Insight into the structure-function relationships of the solubility of chitin/chitosan in natural deep eutectic solvents
文献类型： 外文期刊
作者： Wang, Xuping 1 ; Zhou, Pengfei 1 ; Lv, Xiaojing 2 ; Liang, Yongjia 2 ;
作者机构： 1.Guangdong Acad Agr Sci, Key Lab Funct Foods Minist Agr & Rural Affairs, Sericultural & Agrifood Res Inst, Minist Agr & Rural Affairs,Key Lab Agr Prod Proc, Guangzhou 510610, Peoples R China
2.Zhongkai Univ Agr & Engn, Coll Chem & Chem Engn, Guangzhou 510225, Peoples R China
关键词： Natural deep eutectic solvents; Chitin; Chitosan; Solubility; Structure-function relationship
期刊名称：MATERIALS TODAY COMMUNICATIONS （ 影响因子：3.383； 五年影响因子：3.145 ）
ISSN：
年卷期： 2021 年 27 卷
页码：
收录情况： SCI
摘要： Recently, the development of solution processing of chitin/chitosan in natural deep eutectic solvents (NADESs) is one of the most promising strategies for handling insoluble biopolymers. A facile and efficient approach including choline chloride-based and betaine-based NADESs, were designed as solvents for chitin/chitosan with various degree of deacetylation (DD). The maximum solubility of chitin/chitosan (10.2 g/100 g) was obtained in NADESs composed of choline chloride-lactic acid (ChLa). The relationships between the solubility, crystallinity index (CrI), and DD of the dissolved chitin/chitosan with different pH values of NADESs were discussed, and the results indicated that DD of chitin/chitosan dominated its solubility. Furthermore, mechanistic analysis showed that the hydrogen-bonding interactions contained NH center dot center dot center dot OH or OH center dot center dot center dot OH between chitin and NADESs was the possible reason for better solubility of chitin in ChLa. The NADESs-chitin processing platform in this text reveals the potential of NADESs for the environmentally-aware research and developing chitin-based industrial processes and products.
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