文献类型：期刊文献

英文题名：Effect of chitosan grafting oxidized bacterial cellulose on dispersion stability and modulability of biodegradable films

作者：Liu, Xiaoli[1,3];Xu, Yixin[1];Guo, Caoyu[1];Zhang, Chaohua[2];Liu, Shucheng[2];Gao, Jialong[2];Lin, Guangming[3];Yang, Huanbin[3];Xia, Wenshui[1]

机构：[1]Jiangnan Univ, Collaborat Innovat Ctr Food Safety & Qual Control, Sch Food Sci & Technol, State Key Lab Food Sci & Technol, Lihu Rd 1800, Wuxi 214122, Jiangsu, Peoples R China;[2]Guangdong Ocean Univ, Coll Food Sci & Technol, Guangdong Prov Key Lab Aquat Prod Proc & Safety, Zhanjiang 524088, Peoples R China;[3]Wuqiong Foods Co Ltd, Chaozhou 515700, Guangdong, Peoples R China

年份：2022

卷号：204

起止页码：510

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：SCI-EXPANDED(收录号：WOS:000784299000004)、、EI(收录号：20240815603980)、Scopus(收录号：2-s2.0-85124561803)、WOS

基金：This work was granted financial support from China Postdoctoral Science Foundation (No. 2020M682924) , Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety (GDPKLAPPS1902) , Guangdong Innovation Team of Seafood Green Processing Technology (2019KCXTD011) , and Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province.

语种：英文

外文关键词：Chitosan; Grafting action; Oxidized bacterial cellulose; Biodegradable film

外文摘要：Bacterial cellulose (BC) is a kind of high-purity cellulose biomaterial with a unique three-dimensional structure. To improve the mechanical properties and reinforce the BC composite films, in this study, we provide in detail a simple, fast, and environmentally-friendly method to prepare a biodegradable composite film using chitosan (CS) with different molecular weights and BC with excellent dispersion. The water moisture content (MC), water solubility (WS), contact angle (CA), mechanical properties and barrier properties were measured to assess the effect of CSn-OBC composite films. The morphology, structural and thermal properties of the films were evaluated by scanning electron microscopy, spectral analysis, thermogravimetry and X-ray diffraction. Results showed that the biodegradable film prepared by grafting chitosan with high molecular weight and uniformly dispersing bacterial cellulose exhibited superior mechanical properties, water resistance, and thermal stability, which are essential characteristics for commercial applications in complex environments.