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Preparation and Crosslinking Capacity of Dialdoxylose

Authors :
JING Shutong, LI Zhengsheng’ao, LI Han, CAO Honghua, LI Xuecong, LIU Yonghao, YU Jiaqi, WEN Jingru, SUN Xun
Source :
Shipin Kexue, Vol 44, Iss 20, Pp 71-78 (2023)
Publication Year :
2023
Publisher :
China Food Publishing Company, 2023.

Abstract

Objective: To design and synthesize dialdoxylose, a glutaraldehyde analogue which is expected to have a low toxicity, and to characterize its performance in crosslinking chitosan in 1% acetic acid solution. Methods: Dialdoxylose was obtained by sodium periodate oxidation and deprotection of monoacetone glucose and used to form crosslinked chitosan gels. The gel strength, fluid properties, water activity and thermal stability of chitosan gels were analyzed by texture profile analysis (TPA), low field-nuclear magnetic resonance (NMR) spectroscopy and differential scanning calorimetry (DSC). Results: It was found that dialdoxylose exhibited two structures in water, (α,β) and (β,β), with a ratio of 44.4:65.6. The hardness, viscosity and water-holding capacity of the chitosan gel crosslinked with 0.002 g/mL dialdoxylose were highest. Conclusion: Dialdoxylose has an obvious crosslinking effect on chitosan, which is greatly affected by its concentration. The results of this study are of theoretical guiding significance for the development of new low-toxicity small-molecule crosslinking agents.

Details

Language :
English, Chinese
ISSN :
10026630
Volume :
44
Issue :
20
Database :
Directory of Open Access Journals
Journal :
Shipin Kexue
Publication Type :
Academic Journal
Accession number :
edsdoj.7e02b974ce294ce8a959063fa4a1ddb3
Document Type :
article
Full Text :
https://doi.org/10.7506/spkx1002-6630-20221203-032