Xylan/chitosan composites prepared by an ionic liquid system with unique antioxidant properties

作     者：Hailong Gao Na Liu Shuzhen Ni Haixia Lin Yingjuan Fu 

作者机构：Key Laboratory of Pulp&Paper Science and Technology of Ministry of EducationQilu University of TechnologyJinanShandong250353China Department of Pulp and Paper Science and TechnologyNanjing Forestry UniversityNanjingJiangsu210037China 

出 版 物：《Journal of Bioresources and Bioproducts》 (生物质资源与工程（英文）)

年 卷 期：2017年第2卷第3期

页      面：100-104页

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：support from the key research and development program of Shandong province (Grant No.2016GGX108002) the National Natural Science Fund (31370581) 

主　　题：Chitosan Xylan Composite Ionic liquid Antioxidant Chelating metal ion 

摘      要：Antioxidant function and solubility in water are highly desirable in many applications of *** this paper,a xylan/chitosan composite was prepared in an ionic liquid system using glutaraldehyde as a crosslinking *** antioxidant activity,reducing capacity and metal ion chelating ability of the resulting composite were *** chemical structure and thermal stability were analyzed by FT-IR,XRD and *** results showed that chitosan was successfully cross-linked with xylan by glutaraldehyde in the ionic liquid *** to pure chitosan,the ABTS·+scavenging activity of the xylan/chitosan composite increased from 10.56%to 97.59%.After cross-linking with xylan by glutaraldehyde,the reducing power of xylan/chitosan composite increased from 0.054 to *** capacity of chelating metal ion of the composite also increased from 42.35%to 86.71%compared to that of pure *** underlying mechanism was proposed to account for the improvement of the chemical properties of the chitosan in the composite.