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Plasma Depolymerization of Chitosan in the Presence of Hydrogen Peroxide
School of Food Science and Engineering, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, China
College of Forestry, Northeast Forestry University, 26 Hexing Road Xiangfang District, Harbin 150040, China
* Author to whom correspondence should be addressed.
Received: 23 April 2012; in revised form: 16 June 2012 / Accepted: 18 June 2012 / Published: 21 June 2012
Abstract: The depolymerization of chitosan by plasma in the presence of hydrogen peroxide (H2O2) was investigated. The efficiency of the depolymerization was demonstrated by means of determination of viscosity-average molecular weight and gel permeation chromatography (GPC). The structure of the depolymerized chitosan was characterized by Fourier-transform infrared spectra (FT-IR), ultraviolet spectra (UV) and X-ray diffraction (XRD). The results showed that chitosan can be effectively degradated by plasma in the presence of H2O2. The chemical structure of the depolymerized chitosan was not obviously modified. The combined plasma/H2O2 method is significantly efficient for scale-up manufacturing of low molecular weight chitosan.
Keywords: gas discharge; plasma; H2O2; depolymerization; chitosan
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Ma, F.; Wang, Z.; Zhao, H.; Tian, S. Plasma Depolymerization of Chitosan in the Presence of Hydrogen Peroxide. Int. J. Mol. Sci. 2012, 13, 7788-7797.
Ma F, Wang Z, Zhao H, Tian S. Plasma Depolymerization of Chitosan in the Presence of Hydrogen Peroxide. International Journal of Molecular Sciences. 2012; 13(6):7788-7797.
Ma, Fengming; Wang, Zhenyu; Zhao, Haitian; Tian, Shuangqi. 2012. "Plasma Depolymerization of Chitosan in the Presence of Hydrogen Peroxide." Int. J. Mol. Sci. 13, no. 6: 7788-7797.