1
|
Rahmati F, Sethi D, Shu W, Asgari Lajayer B, Mosaferi M, Thomson A, Price GW. Advances in microbial exoenzymes bioengineering for improvement of bioplastics degradation. CHEMOSPHERE 2024; 355:141749. [PMID: 38521099 DOI: 10.1016/j.chemosphere.2024.141749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 03/06/2024] [Accepted: 03/16/2024] [Indexed: 03/25/2024]
Abstract
Plastic pollution has become a major global concern, posing numerous challenges for the environment and wildlife. Most conventional ways of plastics degradation are inefficient and cause great damage to ecosystems. The development of biodegradable plastics offers a promising solution for waste management. These plastics are designed to break down under various conditions, opening up new possibilities to mitigate the negative impact of traditional plastics. Microbes, including bacteria and fungi, play a crucial role in the degradation of bioplastics by producing and secreting extracellular enzymes, such as cutinase, lipases, and proteases. However, these microbial enzymes are sensitive to extreme environmental conditions, such as temperature and acidity, affecting their functions and stability. To address these challenges, scientists have employed protein engineering and immobilization techniques to enhance enzyme stability and predict protein structures. Strategies such as improving enzyme and substrate interaction, increasing enzyme thermostability, reinforcing the bonding between the active site of the enzyme and substrate, and refining enzyme activity are being utilized to boost enzyme immobilization and functionality. Recently, bioengineering through gene cloning and expression in potential microorganisms, has revolutionized the biodegradation of bioplastics. This review aimed to discuss the most recent protein engineering strategies for modifying bioplastic-degrading enzymes in terms of stability and functionality, including enzyme thermostability enhancement, reinforcing the substrate binding to the enzyme active site, refining with other enzymes, and improvement of enzyme surface and substrate action. Additionally, discovered bioplastic-degrading exoenzymes by metagenomics techniques were emphasized.
Collapse
Affiliation(s)
- Farzad Rahmati
- Department of Microbiology, Faculty of Science, Qom Branch, Islamic Azad University (IAU), Qom 37185364, Iran
| | - Debadatta Sethi
- Sugarcane Research Station, Odisha University of Agriculture and Technology, Nayagarh, India
| | - Weixi Shu
- Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada
| | | | - Mohammad Mosaferi
- Health and Environment Research Center, Tabriz Health Services Management Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Allan Thomson
- Perennia Food and Agriculture Corporation., 173 Dr. Bernie MacDonald Dr., Bible Hill, Truro, NS, B6L 2H5, Canada
| | - G W Price
- Faculty of Agriculture, Dalhousie University, Truro, NS, B2N 5E3, Canada.
| |
Collapse
|
2
|
Duan X, Jiang Z, Liu Y, Yan Q, Xiang M, Yang S. High-level expression of codon-optimized Thielavia terrestris cutinase suitable for ester biosynthesis and biodegradation. Int J Biol Macromol 2019; 135:768-775. [DOI: 10.1016/j.ijbiomac.2019.05.173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/22/2019] [Accepted: 05/22/2019] [Indexed: 10/26/2022]
|
3
|
Muley AB, Chaudhari SA, Mulchandani KH, Singhal RS. Extraction and characterization of chitosan from prawn shell waste and its conjugation with cutinase for enhanced thermo-stability. Int J Biol Macromol 2018; 111:1047-1058. [PMID: 29366886 DOI: 10.1016/j.ijbiomac.2018.01.115] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 01/01/2018] [Accepted: 01/17/2018] [Indexed: 10/18/2022]
Abstract
The present article describes extraction of chitosan from prawn shells waste and its application in thermal stabilization of Fusarium sp. ICT SAC1 cutinase by non-covalent and covalent conjugation. Extracted chitosan represented 78.40% degree of deacetylation (DDA), a molecular weight of 173 kDa and was soluble in 1% acetic acid with 2.8 ± 0.15% insoluble matter. The structural (FTIR, NMR and XRD) and thermal characterization (DSC and TGA) indicated unique properties for chitosan. Plausible chitosan structure was also deduced. The water and fat binding capacities were 923% and 598.05% while 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) and 1,1-diphenyl-2-picrylhydrzyl radicals scavenging activity was 60.62 and 11.83 μM Trolox-Equivalent/ml. The Km and Vmax values of free cutinase were 0.82 mM and 20.64 mM/min which increased by 14.63 and 17.07%; and 27.18 and 43.94% after non-covalent and covalent conjugation, respectively. A marginal increment in thermal inactivation constants and energy (kd, t1/2, D and Ed value) were also noticed for cutinase-chitosan conjugates. The enthalpy, free energy and entropy values increased marginally in covalent conjugate vis-à-vis non-covalent conjugated and free cutinase. A reduction in α-helix, random coils and β-sheets content was noted after conjugation.
Collapse
Affiliation(s)
- Abhijeet B Muley
- Food Engineering and Technology Department, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Sandeep A Chaudhari
- Food Engineering and Technology Department, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Ketan H Mulchandani
- Food Engineering and Technology Department, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Rekha S Singhal
- Food Engineering and Technology Department, Institute of Chemical Technology, Matunga, Mumbai 400019, India.
| |
Collapse
|
4
|
Adıgüzel AO, Tunçer M. Purification and characterization of cutinase from Bacillus sp. KY0701 isolated from plastic wastes. Prep Biochem Biotechnol 2017; 47:925-933. [DOI: 10.1080/10826068.2017.1365245] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Münir Tunçer
- Department of Biology, University of Mersin, Mersin, Turkey
| |
Collapse
|
5
|
Muley AB, Chaudhari SA, Singhal RS. Non-covalent conjugation of cutinase from Fusarium sp. ICT SAC1 with pectin for enhanced stability: Process minutiae, kinetics, thermodynamics and structural study. Int J Biol Macromol 2017; 102:729-740. [DOI: 10.1016/j.ijbiomac.2017.04.072] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 04/17/2017] [Accepted: 04/20/2017] [Indexed: 12/15/2022]
|
6
|
Kumari V, Kumar S, Kaur I, Bhalla TC. Graft copolymerization of acrylamide on chitosan-co-chitin and its application for immobilization of Aspergillus sp. RL2Ct cutinase. Bioorg Chem 2016; 70:34-43. [PMID: 27866660 DOI: 10.1016/j.bioorg.2016.11.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 11/08/2016] [Accepted: 11/09/2016] [Indexed: 11/26/2022]
Abstract
The synthesis of chitosan (Chs) and chitin (Chi) copolymer and grafting of acrylamide (AAm) onto the synthesized copolymer have been carried out by chemical methods. The grafted copolymer was characterized by FTIR, SEM and XRD. The extracellular cutinase of Aspergillus sp. RL2Ct (E.C. 3.1.1.3) was purified to 4.46 fold with 16.1% yield using acetone precipitation and DEAE sepharose ion exchange chromatography. It was immobilized by adsorption on the grafted copolymer. The immobilized enzyme was found to be more stable then the free enzyme and has a good binding efficiency (78.8%) with the grafted copolymer. The kinetic parameters KM and Vmax for free and immobilized cutinase were found to be 0.55mM and 1410μmolmin-1mg-1 protein, 2.99mM and 996μmolmin-1mg-1 protein, respectively. The immobilized cutinase was recycled 64 times without considerable loss of activity. The matrix (Chs-co-Chi-g-poly(AAm)) prepared and cutinase immobilized on the matrix have potential applications in enzyme immobilization and organic synthesis respectively.
Collapse
Affiliation(s)
- Vijaya Kumari
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Sandeep Kumar
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Inderjeet Kaur
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
| | - Tek Chand Bhalla
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India.
| |
Collapse
|
7
|
Nikolaivits E, Kokkinou A, Karpusas M, Topakas E. Microbial host selection and periplasmic folding in Escherichia coli affect the biochemical characteristics of a cutinase from Fusarium oxysporum. Protein Expr Purif 2016; 127:1-7. [DOI: 10.1016/j.pep.2016.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 06/09/2016] [Accepted: 06/10/2016] [Indexed: 10/21/2022]
|
8
|
Abstract
AbstractCutin hydrolase (EC 3.1.1.74), an extracellular polyesterase found in pollens, bacteria and fungi, is an efficient catalyst that exhibits hydrolytic activity on a variety of water-soluble esters, synthetic fibers, plastics and triglycerides. Thus, cutinase can be used in various applications such as ester synthesis, bio-scouring, food and detergent industries. Ancut2 is one of five genes encoding cutinases present in the Aspergillus niger ATCC 10574 genome. The cDNA of Ancut2 comprising of an open reading frame of 816 bp encoding a protein of 271 amino acid residues, was isolated and expressed in Pichia pastoris. The partially purified recombinant cutinase exhibited a molecular mass of approximately 40 kDa. The enzyme showed highest activity at 40°C with a preference for acidic pH (5.0-6.0). AnCUT2 showed hydrolytic activity towards various p-nitrophenyl esters with preference towards shorter chain esters such as p-nitrophenyl butyrate (C4). Scanning Electron Microscopy demonstrated that AnCUT2 was capable of modifying surfaces of synthetic polycaprolactone and polyethylene terephthalate plastics. The properties of this enzyme suggest that it may be applied in synthetic fiber modification and fruit processing industries.
Collapse
|
9
|
Structural and functional studies of a Fusarium oxysporum cutinase with polyethylene terephthalate modification potential. Biochim Biophys Acta Gen Subj 2015; 1850:2308-17. [DOI: 10.1016/j.bbagen.2015.08.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Revised: 08/09/2015] [Accepted: 08/14/2015] [Indexed: 01/01/2023]
|
10
|
Xu H, Yan Q, Duan X, Yang S, Jiang Z. Characterization of an acidic cold-adapted cutinase from Thielavia terrestris and its application in flavor ester synthesis. Food Chem 2015; 188:439-45. [PMID: 26041215 DOI: 10.1016/j.foodchem.2015.05.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 04/14/2015] [Accepted: 05/05/2015] [Indexed: 10/23/2022]
Abstract
An acidic cutinase (TtcutB) from Thielavia terrestris CAU709 was purified to apparent homogeneity with 983 Um g(-1) specific activity. The molecular mass of the enzyme was estimated to be 27.3 and 27.9 kDa by SDS-PAGE and gel filtration, respectively. A peptide sequence homology search revealed no homologous cutinases from T. terrestris, except for one putative cutinase gene (XP003656017.1), indicating that TtcutB is a novel enzyme. TtcutB exhibited an acidic pH optimum of 4.0, and stability at pH 2.5-10.5. Optimal activity was at 55 °C, it was stable up to 65 °C, and retained over 30% activity at 0 °C. Km values toward p-nitrophenyl (pNP) acetate, pNP-butyrate and pNP-caproate were 8.3, 1.1 and 0.88 mM, respectively. The cutinase exhibited strong synthetic activity on flavor ester butyl butyrate under non-aqueous environment, and the highest esterification efficiency of 95% was observed under the optimized reaction conditions. The enzyme's unique biochemical properties suggest great potential in flavor esters-producing industries.
Collapse
Affiliation(s)
- Haibo Xu
- Department of Biotechnology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Qiaojuan Yan
- Bioresource Utilization Laboratory, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Xiaojie Duan
- Department of Biotechnology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Shaoqing Yang
- Department of Biotechnology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Zhengqiang Jiang
- Department of Biotechnology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| |
Collapse
|
11
|
Hegde K, Dasu VV. Structural Stability and Unfolding Properties of Cutinases from Thermobifida fusca. Appl Biochem Biotechnol 2014; 174:803-19. [DOI: 10.1007/s12010-014-1037-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 06/19/2014] [Indexed: 10/24/2022]
|
12
|
Seman WW, Bakar S, Bukhari N, Gaspar S, Othman R, Nathan S, Mahadi N, Jahim J, Murad A, Bakar FA. High level expression of Glomerella cingulata cutinase in dense cultures of Pichia pastoris grown under fed-batch conditions. J Biotechnol 2014; 184:219-28. [DOI: 10.1016/j.jbiotec.2014.05.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 05/13/2014] [Accepted: 05/19/2014] [Indexed: 10/25/2022]
|