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Chitbanyong K, Hou G, Shibata I, Takeuchi M, Kimura S, Isogai A. Polyglucuronic acids prepared from α-(1 → 3)-glucan by TEMPO-catalytic oxidation. Carbohydr Polym 2024; 330:121813. [PMID: 38368084 DOI: 10.1016/j.carbpol.2024.121813] [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: 10/25/2023] [Revised: 12/24/2023] [Accepted: 01/09/2024] [Indexed: 02/19/2024]
Abstract
2,2,6,6-Tetramethylpiperidine-1-oxyl radical (TEMPO)-catalytic oxidation was applied to a water-insoluble α-(1 → 3)-glucan in water at pH 10 and room temperature (∼24 °C), with solid NaOCl·5H2O as the primary oxidant. Oxidation with NaOCl at 15 mmol/g gave a water-soluble TEMPO-oxidized product at a mass recovery ratio of 97 %. The carboxy content of the TEMPO-oxidized product was 5.3 mmol/g, which corresponds to a degree of C6-oxidation (DO) of 93 %. A new water-soluble α-(1 → 3)-polyglucuronic acid with a nearly homogeneous chemical structure was therefore quantitatively obtained. X-ray diffraction and solid-state 13C NMR spectroscopic analyses showed that the original α-(1 → 3)-glucan and its TEMPO-oxidized product with a carboxy content of 5.3 mmol/g had crystalline structures, whereas the oxidized products with DOs of 50 % and 66 % had almost disordered structures. The carboxy groups in the oxidized products were regioselectively methyl esterified with trimethylsilyl diazomethane, and analyzed by using size-exclusion chromatography with multi-angle laser-light scattering and refractive index detections. The results show that the original α-(1 → 3)-glucan and its oxidized products with DOs of 50 %, 66 %, and 93 % had weight-average degrees of polymerization of 671, 288, 54, and 45, respectively. Substantial depolymerization of the α-(1 → 3)-glucan molecules therefore occurred during catalytic oxidation, irrespective of the oxidation pH.
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Affiliation(s)
- Korawit Chitbanyong
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 113-8657 Tokyo, Japan.
| | - Gaoyuan Hou
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 113-8657 Tokyo, Japan.
| | - Izumi Shibata
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 113-8657 Tokyo, Japan.
| | - Miyuki Takeuchi
- Institute of Engineering Innovation, The University of Tokyo, Tokyo 113-8656, Japan.
| | - Satoshi Kimura
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 113-8657 Tokyo, Japan.
| | - Akira Isogai
- Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 113-8657 Tokyo, Japan.
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Wang F, Borjas A, Bonto A, Ursu AV, Dupont M, Roche J, Delattre C. Exploring Novel Applications for Hydrogels Derived from Modified Celluloses. Polymers (Basel) 2024; 16:530. [PMID: 38399908 PMCID: PMC10892153 DOI: 10.3390/polym16040530] [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: 12/19/2023] [Revised: 02/06/2024] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
The valorization of lignocellulosic biomass by-products holds significant economic and ecological potential, considering their global overproduction. This paper introduces the fabrication of a novel wheat-straw-based hydrogel and a new microcellulose-based hydrogel through 2,2,6,6-tetramethylpiperidinyl-1-oxy (TEMPO) oxidation. In this study, Fourier transform infrared (FTIR) analysis was employed for the detection of carboxyl groups, neutralization titration was conducted using a conductivity meter, viscosity analysis was performed using a rheometer, and transmittance analysis was carried out using a spectrophotometer. Two novel hydrogels based on TEMPO oxidation have been developed. Among them, the bio-based hydrogel derived from oxidized wheat straw exhibited exceptional printability and injectability. We found that the oxidation degree of microcellulose reached 56-69%, and the oxidation degree of wheat straw reached 56-63%. The cross-linking of 4% oxidized wheat straw and calcium chloride was completed in 400 seconds, and the viscosity exceeded 100,000 Pa·s. In summary, we have successfully created low-cost hydrogels through the modification of wheat straw and microcellulose, transforming lignocellulosic biomass by-products into a sustainable source of polymers. This paper verifies the future applicability of biomass materials in 3D printing.
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Affiliation(s)
- Feiyang Wang
- Clermont Auvergne INP, CNRS, Institut Pascal, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Aldo Borjas
- Clermont Auvergne INP, CNRS, Institut Pascal, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
- INRAE, Laboratoire de Génétique, Diversité et Écophysiologie des céréales (GDEC), Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Aldrin Bonto
- Department of Chemistry, De La Salle University, 2401 Taft, Avenue, Manila 0922, Philippines
| | - Alina Violeta Ursu
- Clermont Auvergne INP, CNRS, Institut Pascal, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Maxime Dupont
- INRAE, Laboratoire de Génétique, Diversité et Écophysiologie des céréales (GDEC), Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Jane Roche
- INRAE, Laboratoire de Génétique, Diversité et Écophysiologie des céréales (GDEC), Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
| | - Cédric Delattre
- Clermont Auvergne INP, CNRS, Institut Pascal, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France
- Institut Universitaire de France (IUF), 1 Rue Descartes, 75005 Paris, France
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Pierre G, Punta C, Delattre C, Melone L, Dubessay P, Fiorati A, Pastori N, Galante YM, Michaud P. TEMPO-mediated oxidation of polysaccharides: An ongoing story. Carbohydr Polym 2017; 165:71-85. [PMID: 28363578 DOI: 10.1016/j.carbpol.2017.02.028] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 01/30/2017] [Accepted: 02/08/2017] [Indexed: 01/30/2023]
Abstract
The oxidation of natural polysaccharides by TEMPO has become by now an "old chemical reaction" which led to numerous studies mainly conducted on cellulose. This regioselective oxidation of primary alcohol groups of neutral polysaccharides has generated a new class of polyuronides not identified before in nature, even if the discovery of enzymes promoting an analogous oxidation has been more recently reported. Around the same time, the scientific community discovered the surprising biological and techno-functional properties of these anionic macromolecules with a high potential of application in numerous industrial fields. The objective of this review is to establish the state of the art of TEMPO chemistry applied to polysaccharide oxidation, its history, the resulting products, their applications and the associated modifying enzymes.
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Affiliation(s)
- Guillaume Pierre
- Université Clermont Auvergne, Université Blaise Pascal, Institut Pascal, BP 10448, F-63000, Clermont-Ferrand, France; CNRS, UMR 6602, IP, F-63178, Aubière, France.
| | - Carlo Punta
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta" and Local Unit INSTM, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133, Milano, Italy
| | - Cédric Delattre
- Université Clermont Auvergne, Université Blaise Pascal, Institut Pascal, BP 10448, F-63000, Clermont-Ferrand, France; CNRS, UMR 6602, IP, F-63178, Aubière, France
| | - Lucio Melone
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta" and Local Unit INSTM, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133, Milano, Italy; Università degli Studi e-Campus, Via Isimbardi 10, 22060, Novedrate, Como, Italy
| | - Pascal Dubessay
- Université Clermont Auvergne, Université Blaise Pascal, Institut Pascal, BP 10448, F-63000, Clermont-Ferrand, France; CNRS, UMR 6602, IP, F-63178, Aubière, France
| | - Andrea Fiorati
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta" and Local Unit INSTM, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133, Milano, Italy
| | - Nadia Pastori
- Department of Chemistry, Materials, and Chemical Engineering "G. Natta" and Local Unit INSTM, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133, Milano, Italy
| | - Yves M Galante
- Istituto di Chimica del Riconoscimento Molecolare, CNR, Via Mario Bianco 9, 20131, Milano, Italy
| | - Philippe Michaud
- Université Clermont Auvergne, Université Blaise Pascal, Institut Pascal, BP 10448, F-63000, Clermont-Ferrand, France; CNRS, UMR 6602, IP, F-63178, Aubière, France
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