Abstract

Chitosan is an alternative to synthetic polymers for food packaging. The mechanical and barrier properties of pure chitosan films are promising. Chitosan properties can be modified by combining chitosan with other components such as plasticizers, other polysaccharides, proteins and lipids. Here we review mechanical and barrier properties of composite films based on chitosan. The major points are: (1) compared with synthetic plastic films, an important limitation of chitosan-based films is their mechanical properties, especially their capacity to elongation; (2) chitosan is a polymer that allows an easy combination with other polysaccharides, plasticizers, proteins and lipids; (3) this allows to develop mixed components and modify the film properties according to the nature of the food to be packaged. 

中文翻译：

---

壳聚糖与其他成分一起用作食品包装膜的机械和阻隔性能

摘要

壳聚糖是食品包装用合成聚合物的替代品。纯壳聚糖膜的机械和阻隔性能是有前途的。壳聚糖的特性可以通过将壳聚糖与其他成分（例如增塑剂，其他多糖，蛋白质和脂质）结合使用来改变。在这里，我们综述了基于壳聚糖的复合膜的机械性能和阻隔性能。要点如下：（1）与合成塑料薄膜相比，壳聚糖基薄膜的一个重要局限在于其机械性能，特别是其伸长能力；（2）壳聚糖是一种易于与其他多糖，增塑剂，蛋白质和脂质结合的聚合物；（3）这允许根据待包装食品的性质来发展混合成分并改变膜的性质。