Issue 42, 2017

Evaluation of the degree of chitosan deacetylation via induced-electrical properties

Abstract

The properties and functionalities of chitosan are closely related to its degree of deacetylation (DD). This study aimed to determine the DD of chitosans, which were of identical molecular weight, by a proposed electro-analytical system based on inductive methodology. Statistically significant differences in electrical parameters, including terminal voltage (US) and λ (the ratio of primary voltage to US) were observed among chitosans with different DDs. Both US and λ were linearly correlated with the DD value, regardless of frequency, suggesting that these electrical parameters can be used to determine the DD of chitosan. More chitosan's coils contributed to higher measurement accuracy, but the change in measurement position showed no improvement. The highest linear coefficient of determination (0.9941) between DD and US was obtained by the experimental transformer with 100-turn chitosan's coils at a primary voltage of 10 V and a frequency of 400 Hz. This study explored the potential of an innovative electro-analytical system to determine the DD of chitosan.

Graphical abstract: Evaluation of the degree of chitosan deacetylation via induced-electrical properties

Article information

Article type
Paper
Submitted
27 Mar 2017
Accepted
10 May 2017
First published
16 May 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 26211-26219

Evaluation of the degree of chitosan deacetylation via induced-electrical properties

D. Li, L. Guo, N. Yang, Y. Zhang, Z. Jin and X. Xu, RSC Adv., 2017, 7, 26211 DOI: 10.1039/C7RA03545D

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