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Published in: Cellulose 4/2022

25-01-2022 | Original Research

Construction of hydrogels based on the chitin from Hericium erinaceus residue: role of molecular weight

Authors: Jing Liao, Huihua Huang

Published in: Cellulose | Issue 4/2022

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Abstract

Chitin hydrogels with different molecular weight (Mw) were prepared by the ultrasonic degradation of chitin from Hericium erinaceus residue. The effects of Mw on the properties of the prepared chitin hydrogels were investigated. Results showed that the Mw of chitin was decreasing with the prolongation of the ultrasonic time. As the decrease of Mw, the gel strength of the chitin hydrogels weakened, whereas the swelling degree was enhanced. In addition, the formation of chitin hydrogels was through cross-linking the smallest nano-scale solid domains, whose size was not affected by the Mw of chitin, whereas the gel yield of the chitin hydrogels was decreasing as the Mw of chitin decreased. Therefore, decreasing the Mw of chitin reduced the amount of effective chitin that can participate in the cross-linking reaction, thereby reducing the gel yield and the cross-linking density of the chitin hydrogels, resulting in the weakened gel strength but enhanced swelling degree.

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Literature
Metadata
Title
Construction of hydrogels based on the chitin from Hericium erinaceus residue: role of molecular weight
Authors
Jing Liao
Huihua Huang
Publication date
25-01-2022
Publisher
Springer Netherlands
Published in
Cellulose / Issue 4/2022
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-022-04439-3