Preparation of amphiphilic chitosan incorporated with ursolic acid active coating films and its delay of postharvest papaya fruit ripening
文献类型： 外文期刊
作者： Liang, Fengyan 1 ; Geng, Jinwen 1 ; Yang, Ziming 2 ; Cen, Wanqi 1 ; Zhao, Miaoyu 1 ; Huang, Xunting 1 ; Wei, Changbin 2 ; Li, Puwang 2 ; Liu, Kaidong 1 ;
作者机构： 1.Lingnan Normal Univ, Life Sci & Technol Sch, Zhanjiang 524048, Peoples R China
2.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Zhanjiang 524091, Peoples R China
3.South China Normal Univ, Sch Life Sci, Guangzhou 510631, Peoples R China
4.Lingnan Normal Univ, GuangDong Engn Technol Res Ctr Trop Characterist P, Zhanjiang 524048, Peoples R China
关键词： Chitosan; Amphiphilicity; Ursolic acid; Active film; Food preservation
期刊名称：FOOD PACKAGING AND SHELF LIFE （ 影响因子：10.6； 五年影响因子：9.8 ）
ISSN： 2214-2894
年卷期： 2025 年 49 卷
页码：
收录情况： SCI
摘要： Amphiphilic chitosan (DA-CS-AG) was synthesized and incorporated with ursolic acid (UA) to develop an active coating film. Characterization techniques confirmed the preparation of DA-CS-AG, and UA was successfully entrapped in the active coating films. With the weight ratios of UA to DA-CS-AG increasing from 1:20, 2:20-4:20, the coating films exhibited increased thickness, improved water resistance, higher tensile strength, and enhanced antioxidant and antibacterial properties. As the UA/DA-CS-AG weight ratio increased from 1:20-2:20, the films' UV-shielding capability, water vapor barrier properties, and elastic properties increased. However, these properties deteriorated when the weight ratio increased to 4:20. Preservation experiments of papaya fruits demonstrated that UA/DA-CS-AG-2 coating films delayed the ripening of papaya at 25 degrees C for 16 days based on appearance, color changes, quality indexes, and sensory evaluation. In conclusion, these active coating films can serve as packaging materials for fruits and vegetables.
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