Abstract：
The extraction of collagen for packaging films typically requires a time-consuming process and the use of substantial chemicals. Herein, we present a full life cycle green preparation method for rapidly producing collagen-based food packaging films using Halocynthia roretzi (HR), a collagen-rich marine organism, as raw material. We first prepared the micro/nano-sized collagen fibers from HR tissue by utilizing urea and sonication as effective hydrogen-bond breakers. Subsequently, the collagen fiber was rapidly fabricated into a film through vacuum filtration. The resulting collagen fiber film (CFF) exhibited a uniform and dense surface, along with good tensile properties, water resistance, and biodegradability. In addition, the deposition of chitosan (CS) on the surface of CFF resulted in a remarkable preservation effect for both strawberries and pork. This full life cycle preparation method for collagen-based films provides a promising and innovative approach to the sustainable preparation of food packaging films.
摘要：
用于包装膜的胶原蛋白的提取通常需要耗时的过程和大量化学品的使用。在这里，我们提出了一种使用Halocynthiaroretzi（HR）快速生产胶原基食品包装膜的全生命周期绿色制备方法，富含胶原蛋白的海洋生物，作为原材料。我们首先通过利用尿素和超声处理作为有效的氢键破坏剂从HR组织制备微/纳米尺寸的胶原纤维。随后，胶原纤维通过真空过滤迅速成膜。所得胶原纤维膜(CFF)具有均匀致密的表面,随着良好的拉伸性能，耐水性,和生物降解性。此外,壳聚糖（CS）在CFF表面的沉积对草莓和猪肉均具有显着的保鲜效果。这种胶原蛋白基膜的全生命周期制备方法为食品包装膜的可持续制备提供了一种有前途的创新方法。
