Wang Shi-Ming, Huang Qun-Zeng, Wang Qiong-Sheng
College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, China.
Carbohydr Res. 2005 May 2;340(6):1143-7. doi: 10.1016/j.carres.2005.02.009.
Chitosan was effectively degraded by hydrogen peroxide under irradiation with ultraviolet light. The existence of a synergetic effect on the degradation was demonstrated by means of viscometry. In addition, the optimal conditions of degradation were determined on the basis of orthogonal tests. The structure of the degraded product was characterized by Fourier-transform infrared spectra (FTIR) analysis and diffuse reflectance spectra (DRS) analysis. The mechanism of the degradation of chitosan was correlated with cleavage of the glycosidic bond.
壳聚糖在紫外光照射下能被过氧化氢有效降解。通过粘度测定法证明了降解过程中存在协同效应。此外，基于正交试验确定了降解的最佳条件。采用傅里叶变换红外光谱（FTIR）分析和漫反射光谱（DRS）分析对降解产物的结构进行了表征。壳聚糖的降解机制与糖苷键的断裂有关。
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