1
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Wang S, Li Y, Zhang J, Man J, Nie Y, Ji M, Chen H, Li F, Zhang C. Treatment and mechanism for hot melting starch by reducing the molecular chain winding and crystallinity. Carbohydr Polym 2024; 325:121574. [PMID: 38008485 DOI: 10.1016/j.carbpol.2023.121574] [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: 06/25/2023] [Revised: 09/29/2023] [Accepted: 11/06/2023] [Indexed: 11/28/2023]
Abstract
Unlike thermoplastic petroleum-based materials, starch-based materials rely on aqueous systems but are incapable of hot melting, resulting in low processing efficiency and limited large-scale industrial applications. In this study, the combination of α-amylase liquefaction and urea plasticization was used for the first time to obtain enzymatic thermoplastic starch (ETPS) for hot melting by changing the molecular chain of starch. ETPS showed an apparent hot melting phenomenon when heated below 200 °C. Differential scanning calorimetry revealed that heat absorption peaks were obviously reduced, and the hot melting phenomenon occurred easily depending on the combination of enzymatic hydrolysis and plasticization. Dynamic mechanical analysis indicated that the combined modification effectively increased the number of freely movable chains. The red shift of -OH stretching vibration peaks indicated the formation of strengthened hydrogen bonds in ETPS. X-ray diffraction showed that the crystallinity of ETPS was reduced to 5.68 %, effectively reducing the regenerative phenomenon. Gel permeation chromatography revealed that the molecular weight of ETPS decreased, and the entanglements between molecular chains were reduced. A tensile test showed that the elongation at break of ETPS was as high as 235.29 %, which was much higher than those of enzymatic hydrolysis starch and thermoplastic starch.
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Affiliation(s)
- Shen Wang
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Yanhui Li
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Jingxian Zhang
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China
| | - Jia Man
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture (M of E), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Yanyan Nie
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture (M of E), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Maocheng Ji
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture (M of E), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Heyu Chen
- College of Mechanical and Electronic Engineering, Northwest A&F University, 22 Xinong Road, Yangling, Shanxi 712100, China
| | - Fangyi Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture (M of E), School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Chuanwei Zhang
- College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China.
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2
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Ren F, Liu X, Wang J, Guo P, Wang S. Preparation and characterization of chemically modified tapioca starch-ionic liquid antibacterial films. Carbohydr Polym 2024; 324:121519. [PMID: 37985055 DOI: 10.1016/j.carbpol.2023.121519] [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: 08/06/2023] [Revised: 09/27/2023] [Accepted: 10/18/2023] [Indexed: 11/22/2023]
Abstract
The plasticizing and antibacterial effects of ionic liquids (ILs) in the preparation of tapioca starch-IL films were studied for the first time. 1-Ethyl-3-methylimidazolium acetate ([Emim][OAc]) caused complete disruption of starch crystallites during thermal compression, while some crystallites remained after the plasticization of starch with choline acetate ([Ch][OAc]). Compared to native tapioca starch (NTS), the plasticization of acetylated tapioca starch (ATS) and cross-linked tapioca (CTS) was slightly promoted and inhibited, respectively. Starch-[Emim][OAc] films exhibited higher hydrophobicity and mechanical properties but lower antibacterial activity than starch-[Ch][OAc] films. CTS-[Ch][OAc] films presented higher mechanical strength and antibacterial activity than NTS-[Ch][OAc] and ATS-[Ch][OAc] films. From this study, we conclude that ILs can be used in the preparation of antibacterial starch films to play the roles of plasticization and antibacterial activity. The antibacterial activity of starch films depends on types of ILs and their interactions with starch during film preparation.
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Affiliation(s)
- Fei Ren
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China
| | - Xingkai Liu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China
| | - Jinwei Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China
| | - Peng Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255000, China
| | - Shujun Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China; School of Food Science and Technology, Tianjin University of Science & Technology, 300457, China; Food Laboratory of Zhongyuan, Tianjin University of Science & Technology, Tianjin 300457, China.
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3
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Feuzing F, Mbakidi JP, Pontoire B, Quéveau D, Roelens G, Lourdin D, Bouquillon S, Leroy E. Melt processing of paramylon using a water:ionic liquid mixture as plasticizer. Carbohydr Polym 2023; 306:120607. [PMID: 36746572 DOI: 10.1016/j.carbpol.2023.120607] [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: 09/20/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023]
Abstract
Paramylon is a linear β-1,3-glucan produced by the microalgae Euglena Gracilis. Due to its native crystalline structure, involving hexagonally packed triple helices, paramylon is neither water soluble nor thermoplastic. While such properties are generally obtained by chemical modification of paramylon, the present work demonstrates that using ionic liquid/water mixtures as solvents or plasticizers may be an alternative: A mixture of water with cholinium glycinate (40:60) allowed: i) obtaining paramylon solutions at 80 °C, that form reversible ionogels upon cooling at 20 °C, when used as a solvent, and ii) the thermomechanical processing of paramylon below 100 °C by extrusion and hot-press into transparent films, when used as a plasticizer. The thermoplastic paramylon obtained consists of an amorphous matrix, self-reinforced by oriented triple helices packed as nanofibers. This results in a storage modulus ranging from 300 to 450 MPa at 25 °C, depending on the plasticizer content, and in a tensile strain at break of 27 %. For storage times larger than 1 month, a recrystallization of paramylon is observed, with an unidentified crystalline structure different from the native one. Recrystallized samples can be reprocessed into amorphous films by hot pressing.
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Affiliation(s)
- Frédérica Feuzing
- Université de Nantes, Oniris, CNRS, GEPEA, UMR 6144, F- 44470 Carquefou, France; Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, BP 1039, 51687 Reims Cedex, France
| | - Jean Pierre Mbakidi
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, BP 1039, 51687 Reims Cedex, France
| | - Bruno Pontoire
- Biopolymers Interactions Assemblies Research Unit 1268 (BIA), INRAE, Rue de la Géraudière, 44316 Nantes, France
| | - Delphine Quéveau
- Université de Nantes, Oniris, CNRS, GEPEA, UMR 6144, F- 44470 Carquefou, France
| | - Guillaume Roelens
- Université de Nantes, Oniris, CNRS, GEPEA, UMR 6144, F- 44470 Carquefou, France
| | - Denis Lourdin
- Biopolymers Interactions Assemblies Research Unit 1268 (BIA), INRAE, Rue de la Géraudière, 44316 Nantes, France
| | - Sandrine Bouquillon
- Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, BP 1039, 51687 Reims Cedex, France
| | - Eric Leroy
- Université de Nantes, Oniris, CNRS, GEPEA, UMR 6144, F- 44470 Carquefou, France.
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4
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Yu J, Liu X, Xu S, Shao P, Li J, Chen Z, Wang X, Lin Y, Renard CMGC. Advances in green solvents for production of polysaccharide-based packaging films: Insights of ionic liquids and deep eutectic solvents. Compr Rev Food Sci Food Saf 2023; 22:1030-1057. [PMID: 36579838 DOI: 10.1111/1541-4337.13099] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/24/2022] [Accepted: 12/03/2022] [Indexed: 12/30/2022]
Abstract
The problems with plastic materials and the good film-forming properties of polysaccharides motivated research in the development of polysaccharide-based films. In the last 5 years, there has been an explosion of publications on using green solvents, including ionic liquids (ILs), and deep eutectic solvents (DESs) as candidates to substitute the conventional solvents/plasticizers for preparations of desired polysaccharide-based films. This review summarizes related properties and recovery of ILs and DESs, a series of green preparation strategies (including pretreatment solvents/reaction media, ILs/DESs as components, extraction solvents of bioactive compounds added into films), and inherent properties of polysaccharide-based films with/without ILs and DESs. Major reported advantages of these new solvents are high dissolving capacity of certain ILs/DESs for polysaccharides (i.e., up to 30 wt% for cellulose) and better plasticizing ability than traditional plasticizers. In addition, they frequently display intrinsic antioxidant and antibacterial activities that facilitate ILs/DESs applications in the processing of polysaccharide-based films (especially active food packaging films). ILs/DESs in the film could also be further recycled by water or ethanol/methanol treatment followed by drying/evaporation. One particularly promising approach is to use bioactive cholinium-based ILs and DESs with good safety and plasticizing ability to improve the functional properties of prepared films. Whole extracts by ILs/DESs from various byproducts can also be directly used in films without separation/polishing of compounds from the extracting agents. Scaling-up, including costs and environmental footprint, as well as the safety and applications in real foods of polysaccharide-based film with ILs/DESs (extracts) deserves more studies.
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Affiliation(s)
- Jiahao Yu
- School of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Zhejiang NHU Co., Ltd, Xinchang, China
- School of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Xuwei Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, China
| | - Shanlin Xu
- School of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | - Ping Shao
- School of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
| | | | - Zhirong Chen
- School of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Xuanpeng Wang
- Guangdong Qingyunshan Pharmaceutical Co., Ltd., Shaoguan, China
| | - Yang Lin
- School of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
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5
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Natural deep eutectic solvent of choline chloride with oxalic or ascorbic acids as efficient starch-based film plasticizers. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Pandey DK, Kuddushi M, Kumar A, Singh DK. Iron Oxide Nanoparticles Loaded Smart Hybrid Hydrogel for Anti-Inflammatory Drug Delivery: Preparation and Characterizations. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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7
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Wu T, Dai R, Shan Z, Chen H, Woo MW, Yi J. High efficient crosslinking of gelatin and preparation of its excellent flexible composite film using deep eutectic solvent. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Shama VM, Swami AR, Aniruddha R, Sreedhar I, Reddy BM. Process and engineering aspects of carbon capture by ionic liquids. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101507] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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9
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Influence of the Presence of Choline Chloride on the Classical Mechanism of "Gelatinization" of Starch. Polymers (Basel) 2021; 13:polym13091509. [PMID: 34067213 PMCID: PMC8125809 DOI: 10.3390/polym13091509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of this research is to contribute to a better understanding the destructuration of three native starches and a wheat flour in mixtures of water and choline chloride. Model systems have thus been defined to allow a better approach to hydrothermic transformations related to the interactions between choline chloride and starch. We have observed that choline chloride has an impact on the gelatinization of starch which corresponds to the stabilizing salts phenomenon. The depolymerization and dissolution of the starch have also been demonstrated and can there dominate the gelatinization. However, the results obtained in X-ray diffraction by heating cell have shown that the exotherm which appeared was not only related to the depolymerization of the starch, but that a stage of crystalline rearrangement of the starch coexisted with this phenomenon.
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10
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Chen P, Xie F, Tang F, McNally T. Cooperative Effects of Cellulose Nanocrystals and Sepiolite When Combined on Ionic Liquid Plasticised Chitosan Materials. Polymers (Basel) 2021; 13:polym13040571. [PMID: 33672901 PMCID: PMC7918726 DOI: 10.3390/polym13040571] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 12/25/2022] Open
Abstract
Cellulose nanocrystals (CNCs) and/or sepiolite (SPT) were thermomechanically mixed with un-plasticised chitosan and chitosan/carboxymethyl cellulose (CMC) blends plasticised with 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]). Examination of the morphology of these materials indicates that SPT aggregates were reduced when CNCs or [C2mim][OAc] were present. Inclusion of CNCs and/or SPT had a greater effect on material properties when the matrices were un-plasticised. Addition of SPT or CNCs altered the crystalline structure of the un-plasticised chitosan matrix. Moreover, a combination of SPT and CNCs was more effective at suppressing re-crystallisation. Nonetheless, the mechanical properties and surface hydrophobicity were more related to CNC/SPT-biopolymer interactions. The un-plasticised bionanocomposites generally showed increased relaxation temperatures, enhanced tensile strength, and reduced surface wettability. For the [C2mim][OAc] plasticised matrices, the ionic liquid (IL) dominates the interactions with the biopolymers such that the effect of the nanofillers is diminished. However, for the [C2mim][OAc] plasticised chitosan/CMC matrix, CNCs and SPT acted synergistically suppressing re-crystallisation but resulting in increased tensile strength.
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Affiliation(s)
- Pei Chen
- College of Food Science, South China Agricultural University, Guangzhou 510642, China;
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, UK
| | - Fengwei Xie
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, UK
- Correspondence: (F.X.); (T.M.)
| | - Fengzai Tang
- WMG, University of Warwick, Coventry CV4 7AL, UK;
| | - Tony McNally
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, UK
- Correspondence: (F.X.); (T.M.)
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11
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Chen P, Xie F, Tang F, McNally T. Influence of plasticiser type and nanoclay on the properties of chitosan-based materials. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110225] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Xu J, Chen Y, Tian Y, Yang Z, Zhao Z, Du W, Zhang X. Effect of ionic liquid 1-buyl-3-methylimidazolium halide on the structure and tensile property of PBS/corn starch blends. Int J Biol Macromol 2021; 172:170-177. [PMID: 33450339 DOI: 10.1016/j.ijbiomac.2021.01.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/10/2021] [Accepted: 01/11/2021] [Indexed: 01/08/2023]
Abstract
As a promising biodegradable resin, poly (butylene succinate) (PBS) is often blended with starch to reduce the cost. In this paper, 1-buyl-3-methylimidazolium halide pre-plasticized corn starch (CS) was blended with PBS to prepare PBS/corn starch blend material modified by ionic liquid (PBS/CS-IL). Ionic liquid (IL) acted as plasticizer and compatibilizer, and the effects of 1-butyl-3-methylimidazolium halide with different halogen anion on PBS/Starch blends were explored. The effects of IL on the structure and tensile property of PBS/Starch blends were evaluated by FTIR, SEM, DSC, TGA and XRD, respectively. Test results showed that the addition of IL significantly reduced the crystallinity of PBS/Starch blends, and the size of starch particles in the PBS matrix was also effectively reduced. IL also acted as a compatibilizer of starch and PBS, and induced the morphology of the blends to change from "sea-island" structure to homogeneous phase. The results of the tensile test showed that compared with the PBS/Starch blend without IL, the elongation at break of PBS/CS-IL increased from 22% to 93%. This study provided a simple and feasible method for the preparation of low-cost PBS bio-composite materials, and provided theoretical support for future industrial production.
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Affiliation(s)
- Jin Xu
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Yanfei Chen
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Yuanfang Tian
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Zhaojie Yang
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Zhixin Zhao
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Wenhao Du
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Xi Zhang
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; Polymer Research Institute, Sichuan University, Chengdu 610065, China.
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13
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Chen P, Xie F, Tang F, McNally T. Graphene oxide enhanced ionic liquid plasticisation of chitosan/alginate bionanocomposites. Carbohydr Polym 2020; 253:117231. [PMID: 33278989 DOI: 10.1016/j.carbpol.2020.117231] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/30/2020] [Accepted: 10/09/2020] [Indexed: 10/23/2022]
Abstract
The effect of graphene oxide (GO) or reduced GO (rGO) on the structure and properties of polyelectrolyte-complexed chitosan/alginate bionanocomposites is highly dependent on plasticiser type (glycerol or 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc])) due to the competing interactions between the components. For the glycerol-plasticised chitosan/alginate matrix, inclusion of GO/rGO enhanced the chitosan crystallinity and increased matrix ductility. While the chitosan/alginate matrix plasticised by [C2mim][OAc] showed dramatically weakened interactions between the two biopolymers, GO was highly effective at counteracting the effect of [C2mim][OAc] by interacting with the biopolymers and the ionic liquid ions, resulting in enhanced mechanical properties and decreased surface hydrophilicity. Compared with GO, rGO was much less effective at promoting chitosan-alginate interactions and even resulted in higher surface hydrophilicity. However, irrespective of the plasticiser type, inclusion of rGO resulted in reduced crystallinity by restricting the interactions between [C2mim][OAc] and the biopolymers, and higher ionic conductivity.
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Affiliation(s)
- Pei Chen
- College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Fengwei Xie
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, United Kingdom; School of Chemical Engineering, The University of Queensland, Brisbane, Qld 4072, Australia.
| | - Fengzai Tang
- WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Tony McNally
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, United Kingdom.
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14
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Alves Magro AE, de Castro RJS. Effects of solid-state fermentation and extraction solvents on the antioxidant properties of lentils. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Chen P, Xie F, Tang F, McNally T. Ionic Liquid (1-Ethyl-3-methylimidazolium Acetate) Plasticization of Chitosan-Based Bionanocomposites. ACS OMEGA 2020; 5:19070-19081. [PMID: 32775909 PMCID: PMC7408243 DOI: 10.1021/acsomega.0c02418] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 07/08/2020] [Indexed: 05/04/2023]
Abstract
The structure and properties of different biopolymer composites based on chitosan and chitosan/carboxymethyl cellulose (CMC) are governed by multiple structure-property relationships associated with different phase interactions. Plasticization of these matrices with ionic liquid 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) played a dominant role, increasing the mobility of biopolymer chains as well as ions and associated dipoles but reducing biopolymer chain interactions, crystallinity, and thermal stability. These structural changes led to higher matrix ionic conductivity, shorter electrical relaxation time, and greater matrix ductility. The inclusion of graphene oxide (GO) and reduced GO (rGO) also influenced the structure and properties of these bionanocomposites by disrupting the biopolymer hydrogen bonding and/or polyelectrolyte complexation (PEC) and interacting with [C2mim][OAc]. The impact of GO/rGO was more evident for 20 wt % [C2mim][OAc], such as increased crystallinity and thermal stability of chitosan. PEC was hindered with excess (40 wt %) [C2mim][OAc] added and further hindered again when rGO was included. This study shows that the structure and properties of bionanocomposites are not just determined by the surface chemistry of GO/rGO but can also be influenced by multiple interactions involving plasticizers such as ILs and additional biopolymers.
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Affiliation(s)
- Pei Chen
- College
of Food Science, South China Agricultural
University, Guangzhou, Guangdong 510642, China
- International
Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Fengwei Xie
- International
Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
- School
of Chemical Engineering, The University
of Queensland, Brisbane, Qld 4072, Australia
- ,
| | - Fengzai Tang
- WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Tony McNally
- International
Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
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16
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Kaur A, Kaur N, Chaudhary GR. Volumetric and acoustic approach for investigating molecular interactions of choline acetate ionic liquid in α,ω-alkanediols at different temperatures. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113330] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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17
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Chhotaray PK, Biswal SK, Pandey S. Development of novel hybrid ionic fluids for efficient CO2 capture and cellulose dissolution. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113477] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Smirnov MA, Nikolaeva AL, Vorobiov VK, Bobrova NV, Abalov IV, Smirnov AV, Sokolova MP. Ionic Conductivity and Structure of Chitosan Films Modified with Lactic Acid-Choline Chloride NADES. Polymers (Basel) 2020; 12:E350. [PMID: 32041166 PMCID: PMC7077437 DOI: 10.3390/polym12020350] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 01/31/2020] [Accepted: 02/02/2020] [Indexed: 01/06/2023] Open
Abstract
The natural deep eutectic solvent (NADES) based on choline chloride (ChCl) and lactic acid (LA) was used for the preparation of chitosan (CS) films by the solution casting method. The content of NADES in films was from 0 to 82 wt%. The impact of NADES on the morphology and crystalline structure of films was investigated using scanning electron microscopy as well as wide-angle and small-angle X-ray scattering. The experimental results allow to propose CS chains swelling in NADES. FTIR spectroscopy confirms the interactions between CS and NADES components via the formation of hydrogen and ion bonds. The thermal properties of the composite films were studied by simultaneous thermogravimetric and differential thermal analysis. Thermomechanical analysis demonstrated appearance of two transitions at temperatures between -23 and -5 °C and 54-102 °C depending on NADES content. It was found that electrical conductivity of film with 82 wt% of NADES reaches 1.7 mS/cm. The influence of the composition and structure of films on the charge carriers concentration and their mobility is discussed.
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Affiliation(s)
- Mikhail A. Smirnov
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Alexandra L. Nikolaeva
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Vitaly K. Vorobiov
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Natalia V. Bobrova
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Ivan V. Abalov
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
| | - Alexander V. Smirnov
- Physics and Technology Faculty, ITMO University, Kronverskii prosp. 49, Saint Petersburg 197101, Russia;
| | - Maria P. Sokolova
- Institute of Macromolecular Compounds Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia; (M.A.S.); (A.L.N.); (V.K.V.); (N.V.B.); (I.V.A.)
- Saint Petersburg State University, Institute of Chemistry, Universitetskaya nab. 7-9, Saint Petersburg 198504, Russia
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Zdanowicz M. Starch treatment with deep eutectic solvents, ionic liquids and glycerol. A comparative study. Carbohydr Polym 2020; 229:115574. [DOI: 10.1016/j.carbpol.2019.115574] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/31/2019] [Accepted: 11/05/2019] [Indexed: 01/10/2023]
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20
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Influence of ionic plasticizers on the processing and viscosity of starch melts. Carbohydr Polym 2020; 230:115591. [DOI: 10.1016/j.carbpol.2019.115591] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 11/07/2019] [Accepted: 11/08/2019] [Indexed: 11/24/2022]
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21
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Leclercq L, Saetear P, Rolland-Sabaté A, Biron JP, Chamieh J, Cipelletti L, Bornhop DJ, Cottet H. Size-Based Characterization of Polysaccharides by Taylor Dispersion Analysis with Photochemical Oxidation or Backscattering Interferometry Detections. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00605] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Laurent Leclercq
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Phoonthawee Saetear
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier 34095, France
- Department of Chemistry and the Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Ratchathewi, Bangkok 10400, Thailand
| | - Agnès Rolland-Sabaté
- UR1268 Biopolymères Interactions Assemblages, INRA, F-44300 Nantes, France
- UMR0408 Sécurité et Qualité des Produits d’Origine Végétale, INRA, Université Avignon, F-84000 Avignon, France
| | | | - Joseph Chamieh
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier 34095, France
| | - Luca Cipelletti
- L2C, Université de Montpellier, CNRS, Montpellier 34095, France
| | | | - Hervé Cottet
- IBMM, Université de Montpellier, CNRS, ENSCM, Montpellier 34095, France
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22
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Zdanowicz M, Jędrzejewski R, Pilawka R. Deep eutectic solvents as simultaneous plasticizing and crosslinking agents for starch. Int J Biol Macromol 2019; 129:1040-1046. [DOI: 10.1016/j.ijbiomac.2019.02.103] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 01/29/2019] [Accepted: 02/16/2019] [Indexed: 11/16/2022]
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