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Tan X, Huang Y, Muhammad U, Song C, Zhang S, Xia X, Feng Y, Guo L, Wang G, He Z, Xie F. Dissolution and regeneration of starch in hydroxyl-functionalized ionic liquid aqueous solution. Int J Biol Macromol 2024; 264:130775. [PMID: 38467210 DOI: 10.1016/j.ijbiomac.2024.130775] [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: 12/14/2023] [Revised: 02/22/2024] [Accepted: 03/08/2024] [Indexed: 03/13/2024]
Abstract
There have been continuous quests for suitable solvents for starch, given the importance of effective starch dissolution in its modification and subsequent materials production. In light of this, the potential of hydroxyl-functionalized ionic liquid (IL) as a promising solvent for starch was investigated. Within this study, a hydroxyl-functionalized IL 1-(2,3-dihydroxypropyl)-3-methylimidazole chloride ([Dhpmim][Cl]) was synthesized, and the dissolution of starch in this IL and its aqueous solutions was examined. Starch (5.35 wt%) was completely dissolved in [Dhpmim][Cl] within 2 h at 100 °C. The solubility of starch in [Dhpmim][Cl]-water mixtures initially increased and then decreased with rising water content. The optimal ratio was found to be 1:9 (wt/wt) water:[Dhpmim][Cl], achieving the highest solubility at 9.28 wt%. Density functional theory (DFT) simulations elucidated the possible interactions between starch and solvents. After dissolution and regeneration in the 1:9 water:[Dhpmim][Cl] mixture, starch showed no discernible change in the molecular structure, with no derivatization reaction observed. Regenerated starch exhibited a transformation in crystalline structure from A-type to V-type, and its relative crystallinity (12.4 %) was lower than that of native starch (25.2 %), resulting in decreased thermal stability. This study suggests that the hydroxyl-functionalized IL, [Dhpmim][Cl], and its aqueous solutions serve as effective solvents for starch dissolution.
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Affiliation(s)
- Xiaoyan Tan
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Yitao Huang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China; State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Umair Muhammad
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China
| | - Chao Song
- Anning First People's Hospital Affiliated to Kunming University of Science and Technology, Kunming 650302, China
| | - Sai Zhang
- Shenzhen YHLO Biotech Co., Ltd., Shenzhen 518116, China
| | - Xueshan Xia
- Anning First People's Hospital Affiliated to Kunming University of Science and Technology, Kunming 650302, China
| | - Yue Feng
- Anning First People's Hospital Affiliated to Kunming University of Science and Technology, Kunming 650302, China
| | - Ling Guo
- Anning First People's Hospital Affiliated to Kunming University of Science and Technology, Kunming 650302, China
| | - Guowei Wang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China.
| | - Zhendan He
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China.
| | - Fengwei Xie
- Department of Chemical Engineering, University of Bath, Bath BA2 7AY, United Kingdom
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Effect of hydroxyl group on foam features of hydroxyl-based anionic ionic liquid surfactant: Experimental and theoretical studies. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Hu K, Ouyang M, Jiang Q, Zhang H, Kong M, Wang G, Zhuang L. Experimental and DFT studies on micellization features of anionic surface active ionic liquid and nonionic surfactant mixtures: Effect of imidazolium cations. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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A density functional theory study on the water aggregation behaviour of fatty acid-based anionic surface active ionic liquids. Struct Chem 2022. [DOI: 10.1007/s11224-022-01910-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Experimental and DFT studies on foam performances of lauryl ether sulfate-based anionic surface active ionic liquids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Hu K, Zhang H, Kong M, Qin M, Ouyang M, Jiang Q, Wang G, Zhuang L. Effect of alkyl chain length of imidazolium cations on foam properties of anionic surface active ionic liquids: Experimental and DFT studies. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Kumar H, Kaur G. Influence of sodium bis(2-ethylhexyl) sulfosuccinate on the self-assembly of AOT based surface-active ionic liquids having different pharmacologically active cations in the aqueous medium. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Sastry NV, Trivedi PA. Drug anion based surface active ionic liquids: Molecular interactions, surface activity and micellization behavior in aqueous solutions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kumar H, Kaur G. Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review. Front Chem 2021; 9:667941. [PMID: 34055738 PMCID: PMC8158659 DOI: 10.3389/fchem.2021.667941] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/01/2021] [Indexed: 11/13/2022] Open
Abstract
The desire of improving various processes like enhanced oil recovery (EOR), water treatment technologies, biomass extraction, organic synthesis, carbon capture etc. in which conventional surfactants have been traditionally utilized; prompted various researchers to explore the self-assembly and aggregation behavior of different kinds of surface-active molecules. Ionic liquids (ILs) with long alkyl chain present in their structure constitute the advantageous properties of surfactant and ILs, hence termed as surface-active ionic liquids (SAILs). The addition of ILs and SAILs significantly influence the surface-activity and aggregation behavior of industrially useful conventional surfactants. After a brief review of ILs, SAILs and surfactants, the prime focus is made on analyzing the self-assembly of SAILs and the mixed micellization behavior of conventional surfactants with different ILs.
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Affiliation(s)
- Harsh Kumar
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
| | - Gagandeep Kaur
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, India
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Study on Preparation and Performance of Calcium Carbide Slag Foam for Coal Mine Disaster Reduction and CO2 Storage. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125322] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Tan X, Wang G, Zhong L, Xie F, Lan P, Chi B. Regeneration behavior of chitosan from ionic liquid using water and alcohols as anti-solvents. Int J Biol Macromol 2020; 166:940-947. [PMID: 33152361 DOI: 10.1016/j.ijbiomac.2020.10.251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/19/2020] [Accepted: 10/30/2020] [Indexed: 10/23/2022]
Abstract
While ionic liquids (ILs) have been considered as effective and "green" solvents for biopolymer processing, regeneration of IL-dissolved biopolymers could largely impact biopolymer structure and properties. This study indicates that the reconstitution of chitosan structure during regeneration from 1-ethyl-3-methylimidazolium acetate ([Emim][OAc]) depends on anti-solvent (water, methanol or ethanol) largely. Irrespective of anti-solvent, the chitosan chemical structure was not varied by dissolution or regeneration. With water, the regenerated chitosan had the highest crystallinity index of 54.18%, followed by those with methanol (35.07%) and ethanol (25.65%). Water as an anti-solvent could promote chitosan chain rearrangement, leading to the formation of an ordered aggregated structure and crystallites. Density functional theory (DFT) simulation indicates that the number of hydrogen bonds formed between anti-solvents and [Emim][OAc] was in the order of water > methanol > ethanol. With water used for regeneration, the aggregation and rearrangement of chitosan chains occurred more easily.
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Affiliation(s)
- Xiaoyan Tan
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Guowei Wang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Lei Zhong
- Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530008, China
| | - Fengwei Xie
- International Institute for Nanocomposites Manufacturing (IINM), WMG, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Ping Lan
- Guangxi Key Laboratory for Polysaccharide Materials and Modification, School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530008, China
| | - Bo Chi
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
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