DPPH
极限抗拉强度
明胶
壳聚糖
材料科学
防腐剂
化学工程
生物相容性
润湿
接触角
活性包装
化学
抗氧化剂
食品包装
复合材料
食品科学
有机化学
工程类
作者
Weiqian Zhao,Lian Yu,Yun Gu,Wenzhong Ma,Kehui Wang,Jing Liang,Qi Liu
标识
DOI:10.1016/j.fbio.2023.103279
摘要
In this study, gelatin (GEL)/chitosan (CS)/green tea essential oil microcapsule (GTOM) films were prepared by casting to investigate their physicochemical properties and effectiveness in preserving fresh strawberries. GTOM at a maximum content of 30% (based on the total solid mass of GEL-CS) was also well dispersed in the CS and GEL matrix. The results showed that the incorporation of GTOM imparted excellent blocking properties of the films against UV–visible light (transparency and opacity at 600 nm of 35.47% and 7.47, respectively), decent mechanical properties (tensile strength up to 11.08 MPa), good antioxidant properties (60% scavenging activity against DPPH) and satisfactory safety (96.94%). After 7 d of storage at 25 °C, packed strawberries showed the water loss of GTOM-3 compared to polystyrene preservative films (PPF) was reduced to 31.2%, and the hardness was maintained at 3.01 N, showing excellent freshness retention and effectively reducing the loss of nutritional value of strawberries. In addition, the film exhibited good hydrophobicity and inherent biocompatibility, and these results indicate the remarkable potential of the new film for application, making it a promising high-performance preservation material.
科研通智能强力驱动
Strongly Powered by AbleSci AI