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Selectivity of deproteinization and demineralization using natural deep eutectic solvents for production of insect chitin (Hermetia illucens)

文献类型： 外文期刊

作者： Zhou, Pengfei 1 ; Li, Jingbo 2 ; Yan, Tao 3 ; Wang, Xuping 1 ; Huang, Jing 1 ; Kuang, Zheshi 1 ; Ye, Mingqiang 1 ; Pan, M 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Guangzhou 510610, Guangdong, Peoples R China

2.MIT, Dept Chem Engn, Cambridge, MA 02142 USA

3.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Hubei, Peoples R China

关键词： Natural deep eutectic solvents; Chitin; Deproteinization; Demineralization; Hermetia illucens

期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：9.381； 五年影响因子：8.678 ）

ISSN： 0144-8617

年卷期： 2019 年 225 卷

页码：

收录情况： SCI

摘要： Selectivity of deproteinization and demineralization using natural deep eutectic solvents for preparation of insect chitin (Hermetia illucens) was investigated. The relationships between the pH and pKa values of NADESs and demineralization, deproteinization and crystallinity indexes of the obtained chitin were discussed, respectively. It was found that the acidic NADESs consist of basic hydrogen bond acceptor (HBA) and acidic hydrogen bond donor (HBD), or the alkali NADESs composed of acid HBA and alkali HBD were better for chitin products. After reused for three times, demineralization and deproteinization abilities of NADESs were not significantly decreased. Mechanistic analysis indicated that H+ released from HBA or HBD was the main reason for demineralization, whereas intermolecular and intramolecular hydrogen bond in NADESs facilitates the removal of protein. Overall, this report provides a preliminary reference for design of the sustainable NADESs for preparation of chitin from natural resources.

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