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Lin J, Sun K, Ma L, Li C, Tong H, Wang Z. Enzymatic degradation of polybutylene succinate by recombinant cutinase cloned from Paraphoma chrysanthemicola. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2025; 375:124288. [PMID: 39854902 DOI: 10.1016/j.jenvman.2025.124288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2024] [Revised: 12/23/2024] [Accepted: 01/19/2025] [Indexed: 01/27/2025]
Abstract
Polybutylene succinate (PBS), a biodegradable plastic, can be used as an alternative to traditional plastics to effectively solve the growing plastic pollution. Although PBS is theoretically completely biodegradable, slow degradation remains a problem in practical applications, leading to the possibility of environmental pollution. In this study, after the PBS degradation ability of the fungus Paraphoma chrysanthemicola was determined, a P. chrysanthemicola cutinase (PCC) gene was cloned and expressed in Pichia pastoris and its PBS degradation ability was further characterized. With a molecular weight of approximately 20 kDa, PCC showed good PBS degradation activity at pH 6.0-8.0 and 20-40 °C. Metal ions have different effects on PCC activity. Specifically, Ca2+, Zn2+, and Co2+ promoted enzyme activity, whereas Cu2+, Fe2+, and Ni2+ inhibited enzyme activity. The weight loss of the PBS films was greater than 50% after 60 h of PCC treatment, and scanning electron microscopy revealed the appearance of cracks on the surface of the PBS films during the degradation process, which deepened with the progression of degradation time. This PBS degradation by PCC occurs via surface erosion, with the resulting degradation products being mainly 1,4-succinic acid and succinic acid butanediyl ester. This study provides a preliminary elucidation of the enzymatic mechanisms involved in PBS degradation by PCC and offers insights into the development of more effective biotechnological approaches to address the environmental challenges associated with plastic waste.
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Affiliation(s)
- Jingwei Lin
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, 110866, China
| | - Kexin Sun
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, 110866, China
| | - Li Ma
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, 110866, China
| | - Chunwang Li
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, 110866, China
| | - Haibin Tong
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.
| | - Zhanyong Wang
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, 110866, China.
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Wu S, Hooks D, Brightwell G. Current Understanding on the Heterogenous Expression of Plastic Depolymerising Enzymes in Pichia pastoris. Bioengineering (Basel) 2025; 12:68. [PMID: 39851342 PMCID: PMC11760480 DOI: 10.3390/bioengineering12010068] [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: 12/04/2024] [Revised: 01/01/2025] [Accepted: 01/04/2025] [Indexed: 01/26/2025] Open
Abstract
Enzymatic depolymerisation is increasingly recognised as a reliable and environmentally friendly method. The development of this technology hinges on the availability of high-quality enzymes and associated bioreaction systems for upscaling biodegradation. Microbial heterologous expression systems have been studied for meeting this demand. Among these systems, the Pichia pastoris expression system has emerged as a widely used platform for producing secreted heterologous proteins. This article provides an overview of studies involving the recombinant expression of polymer-degrading enzymes using the P. pastoris expression system. Research on P. pastoris expression of interested enzymes with depolymerising ability, including cutinase, lipase, and laccase, are highlighted in the review. The key factors influencing the heterologous expression of polymer-degrading enzymes in P. pastoris are discussed, shedding light on the challenges and opportunities in the development of depolymerising biocatalysts through the P. pastoris expression system.
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Affiliation(s)
- Shuyan Wu
- AgResearch Ltd., Grasslands, Palmerston North 4442, New Zealand; (D.H.); (G.B.)
| | - David Hooks
- AgResearch Ltd., Grasslands, Palmerston North 4442, New Zealand; (D.H.); (G.B.)
| | - Gale Brightwell
- AgResearch Ltd., Grasslands, Palmerston North 4442, New Zealand; (D.H.); (G.B.)
- New Zealand Food Safety Science and Research Centre, Tennent Drive, Massey University, Palmerston North 4474, New Zealand
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Sahu S, Kaur A, Khatri M, Singh G, Arya SK. A review on cutinases enzyme in degradation of microplastics. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 347:119193. [PMID: 37797518 DOI: 10.1016/j.jenvman.2023.119193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/12/2023] [Accepted: 09/28/2023] [Indexed: 10/07/2023]
Abstract
From the surface of the earth to the depths of the ocean, microplastics are a hazard for both aquatic and terrestrial habitats. Due to their small size and vast expanse, they can further integrate into living things. The fate of microplastics in the environment depends upon the biotic components such as microorganisms which have potential enzymes to degrade the microplastics. As a result, scientists are interested in using microorganisms like bacteria, fungi, and others to remediate microplastic. These microorganisms release the cutinase enzyme, which is associated with the enzymatic breakdown of microplastics and plastic films. Yet, numerous varieties of microplastics exist in the environment and their contaminants act as a significant challenge in degrading microplastics. The review discusses the cutinases enzyme degradation strategies and potential answers to deal with existing and newly generated microplastic waste - polyethylene (PE), polyethylene terephthalate (PET), poly-ε-caprolactone (PCL), polyurethanes (PU), and polybutylene succinate (PBS), along with their degradation pathways. The potential of cutinase enzymes from various microorganisms can effectively act to remediate the global problem of microplastic pollution.
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Affiliation(s)
- Sudarshan Sahu
- Department of Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Anupreet Kaur
- Department of Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Madhu Khatri
- Department of Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Gursharan Singh
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Shailendra Kumar Arya
- Department of Biotechnology Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh, India.
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Romano A, Varriale S, Pezzella C, Totaro G, Andanson JM, Verney V, Sisti L. Natural deep eutectic solvents as thermostabilizer for Humicola insolens cutinase. N Biotechnol 2023:S1871-6784(23)00027-4. [PMID: 37257817 DOI: 10.1016/j.nbt.2023.05.006] [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: 12/12/2022] [Revised: 03/07/2023] [Accepted: 05/27/2023] [Indexed: 06/02/2023]
Abstract
As a new generation of green solvents, deep eutectic solvents (DESs) are considered a promising alternative to current harsh organic solvents and find application in many chemical processing methods such as extraction and synthesis. DESs, normally formed by two or more components via various hydrogen bond interactions, offer high potential as medium for biocatalysis reactions where they can improve efficiency by enhancing substrate solubility and the activity and stability of the enzymes. In the current study, the stabilization of Humicola insolens cutinase (HiC) in natural deep eutectic solvents (NADESs) was assessed. The best hydrogen bond donor among sorbitol, xylitol, erythritol, glycerol and ethylene glycol, and the best acceptor among betaine, choline chloride, choline acetate, choline dihydrogen citrate and tetramethylammonium chloride, were selected, evaluating binding energies and molecular orientations through molecular docking simulations, and finally used to prepare NADES aqueous solutions. The effects of component ratio and NADES concentration on HiC thermostability at 90 °C were also investigated. The choline dihydrogen citrate:xylitol, in a 1:1 ratio with a 20wt% concentration, was selected as the best combination in stabilizing HiC, increasing its half-life three-fold.
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Affiliation(s)
- Angela Romano
- Department of Civil, Chemical Environmental and Materials Engineering, University of Bologna, via Terracini 28, 40131 Bologna Italy
| | | | - Cinzia Pezzella
- Biopox srl, Viale Maria Bakunin 12, 80125 Naples, Italy; Department of Chemical Sciences, University of Naples Federico II, via Cintia 4, 80126 Naples, Italy
| | - Grazia Totaro
- Department of Civil, Chemical Environmental and Materials Engineering, University of Bologna, via Terracini 28, 40131 Bologna Italy
| | - Jean-Michel Andanson
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, ICCF, F-63000 Clermont-Ferrand, France
| | - Vincent Verney
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, ICCF, F-63000 Clermont-Ferrand, France
| | - Laura Sisti
- Department of Civil, Chemical Environmental and Materials Engineering, University of Bologna, via Terracini 28, 40131 Bologna Italy
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Jiddah Usman N, Rodrid K, Sabo Ajingi Y, Tuncharoen N, Meegnoen K, Pason P, Jongruja N. Characterization of recombinant cutinase from Thermobifida cellulosilytica and its application in tomato cutin degradation. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2023. [DOI: 10.1016/j.bcab.2023.102603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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A Review of the Fungi That Degrade Plastic. J Fungi (Basel) 2022; 8:jof8080772. [PMID: 35893140 PMCID: PMC9330918 DOI: 10.3390/jof8080772] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 11/25/2022] Open
Abstract
Plastic has become established over the world as an essential basic need for our daily life. Current global plastic production exceeds 300 million tons annually. Plastics have many characteristics such as low production costs, inertness, relatively low weight, and durability. The primary disadvantage of plastics is their extremely slow natural degradation. The latter results in an accumulation of plastic waste in nature. The amount of plastic waste as of 2015 was 6300 million tons worldwide, and 79% of this was placed in landfills or left in the natural environment. Moreover, recent estimates report that 12,000 million tons of plastic waste will have been accumulated on the earth by 2050. Therefore, it is necessary to develop an effective plastic biodegradation process to accelerate the natural degradation rate of plastics. More than 400 microbes have been identified as capable of plastic degradation. This is the first paper of the series on plastic-degrading fungi. This paper provides a summary of the current global production of plastic and plastic waste accumulation in nature. A list is given of all the plastic-degrading fungi recorded thus far, based on the available literature, and comments are made relating to the major fungal groups. In addition, the phylogenetic relationships of plastic-degrading fungi were analyzed using a combined ITS, LSU, SSU, TEF, RPB1, and RPB2 dataset consisting of 395 strains. Our results confirm that plastic-degrading fungi are found in eleven classes in the fungal phyla Ascomycota (Dothideomycetes, Eurotiomycetes, Leotiomycetes, Saccharomycetes, and Sordariomycetes), Basidiomycota (Agaricomycetes, Microbotryomycetes, Tremellomycetes, Tritirachiomycetes, and Ustilaginomy-cetes), and Mucoromycota (Mucoromycetes). The taxonomic placement of plastic-degrading fungal taxa is briefly discussed. The Eurotiomycetes include the largest number of plastic degraders in the kingdom Fungi. The results presented herein are expected to influence the direction of future research on similar topics in order to find effective plastic-degrading fungi that can eliminate plastic wastes. The next publication of the series on plastic-degrading fungi will be focused on major metabolites, degradation pathways, and enzyme production in plastic degradation by fungi.
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Liu Z, Li G, Zhang F, Wu J. Enhanced biodegradation activity towards poly(ethyl acrylate) and poly(vinyl acetate) by anchor peptide assistant targeting. J Biotechnol 2022; 349:47-52. [DOI: 10.1016/j.jbiotec.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 03/03/2022] [Accepted: 03/10/2022] [Indexed: 11/28/2022]
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Ogunyewo OA, Upadhyay P, Rajacharya GH, Okereke OE, Faas L, Gómez LD, McQueen-Mason SJ, Yazdani SS. Accessory enzymes of hypercellulolytic Penicillium funiculosum facilitate complete saccharification of sugarcane bagasse. BIOTECHNOLOGY FOR BIOFUELS 2021; 14:171. [PMID: 34446097 PMCID: PMC8394629 DOI: 10.1186/s13068-021-02020-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 08/15/2021] [Indexed: 05/26/2023]
Abstract
BACKGROUND Sugarcane bagasse (SCB) is an abundant feedstock for second-generation bioethanol production. This complex biomass requires an array of carbohydrate active enzymes (CAZymes), mostly from filamentous fungi, for its deconstruction to monomeric sugars for the production of value-added fuels and chemicals. In this study, we evaluated the repertoire of proteins in the secretome of a catabolite repressor-deficient strain of Penicillium funiculosum, PfMig188, in response to SCB induction and examined their role in the saccharification of SCB. RESULTS A systematic approach was developed for the cultivation of the fungus with the aim of producing and understanding arrays of enzymes tailored for saccharification of SCB. To achieve this, the fungus was grown in media supplemented with different concentrations of pretreated SCB (0-45 g/L). The profile of secreted proteins was characterized by enzyme activity assays and liquid chromatography-tandem mass spectrometry (LC-MS/MS). A total of 280 proteins were identified in the secretome of PfMig188, 46% of them being clearly identified as CAZymes. Modulation of the cultivation media with SCB up to 15 g/L led to sequential enhancement in the secretion of hemicellulases and cell wall-modifying enzymes, including endo-β-1,3(4)-glucanase (GH16), endo-α-1,3-glucanase (GH71), xylanase (GH30), β-xylosidase (GH5), β-1,3-galactosidase (GH43) and cutinase (CE5). There was ~ 122% and 60% increases in β-xylosidase and cutinase activities, respectively. There was also a 36% increase in activities towards mixed-linked glucans. Induction of these enzymes in the secretome improved the saccharification performance to 98% (~ 20% increase over control), suggesting their synergy with core cellulases in accessing the recalcitrant region of SCB. CONCLUSION Our findings provide an insight into the enzyme system of PfMig188 for degradation of complex biomass such as SCB and highlight the importance of adding SCB to the culture medium to optimize the secretion of enzymes specific for the saccharification of sugarcane bagasse.
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Affiliation(s)
- Olusola A Ogunyewo
- Microbial Engineering Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
- DBT-ICGEB Centre for Advanced Bioenergy Research, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Pooja Upadhyay
- Microbial Engineering Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Girish H Rajacharya
- Microbial Engineering Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
- DBT-ICGEB Centre for Advanced Bioenergy Research, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Omoaruemike E Okereke
- Microbial Engineering Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
- Biotechnology Advanced Research Centre, Sheda Science and Technology Complex (SHESTCO), Abuja, Nigeria
| | - Laura Faas
- Department of Biology, Centre for Novel Agricultural Products, CNAP, University of York, York, YO10 5DD, UK
| | - Leonardo D Gómez
- Department of Biology, Centre for Novel Agricultural Products, CNAP, University of York, York, YO10 5DD, UK
| | - Simon J McQueen-Mason
- Department of Biology, Centre for Novel Agricultural Products, CNAP, University of York, York, YO10 5DD, UK
| | - Syed Shams Yazdani
- Microbial Engineering Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India.
- DBT-ICGEB Centre for Advanced Bioenergy Research, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India.
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Kumar V, Pathak P, Harsh NSK, Bhardwaj NK. Biodeinking: an eco-friendly alternative for chemicals based recycled fiber processing. PHYSICAL SCIENCES REVIEWS 2021. [DOI: 10.1515/psr-2019-0045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Recycling of recovered paper is an inevitable process for saving resources and the environment. Due to strict forest conservation regulations and limitations of the agro-forestry sector, the paper industry is facing the woody fiber crisis for decades. The recycling of waste paper for its utilization as a source of cellulosic fibers for papermaking is a resource-saving and eco-friendly approach and is a need of time. Deinking is an important stage in the recycling of recovered paper. In the conventional deinking process, chemicals have been used for removal of inks and other impurities from waste paper pulp slurry with some certain drawbacks like deinking inefficiency, fiber damage and generation of chemicals and fiber-rich effluent. The application of enzymes for deinking purposes is known as biodeinking and is considered as the potent and environmentally friendly deinking approach. The present write-up provides comprehensive information on various aspects of biodeinking.
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Affiliation(s)
- Varun Kumar
- Nanotechnology & Advanced Biomaterials , Avantha Centre for Industrial Research & Development , Paper mill campus , Yamuna Nagar , Haryana 135001, India
| | - Puneet Pathak
- Nanotechnology & Advanced Biomaterials , Avantha Centre for Industrial Research & Development , Paper mill campus , Yamuna Nagar , Haryana 135001, India
| | - Nirmal Sudhir Kumar Harsh
- Forest Pathology Division , Forest Research Institute Dehradun , Dehradun , Uttarakhand , 248006 India
| | - Nishi Kant Bhardwaj
- Directorate , Avantha Centre for Industrial Research & Development , Yamuna Nagar 135001 , Haryana , India
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Qiu J, Yang H, Yan Z, Shi Y, Zou D, Ding L, Shao Y, Li L, Khan U, Sun S, Xin Z. Characterization of XtjR8: A novel esterase with phthalate-hydrolyzing activity from a metagenomic library of lotus pond sludge. Int J Biol Macromol 2020; 164:1510-1518. [PMID: 32755708 DOI: 10.1016/j.ijbiomac.2020.07.317] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 11/21/2022]
Abstract
A fosmid metagenomic library containing 9.7 × 104 clones was constructed. A novel esterase, XtjR8, was isolated through functional screening. XtjR8 shared the maximum amino acid identity (44%) with acetyl-hydrolase from Streptomyces hygroscopicus, and was classified into family IV esterase. XtjR8 exhibited the highest hydrolytic activity for p-nitrophenyl acetate at 40 °C and pH 8.0, and presented more than 40% activity from 20 °C to 80 °C. More importantly, XtjR8 displayed the ability to hydrolyze both phthalate monoesters and diesters, this feature is extremely rare among previously reported esterases. Site-directed mutagenesis experiments revealed that the catalytic triad residues were Ser152, Glu246, and His276. Among them, Ser152 formed a hydrogen bond with dibutyl phthalate (DBP) by molecular docking, Gly84, Gly85, and Leu248 of conserved motifs formed hydrophobic interactions with DBP, respectively, which were important for the catalytic activity. Considering its wide range of temperature and hydrolytic potential toward phthalate esters, XtjR8 will be served as an interesting candidate for biodegradation and industrial applications.
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Affiliation(s)
- Jiarong Qiu
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Haiyan Yang
- College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, PR China
| | - Zhenzhen Yan
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yaning Shi
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Dandan Zou
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Liping Ding
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yuting Shao
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Longxiang Li
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Ummara Khan
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Shengwei Sun
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhihong Xin
- Key Laboratory of Food Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.
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Multifunctional and fully aliphatic biodegradable polyurethane foam as porous biomass carrier for biofiltration. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109156] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shi K, Su T, Wang Z. Comparison of poly(butylene succinate) biodegradation by Fusarium solani cutinase and Candida antarctica lipase. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.04.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Production of cutinase by solid-state fermentation and its use as adjuvant in bioherbicide formulation. Bioprocess Biosyst Eng 2019; 42:829-838. [DOI: 10.1007/s00449-019-02086-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 01/29/2019] [Indexed: 11/27/2022]
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Liu M, Zhang T, Long L, Zhang R, Ding S. Efficient enzymatic degradation of poly (ɛ-caprolactone) by an engineered bifunctional lipase-cutinase. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2018.12.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Cutinases are α/β hydrolases, and their role in nature is the degradation of cutin. Such enzymes are usually produced by phytopathogenic microorganisms in order to penetrate their hosts. The first focused studies on cutinases started around 50 years ago. Since then, numerous cutinases have been isolated and characterized, aiming at the elucidation of their structure–function relations. Our deeper understanding of cutinases determines the applications by which they could be utilized; from food processing and detergents, to ester synthesis and polymerizations. However, cutinases are mainly efficient in the degradation of polyesters, a natural function. Therefore, these enzymes have been successfully applied for the biodegradation of plastics, as well as for the delicate superficial hydrolysis of polymeric materials prior to their functionalization. Even though research on this family of enzymes essentially began five decades ago, they are still involved in many reports; novel enzymes are being discovered, and new fields of applications arise, leading to numerous related publications per year. Perhaps the future of cutinases lies in their evolved descendants, such as polyesterases, and particularly PETases. The present article reviews the biochemical and structural characteristics of cutinases and cutinase-like hydrolases, and their applications in the field of bioremediation and biocatalysis.
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