食品工业科技2024，Vol.45Issue(13)：1-8,8.DOI:10.13386/j.issn1002-0306.2023080140
壳寡糖交联明胶可生物降解薄膜的制备与性能研究
Preparation and Properties of Oligo-chitosan Cross-linked Gelatin Biodegradable Films
摘要
Abstract
Objective:The aim was to evaluate the effect of oligo-chitosan modification on the properties of gelatin-based films.Methods:The gelatin-based films were prepared by using gelatin extracted from scrap pig skin as a cheap raw material and chitosan and polyvinyl alcohol as cross-linking agents.The structural and mechanical properties were characterized by Fourier infrared spectroscopy,X-ray power diffractometry,scanning electron microscopy,spectroscopy,and tensile test.Meanwhile,the ability of gelatin-based films in antioxidant,antibacterial,water stability and biodegradation were evaluated.Results:The multi-cross-linked gelatin-based films showed excellent mechanical properties,with a highest fracture stress of 37.09 MPa,a maximum tearing energy of 56.71 kJ/m2,and a good physical form maintained after 48 h of immersion in water.In addition,the films possessed excellent light transmission(up to 92.32％),good oxidation resistance(radical scavenging capacity up to 75.12％),excellent antimicrobial and biodegradability(complete degradation time＜45 h).Conclusions:The addition of oligo-chitosan has changed the properties of gelatin-based films in mechanics and biodegradation,and endowed the films with good antibacterial and antioxidant capacity,indicating that it had great potential application value in food packaging.关键词
明胶/壳寡糖/交联/可生物降解薄膜/性能Key words
gelatin/oligo-chitosan/crosslinking/biodegradable film/property分类
轻工纺织引用本文复制引用
刘桂艳,王贝,杨若熙,秦中立..壳寡糖交联明胶可生物降解薄膜的制备与性能研究[J].食品工业科技,2024,45(13):1-8,8.基金项目
湖北省教育厅科学研究计划指导性项目(B2021394) （B2021394）
教育部产学合作协同育人项目(202101139004). （202101139004）
