中国塑料2024，Vol.38Issue(10)：16-22,7.DOI:10.19491/j.issn.1001-9278.2024.10.004
壳聚糖/紫山药花青素/纳米氧化锌pH响应智能复合膜制备及性能研究
Preparation and performance of chitosan/purple yam anthocyanin/ZnO nanoparticles composites as pH-responsive smart films
摘要
Abstract
A type of smart composite packaging film consisting of chitosan(CS),purple yam anthocyanin extract(PYE),ZnO nanoparticles(NPs)was prepared,and the effects of addition amounts of ZnO NPs on the mechanical properties,thermal stability,water vapor barrier performance,and antioxidant properties of the composite films were in-vestigated.The results indicated that the synergistic effect of ZnO NPs and PYE resulted in a significant improvement in the tensile strength,thermal stability,antioxidant properties,and vapor barrier performance of the composite films.When 2 wt%ZnO NPs were added,the resultant composite film exhibited an increase in the tensile strength from 26.58 to 41.79 MPa along with a slight decrease in the elongation at break.Its initial decomposition temperature also increased from 256.12 to 271.41℃,but its water vapor transmission rate decreased by about 17%.In addition,the addition of ZnO NPs enhanced the antioxidant and antimicrobial properties of the composite film.In practical application,this com-posite film exhibited pH sensitivity,and it could visually detect a change in the quality of shrimp during storage through a change in color,providing a facile method for food safety monitoring.关键词
壳聚糖/花青素/纳米氧化锌/紫山药/智能包装Key words
chitosan/anthocyanin/ZnO nanoparticle/purple yam/smart packaging分类
化学化工引用本文复制引用
韦阿飞,李秋怡,冯雪梦,黄钰莹,潘远凤..壳聚糖/紫山药花青素/纳米氧化锌pH响应智能复合膜制备及性能研究[J].中国塑料,2024,38(10):16-22,7.基金项目
国家自然科学基金项目(22068006) （22068006）
广西大学"大学生创新创业训练计划"资助项目(S202310593265) （S202310593265）
