Plasma Depolymerization of Chitosan in the Presence of Hydrogen Peroxide

International Journal of Molecular Sciences

Fengming Ma¹  Zhenyu Wang¹  Haitian Zhao¹ 

[1] School of Food Science and Engineering, Harbin Institute of Technology, 73 Huanghe Road, Nangang District, Harbin 150090, China; E-Mails:

关键词: gas discharge;    plasma;    H₂O₂;    depolymerization;    chitosan;   

DOI  :  10.3390/ijms13067788

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.