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Maccow A, Kulyk H, Severac E, Morel S, Moulis C, Boissonnat G, Remaud-Simeon M, Guieysse D. A chemo-enzymatic pathway to expand cellooligosaccharide chemical space through amine bond introduction. Carbohydr Polym 2024; 338:122168. [PMID: 38763718 DOI: 10.1016/j.carbpol.2024.122168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 04/10/2024] [Accepted: 04/14/2024] [Indexed: 05/21/2024]
Abstract
Enzymatic functionalization of oligosaccharides is a useful and environmentally friendly way to expand their structural chemical space and access to a wider range of applications in the health, food, feed, cosmetics and other sectors. In this work, we first tested the laccase/TEMPO system to generate oxidized forms of cellobiose and methyl β-D-cellobiose, and obtained high yields of novel anionic disaccharides (>60 %) at pH 6.0. Laccase/TEMPO system was then applied to a mix of cellooligosaccharides and to pure D-cellopentaose. The occurrence of carbonyl and carboxyl groups in the oxidation products was shown by LC-HRMS, MALDI-TOF and reductive amination of the carbonyl groups was attempted with p-toluidine a low molar mass amine to form the Schiff base, then reduced by 2-picoline borane to generate a more stable amine bond. The new grafted products were characterized by LC-HRMS, LC-UV-MS/MS and covalent grafting was evidenced. Next, the same procedure was adopted to successfully graft a dye, the rhodamine 123, larger in size than toluidine. This two-step chemo-enzymatic approach, never reported before, for functionalization of oligosaccharides, offers attractive opportunities to anionic cellooligosaccharides and derived glucoconjugates of interest for biomedical or neutraceutical applications. It also paves the way for more environmentally-friendly cellulose fabric staining procedures.
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Affiliation(s)
- Awilda Maccow
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135 Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France
| | - Hanna Kulyk
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135 Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France; MetaboHUB-MetaToul, National Infrastructure of Metabolomics and Fluxomics, France.
| | - Etienne Severac
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135 Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France.
| | - Sandrine Morel
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135 Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France.
| | - Claire Moulis
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135 Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France.
| | | | - Magali Remaud-Simeon
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135 Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France.
| | - David Guieysse
- Biotechnology Institute (TBI), Université de Toulouse, CNRS, INRAE, INSA, 135 Avenue de Rangueil, CEDEX 04, F-31077 Toulouse, France.
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2
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Fernández-Santos J, Valls C, Cusola O, Roncero MB. Periodate oxidation of nanofibrillated cellulose films for active packaging applications. Int J Biol Macromol 2024; 267:131553. [PMID: 38621569 DOI: 10.1016/j.ijbiomac.2024.131553] [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: 02/20/2024] [Revised: 04/05/2024] [Accepted: 04/10/2024] [Indexed: 04/17/2024]
Abstract
An alternative packaging material based on cellulose that possesses excellent barrier properties and is potentially useful for active packaging has been developed. Cellulose nanofibril was efficiently and selectively oxidized with sodium periodate generating reactive aldehyde groups. These groups formed hemiacetal and hemialdal bonds during film formation and, consequently, highly transparent, elastic and strong films were created even under moisture saturation conditions. The periodate oxidation treatment additionally decreased the polarity of the films and considerably enhanced their water barrier properties. Thus, the water contact angle of films treated for 3 and 6 h was 97° and 102°, their water drop test value was higher than in untreated film (viz., 138 and 141 min with 3 and 6 h of treatment) and their water vapour transmission rate was substantially better (3.31 and 0.78 g m-2 day-1 with 3 and 6 h, respectively). The presence of aldehyde groups facilitated immobilization of the enzyme laccase, which efficiently captures oxygen and prevents food decay as a result. Laccase-containing films oxidized 80 % of Methylene Blue colorant and retained their enzymatic activity after storage for 1 month and 12 reuse cycles, opening the door to the possible creation of a reusable packaging to replace the single-use packaging.
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Affiliation(s)
- Julia Fernández-Santos
- CELBIOTECH_Paper Engineering Research Group, Universitat Politècnica de Catalunya_BarcelonaTech, 08222 Terrassa, Spain.
| | - Cristina Valls
- CELBIOTECH_Paper Engineering Research Group, Universitat Politècnica de Catalunya_BarcelonaTech, 08222 Terrassa, Spain.
| | - Oriol Cusola
- CELBIOTECH_Paper Engineering Research Group, Universitat Politècnica de Catalunya_BarcelonaTech, 08222 Terrassa, Spain.
| | - M Blanca Roncero
- CELBIOTECH_Paper Engineering Research Group, Universitat Politècnica de Catalunya_BarcelonaTech, 08222 Terrassa, Spain.
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Aza P, Camarero S. Fungal Laccases: Fundamentals, Engineering and Classification Update. Biomolecules 2023; 13:1716. [PMID: 38136587 PMCID: PMC10741624 DOI: 10.3390/biom13121716] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
Multicopper oxidases (MCOs) share a common catalytic mechanism of activation by oxygen and cupredoxin-like folding, along with some common structural determinants. Laccases constitute the largest group of MCOs, with fungal laccases having the greatest biotechnological applicability due to their superior ability to oxidize a wide range of aromatic compounds and lignin, which is enhanced in the presence of redox mediators. The adaptation of these versatile enzymes to specific application processes can be achieved through the directed evolution of the recombinant enzymes. On the other hand, their substrate versatility and the low sequence homology among laccases make their exact classification difficult. Many of the ever-increasing amounts of MCO entries from fungal genomes are automatically (and often wrongly) annotated as laccases. In a recent comparative genomic study of 52 basidiomycete fungi, MCO classification was revised based on their phylogeny. The enzymes clustered according to common structural motifs and theoretical activities, revealing three novel groups of laccase-like enzymes. This review provides an overview of the structure, catalytic activity, and oxidative mechanism of fungal laccases and how their biotechnological potential as biocatalysts in industry can be greatly enhanced by protein engineering. Finally, recent information on newly identified MCOs with laccase-like activity is included.
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Affiliation(s)
| | - Susana Camarero
- Margarita Salas Center for Biological Research, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain;
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4
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He H, Teng H, An F, Wang Y, Qiu R, Chen L, Song H. Nanocelluloses review: Preparation, biological properties, safety, and applications in the food field. FOOD FRONTIERS 2023. [DOI: 10.1002/fft2.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Hong He
- College of Food Science Fujian Agriculture and Forestry University Fuzhou Fujian China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch Fuzhou Fujian China
| | - Hui Teng
- College of Food Science and Technology Guangdong Ocean University Zhanjiang China
| | - Fengping An
- College of Food Science Fujian Agriculture and Forestry University Fuzhou Fujian China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch Fuzhou Fujian China
| | - Yiwei Wang
- College of Food Science Fujian Agriculture and Forestry University Fuzhou Fujian China
| | - Renhui Qiu
- College of Material Engineering Fujian Agriculture and Forestry University Fuzhou China
| | - Lei Chen
- College of Food Science and Technology Guangdong Ocean University Zhanjiang China
| | - Hongbo Song
- College of Food Science Fujian Agriculture and Forestry University Fuzhou Fujian China
- Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch Fuzhou Fujian China
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Ngo NTN, Linares-Pastén JA, Grey C, Adlercreutz P. Synthesis of novel oligomeric anionic alkyl glycosides using laccase/TEMPO oxidation and cyclodextrin glucanotransferase (CGTase)-catalyzed transglycosylation. Biotechnol Bioeng 2021; 118:2548-2558. [PMID: 33788276 DOI: 10.1002/bit.27770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/19/2021] [Accepted: 03/28/2021] [Indexed: 11/07/2022]
Abstract
Modification of alkyl glycosides, to alter their properties and widen the scope of potential applications, is of considerable interest. Here, we report the synthesis of new anionic alkyl glycosides with long carbohydrate chains, using two different approaches: laccase/2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidation of a long-carbohydrate-chain alkyl glycoside and cyclodextrin glucanotransferase (CGTase)-catalyzed elongation of anionic alkyl glycosides. The laccase/TEMPO oxidation of dodecyl β- d-maltooctaoside proceeded efficiently with the formation of aldehyde and acid products. However, depolymerization occurred to a large extent, limiting the product yield and purity. On the other hand, CGTase-catalyzed coupling/disproportionation reactions with α-cyclodextrin and dodecyl β- d-maltoside diuronic acid (DDM-2COOH) or octyl β- d-glucuronic acid (OG-COOH) as substrates gave high conversions, especially when the CGTase Toruzyme was used. It was found that pH had a strong influence on both the enzyme activity and the acceptor specificity. With non-ionic substrates (dodecyl β- d-maltoside and octyl β- d-glucoside), Toruzyme exhibited high catalytic activity at pH 5-6, but for the acidic substrates (DDM-2COOH and OG-COOH) the activity was highest at pH 4. This is most likely due to the enzyme favoring the protonated forms of DDM-2COOH and OG-COOH, which exist at lower pH (pKa about 3).
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Affiliation(s)
- Ngoc T N Ngo
- Division of Biotechnology, Lund University, Lund, Sweden
| | | | - Carl Grey
- Division of Biotechnology, Lund University, Lund, Sweden
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Peng D, Li H, Li WJ, Zheng L. Biosorbent with superhydrophobicity and superoleophilicity for spilled oil removal. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111803. [PMID: 33360216 DOI: 10.1016/j.ecoenv.2020.111803] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/08/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
The development of efficient and sustainable sorbents for emergent oil cleanup has attracted tremendous attention. In this study, the feasibility of enzymatic grafting of octadecylamine (ODA) on corn stalk pith (CSP) by laccase-TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) treatment for enhanced oil-water separation was investigated. The dynamic contact angle tests suggest that the modified CSP (LCSP) had higher hydrophobicity (WCA, 157.2˚) and lipophilicity (OCA, 0˚) than the CSP did. In addition, the introduction of ODA onto the surface of modified CSP was verified by a variety of characterization techniques including SEM, FT-IR, and XPS. Compared with the control, laccase-TEMPO treatment of CSP coupled with octadecylamine grafting greatly improved the oil sorption capacity from 13.24 g/g to 44.25 g/g, while substantially reduced the water sorption capacity from 15.52 g/g to 2.76 g/g. LCSP has fast kinetic (sorption equilibrium reached before 60 min) and high fits to the pseudo-second-order kinetic model. The results obtained in this study reveal the feasibility of using Laccase-TEMPO treatment to graft the ODA onto the surface of CSP, thereby enhancing the rate and capacity of oil separation from oily water. The method and sorbent developed in this study hold promise for green, simple and cost-effective oil cleanup during oil spillage emergency events.
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Affiliation(s)
- Dan Peng
- Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, PR China.
| | - Huosheng Li
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Wen-Jie Li
- Department of Transportation and Environment, Shenzhen Institute of Information Technology, Shenzhen 518172, PR China; School of Earth and Environment, Anhui University of Science & Technology, Huainan 232001, PR China
| | - Liuchun Zheng
- School of Environment, South China Normal University, Guangzhou Higher Education Mega Center, Guangzhou 510006, PR China.
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Wang Y, Zhang N, Wang Q, Yu Y, Wang P. Chitosan grafting via one-enzyme double catalysis: An effective approach for improving performance of wool. Carbohydr Polym 2021; 252:117157. [PMID: 33183608 DOI: 10.1016/j.carbpol.2020.117157] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 10/23/2022]
Abstract
Chitosan is considered as a green additive with broad application prospects due to its advantages like biodegradability and antibacterial ability. Herein, we proposed an effective chitosan grafting approach via "one-enzyme double catalysis" strategy which aimed at functionalizing wool fibers to achieve bidirectionally multiple covalent crosslinking between chitosan and wool by laccase/2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) mediated oxidization. The mechanism was studied using models of wool and chitosan in terms of UV, FTIR, GPC and MALDI-TOF MS. Meanwhile, the structure and morphology of wool fiber grafted with chitosan were characterized by ATR-FTIR and SEM. Compared with untreated wool, this efficient method can significantly improve the dimensional stability to felting (2.53 %), wettability and dyeability of wool fabric, and can also compensate for the strength loss caused by the pretreatment. The present work provides a useful path for the enzymatic modification of keratin-containing fibers like wool using chitosan and other natural biopolymers with similar structure.
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Affiliation(s)
- Yuxia Wang
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, China
| | - Nan Zhang
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, China
| | - Qiang Wang
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, China.
| | - Yuanyuan Yu
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, China
| | - Ping Wang
- Key Laboratory of Eco-Textile, Ministry of Education, Jiangnan University, Wuxi, 214122, China
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8
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Martinelli A, Giannini L, Branduardi P. Enzymatic Modification of Cellulose To Unlock Its Exploitation in Advanced Materials. Chembiochem 2020; 22:974-981. [PMID: 33063936 DOI: 10.1002/cbic.202000643] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/13/2020] [Indexed: 01/16/2023]
Abstract
Nowadays natural biopolymers have a wide variety of uses in various industrial applications, such as food, adhesives and composite materials. Among them, cellulose has attracted the interest of researchers due to its properties: high strength and flexibility, biocompatibility and nontoxicity. Despite that, in many cases its practical use is limited because of poor solubility and/or an unsuitable hydrophilic/hydrophobic balance. In this context, enzymatic modification appears as a powerful strategy to overcome these problems through selective, green and environmentally friendly processes. This minireview discusses the different methods developed for the enzymatic modification of cellulose, emphasizing the type of reaction, the enzymes used (laccases, esterases, lipases, hexokinases, etc.), and the properties and applications of the cellulose derivatives obtained. Considering that cellulose is the most abundant natural polymer on Earth and can be derived from residual lignocellulosic biomass, the impact of its use in bio-based process following the logic of the circular economy is relevant.
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Affiliation(s)
- Andrea Martinelli
- DepartmentMaterials Science, University of Milano Bicocca, Via Cozzi 55, 20125, Milan, Italy.,Department of Biotechnology and Biosciences, University of Milano Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
| | | | - Paola Branduardi
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
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9
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Efficient laccase/TEMPO oxidation of alkyl glycosides: Effects of carbohydrate group and alkyl chain length. J Biotechnol 2020; 324S:100026. [DOI: 10.1016/j.btecx.2020.100026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/03/2020] [Accepted: 09/08/2020] [Indexed: 12/14/2022]
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10
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Valls C, Pastor FIJ, Roncero MB, Vidal T, Diaz P, Martínez J, Valenzuela SV. Assessing the enzymatic effects of cellulases and LPMO in improving mechanical fibrillation of cotton linters. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:161. [PMID: 31289461 PMCID: PMC6593493 DOI: 10.1186/s13068-019-1502-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 06/15/2019] [Indexed: 05/31/2023]
Abstract
BACKGROUND The increasing interest in replacing petroleum-based products by more sustainable materials in the packaging sector gives relevance to cellulose as a biodegradable natural resource. Moreover, its properties can be modified physically, chemically or biotechnologically in order to obtain new bioproducts. Refined cotton linters with high cellulose content were treated with hydrolytic (cellulases) and oxidative (LPMO and Laccase_Tempo) enzymes to evaluate their effect on fibre properties and in improving mechanical fibrillation. RESULTS Cellulases released cellooligosaccharides, reducing fibre length and partially degrading cellulose. They also improved mechanical fibrillation yielding up to 18% of nanofibrillated cellulose (NFC). LPMO introduced a slight amount of COOH groups in cellulose fibres, releasing cellobionic acid to the effluents. The action of cellulases was improved after LPMO treatment; however, the COOH groups created disappeared from fibres. After mechanical fibrillation of LPMO-cellulase-treated cotton linters a 23% yield of NFC was obtained. Laccase_Tempo treatment also introduced COOH groups in cellulose fibres from cotton, yielding 10% of NFC. Degree of polymerization was reduced by Laccase_Tempo, while LPMO treatment did not significantly affect it but produced a higher reduction in fibre length. The combined treatment with LPMO and cellulase provided films with higher transparency (86%), crystallinity (92%), smoothness and improved barrier properties to air and water than films casted from non-treated linters and from commercial NFC. CONCLUSIONS The combined enzymatic treatment with LPMO and cellulases boosted mechanical fibrillation of cotton linters, improving the NFC production and providing bioproducts with high transparency and high barrier properties.
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Affiliation(s)
- Cristina Valls
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
- CELBIOTECH_Paper Engineering Research Group, Universitat Politècnica de Catalunya, BarcelonaTech, 08222 Terrassa, Spain
| | - F. I. Javier Pastor
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - M. Blanca Roncero
- CELBIOTECH_Paper Engineering Research Group, Universitat Politècnica de Catalunya, BarcelonaTech, 08222 Terrassa, Spain
| | - Teresa Vidal
- CELBIOTECH_Paper Engineering Research Group, Universitat Politècnica de Catalunya, BarcelonaTech, 08222 Terrassa, Spain
| | - Pilar Diaz
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Josefina Martínez
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
| | - Susana V. Valenzuela
- Department of Genetics, Microbiology and Statistics, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain
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11
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Bu X, Li Y, Zhen X, Wang J, Zhang X, Bian N, Chan H, Liu K, Zhang F, Pei J. Effect of carboxyl content on the physicochemical properties and intramolecular water distribution of 6-carboxyl chitooligomer prepared by laccase-TEMPO. J Appl Polym Sci 2019. [DOI: 10.1002/app.47509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xin Bu
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Ying Li
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Xiaoqin Zhen
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Jing Wang
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Xinli Zhang
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Nengyuan Bian
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Huifang Chan
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Kun Liu
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Fangdong Zhang
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
| | - Jicheng Pei
- Tianjin Key Laboratory of Pulp and Paper; Tianjin University of Science and Technology; No. 29, 13th Street, TEDA, Tianjin 300457 China
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Isogai A, Hänninen T, Fujisawa S, Saito T. Review: Catalytic oxidation of cellulose with nitroxyl radicals under aqueous conditions. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.07.007] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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13
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Marjamaa K, Kruus K. Enzyme biotechnology in degradation and modification of plant cell wall polymers. PHYSIOLOGIA PLANTARUM 2018; 164:106-118. [PMID: 29987848 DOI: 10.1111/ppl.12800] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 07/02/2018] [Accepted: 07/05/2018] [Indexed: 05/28/2023]
Abstract
Lignocelluloses are abundant raw materials for production of fuels, chemicals and materials. The purpose of this paper is to review the enzyme-types and enzyme-technologies studied and applied in the processing of the lignocelluloses into different products. The enzymes here are mostly glycoside hydrolases, esterases and different redox enzymes. Enzymatic hydrolysis of lignocellulosic polysaccharides to platform sugars has been widely studied leading to development of advanced commercial products for this purpose. Restricted hydrolysis or oxidation of cellulosic fibers have been applied in processing of pulps to paper products, nanocelluloses and textile fibers. Oxidation, transglycosylation and derivatization have been utilized in functionalization of fibers, cellulosic surfaces and polysaccharides. Enzymatic polymerization, depolymerization and grafting methods are being developed for lignin valorization.
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Affiliation(s)
- Kaisa Marjamaa
- VTT Technical Research Centre of Finland Ltd, PO Box 1000, Espoo, 02044, Finland
| | - Kristiina Kruus
- VTT Technical Research Centre of Finland Ltd, PO Box 1000, Espoo, 02044, Finland
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Biliuta G, Sacarescu L, Socoliuc V, Iacob M, Gheorghe L, Negru D, Coseri S. Carboxylated Polysaccharides Decorated with Ultrasmall Magnetic Nanoparticles with Antibacterial and MRI Properties. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700062] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Gabriela Biliuta
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy; 41A, Gr. Ghica Voda Alley Iasi 700487 Romania
| | - Liviu Sacarescu
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy; 41A, Gr. Ghica Voda Alley Iasi 700487 Romania
| | - Vlad Socoliuc
- Laboratory of Magnetic Fluids; Center for Fundamental and Advanced Technical Research; Romanian Academy - Timisoara Branch; 24 Bd. Mihai Viteazul Timisoara 300223 Romania
| | - Mihai Iacob
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy; 41A, Gr. Ghica Voda Alley Iasi 700487 Romania
| | - Liliana Gheorghe
- Radiology and Medical Imaging Department; University of Medicine and Farmacy “Grigore T. Popa,”; 16 Universitatii Str. Iasi 700115 Romania
| | - Dragos Negru
- Radiology and Medical Imaging Department; University of Medicine and Farmacy “Grigore T. Popa,”; 16 Universitatii Str. Iasi 700115 Romania
| | - Sergiu Coseri
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy; 41A, Gr. Ghica Voda Alley Iasi 700487 Romania
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