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Institute of Food Science Technology Nutrition and Health (Cangzhou), Chinese Academy of Agricultural Sciences, Cangzhou 061001, China
| | - Shilong Fan
- Key Laboratory of Ministry of Education for Protein Science, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Huan Zhou
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Fengjiao Xin
- Laboratory of Biomanufacturing and Food Engineering, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Institute of Food Science Technology Nutrition and Health (Cangzhou), Chinese Academy of Agricultural Sciences, Cangzhou 061001, China.
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8
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Omori KK, Drucker CT, Okumura TLS, Carl NB, Dinn BT, Ly D, Sacapano KN, Tajii A, Owens CP. The structure of a Lactobacillus helveticus chlorogenic acid esterase and the dynamics of its insertion domain provide insights into substrate binding. FEBS Lett 2023; 597:2946-2962. [PMID: 37698360 DOI: 10.1002/1873-3468.14731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/31/2023] [Accepted: 08/20/2023] [Indexed: 09/13/2023]
Abstract
Chlorogenic acid esterases (ChlEs) are a useful class of enzymes that hydrolyze chlorogenic acid (CGA) into caffeic and quinic acids. ChlEs can break down CGA in foods to improve their sensory properties and release caffeic acid in the digestive system to improve the absorption of bioactive compounds. This work presents the structure, molecular dynamics, and biochemical characterization of a ChlE from Lactobacillus helveticus (Lh). Molecular dynamics simulations suggest that substrate access to the active site of LhChlE is modulated by two hairpin loops above the active site. Docking simulations and mutational analysis suggest that two residues within the loops, Gln145 and Lys164 , are important for CGA binding. Lys164 provides a slight substrate preference for CGA, whereas Gln145 is required for efficient turnover. This work is the first to examine the dynamics of a bacterial ChlE and provides insights on substrate binding preference and turnover in this type of enzyme.
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Affiliation(s)
- Kellie K Omori
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Charles T Drucker
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Tracie L S Okumura
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Nathaniel B Carl
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Brianna T Dinn
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Destiny Ly
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Kylie N Sacapano
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Allie Tajii
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
| | - Cedric P Owens
- Department of Chemistry and Biochemistry, Schmid College of Science and Technology, Chapman University, Orange, CA, USA
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Li L, Sun S, Wang M, Xiang J, Shao Y, Wu G, Zhou J, khan U, Xin Z. Improving the hydrolysis and acyltransferase activity of bifunctional feruloyl esterases DLFae4 by multiple rational predictions and directed evolution. FOOD BIOSCI 2023; 56:103140. [DOI: 10.1016/j.fbio.2023.103140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
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10
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Chatonnet A, Perochon M, Velluet E, Marchot P. The ESTHER database on alpha/beta hydrolase fold proteins - An overview of recent developments. Chem Biol Interact 2023; 383:110671. [PMID: 37582413 DOI: 10.1016/j.cbi.2023.110671] [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: 06/12/2023] [Revised: 08/01/2023] [Accepted: 08/12/2023] [Indexed: 08/17/2023]
Abstract
The ESTHER database, dedicated to ESTerases and alpha/beta-Hydrolase Enzymes and Relatives (https://bioweb.supagro.inra.fr/ESTHER/general?what=index), offers online access to a continuously updated, sequence-based classification of proteins harboring the alpha/beta hydrolase fold into families and subfamilies. In particular, the database proposes links to the sequences, structures, ligands and huge diversity of functions of these proteins, and to the related literature and other databases. Taking advantage of the promiscuity of enzymatic function, many engineered esterases, lipases, epoxide-hydrolases, haloalkane dehalogenases are used for biotechnological applications. Finding means for detoxifying those protein members that are targeted by insecticides, herbicides, antibiotics, or for reactivating human cholinesterases when inhibited by nerve gas, are still active areas of research. Using or improving the capacity of some enzymes to breakdown plastics with the aim to recycle valuable material and reduce waste is an emerging challenge. Most hydrolases in the superfamily are water-soluble and act on or are inhibited by small organic compounds, yet in a few subfamilies some members interact with other, unrelated proteins to modulate activity or trigger functional partnerships. Recent development in 3D structure prediction brought by AI-based programs now permits analysis of enzymatic mechanisms for a variety of hydrolases with no experimental 3D structure available. Finally, mutations in as many as 34 of the 120 human genes compiled in the database are now linked to genetic diseases, a feature fueling research on early detection, metabolic pathways, pharmacological treatment or enzyme replacement therapy. Here we review those developments in the database that took place over the latest decade and discuss potential new applications and recent and future expected research in the field.
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Affiliation(s)
- Arnaud Chatonnet
- DMEM, Université de Montpellier, INRAE, 34000 Montpellier, France.
| | - Michel Perochon
- DMEM, Université de Montpellier, INRAE, 34000 Montpellier, France
| | - Eric Velluet
- INRAE-AgroM / UIC, Place Viala, 34060, Montpellier, France
| | - Pascale Marchot
- CNRS / Aix-Marseille Univ, lab Architecture et Fonction des Macromolécules Biologiques, Marseille, France
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11
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Zhang Y, Feng Z, Xiang H, Zhang X, Yang L. Characterization of Feruloyl Esterase from Klebsiella oxytoca Z28 and Its Application in the Release of Ferulic Acid from De-Starching Wheat Bran. Microorganisms 2023; 11:microorganisms11040989. [PMID: 37110412 PMCID: PMC10146132 DOI: 10.3390/microorganisms11040989] [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: 03/19/2023] [Revised: 04/04/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Feruloyl esterase (EC3.1.1.73; FAE) can degrade biomass to release ferulic acid (FA), which has a high application in bioprocessing, food, pharmaceutical, paper, feed, and other industrial fields. A strain of Klebsiella oxytoca Z28 with ferulic esterase activity was screened from Daqu. In addition, the FAE gene was expressed in Escherichia coli BL21 (DE3). The enzyme consists of 340 amino acids with a molecular mass of 37.7 kDa. The FAE enzyme activity was 463 U/L when the substrate was ethyl 4-hydroxy-3-methoxycinnamate and the optimum temperature and pH were 50 °C and 8.0, respectively. The enzyme had good stability at temperatures of 25-40 °C and a pH of 8.0. Ba2+, Cu2+, Mn2+, and Ca2+ had a strong inhibitory effect on the enzyme activity, and Na+ had a promotive effect on the enzyme activity. The de-starching wheat bran was degraded by KoFAE, and the FA release was up to 227.15 µg/g. This indicated that the heterologous expression of KoFAE from Klebsiella oxytoca Z28 in E. coli had a certain potential of biodegradation, which can be applied to the degradation of agricultural waste to obtain high value-added FA products.
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Affiliation(s)
- Yao Zhang
- College of Bioengineering, Sichuan University of Science & Engineering, Yibin 644000, China
| | - Zhiping Feng
- College of Bioengineering, Sichuan University of Science & Engineering, Yibin 644000, China
- Liquor Making Bio-Technology & Application of Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Yibin 644000, China
| | - Hongzhu Xiang
- College of Bioengineering, Sichuan University of Science & Engineering, Yibin 644000, China
| | - Xian Zhang
- College of Bioengineering, Sichuan University of Science & Engineering, Yibin 644000, China
| | - Lijuan Yang
- College of Bioengineering, Sichuan University of Science & Engineering, Yibin 644000, China
- Liquor Making Bio-Technology & Application of Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Yibin 644000, China
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12
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Lin S, Hunt CJ, Holck J, Brask J, Krogh KBRM, Meyer AS, Wilkens C, Agger JW. Fungal feruloyl esterases can catalyze release of diferulic acids from complex arabinoxylan. Int J Biol Macromol 2023; 232:123365. [PMID: 36690236 DOI: 10.1016/j.ijbiomac.2023.123365] [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: 11/09/2022] [Revised: 01/10/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
Feruloyl esterases (FAEs, EC 3.1.1.73) catalyze the hydrolytic cleavage of ester bonds between feruloyl and arabinosyl moieties in arabinoxylans. Recently, we discovered that two bacterial FAEs could catalyze release of diferulic acids (diFAs) from highly substituted, cross-linked corn bran arabinoxylan. Here, we show that several fungal FAEs, notably AnFae1 (Aspergillus niger), AoFae1 (A. oryzae), and MgFae1 (Magnaporthe oryzae (also known as M. grisae)) also catalyze liberation of diFAs from complex arabinoxylan. By comparing the enzyme kinetics of diFA release to feruloyl esterase activity of the enzymes on methyl- and arabinosyl-ferulate substrates we demonstrate that the diFA release activity cannot be predicted from the activity of the enzymes on these synthetic substrates. A detailed structure-function analysis, based on AlphaFold2 modeled enzyme structures and docking with the relevant di-feruloyl ligands, reveal how distinct differences in the active site topology and surroundings may explain the diFA releasing action of the enzymes. Interestingly, the analysis also unveils that the carbohydrate binding module of the MgFae1 may play a key role in the diFA releasing ability of this enzyme. The findings contribute further understanding of the function of FAEs in the deconstruction of complex arabinoxylans and provide new opportunities for enzyme assisted upgrading of complex bran arabinoxylans.
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Affiliation(s)
- Shang Lin
- Section for Protein Chemistry and Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark
| | - Cameron J Hunt
- Section for Protein Chemistry and Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark
| | - Jesper Holck
- Section for Protein Chemistry and Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark
| | - Jesper Brask
- Novozymes A/S, Biologiens Vej 2, DK-2800 Kgs. Lyngby, Denmark
| | | | - Anne S Meyer
- Section for Protein Chemistry and Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark.
| | - Casper Wilkens
- Section for Protein Chemistry and Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark
| | - Jane W Agger
- Section for Protein Chemistry and Enzyme Technology, Department of Biotechnology and Biomedicine, Technical University of Denmark, Søltofts Plads, Building 221, DK-2800 Kgs. Lyngby, Denmark
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13
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García-Calvo L, Rodríguez-Castro R, Ullán RV, Albillos SM, Fernández-Aguado M, Vicente CM, Degnes KF, Sletta H, Barreiro C. Penicillium chrysogenum as a fungal factory for feruloyl esterases. Appl Microbiol Biotechnol 2023; 107:691-717. [PMID: 36595038 DOI: 10.1007/s00253-022-12335-w] [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: 08/24/2022] [Revised: 12/05/2022] [Accepted: 12/08/2022] [Indexed: 01/04/2023]
Abstract
Plant biomass is a promising substrate for biorefinery, as well as a source of bioactive compounds, platform chemicals, and precursors with multiple industrial applications. These applications depend on the hydrolysis of its recalcitrant structure. However, the effective biological degradation of plant cell walls requires several enzymatic groups acting synergistically, and novel enzymes are needed in order to achieve profitable industrial hydrolysis processes. In the present work, a feruloyl esterase (FAE) activity screening of Penicillium spp. strains revealed a promising candidate (Penicillium rubens Wisconsin 54-1255; previously Penicillium chrysogenum), where two FAE-ORFs were identified and subsequently overexpressed. Enzyme extracts were analyzed, confirming the presence of FAE activity in the respective gene products (PrFaeA and PrFaeB). PrFaeB-enriched enzyme extracts were used to determine the FAE activity optima (pH 5.0 and 50-55 °C) and perform proteome analysis by means of MALDI-TOF/TOF mass spectrometry. The studies were completed with the determination of other lignocellulolytic activities, an untargeted metabolite analysis, and upscaled FAE production in stirred tank reactors. The findings described in this work present P. rubens as a promising lignocellulolytic enzyme producer. KEY POINTS: • Two Penicillium rubens ORFs were first confirmed to have feruloyl esterase activity. • Overexpression of the ORFs produced a novel P. rubens strain with improved activity. • The first in-depth proteomic study of a P. rubens lignocellulolytic extract is shown.
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Affiliation(s)
- Laura García-Calvo
- INBIOTEC (Instituto de Biotecnología de León), Avda. Real 1 - Parque Científico de León, 24006, León, Spain
- Department of Biotechnology and Food Science, NTNU Norwegian University of Science and Technology, N-7491, Trondheim, Norway
| | - Raquel Rodríguez-Castro
- INBIOTEC (Instituto de Biotecnología de León), Avda. Real 1 - Parque Científico de León, 24006, León, Spain
| | - Ricardo V Ullán
- INBIOTEC (Instituto de Biotecnología de León), Avda. Real 1 - Parque Científico de León, 24006, León, Spain.
- mAbxience, Upstream Production, Parque Tecnológico de León, Julia Morros, S/N, Armunia, 24009, León, Spain.
| | - Silvia M Albillos
- Área de Bioquímica Y Biología Molecular, Departamento de Biotecnología Y Ciencia de los Alimentos, Facultad de Ciencias, Universidad de Burgos, 09001, Burgos, Spain
| | - Marta Fernández-Aguado
- INBIOTEC (Instituto de Biotecnología de León), Avda. Real 1 - Parque Científico de León, 24006, León, Spain
| | - Cláudia M Vicente
- INBIOTEC (Instituto de Biotecnología de León), Avda. Real 1 - Parque Científico de León, 24006, León, Spain
- TBI, Université de Toulouse, CNRS, INRAE, INSA, 31077, Toulouse, France
| | - Kristin F Degnes
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Richard Birkelands Vei 3 B, 7034, Trondheim, Norway
| | - Håvard Sletta
- Department of Biotechnology and Nanomedicine, SINTEF Industry, Richard Birkelands Vei 3 B, 7034, Trondheim, Norway
| | - Carlos Barreiro
- Área de Bioquímica Y Biología Molecular, Departamento de Biología Molecular, Universidad de León, Campus de Vegazana, 24007, León, Spain.
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14
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Zerva A, Siaperas R, Taxeidis G, Kyriakidi M, Vouyiouka S, Zervakis GI, Topakas E. Investigation of Abortiporus biennis lignocellulolytic toolbox, and the role of laccases in polystyrene degradation. CHEMOSPHERE 2023; 312:137338. [PMID: 36423718 DOI: 10.1016/j.chemosphere.2022.137338] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
White-rot basidiomycetes are the only microorganisms able to produce both hydrolytic (cellulases and hemicellulases) and oxidative (ligninolytic) enzymes for degrading all lignocellulose constituents. Their enzymatic machinery makes them ideal for the discovery of novel enzymes with desirable properties. In the present work, Abortiporus biennis, a white-rot fungus, was studied in regard to its lignocellulolytic potential. Secretomics and biochemical analyses were employed to study the strain's enzymatic arsenal, after growth in corn stover cultures and xylose-based defined media. The results revealed the presence of all the necessary enzymatic activities for complete breakdown of biomass, while the prominent role of oxidative enzymes in the lignocellulolytic strategy of the strain became evident. Two novel laccases, AbiLac1 and AbiLac2, were isolated from the culture supernatant with ion-exchange chromatography. Characterization of purified laccases revealed their ability to oxidize a wide variety of phenolic and non-phenolic substrates. AbiLac1 was found to oxidize polystyrene powder, showing high depolymerization potential, based on radical chain scission mechanism as evidenced by molecular weight decrease. The results of the present study demonstrate the biotechnological potential of the unexplored enzymatic machinery of white-rot basidiomycetes, including the design of improved lignocellulolytic cocktails, as well as the degradation and/or valorization of plastic waste materials.
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Affiliation(s)
- Anastasia Zerva
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, Athens, 15772, Greece
| | - Romanos Siaperas
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, Athens, 15772, Greece
| | - George Taxeidis
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, Athens, 15772, Greece
| | - Maria Kyriakidi
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, Athens, 15772, Greece
| | - Stamatina Vouyiouka
- Laboratory of Polymer Technology, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, Athens, 15772, Greece
| | - Georgios I Zervakis
- Agricultural University of Athens, Laboratory of General and Agricultural Microbiology, Iera Odos 75, 11855, Athens, Greece
| | - Evangelos Topakas
- Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, 5 Iroon Polytechniou Str., Zografou Campus, Athens, 15772, Greece.
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15
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Kasmaei KM, Kalyani DC, Reichenbach T, Jiménez-Quero A, Vilaplana F, Divne C. Crystal structure of the feruloyl esterase from Lentilactobacillus buchneri reveals a novel homodimeric state. Front Microbiol 2022; 13:1050160. [PMID: 36569051 PMCID: PMC9776664 DOI: 10.3389/fmicb.2022.1050160] [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: 09/21/2022] [Accepted: 11/15/2022] [Indexed: 12/14/2022] Open
Abstract
Ferulic acid is a common constituent of the plant cell-wall matrix where it decorates and can crosslink mainly arabinoxylans to provide structural reinforcement. Microbial feruloyl esterases (FAEs) specialize in catalyzing hydrolysis of the ester bonds between phenolic acids and sugar residues in plant cell-wall polysaccharides such as arabinoxylan to release cinnamoyl compounds. Feruloyl esterases from lactic acid bacteria (LAB) have been highlighted as interesting enzymes for their potential applications in the food and pharmaceutical industries; however, there are few studies on the activity and structure of FAEs of LAB origin. Here, we report the crystal structure and biochemical characterization of a feruloyl esterase (LbFAE) from Lentilactobacillus buchneri, a LAB strain that has been used as a silage additive. The LbFAE structure was determined in the absence and presence of product (FA) and reveals a new type of homodimer association not previously observed for fungal or bacterial FAEs. The two subunits associate to restrict access to the active site such that only single FA chains attached to arabinoxylan can be accommodated, an arrangement that excludes access to FA cross-links between arabinoxylan chains. This narrow specificity is further corroborated by the observation that no FA dimers are produced, only FA, when feruloylated arabinoxylan is used as substrate. Docking of arabinofuranosyl-ferulate in the LbFAE structure highlights the restricted active site and lends further support to our hypothesis that LbFAE is specific for single FA side chains in arabinoxylan.
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Affiliation(s)
- Kamyar Mogodiniyai Kasmaei
- Department of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology, and Health (CBH), KTH Royal Institute of Technology, Stockholm, Sweden,Department of Animal Nutrition and Management, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Dayanand C. Kalyani
- Department of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology, and Health (CBH), KTH Royal Institute of Technology, Stockholm, Sweden
| | - Tom Reichenbach
- Department of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology, and Health (CBH), KTH Royal Institute of Technology, Stockholm, Sweden
| | - Amparo Jiménez-Quero
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology, and Health (CBH), KTH Royal Institute of Technology, Stockholm, Sweden
| | - Francisco Vilaplana
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology, and Health (CBH), KTH Royal Institute of Technology, Stockholm, Sweden
| | - Christina Divne
- Department of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology, and Health (CBH), KTH Royal Institute of Technology, Stockholm, Sweden,*Correspondence: Christina Divne,
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16
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Microbial xylanolytic carbohydrate esterases. Essays Biochem 2022; 67:479-491. [PMID: 36468678 DOI: 10.1042/ebc20220129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/04/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022]
Abstract
Abstract
This article reviews microbial esterases participating in the degradation of the major plant hemicellulose, xylan. The main chain of this polysaccharide built of β-1,4-glycosidically linked xylopyranosyl residues is substituted by other sugars and also partially acetylated. Besides esters of acetic acid, there are two other types of ester linkages in plant xylans. L-Arabinofuranosyl side chains form esters with phenolic acids, predominantly with ferulic acid. The dimerization of ferulic acid residues leads to cross-links connecting the hemicellulose molecules. Ferulic acid cross-links were shown to serve as covalent linkage between lignin and hemicellulose. Another cross-linking between lignin and hemicellulose is provided by esters between the xylan side residues of glucuronic or 4-O-methyl-D-glucurononic acid and lignin alcohols. Regardless of the cross-linking, the side residues prevent xylan main chains from association that leads to crystallization similar to that of cellulose. Simultaneously, xylan decorations hamper the action of enzymes acting on the main chain. The enzymatic breakdown of plant xylan, therefore, requires a concerted action of glycanases attacking the main chain and enzymes catalyzing debranching, called accessory xylanolytic enzymes including xylanolytic esterases. While acetylxylan esterases and feruloyl esterases participate directly in xylan degradation, glucuronoyl esterases catalyze its separation from lignin. The current state of knowledge of diversity, classification and structure–function relationship of these three types of xylanolytic carbohydrate esterases is discussed with emphasis on important aspects of their future research relevant to their industrial applications.
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17
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Lo Verde C, Pepra-Ameyaw NB, Drucker CT, Okumura TLS, Lyon KA, Muniz JC, Sermet CS, Were Senger L, Owens CP. A highly active esterase from Lactobacillus helveticus hydrolyzes chlorogenic acid in sunflower meal to prevent chlorogenic acid induced greening in sunflower protein isolates. Food Res Int 2022; 162:111996. [PMID: 36461298 DOI: 10.1016/j.foodres.2022.111996] [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: 05/21/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022]
Abstract
Chlorogenic acid (CGA) is an ester between caffeic and quinic acid. It is found in many foods and reacts with free amino groups in proteins at alkaline pH, leading to the formation of an undesirable green pigment in sunflower seed-derived ingredients. This paper presents the biochemical characterization and application of a highly active chlorogenic acid esterase from Lactobacillus helveticus. The enzyme is one of the most active CGA esterases known to date with a Km of 0.090 mM and a kcat of 82.1 s-1. The CGA esterase is easily expressed recombinantly in E. coli in large yields and is stable over a wide range of pH and temperatures. We characterized CGA esterase's kinetic properties in sunflower meal and demonstrated that the enzyme completely hydrolyzes CGA in the meal. Finally, we showed that CGA esterase treatment of sunflower seed meal enables the production of pale brown sunflower protein isolates using alkaline extraction. This work will allow for more widespread use of sunflower-derived products in applications where neutrally-colored food products are desired.
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Affiliation(s)
- Christine Lo Verde
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
| | - Nana Baah Pepra-Ameyaw
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
| | - Charles T Drucker
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
| | - Tracie L S Okumura
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
| | - Katherine A Lyon
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
| | - Julia C Muniz
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
| | - Chloe S Sermet
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
| | - Lilian Were Senger
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
| | - Cedric P Owens
- Schmid College of Science and Technology, Chapman University, One University Drive, Orange CA 92866, USA.
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18
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Vega-Rodríguez MAD, Rodríguez-González JA, Armendáriz-Ruiz MA, Asaff-Torres A, Sotelo-Mundo RR, Velasco-Lozano S, Mateos-Díaz JC. Feruloyl Esterases Protein Engineering to Enhance Their Performance as Biocatalysts: A Review. Chembiochem 2022; 23:e202200354. [PMID: 35781918 DOI: 10.1002/cbic.202200354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/01/2022] [Indexed: 02/03/2023]
Abstract
Feruloyl esterases (FAEs) are versatile enzymes able to release hydroxycinnamic acids or synthesize their ester derivatives, both molecules with interesting biological activities such as: antioxidants, antifungals, antivirals, antifibrotic, anti-inflammatory, among others. The importance of these molecules in medicine, food or cosmetic industries provides FAEs with several biotechnological applications as key industrial biocatalysts. However, FAEs have some operational limitations that must be overcome, which can be addressed through different protein engineering approaches to enhance their thermal stability, catalytic efficiencies, and selectivity. This review aims to present a brief historical tour through the mutagenesis strategies employed to improve enzymes performance and analyze the current protein engineering strategies applied to FAEs as interesting biocatalysts. Finally, an outlook of the future of FAEs protein engineering approaches to achieve successful industrial biocatalysts is given.
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Affiliation(s)
- Ms Ana Daniela Vega-Rodríguez
- Unidad de Biotecnología Industrial, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Camino Arenero No. 1227 Colonia El Bajío del Arenal, 45019, Zapopan, Jalisco, Mexico
| | - Jorge Alberto Rodríguez-González
- Unidad de Biotecnología Industrial, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Camino Arenero No. 1227 Colonia El Bajío del Arenal, 45019, Zapopan, Jalisco, Mexico
| | | | - Ali Asaff-Torres
- Unidad de Biotecnología Industrial, Centro de Investigación en Alimentación y Desarrollo (CIAD), Carretera a la Victoria Km 0.6, 83304, Hermosillo, Sonora, Mexico
| | - Rogerio R Sotelo-Mundo
- Laboratorio de Estructura Biomolecular, Centro de Investigación en Alimentación y Desarrollo (CIAD), Carretera a la Victoria Km 0.6, 83304, Hermosillo, Sonora (Mexico
| | - Susana Velasco-Lozano
- Heterogeneous Biocatalysis Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Miramon Pasealekua, 182, 20014, Donostia, Spain
| | - Juan Carlos Mateos-Díaz
- Unidad de Biotecnología Industrial, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Camino Arenero No. 1227 Colonia El Bajío del Arenal, 45019, Zapopan, Jalisco, Mexico
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19
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Hou YH, Yang ZH, Wang JZ, Yang QZ. Characterization of a thermostable alkaline feruloyl esterase from Alternaria alternata and its synergism in dissolving pulp production. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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20
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The feruloyl esterase from Thermobacillus xylanilyticus shows broad specificity for processing pre-biotic feruloylated xylooligosaccharides at high temperatures. Food Chem 2022; 405:134939. [DOI: 10.1016/j.foodchem.2022.134939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
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21
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Rafeeq H, Hussain A, Shabbir S, Ali S, Bilal M, Sher F, Iqbal HMN. Esterases as emerging biocatalysts: Mechanistic insights, genomic and metagenomic, immobilization, and biotechnological applications. Biotechnol Appl Biochem 2022; 69:2176-2194. [PMID: 34699092 DOI: 10.1002/bab.2277] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/20/2021] [Indexed: 02/05/2023]
Abstract
Esterase enzymes are a family of hydrolases that catalyze the breakdown and formation of ester bonds. Esterases have gained a prominent position in today's world's industrial enzymes market. Due to their unique biocatalytic attributes, esterases contribute to environmentally sustainable design approaches, including biomass degradation, food and feed industry, dairy, clothing, agrochemical (herbicides, insecticides), bioremediation, biosensor development, anticancer, antitumor, gene therapy, and diagnostic purposes. Esterases can be isolated by a diverse range of mammalian tissues, animals, and microorganisms. The isolation of extremophilic esterases increases the interest of researchers in the extraction and utilization of these enzymes at the industrial level. Genomic, metagenomic, and immobilization techniques have opened innovative ways to extract esterases and utilize them for a longer time to take advantage of their beneficial activities. The current study discusses the types of esterases, metagenomic studies for exploring new esterases, and their biomedical applications in different industrial sectors.
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Affiliation(s)
- Hamza Rafeeq
- Department of Biochemistry, Riphah International University, Faisalabad, Pakistan
| | - Asim Hussain
- Department of Biochemistry, Riphah International University, Faisalabad, Pakistan
| | - Sumaira Shabbir
- Department of Zoology, Wildlife, and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Sabir Ali
- Department of Biochemistry, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, China
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, Mexico
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22
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Liu X, Jiang Y, Liu H, Yuan H, Huang D, Wang T. Research progress and biotechnological applications of feruloyl esterases. BIOCATAL BIOTRANSFOR 2022. [DOI: 10.1080/10242422.2022.2116277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Xuejun Liu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
- Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
| | - Yi Jiang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
- Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
| | - Hongling Liu
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
- Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
| | - Haibo Yuan
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
- Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
| | - Di Huang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
- Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
| | - Tengfei Wang
- State Key Laboratory of Biobased Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
- Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, PR China
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23
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Wang YL, Wang WK, Wu QC, Yang HJ. The release and catabolism of ferulic acid in plant cell wall by rumen microbes: A review. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2022; 9:335-344. [PMID: 35600541 PMCID: PMC9108465 DOI: 10.1016/j.aninu.2022.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 12/29/2021] [Accepted: 02/13/2022] [Indexed: 11/30/2022]
Abstract
Ferulic acid (FA) is one of the most abundant hydroxycinnamic acids in the plant world, especially in the cell wall of grain bran, in comparison with forage and crop residues. Previous studies noted that FA was mainly linked with arabinoxylans and lignin in plant cell walls in ester and ether covalent forms. After forages were ingested by ruminant animals or encountered rumen microbial fermentation in vitro, these cross-linkages form physical and chemical barriers to protect cell-wall carbohydrates from microbial attack and enzymatic hydrolysis. Additionally, increasing studies noted that FA presented some toxic effect on microbial growth in the rumen. In recent decades, many studies have addressed the relationships of ester and/or ether-linked FA with rumen nutrient digestibility, and there is still some controversy whether these linkages could be used as a predicator of forage digestibility in ruminants. The authors in this review summarized the possible relationships between ester and/or ether-linked FA and fiber digestion in ruminants. Rumen microbes, especially bacteria and fungi, were found capable of breaking down the ester linkages within plant cell walls by secreting feruloyl and p-coumaroyl esterase, resulting in the release of free FA and improvement of cell wall digestibility. The increasing evidence noted that these esterases secreted by rumen microbes presented synergistic effects with xylanase and cellulase to effectively hydrolyze forage cell walls. Some released FA were absorbed through the rumen wall directly and entered into blood circulation and presented antioxidant effects on host animals. The others were partially catabolized into volatile fatty acids by rumen microbes, and the possible catabolic pathways discussed. To better understand plant cell wall degradation in the rumen, the metabolic fate of FA along with lignin decomposition mechanisms are needed to be explored via future microbial isolation and incubation studies with aims to maximize dietary fiber intake and enhance fiber digestion in ruminant animals.
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Affiliation(s)
- Yan-Lu Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Wei-Kang Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Qi-Chao Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Hong-Jian Yang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
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Na N, Qili M, Wu N, Sun L, Xu H, Zhao Y, Wei X, Xue Y, Tao Y. Bacterial Community and Fermentation Quality of Ensiling Alfalfa With Commercial Lactic Acid Bacterial Additives. Front Microbiol 2022; 13:836899. [PMID: 35531295 PMCID: PMC9073077 DOI: 10.3389/fmicb.2022.836899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Abstract
The aim of this study was to determine the effects of six common commercial lactic acid bacteria (LAB) additives [A1, Lactobacillus plantarum, L. buchneri, and Enterococcus faecalis; A2, L. plantarum and L. casei; A3, L. plantarum and L. buchneri; A4, L. plantarum, L. buchneri, L. casei, and Pediococcus acidilactici; A5, L. plantarum (producing feruloyl esterase); and A6, L. buchneri, P. acidilactici, β-glucanase, and xylanase] on the bacterial community and fermentation quality of alfalfa silage. Alfalfa was harvested at the squaring stage, wilted in the field for 24 h, and ensiled without any additives (Control) or with A1, A2, A3, A4, A5, or A6. Microbial counts, bacterial community, fermentation parameters, and nutritional composition were determined after ensiling for 90 days. The total abundance of LAB genera on alfalfa pre-ensiling was 0.38% in bacterial community. The abundances of Lactobacillus, Enterococcus, and Pediococcus in the Control silage were 42.18, 40.18, and 8.09% of abundance, respectively. The abundances of Lactobacillus in A1-, A2-, A3-, A4-, and A5-treatments were 89.32, 92.93, 92.87, 81.12, and 80.44%, respectively. The abundances of Pediococcus and Lactobacillus in A6-treatment were 70.14 and 24.86%, respectively. Compared with Control silage, LAB-treated silage had lower pH and less ammonia nitrogen and water-soluble carbohydrates concentrations (p < 0.05). Further, the A5- and A6-treatments contained lower neutral detergent fiber, acid detergent fiber, and hemicellulose than other treatments (p < 0.05). Overall, LAB genera were presented as minor taxa in alfalfa pre-ensiling and as dominant taxa in alfalfa silage. Adding LAB additives improved the fermentation quality and altered the bacterial community of alfalfa silage. The main bacterial genera in Control silage were Lactobacillus, Enterococcus, and Pediococcus. Lactobacillus dominated the bacterial communities of A1-, A2-, A3-, A4-, and A5-treatments, while Pediococcus and Lactobacillus were dominant bacterial genera in A6-treatment. Inoculating A5 and A6 degraded the fiber in alfalfa silage. It is necessary to ensile alfalfa with LAB inoculants.
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Affiliation(s)
- Na Na
- Inner Mongolia Key Laboratory of Microbial Ecology of Silage, Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot, China
| | - Moge Qili
- Inner Mongolia Key Laboratory of Microbial Ecology of Silage, Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot, China
| | - Nier Wu
- Inner Mongolia Key Laboratory of Microbial Ecology of Silage, Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot, China
| | - Lin Sun
- Inner Mongolia Key Laboratory of Microbial Ecology of Silage, Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot, China
| | - Haiwen Xu
- College of Foreign Languages, Inner Mongolia University of Finance and Economics, Hohhot, China
| | - Yi Zhao
- Inner Mongolia Key Laboratory of Microbial Ecology of Silage, Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot, China
| | - Xiaobin Wei
- Inner Mongolia Youran Animal Husbandry Co., Ltd., Hohhot, China
| | - Yanlin Xue
- Inner Mongolia Key Laboratory of Microbial Ecology of Silage, Inner Mongolia Engineering Research Center of Development and Utilization of Microbial Resources in Silage, Inner Mongolia Academy of Agriculture and Animal Husbandry Science, Hohhot, China
- *Correspondence: Yanlin Xue,
| | - Ya Tao
- Inner Mongolia Youran Animal Husbandry Co., Ltd., Hohhot, China
- Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot, China
- Ya Tao,
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Carrillo-Díaz MI, Miranda-Romero LA, Chávez-Aguilar G, Zepeda-Batista JL, González-Reyes M, García-Casillas AC, Tirado-González DN, Tirado-Estrada G. Improvement of Ruminal Neutral Detergent Fiber Degradability by Obtaining and Using Exogenous Fibrolytic Enzymes from White-Rot Fungi. Animals (Basel) 2022; 12:ani12070843. [PMID: 35405833 PMCID: PMC8997131 DOI: 10.3390/ani12070843] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 02/06/2023] Open
Abstract
The present review examines the factors and variables that should be considered to obtain, design, and evaluate EFEs that might enhance ruminal NDF degradability. Different combinations of words were introduced in Google Scholar, then scientific articles were examined and included if the reported factors and variables addressed the objective of this review. One-hundred-and-sixteen articles were included. The fungal strains and culture media used to grow white-rot fungi induced the production of specific isoforms of cellulases and xylanases; therefore, EFE products for ruminant feed applications should be obtained in cultures that include the high-fibrous forages used in the diets of those animals. Additionally, the temperature, pH, osmolarity conditions, and EFE synergisms and interactions with ruminal microbiota and endogenous fibrolytic enzymes should be considered. More consistent results have been observed in studies that correlate the cellulase-to-xylanase ratio with ruminant productive behavior. EFE protection (immobilization) allows researchers to obtain enzymatic products that may act under ruminal pH and temperature conditions. It is possible to generate multi-enzyme cocktails that act at different times, re-associate enzymes, and simulate natural protective structures such as cellulosomes. Some EFEs could consistently improve ruminal NDF degradability if we consider fungal cultures and ruminal environmental conditions variables, and include biotechnological tools that might be useful to design novel enzymatic products.
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Affiliation(s)
- María Isabel Carrillo-Díaz
- Facultad de Medicina Veterinaria y Zootecnia, Universidad de Colima, Tecomán 8930, Colima, Mexico; (M.I.C.-D.); (J.L.Z.-B.); (A.C.G.-C.)
| | - Luis Alberto Miranda-Romero
- Posgrado en Producción Animal, Departamento de Zootecnia, Universidad Autónoma Chapingo, Texcoco 56230, Edo. México, Mexico;
| | - Griselda Chávez-Aguilar
- Centro Nacional de Investigación Disciplinaria Agricultura Familiar (CENID AF), Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Ojuelos de Jalisco 47540, Jalisco, Mexico;
| | - José Luis Zepeda-Batista
- Facultad de Medicina Veterinaria y Zootecnia, Universidad de Colima, Tecomán 8930, Colima, Mexico; (M.I.C.-D.); (J.L.Z.-B.); (A.C.G.-C.)
| | - Mónica González-Reyes
- División de Estudios de Posgrado (DEPI), Tecnológico Nacional de México Aguascalientes (TecNM)/Instituto Tecnológico El Llano Aguascalientes (ITEL), El Llano 20330, Aguascalientes, Mexico;
| | - Arturo César García-Casillas
- Facultad de Medicina Veterinaria y Zootecnia, Universidad de Colima, Tecomán 8930, Colima, Mexico; (M.I.C.-D.); (J.L.Z.-B.); (A.C.G.-C.)
| | - Deli Nazmín Tirado-González
- Departamento de Ingenierías, Tecnológico Nacional de México Aguascalientes (TecNM)/Instituto Tecnológico El Llano Aguascalientes (ITEL), El Llano 20330, Aguascalientes, Mexico
- Correspondence: (D.N.T.-G.); (G.T.-E.)
| | - Gustavo Tirado-Estrada
- División de Estudios de Posgrado (DEPI), Tecnológico Nacional de México Aguascalientes (TecNM)/Instituto Tecnológico El Llano Aguascalientes (ITEL), El Llano 20330, Aguascalientes, Mexico;
- Correspondence: (D.N.T.-G.); (G.T.-E.)
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Dilokpimol A, Verkerk B, Li X, Bellemare A, Lavallee M, Frommhagen M, Nørmølle Underlin E, Kabel MA, Powlowski J, Tsang A, de Vries RP. Screening of novel fungal Carbohydrate Esterase family 1 enzymes identifies three novel dual feruloyl/acetyl xylan esterases. FEBS Lett 2022; 596:1932-1943. [DOI: 10.1002/1873-3468.14322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Adiphol Dilokpimol
- Fungal Physiology Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology Utrecht University Uppsalalaan 8 3584 CT Utrecht The Netherlands
- Current address: Protein Production Team VTT Technical Research Center of Finland Ltd Tietotie 2 02150 Espoo Finland
| | - Bart Verkerk
- Fungal Physiology Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology Utrecht University Uppsalalaan 8 3584 CT Utrecht The Netherlands
| | - Xinxin Li
- Fungal Physiology Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology Utrecht University Uppsalalaan 8 3584 CT Utrecht The Netherlands
| | - Annie Bellemare
- Centre for Functional and Structural Genomics Concordia University Sherbrooke St. W. Montreal QC H4B 1R6 Canada
| | - Mathieu Lavallee
- Centre for Functional and Structural Genomics Concordia University Sherbrooke St. W. Montreal QC H4B 1R6 Canada
| | - Matthias Frommhagen
- Laboratory of Food Chemistry Wageningen University and Research Bornse Weilanden 9 6708 WG Wageningen The Netherlands
| | - Emilie Nørmølle Underlin
- Laboratory of Food Chemistry Wageningen University and Research Bornse Weilanden 9 6708 WG Wageningen The Netherlands
- Department of Chemistry Technical University of Denmark Building 207 Kemitorvet DK‐2800 Denmark
| | - Mirjam A. Kabel
- Laboratory of Food Chemistry Wageningen University and Research Bornse Weilanden 9 6708 WG Wageningen The Netherlands
| | - Justin Powlowski
- Centre for Functional and Structural Genomics Concordia University Sherbrooke St. W. Montreal QC H4B 1R6 Canada
| | - Adrian Tsang
- Centre for Functional and Structural Genomics Concordia University Sherbrooke St. W. Montreal QC H4B 1R6 Canada
| | - Ronald P. de Vries
- Fungal Physiology Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology Utrecht University Uppsalalaan 8 3584 CT Utrecht The Netherlands
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Fu Z, Zhu Y, Teng C, Fan G, Li X. Biochemical characterization of a novel feruloyl esterase from Burkholderia pyrrocinia B1213 and its application for hydrolyzing wheat bran. 3 Biotech 2022; 12:24. [PMID: 35036272 PMCID: PMC8695398 DOI: 10.1007/s13205-021-03066-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 11/15/2021] [Indexed: 01/03/2023] Open
Abstract
In this study, a novel feruloyl esterase (BpFae) from Burkholderia pyrrocinia B1213 was purified, biochemically characterized, and applied in releasing ferulic acid from wheat bran. The molecular mass of BpFae was approximately 60 kDa by SDS-PAGE, and the enzyme was a homomultimer in solution. BpFae displayed maximum activity at pH 4.5-5.0 and was stable at pH 3.0-7.0. The optimal temperature for BpFae was 50 °C. BpFae activity was not affected by most metal ions tested and was significantly increased by Tween-20 and Triton-100. Purified BpFae exhibited a preference for methyl ferulate (41.78 U mg-1) over methyl p-coumarate (38.51 U mg-1) and methyl caffeate (35.36 U mg-1) and had the lowest activity on methyl sinapate (1.79 U mg-1). Under the optimum conditions, the K m and V max for methyl ferulate were 0.53 mM and 86.74 U mg-1, respectively. Residues Ser209, His492, and Glu245 in the catalytic pocket of BpFae could form hydrogen bonds with the substrate and were crucial for catalytic activity and substrate specificity. When G11 xylanase XynA and BpFae were used separately for hydrolyzing de-starched wheat bran (DSWB), the ferulic acid released was undetectable and 1.78%, respectively, whereas it was increased to 59.26% using the mixture of the two enzymes. Thus, BpFae is considered an attractive candidate for the production of ferulic acid from agricultural by-products. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-03066-2.
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Affiliation(s)
- Zhilei Fu
- grid.411615.60000 0000 9938 1755Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), No 11 Fucheng Street, Haidian District, Beijing, 100048 China ,grid.411615.60000 0000 9938 1755School of Food and Health, Beijing Technology and Business University (BTBU), Beijing, 100048 China
| | - Yuting Zhu
- grid.411615.60000 0000 9938 1755Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), No 11 Fucheng Street, Haidian District, Beijing, 100048 China ,grid.411615.60000 0000 9938 1755School of Food and Health, Beijing Technology and Business University (BTBU), Beijing, 100048 China
| | - Chao Teng
- grid.411615.60000 0000 9938 1755Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), No 11 Fucheng Street, Haidian District, Beijing, 100048 China ,grid.411615.60000 0000 9938 1755School of Food and Health, Beijing Technology and Business University (BTBU), Beijing, 100048 China
| | - Guangsen Fan
- grid.411615.60000 0000 9938 1755Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), No 11 Fucheng Street, Haidian District, Beijing, 100048 China ,grid.411615.60000 0000 9938 1755School of Food and Health, Beijing Technology and Business University (BTBU), Beijing, 100048 China
| | - Xiuting Li
- grid.411615.60000 0000 9938 1755Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), No 11 Fucheng Street, Haidian District, Beijing, 100048 China ,grid.411615.60000 0000 9938 1755School of Food and Health, Beijing Technology and Business University (BTBU), Beijing, 100048 China ,grid.411615.60000 0000 9938 1755Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University (BTBU), Beijing, 100048 China
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Li X, Dilokpimol A, Kabel MA, de Vries RP. Fungal xylanolytic enzymes: Diversity and applications. BIORESOURCE TECHNOLOGY 2022; 344:126290. [PMID: 34748977 DOI: 10.1016/j.biortech.2021.126290] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 05/26/2023]
Abstract
As important polysaccharide degraders in nature, fungi can diversify their extensive set of carbohydrate-active enzymes to survive in ecological habitats of various composition. Among these enzymes, xylanolytic ones can efficiently and sustainably degrade xylans into (fermentable) monosaccharides to produce valuable chemicals or fuels from, for example relevant for upgrading agro-food industrial side streams. Moreover, xylanolytic enzymes are being used in various industrial applications beyond biomass saccharification, e.g. food, animal feed, biofuel, pulp and paper. As a reference for researchers working in related areas, this review summarized the current knowledge on substrate specificity of xylanolytic enzymes from different families of the Carbohydrate-Active enZyme database. Additionally, the diversity of enzyme sets in fungi were discussed by comparing the number of genes encoding xylanolytic enzymes in selected fungal genomes. Finally, to support bio-economy, the current applications of fungal xylanolytic enzymes in industry were reviewed.
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Affiliation(s)
- Xinxin Li
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Adiphol Dilokpimol
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Mirjam A Kabel
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, The Netherlands
| | - Ronald P de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.
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Zerva A, Pentari C, Ferousi C, Nikolaivits E, Karnaouri A, Topakas E. Recent advances on key enzymatic activities for the utilisation of lignocellulosic biomass. BIORESOURCE TECHNOLOGY 2021; 342:126058. [PMID: 34597805 DOI: 10.1016/j.biortech.2021.126058] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
The field of enzymatic degradation of lignocellulose is actively growing and the recent updates of the last few years indicate that there is still much to learn. The growing number of protein sequences with unknown function in microbial genomes indicates that there is still much to learn on the mechanisms of lignocellulose degradation. In this review, a summary of the progress in the field is presented, including recent discoveries on the nature of the structural polysaccharides, new technologies for the discovery and functional annotation of gene sequences including omics technologies, and the novel lignocellulose-acting enzymes described. Novel enzymatic activities and enzyme families as well as accessory enzymes and their synergistic relationships regarding biomass breakdown are described. Moreover, it is shown that all the valuable knowledge of the enzymatic decomposition of plant biomass polymers can be employed towards the decomposition and upgrading of synthetic polymers, such as plastics.
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Affiliation(s)
- Anastasia Zerva
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Christina Pentari
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Christina Ferousi
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Efstratios Nikolaivits
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Anthi Karnaouri
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
| | - Evangelos Topakas
- Industrial Biotechnology & Biocatalysis Group, Biotechnology Laboratory, School of Chemical Engineering, National Technical University of Athens, Athens, Greece; Biochemical Process Engineering, Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Luleå, Sweden.
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30
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Todokoro T, Negoro H, Kotaka A, Hata Y, Ishida H. Aspergillus oryzae FaeA is responsible for the release of ferulic acid, a precursor of off-odor 4-vinylguaiacol in sake brewing. J Biosci Bioeng 2021; 133:140-145. [PMID: 34815172 DOI: 10.1016/j.jbiosc.2021.11.001] [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: 07/16/2021] [Revised: 10/25/2021] [Accepted: 11/03/2021] [Indexed: 11/17/2022]
Abstract
4-Vinylguaiacol (4-VG) is one of the most common off-flavors found in sake. 4-VG is produced from its precursor, ferulic acid, which is a component of the cell wall of the rice endosperm. The release of ferulic acid in sake brewing is thought to be mediated by feruloyl esterase produced by either Aspergillus oryzae or Saccharomyces cerevisiae. To investigate the effect of FaeA, a feruloyl esterase produced by A. oryzae, its loss-of-function strain was produced by genome co-editing. The feruloyl esterase activity of the faeA-deficient strain was drastically reduced. Sake was fermented using koji with S. cerevisiae strain G046, which can convert ferulic acid to 4-VG. Fermented sake was analyzed by measuring the 4-VG content and sensory evaluation. 4-VG content was reduced to approximately 10% of that of sake fermented with control koji. Sensory evaluation revealed that 4-VG was almost undetectable. Our findings showed that disruption of faeA in A. oryzae is a promising strategy to reduce 4-VG off-flavors in sake.
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Affiliation(s)
- Takehiko Todokoro
- Research Institute, Gekkeikan Sake Co., Ltd., 101 Shimotoba-koyanagi-cho, Fushimi-ku, Kyoto 612-8385, Japan.
| | - Hiroaki Negoro
- Research Institute, Gekkeikan Sake Co., Ltd., 101 Shimotoba-koyanagi-cho, Fushimi-ku, Kyoto 612-8385, Japan
| | - Atsushi Kotaka
- Research Institute, Gekkeikan Sake Co., Ltd., 101 Shimotoba-koyanagi-cho, Fushimi-ku, Kyoto 612-8385, Japan
| | - Yoji Hata
- Research Institute, Gekkeikan Sake Co., Ltd., 101 Shimotoba-koyanagi-cho, Fushimi-ku, Kyoto 612-8385, Japan
| | - Hiroki Ishida
- Research Institute, Gekkeikan Sake Co., Ltd., 101 Shimotoba-koyanagi-cho, Fushimi-ku, Kyoto 612-8385, Japan
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31
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Improved synthesis of the antifungal isobutyl o-coumarate catalyzed by the Aspergillus terreus type B feruloyl esterase. ELECTRON J BIOTECHN 2021. [DOI: 10.1016/j.ejbt.2021.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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32
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Agrawal D, Tsang A, Chadha BS. Economizing the lignocellulosic hydrolysis process using heterologously expressed auxiliary enzymes feruloyl esterase D (CE1) and β-xylosidase (GH43) derived from thermophilic fungi Scytalidium thermophilum. BIORESOURCE TECHNOLOGY 2021; 339:125603. [PMID: 34293687 DOI: 10.1016/j.biortech.2021.125603] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
Two lignocellulolytic accessory enzymes, feruloyl esterase D (FAED_SCYTH) and β-xylosidase (XYL43B_SCYTH) were cloned and produced in the Pichia pastoris X33 as host. The molecular weight of recombinant enzymes FAED_SCYTH and XYL43B_SCYTH were ~ 31 and 40 kDa, respectively. FAED_SCYTH showed optimal activity at pH 6.0, 60 °C; and XYL43B_SCYTH at pH 7.0, 50 °C. FAED_SCYTH and XYL43B_SCYTH exhibited t1/2: 4 and 0.5 h, respectively (50 °C, pH 5.0). The β-xylosidase was bi-functional with pronounced activity against pNP-α-arabinofuranoside besides being highly xylose tolerant (retaining ~ 97% activity in the presence of 700 mM xylose). Cocktails prepared using these enzymes along with AA9 protein (PMO9D_SCYTH) and commercial cellulase CellicCTec2, showed improved hydrolysis of the pre-treated lignocellulosic biomass. Priming of pre-treated lignocellulosic biomass with these accessory enzymes was found to further enhance the hydrolytic potential of CellicCTec2 promising to reduce the enzyme load and cost required for obtaining sugars from biorefinery relevant pre-treated substrates.
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Affiliation(s)
- Dhruv Agrawal
- Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab-143005, India
| | - Adrian Tsang
- Centre for Structural and Functional Genomics, Concordia University, 7141 Sherbrooke Street West, Montreal, Quebec H4B 1R6, Canada
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Ghodke VM, Punekar NS. Environmental role of aromatic carboxylesterases. Environ Microbiol 2021; 24:2657-2668. [PMID: 34528362 DOI: 10.1111/1462-2920.15774] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/08/2021] [Accepted: 09/10/2021] [Indexed: 01/14/2023]
Abstract
The carboxylesterases (EC 3.1.1.x) are widely distributed and form an important yet diverse group of hydrolases catalysing the ester bond cleavage in a variety of substrates. Besides acting on plant cell wall components like cutin, tannin and feruloyl esters, they are often the first line of defence to metabolize drugs, xenobiotics, pesticides, insecticides and plastic. But for the promiscuity of some carboxylesterases and cutinases, very few enzymes act exclusively on aromatic carboxylic acid esters. Infrequent occurrence of aromatic carboxylesterases suggests that aromatic carboxylesters are inherently more difficult to hydrolyse than the regular carboxylesters because of both steric and polar effects. Naturally occurring aromatic carboxylesters were rare before the anthropogenic activity augmented their environmental presence and diversity. An appraisal of the literature shows that the hydrolysis of aromatic carboxylic esters is a uniquely difficult endeavour and hence deserves special attention. Enzymes to hydrolyse such esters are evolving rapidly in nature. Very few such enzymes are known and they often display much lower catalytic efficiencies. Obviously, the esters of aromatic carboxylic acids, including polyethylene terephthalate waste, pose an environmental challenge. In this review, we highlight the uniqueness of aromatic carboxylesters and then underscore the importance of relevant carboxylesterases.
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Affiliation(s)
- Venkatesh M Ghodke
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Narayan S Punekar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India
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Feruloyl esterase Fae1 is required specifically for host colonisation by the rice-blast fungus Magnaporthe oryzae. Curr Genet 2021; 68:97-113. [PMID: 34524467 DOI: 10.1007/s00294-021-01213-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/29/2021] [Accepted: 09/03/2021] [Indexed: 10/20/2022]
Abstract
Plant cell wall acts as a primary barrier for microbial pathogens during infection. A cell wall-degrading enzyme thus may be a crucial virulence factor, as it may aid the pathogen in successful host invasion. Nine genes coding for feruloyl esterases (Fae), likely involved in plant cell wall degradation, have been annotated in the genome of the cereal-blast fungus Magnaporthe oryzae. However, role of any Fae in pathogenicity of M. oryzae remains hitherto under explored. Here, we identified FAE1 gene (MGG_08737) that was significantly upregulated during host penetration and subsequent colonisation stages of infection. Accordingly, while deletion of FAE1 in M. oryzae did not affect the vegetative growth and asexual development, the fae1Δ mutant showed significantly reduced pathogenesis on rice plants, mainly due to impaired host invasion and colonisation. Very few (< 10%) fae1Δ appressoria that formed the primary invasive hyphae failed to elaborate from the first invaded cell to the neighbouring plant cells. Interestingly, exogenously added glucose, as a simple carbon source, or ferulic acid, a product of the Fae activity, significantly supported the invasive growth of the fae1Δ mutant. We show that the Fae1-based feruloyl esterase activity, by targeting the plant cell wall, plays an important role in accumulating ferulic acid and/or sugar molecules, as a likely energy source, to enable host invasion and colonisation by M. oryzae. Given its role in plant cell wall digestion and host colonisation, M. oryzae Fae1 could be a potential candidate for a novel antifungal strategy and a biotechnological application in biofuel production.
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Expression of an alkaline feruloyl esterases from thermophilic Chaetomium thermophilum and its boosting effect on delignification of pulp. Enzyme Microb Technol 2021; 150:109859. [PMID: 34489049 DOI: 10.1016/j.enzmictec.2021.109859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 06/20/2021] [Accepted: 06/23/2021] [Indexed: 11/23/2022]
Abstract
Exploration of feruloyl esterase (FAE) with the resistance to heat and alkali conditions in biobleaching process to improve the separation efficiency of lignocellulose is the key to achieving green papermaking. Herein, we expressed FAEB of C. thermophilum and obtained a thermostable alkaline FAE that can effectively promote the removal of lignin from pulp. The faeB gene was successfully obtained through genomic Blast strategy and high-efficiency expressed under the control of strong alcohol oxidase promoter in Pichia pastoris. The recombinant CtFAEB has an optimal temperature of 65 °C and pH of 7.0. After treated at 65 °C for 1 h, CtFAEB can still retain 63.21 % of its maximum activity, showing a good thermal stability. In addition, the recombinant CtFAEB has broad pH stability and can retain about 56 % of the maximum activity even at pH 11.0. Compared with the effect of mesophilic FAE, pretreatment with thermostable CtFAEB can promote the delignification by laccase and alkaline hydrogen peroxide from the pulp at 70 °C and pH 9.0. Alignment of the protein sequences of CtFAEB and mesophilic FAE suggested that the percentage of amino acids that easily form alpha helix in CtFAEB increases, which enhances its structural rigidity and thereby improves its thermal stability and alkali tolerance. Our study provides an effective method to obtain thermostable and alkaline FAEs, which will promote its application in biobleaching and other biorefining industries.
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Garrigues S, Kun RS, Peng M, Gruben BS, Benoit Gelber I, Mäkelä M, de Vries RP. The Cultivation Method Affects the Transcriptomic Response of Aspergillus niger to Growth on Sugar Beet Pulp. Microbiol Spectr 2021; 9:e0106421. [PMID: 34431718 PMCID: PMC8552599 DOI: 10.1128/spectrum.01064-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 11/20/2022] Open
Abstract
In nature, filamentous fungi are exposed to diverse nutritional sources and changes in substrate availability. Conversely, in submerged cultures, mycelia are continuously exposed to the existing substrates, which are depleted over time. Submerged cultures are the preferred choice for experimental setups in laboratory and industry and are often used for understanding the physiology of fungi. However, to what extent the cultivation method affects fungal physiology, with respect to utilization of natural substrates, has not been addressed in detail. Here, we compared the transcriptomic responses of Aspergillus niger grown in submerged culture and solid culture, both containing sugar beet pulp (SBP) as a carbon source. The results showed that expression of CAZy (Carbohydrate Active enZyme)-encoding and sugar catabolic genes in liquid SBP was time dependent. Moreover, additional components of SBP delayed the A. niger response to the degradation of pectin present in SBP. In addition, we demonstrated that liquid cultures induced wider transcriptome variability than solid cultures. Although there was a correlation regarding sugar metabolic gene expression patterns between liquid and solid cultures, it decreased in the case of CAZyme-encoding genes. In conclusion, the transcriptomic response of A. niger to SBP is influenced by the culturing method, limiting the value of liquid cultures for understanding the behavior of fungi in natural habitats. IMPORTANCE Understanding the interaction between filamentous fungi and their natural and biotechnological environments has been of great interest for the scientific community. Submerged cultures are preferred over solid cultures at a laboratory scale to study the natural response of fungi to different stimuli found in nature (e.g., carbon/nitrogen sources, pH). However, whether and to what extent submerged cultures introduce variation in the physiology of fungi during growth on plant biomass have not been studied in detail. In this study, we compared the transcriptomic responses of Aspergillus niger to growth on liquid and solid cultures containing sugar beet pulp (a by-product of the sugar industry) as a carbon source. We demonstrate that the transcriptomic response of A. niger was highly affected by the culture condition, since the transcriptomic response obtained in a liquid environment could not fully explain the behavior of the fungus in a solid environment. This could partially explain the differences often observed between the phenotypes on plates compared to liquid cultures.
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Affiliation(s)
- Sandra Garrigues
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - Roland S. Kun
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - Mao Peng
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
| | - Birgit S. Gruben
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
- Microbiology, Utrecht University, Utrecht, The Netherlands
| | - Isabelle Benoit Gelber
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
- Microbiology, Utrecht University, Utrecht, The Netherlands
| | - Miia Mäkelä
- Department of Microbiology, University of Helsinki, Helsinki, Finland
| | - Ronald P. de Vries
- Fungal Physiology, Westerdijk Fungal Biodiversity Institute & Fungal Molecular Physiology, Utrecht University, Utrecht, The Netherlands
- Microbiology, Utrecht University, Utrecht, The Netherlands
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da Costa RMF, Winters A, Hauck B, Martín D, Bosch M, Simister R, Gomez LD, Batista de Carvalho LAE, Canhoto JM. Biorefining Potential of Wild-Grown Arundo donax, Cortaderia selloana and Phragmites australis and the Feasibility of White-Rot Fungi-Mediated Pretreatments. FRONTIERS IN PLANT SCIENCE 2021; 12:679966. [PMID: 34276732 PMCID: PMC8283202 DOI: 10.3389/fpls.2021.679966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/10/2021] [Indexed: 05/29/2023]
Abstract
Arundo donax, Cortaderia selloana and Phragmites australis are high-biomass-producing perennial Poalean species that grow abundantly and spontaneously in warm temperate regions, such as in Mediterranean-type climates, like those of Southern Europe, Western United States coastal areas, or in regions of South America, South Africa and Australia. Given their vigorous and spontaneous growth, biomass from the studied grasses often accumulates excessively in unmanaged agro-forestry areas. Nonetheless, this also creates the demand and opportunity for the valorisation of these biomass sources, particularly their cell wall polymers, for biorefining applications. By contrast, a related crop, Miscanthus × giganteus, is a perennial grass that has been extensively studied for lignocellulosic biomass production, as it can grow on low-input agricultural systems in colder climates. In this study Fourier transform mid-infrared spectroscopy (FTIR), high-performance anion-exchange chromatography (HPAEC) and lignin content determinations were used for a comparative compositional characterisation of A. donax, C. selloana and P. australis harvested from the wild, in relation to a trial field-grown M. × giganteus high-yielding genotype. A high-throughput saccharification assay showed relatively high sugar release values from the wild-grown grasses, even with a 0.1M NaOH mild alkali pretreatment. In addition to this alkaline pretreatment, biomass was treated with white-rot fungi (WRF), which preferentially degrade lignin more readily than holocellulose. Three fungal species were used: Ganoderma lucidum, Pleurotus ostreatus and Trametes versicolor. Our results showed that neutral sugar contents are not significantly altered, while some lignin is lost during the pretreatments. Furthermore, sugar release upon enzymatic saccharification was enhanced, and this was dependent on the plant biomass and fungal species used in the treatment. To maximise the potential for lignocellulose valorisation, the liquid fractions from the pretreatments were analysed by high performance liquid chromatography - photodiode array detection - electrospray ionisation tandem mass spectrometry (HPLC-PDA-ESI-MS n ). This study is one of the first to report on the composition of WRF-treated grass biomass, while assessing the potential relevance of breakdown products released during the treatments, beyond more traditional sugar-for-energy applications. Ultimately, we expect that our data will help promote the valorisation of unused biomass resources, create economic value, while contributing to the implementation of sustainable biorefining systems.
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Affiliation(s)
- Ricardo M. F. da Costa
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, Coimbra, Portugal
| | - Ana Winters
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Barbara Hauck
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Daniel Martín
- Molecular Physical-Chemistry R&D Unit, Department of Chemistry, University of Coimbra, Coimbra, Portugal
| | - Maurice Bosch
- Institute of Biological, Environmental and Rural Sciences, Aberystwyth University, Aberystwyth, United Kingdom
| | - Rachael Simister
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Leonardo D. Gomez
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | | | - Jorge M. Canhoto
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
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Ohta Y, Katsumata M, Kurosawa K, Takaki Y, Nishimura H, Watanabe T, Kasuya KI. Degradation of ester linkages in rice straw components by Sphingobium species recovered from the sea bottom using a non-secretory tannase-family α/β hydrolase. Environ Microbiol 2021; 23:4151-4167. [PMID: 33939871 DOI: 10.1111/1462-2920.15551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 11/28/2022]
Abstract
Microbial decomposition of allochthonous plant components imported into the aquatic environment is one of the vital steps of the carbon cycle on earth. To expand the knowledge of the biodegradation of complex plant materials in aquatic environments, we recovered a sunken wood from the bottom of Otsuchi Bay, situated in northeastern Japan in 2012. We isolated Sphingobium with high ferulic acid esterase activity. The strain, designated as OW59, grew on various aromatic compounds and sugars, occurring naturally in terrestrial plants. A genomic study of the strain suggested its role in degrading hemicelluloses. We identified a gene encoding a non-secretory tannase-family α/β hydrolase, which exhibited ferulic acid esterase activity. This enzyme shares the consensus catalytic triad (Ser-His-Asp) within the tannase family block X in the ESTHER database. The molecules, which had the same calculated elemental compositions, were produced consistently in both the enzymatic and microbial degradation of rice straw crude extracts. The non-secretory tannase-family α/β hydrolase activity may confer an important phenotypic feature on the strain to accelerate plant biomass degradation. Our study provides insights into the underlying biodegradation process of terrestrial plant polymers in aquatic environments.
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Affiliation(s)
- Yukari Ohta
- Gunma University Center for Food Science and Wellness, 4-2 Aramaki, Maebashi, Gunma, 371-8510, Japan
| | - Madoka Katsumata
- Gunma University Center for Food Science and Wellness, 4-2 Aramaki, Maebashi, Gunma, 371-8510, Japan
| | - Kanako Kurosawa
- Super-cutting-edge Grand and Advanced Research Program, JAMSTEC, 2-15, Natsushima, Yokosuka, Kanagawa, 237-0061, Japan
| | - Yoshihiro Takaki
- Super-cutting-edge Grand and Advanced Research Program, JAMSTEC, 2-15, Natsushima, Yokosuka, Kanagawa, 237-0061, Japan
| | - Hiroshi Nishimura
- Biomass Conversion, Research Institute for Sustainable Humanosphere, Kyoto University Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Takashi Watanabe
- Biomass Conversion, Research Institute for Sustainable Humanosphere, Kyoto University Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Ken-Ichi Kasuya
- Gunma University Center for Food Science and Wellness, 4-2 Aramaki, Maebashi, Gunma, 371-8510, Japan.,Division of Molecular Science, Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma, 376-8515, Japan
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Li F, Zhang J, Ma F, Chen Q, Xiao Q, Zhang X, Xie S, Yu H. Lytic polysaccharide monooxygenases promote oxidative cleavage of lignin and lignin-carbohydrate complexes during fungal degradation of lignocellulose. Environ Microbiol 2021; 23:4547-4560. [PMID: 34169632 DOI: 10.1111/1462-2920.15648] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 01/06/2023]
Abstract
Overcoming lignocellulosic biomass recalcitrance, especially the cleavage of cross-linkages in lignin-carbohydrate complexes (LCCs) and lignin, is essential for both the carbon cycle and industrial biorefinery. Lytic polysaccharide monooxygenases (LPMOs) are copper-containing enzymes that play a key role in fungal polysaccharide oxidative degradation. Nevertheless, comprehensive analysis showed that LPMOs from a white-rot fungus, Pleurotus ostreatus, correlated well with the Fenton reaction and were involved in the degradation of recalcitrant nonpolysaccharide fractions in this research. Thus, LPMOs participated in the extracellular Fenton reaction by enhancing iron reduction in quinone redox cycling. A Fenton reaction system consisting of LPMOs, hydroquinone, and ferric iron can efficiently produce hydroxy radicals and then cleave LCCs or lignin linkages. This finding indicates that LPMOs are underestimated auxiliary enzymes in eliminating biomass recalcitrance.
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Affiliation(s)
- Fei Li
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jialong Zhang
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Fuying Ma
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qing Chen
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Qiuyun Xiao
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaoyu Zhang
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Shangxian Xie
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hongbo Yu
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
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Mao L, van Arkel J, Hendriks WH, Cone JW, de Vos RC, Sonnenberg AS. Assessing the nutritional quality of fungal treated wheat straw: Compounds formed after treatment with Ceriporiopsis subvermispora and Lentinula edodes. Anim Feed Sci Technol 2021. [DOI: 10.1016/j.anifeedsci.2021.114924] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hameleers L, Penttinen L, Ikonen M, Jaillot L, Fauré R, Terrapon N, Deuss PJ, Hakulinen N, Master ER, Jurak E. Polysaccharide utilization loci-driven enzyme discovery reveals BD-FAE: a bifunctional feruloyl and acetyl xylan esterase active on complex natural xylans. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:127. [PMID: 34059129 PMCID: PMC8165983 DOI: 10.1186/s13068-021-01976-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/19/2021] [Indexed: 05/10/2023]
Abstract
BACKGROUND Nowadays there is a strong trend towards a circular economy using lignocellulosic biowaste for the production of biofuels and other bio-based products. The use of enzymes at several stages of the production process (e.g., saccharification) can offer a sustainable route due to avoidance of harsh chemicals and high temperatures. For novel enzyme discovery, physically linked gene clusters targeting carbohydrate degradation in bacteria, polysaccharide utilization loci (PULs), are recognized 'treasure troves' in the era of exponentially growing numbers of sequenced genomes. RESULTS We determined the biochemical properties and structure of a protein of unknown function (PUF) encoded within PULs of metagenomes from beaver droppings and moose rumen enriched on poplar hydrolysate. The corresponding novel bifunctional carbohydrate esterase (CE), now named BD-FAE, displayed feruloyl esterase (FAE) and acetyl esterase activity on simple, synthetic substrates. Whereas acetyl xylan esterase (AcXE) activity was detected on acetylated glucuronoxylan from birchwood, only FAE activity was observed on acetylated and feruloylated xylooligosaccharides from corn fiber. The genomic contexts of 200 homologs of BD-FAE revealed that the 33 closest homologs appear in PULs likely involved in xylan breakdown, while the more distant homologs were found either in alginate-targeting PULs or else outside PUL contexts. Although the BD-FAE structure adopts a typical α/β-hydrolase fold with a catalytic triad (Ser-Asp-His), it is distinct from other biochemically characterized CEs. CONCLUSIONS The bifunctional CE, BD-FAE, represents a new candidate for biomass processing given its capacity to remove ferulic acid and acetic acid from natural corn and birchwood xylan substrates, respectively. Its detailed biochemical characterization and solved crystal structure add to the toolbox of enzymes for biomass valorization as well as structural information to inform the classification of new CEs.
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Affiliation(s)
- Lisanne Hameleers
- Department of Bioproduct Engineering, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Leena Penttinen
- Department of Bioproducts and Biosystems, Aalto University, Kemistintie 1, 02150, Espoo, Finland
| | - Martina Ikonen
- Department of Bioproducts and Biosystems, Aalto University, Kemistintie 1, 02150, Espoo, Finland
| | - Léa Jaillot
- Architecture Et Fonction Des Macromolécules Biologiques (AFMB), UMR7257 Centre National de La Recherche Scientifique (CNRS) and Aix-Marseille Université (AMU), USC1408 Institut National de Recherche Pour L'Agriculture, l'Alimentation Et L'Environnement (INRAE), 13288, Marseille cedex 9, France
| | - Régis Fauré
- Toulouse Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, Toulouse, France
| | - Nicolas Terrapon
- Architecture Et Fonction Des Macromolécules Biologiques (AFMB), UMR7257 Centre National de La Recherche Scientifique (CNRS) and Aix-Marseille Université (AMU), USC1408 Institut National de Recherche Pour L'Agriculture, l'Alimentation Et L'Environnement (INRAE), 13288, Marseille cedex 9, France
| | - Peter J Deuss
- Department of Chemical Engineering, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Nina Hakulinen
- Department of Chemistry, University of Eastern Finland, Yliopistokatu 7, 80130, Joensuu, Finland
| | - Emma R Master
- Department of Bioproducts and Biosystems, Aalto University, Kemistintie 1, 02150, Espoo, Finland
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON, M5S 3E5, Canada
| | - Edita Jurak
- Department of Bioproduct Engineering, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands.
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Duan X, Dai Y, Zhang T. Characterization of Feruloyl Esterase from Bacillus pumilus SK52.001 and Its Application in Ferulic Acid Production from De-Starched Wheat Bran. Foods 2021; 10:foods10061229. [PMID: 34071417 PMCID: PMC8228269 DOI: 10.3390/foods10061229] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 01/16/2023] Open
Abstract
Feruloyl esterase (FAE; EC 3.1.1.73) catalyzes the hydrolysis of the 4-hydroxy-3-methoxycinnamoyl group in an esterified sugar to assist in waste biomass degradation or to release ferulic acid (FA). An FAE-producing strain was isolated from humus soil samples and identified as Bacillus pumilus SK52.001. The BpFAE gene from B. pumilus SK52.001 was speculated and heterogeneously expressed in Bacillus subtilis WB800 for the first time. The enzyme exists as a monomer with 303 amino acids and a molecular mass of 33.6 kDa. Its specific activity was 377.9 ± 10.3 U/ (mg protein), using methyl ferulate as a substrate. It displays an optimal alkaline pH of 9.0, an optimal temperature of 50 °C, and half-lives of 1434, 327, 235, and 68 min at 50, 55, 60, and 65 °C, respectively. Moreover, the purified BpFAE released 4.98% FA of the alkali-acidic extractable FA from de-starched wheat bran (DSWB). When the DSWB was enzymatically degraded by the synergistic effect of the BpFAE and commercial xylanase, the FA amount reached 49.47%. It suggested that the alkaline BpFAE from B. pumilus SK52.001, which was heterologously expressed in B. subtilis WB800, possesses great potential for biomass degradation and achieving high-added value FA production from food by-products.
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Affiliation(s)
- Xiaoli Duan
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.D.); (Y.D.)
| | - Yiwei Dai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.D.); (Y.D.)
| | - Tao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (X.D.); (Y.D.)
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
- Correspondence:
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From lignocellulose to plastics: Knowledge transfer on the degradation approaches by fungi. Biotechnol Adv 2021; 50:107770. [PMID: 33989704 DOI: 10.1016/j.biotechadv.2021.107770] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/04/2021] [Accepted: 05/08/2021] [Indexed: 01/21/2023]
Abstract
In this review, we argue that there is much to be learned by transferring knowledge from research on lignocellulose degradation to that on plastic. Plastic waste accumulates in the environment to hazardous levels, because it is inherently recalcitrant to biological degradation. Plants evolved lignocellulose to be resistant to degradation, but with time, fungi became capable of utilising it for their nutrition. Examples of how fungal strategies to degrade lignocellulose could be insightful for plastic degradation include how fungi overcome the hydrophobicity of lignin (e.g. production of hydrophobins) and crystallinity of cellulose (e.g. oxidative approaches). In parallel, knowledge of the methods for understanding lignocellulose degradation could be insightful such as advanced microscopy, genomic and post-genomic approaches (e.g. gene expression analysis). The known limitations of biological lignocellulose degradation, such as the necessity for physiochemical pretreatments for biofuel production, can be predictive of potential restrictions of biological plastic degradation. Taking lessons from lignocellulose degradation for plastic degradation is also important for biosafety as engineered plastic-degrading fungi could also have increased plant biomass degrading capabilities. Even though plastics are significantly different from lignocellulose because they lack hydrolysable C-C or C-O bonds and therefore have higher recalcitrance, there are apparent similarities, e.g. both types of compounds are mixtures of hydrophobic polymers with amorphous and crystalline regions, and both require hydrolases and oxidoreductases for their degradation. Thus, many lessons could be learned from fungal lignocellulose degradation.
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Grajales-Hernández DA, Armendáriz-Ruiz MA, Gallego FL, Mateos-Díaz JC. Approaches for the enzymatic synthesis of alkyl hydroxycinnamates and applications thereof. Appl Microbiol Biotechnol 2021; 105:3901-3917. [PMID: 33928423 DOI: 10.1007/s00253-021-11285-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/21/2021] [Accepted: 04/07/2021] [Indexed: 01/05/2023]
Abstract
Alkyl hydroxycinnamates (AHs) is a group of molecules of biotechnological interest due to their cosmetic, food, and pharmaceutical applications. Among their most interesting uses are as UV protectants, skin depigmentation agents, and antioxidant ingredients which are often claimed for their antitumoral potential. Nowadays, many sustainable enzymatic approaches using low-cost starting materials are available and interesting immobilization techniques are helping to increase the reuse of the biocatalysts, allowing the intensification of the processes and increasing AHs accessibility. Here a convenient summary of AHs most interesting biological activities and possible applications is presented. A deeper analysis of the art state to obtain AHs, focusing on most employed enzymatic synthesis approaches, their sustainability, acyl donors relevance, and most interesting enzyme immobilization strategies is provided.Key points• Most interesting alkyl hydroxycinnamates applications are summarized.• Enzymatic approaches to obtain alkyl hydroxycinnamates are critically discussed.• Outlook of enzyme immobilization strategies to attain alkyl hydroxycinnamates.
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Affiliation(s)
- Daniel A Grajales-Hernández
- Department of Industrial Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Camino Arenero 1227, El Bajio del Arenal, 45019, Zapopan, Jal., Mexico
- Heterogeneous Biocatalysis Laboratory, Center for Cooperative Research in Biomaterials (CICbiomaGUNE), Basque Research and Technology Alliance (BRTA), Paséo Miramón, 182, 20014, Donostia-San Sebastián, Spain
| | - Mariana A Armendáriz-Ruiz
- Department of Industrial Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Camino Arenero 1227, El Bajio del Arenal, 45019, Zapopan, Jal., Mexico
| | - Fernando López Gallego
- Heterogeneous Biocatalysis Laboratory, Center for Cooperative Research in Biomaterials (CICbiomaGUNE), Basque Research and Technology Alliance (BRTA), Paséo Miramón, 182, 20014, Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48013, Bilbao, Spain
| | - Juan Carlos Mateos-Díaz
- Department of Industrial Biotechnology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (CIATEJ), Camino Arenero 1227, El Bajio del Arenal, 45019, Zapopan, Jal., Mexico.
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45
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Amobonye A, Bhagwat P, Ranjith D, Mohanlall V, Pillai S. Characterisation, pathogenicity and hydrolytic enzyme profiling of selected Fusarium species and their inhibition by novel coumarins. Arch Microbiol 2021; 203:3495-3508. [PMID: 33912984 DOI: 10.1007/s00203-021-02335-1] [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: 01/17/2021] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 11/30/2022]
Abstract
Three Fusarium species isolated locally were characterised by the amplification of their rDNA ITS region, host specificity, and hydrolytic enzyme production. The strains were identified as Fusarium pseudoanthophilum, which is being reported for the first time in South Africa, as well as F. foetens and F. fujikuroi. All the three strains were capable of infecting vegetables such as tomatoes, bell and cayenne peppers, belonging to the Solanaceae family. The Fusarium strains also showed significant production of cell wall degrading enzymes in vitro, such as amylase, cellulase, xylanase, and polygalacturonase, thus highlighting the possibilities of these enzymes as pathogenic factors. Subsequently, the strains were discovered to be susceptible to three halogenated coumarins. The most effective of the tested coumarins, 6-bromo3-2,2-dibromoacetyl-2H-chromen-2-one, showed MIC values of 0.125, 0.0625 and 0.125 mg/ml against F. foetens, F. pseudoanthophilum and F. fujikuroi, respectively. The antifungal potentials of the halogenated coumarins were confirmed in silico through PASS analysis, toxicity prediction and docking studies. Findings from this study demonstrate the use of these coumarins as potential control agents against the Fusarium species and other pathogenic fungi in general.
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Affiliation(s)
- Ayodeji Amobonye
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P.O. BOX 1334, Durban, 4000, South Africa
| | - Prashant Bhagwat
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P.O. BOX 1334, Durban, 4000, South Africa
| | - Divona Ranjith
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P.O. BOX 1334, Durban, 4000, South Africa
| | - Viresh Mohanlall
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P.O. BOX 1334, Durban, 4000, South Africa
| | - Santhosh Pillai
- Department of Biotechnology and Food Science, Faculty of Applied Sciences, Durban University of Technology, P.O. BOX 1334, Durban, 4000, South Africa.
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Gherbovet O, Ferreira F, Clément A, Ragon M, Durand J, Bozonnet S, O'Donohue MJ, Fauré R. Regioselective chemoenzymatic syntheses of ferulate conjugates as chromogenic substrates for feruloyl esterases. Beilstein J Org Chem 2021; 17:325-333. [PMID: 33828614 PMCID: PMC7871029 DOI: 10.3762/bjoc.17.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 01/15/2021] [Indexed: 11/30/2022] Open
Abstract
Generally, carbohydrate-active enzymes are studied using chromogenic substrates that provide quick and easy color-based detection of enzyme-mediated hydrolysis. For feruloyl esterases, commercially available chromogenic ferulate derivatives are both costly and limited in terms of their experimental application. In this study, we describe solutions for these two issues, using a chemoenzymatic approach to synthesize different ferulate compounds. The overall synthetic routes towards commercially available 5-bromo-4-chloro-3-indolyl and 4-nitrophenyl 5-O-feruloyl-α-ʟ-arabinofuranosides were significantly shortened (from 7 or 8 to 4–6 steps), and the transesterification yields were enhanced (from 46 to 73% and from 47 to 86%, respectively). This was achieved using enzymatic (immobilized Lipozyme® TL IM from Thermomyces lanuginosus) transesterification of unprotected vinyl ferulate to the primary hydroxy group of α‐ʟ‐arabinofuranosides. Moreover, a novel feruloylated 4-nitrocatechol-1-yl-substituted butanetriol analog, containing a cleavable hydroxylated linker, was also synthesized in 32% overall yield in 3 steps (convergent synthesis). The latter route combined the regioselective functionalization of 4-nitrocatechol and enzymatic transferuloylation. The use of this strategy to characterize type A feruloyl esterase from Aspergillus niger reveals the advantages of this substrate for the characterizations of feruloyl esterases.
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Affiliation(s)
- Olga Gherbovet
- Toulouse Biotechnology Institute, Bio & Chemical Engineering (TBI), Université de Toulouse, CNRS 5504, INRAE 792, INSA de Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Fernando Ferreira
- Toulouse Biotechnology Institute, Bio & Chemical Engineering (TBI), Université de Toulouse, CNRS 5504, INRAE 792, INSA de Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Apolline Clément
- Toulouse Biotechnology Institute, Bio & Chemical Engineering (TBI), Université de Toulouse, CNRS 5504, INRAE 792, INSA de Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Mélanie Ragon
- Toulouse Biotechnology Institute, Bio & Chemical Engineering (TBI), Université de Toulouse, CNRS 5504, INRAE 792, INSA de Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Julien Durand
- Toulouse Biotechnology Institute, Bio & Chemical Engineering (TBI), Université de Toulouse, CNRS 5504, INRAE 792, INSA de Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Sophie Bozonnet
- Toulouse Biotechnology Institute, Bio & Chemical Engineering (TBI), Université de Toulouse, CNRS 5504, INRAE 792, INSA de Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Michael J O'Donohue
- Toulouse Biotechnology Institute, Bio & Chemical Engineering (TBI), Université de Toulouse, CNRS 5504, INRAE 792, INSA de Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Régis Fauré
- Toulouse Biotechnology Institute, Bio & Chemical Engineering (TBI), Université de Toulouse, CNRS 5504, INRAE 792, INSA de Toulouse, 135 Avenue de Rangueil, 31077 Toulouse, France
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Silveira RL, Knott BC, Pereira CS, Crowley MF, Skaf MS, Beckham GT. Transition Path Sampling Study of the Feruloyl Esterase Mechanism. J Phys Chem B 2021; 125:2018-2030. [PMID: 33616402 DOI: 10.1021/acs.jpcb.0c09725] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Serine hydrolases cleave peptide and ester bonds and are ubiquitous in nature, with applications in biotechnology, in materials, and as drug targets. The serine hydrolase two-step mechanism employs a serine-histidine-aspartate/glutamate catalytic triad, where the histidine residue acts as a base to activate poor nucleophiles (a serine residue or a water molecule) and as an acid to allow the dissociation of poor leaving groups. This mechanism has been the subject of debate regarding how histidine shuttles the proton from the nucleophile to the leaving group. To elucidate the reaction mechanism of serine hydrolases, we employ quantum mechanics/molecular mechanics-based transition path sampling to obtain the reaction coordinate using the Aspergillus niger feruloyl esterase A (AnFaeA) as a model enzyme. The optimal reaction coordinates include terms involving nucleophilic attack on the carbonyl carbon and proton transfer to, and dissociation of, the leaving group. During the reaction, the histidine residue undergoes a reorientation on the time scale of hundreds of femtoseconds that supports the "moving histidine" mechanism, thus calling into question the "ring flip" mechanism. We find a concerted mechanism, where the transition state coincides with the tetrahedral intermediate with the histidine residue pointed between the nucleophile and the leaving group. Moreover, motions of the catalytic aspartate toward the histidine occur concertedly with proton abstraction by the catalytic histidine and help stabilize the transition state, thus partially explaining how serine hydrolases enable poor nucleophiles to attack the substrate carbonyl carbon. Rate calculations indicate that the second step (deacylation) is rate-determining, with a calculated rate constant of 66 s-1. Overall, these results reveal the pivotal role of active-site dynamics in the catalytic mechanism of AnFaeA, which is likely similar in other serine hydrolases.
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Affiliation(s)
- Rodrigo L Silveira
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States.,Institute of Chemistry and Center for Computing in Engineering and Sciences, University of Campinas, Campinas, Sao Paulo 13084-862, Brazil.,Institute of Chemistry, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-909, Brazil
| | - Brandon C Knott
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Caroline S Pereira
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States.,Institute of Chemistry and Center for Computing in Engineering and Sciences, University of Campinas, Campinas, Sao Paulo 13084-862, Brazil
| | - Michael F Crowley
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Munir S Skaf
- Institute of Chemistry and Center for Computing in Engineering and Sciences, University of Campinas, Campinas, Sao Paulo 13084-862, Brazil
| | - Gregg T Beckham
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
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48
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Kmezik C, Mazurkewich S, Meents T, McKee LS, Idström A, Armeni M, Savolainen O, Brändén G, Larsbrink J. A polysaccharide utilization locus from the gut bacterium Dysgonomonas mossii encodes functionally distinct carbohydrate esterases. J Biol Chem 2021; 296:100500. [PMID: 33667545 PMCID: PMC8040265 DOI: 10.1016/j.jbc.2021.100500] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/27/2021] [Accepted: 03/01/2021] [Indexed: 02/06/2023] Open
Abstract
The gut microbiota plays a central role in human health by enzymatically degrading dietary fiber and concomitantly excreting short chain fatty acids that are associated with manifold health benefits. The polysaccharide xylan is abundant in dietary fiber but noncarbohydrate decorations hinder efficient cleavage by glycoside hydrolases (GHs) and need to be addressed by carbohydrate esterases (CEs). Enzymes from carbohydrate esterase families 1 and 6 (CE1 and 6) perform key roles in xylan degradation by removing feruloyl and acetate decorations, yet little is known about these enzyme families especially with regard to their diversity in activity. Bacteroidetes bacteria are dominant members of the microbiota and often encode their carbohydrate-active enzymes in multigene polysaccharide utilization loci (PULs). Here we present the characterization of three CEs found in a PUL encoded by the gut Bacteroidete Dysgonomonas mossii. We demonstrate that the CEs are functionally distinct, with one highly efficient CE6 acetyl esterase and two CE1 enzymes with feruloyl esterase activities. One multidomain CE1 enzyme contains two CE1 domains: an N-terminal domain feruloyl esterase, and a C-terminal domain with minimal activity on model substrates. We present the structure of the C-terminal CE1 domain with the carbohydrate-binding module that bridges the two CE1 domains, as well as a complex of the same protein fragment with methyl ferulate. The investment of D. mossii in producing multiple CEs suggests that improved accessibility of xylan for GHs and cleavage of covalent polysaccharide-polysaccharide and lignin-polysaccharide bonds are important enzyme activities in the gut environment.
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Affiliation(s)
- Cathleen Kmezik
- Division of Industrial Biotechnology, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Scott Mazurkewich
- Division of Industrial Biotechnology, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Tomke Meents
- Division of Industrial Biotechnology, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Lauren Sara McKee
- Division of Glycoscience, Department of Chemistry, Royal Institute of Technology (KTH), AlbaNova University Centre, Stockholm, Sweden; Wallenberg Wood Science Center, Stockholm, Sweden
| | - Alexander Idström
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Marina Armeni
- Chalmers Mass Spectrometry Infrastructure, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Otto Savolainen
- Chalmers Mass Spectrometry Infrastructure, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden; Department of Clinical Nutrition, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Gisela Brändén
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Johan Larsbrink
- Division of Industrial Biotechnology, Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg, Sweden; Wallenberg Wood Science Center, Stockholm, Sweden.
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49
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Xu Z, Kong J, Zhang S, Wang T, Liu X. Comparison of Enzyme Secretion and Ferulic Acid Production by Escherichia coli Expressing Different Lactobacillus Feruloyl Esterases. Front Microbiol 2020; 11:568716. [PMID: 33329424 PMCID: PMC7732493 DOI: 10.3389/fmicb.2020.568716] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 08/25/2020] [Indexed: 12/15/2022] Open
Abstract
Construction of recombinant Escherichia coli strains carrying feruloyl esterase genes for secretory expression offers an attractive way to facilitate enzyme purification and one-step production of ferulic acid from agricultural waste. A total of 10 feruloyl esterases derived from nine Lactobacillus species were expressed in E. coli BL21 (DE3) to investigate their secretion and ferulic acid production. Extracellular activity determination showed all these Lactobacillus feruloyl esterases could be secreted out of E. coli cells. However, protein analysis indicated that they could be classified as three types. The first type presented a low secretion level, including feruloyl esterases derived from Lactobacillus acidophilus and Lactobacillus johnsonii. The second type showed a high secretion level, including feruloyl esterases derived from Lactobacillus amylovorus, Lactobacillus crispatus, Lactobacillus gasseri, and Lactobacillus helveticus. The third type also behaved a high secretion level but easy degradation, including feruloyl esterases derived from Lactobacillus farciminis, Lactobacillus fermentum, and Lactobacillus reuteri. Moreover, these recombinant E. coli strains could directly release ferulic acid from agricultural waste. The highest yield was 140 μg on the basis of 0.1 g de-starched wheat bran by using E. coli expressed L. amylovorus feruloyl esterase. These results provided a solid basis for the production of feruloyl esterase and ferulic acid.
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Affiliation(s)
- Zhenshang Xu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China.,Shandong Provincial Key Laboratory of Microbial Engineering, Department of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Jian Kong
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Susu Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Ting Wang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China.,Shandong Provincial Key Laboratory of Microbial Engineering, Department of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
| | - Xinli Liu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Science, Jinan, China.,Shandong Provincial Key Laboratory of Microbial Engineering, Department of Bioengineering, Qilu University of Technology, Shandong Academy of Science, Jinan, China
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50
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Carboué Q, Rébufa C, Hamrouni R, Roussos S, Bombarda I. Statistical approach to evaluate effect of temperature and moisture content on the production of antioxidant naphtho-gamma-pyrones and hydroxycinnamic acids by Aspergillus tubingensis in solid-state fermentation. Bioprocess Biosyst Eng 2020; 43:2283-2294. [PMID: 32880738 DOI: 10.1007/s00449-020-02413-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/20/2020] [Indexed: 12/21/2022]
Abstract
Non-ochratoxigenic Aspergillus tubingensis G131 is a filamentous fungus that can produce naphtho-gamma-pyrones (NγPs), polyketide pigments that exhibit interesting antioxidant properties. This study aims to investigate the effect of two critical parameters, temperature and moisture content on the fungus grown in solid-state fermentation using agricultural by-products (vine shoots and wheat bran) as sole medium. From the kinetic productions of secondary metabolites NγPs (asperpyrone E, dianhydroaurasperone C, fonsecin, fonsecin B and ustilaginoidin A), alkaloids (nigragilin and aspernigrin A), degradation products from the solid medium (β-D-glucose, p-coumaric acid and trans-ethyl ferulate), ergosterol and conidia obtained for different temperatures and moisture contents, a principal component analysis (PCA) was carried out to highlight the production patterns of these compounds. This approach allowed us to determine that fonsecin, the compound of higher interest-exhibiting the most interesting antiradical potential-is particularly more produced at 25 °C and 66% of moisture content. This study underlines the importance of temperature and moisture content on naphtho-gamma-pyrones and hydroxycinnamic acid production using solid-state fermentation and contributes to the development of agroindustrial by-product valorization.
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Affiliation(s)
- Quentin Carboué
- Vinovalie, ZA Les Portes du Tarn, 81370, Saint-Sulpice-la-Pointe, France. .,Aix Marseille Université, Avignon Université, CNRS, IRD, IMBE, Marseille, France.
| | - Catherine Rébufa
- Aix Marseille Université, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Rayhane Hamrouni
- Aix Marseille Université, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Sevastianos Roussos
- Aix Marseille Université, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Isabelle Bombarda
- Aix Marseille Université, Avignon Université, CNRS, IRD, IMBE, Marseille, France.
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