海藻酸钠包装膜的性能提升研究进展

Research progress on the performance improvement of sodium alginate packaging film

中文关键词:  海藻酸钠  机械性能  水蒸气阻隔性能  抑菌性  抗氧化性

英文关键词:sodium alginate  mechanical performance  water vapor barrier performance  antibacterial activity  antioxidant properties

中文摘要:

      海藻酸钠是褐藻中一种大量存在的多糖类化合物, 低热无毒、生物相容性好、可降解, 具有良好的增稠性、成膜性及稳定性等特点, 因此可作为环境友好型食品保鲜材料代替传统塑料保鲜膜。但是海藻酸钠膜存在机械性能、抗水性和抑菌性能较差等缺点, 限制了其在食品包装领域的应用。大量研究表明, 通过添加不同物质可以显著改善海藻酸钠成膜后的性能。本文综述了改善海藻酸钠膜拉伸强度、断裂伸长率、水蒸气透过率和抑菌性等性能提升的研究进展, 分析了各物质之间的相互作用及对复合膜性能的影响, 并对目前海藻酸钠膜存在的问题和发展前景进行了总结与展望, 以期为海藻酸钠膜在食品包装领域的研究和应用提供参考。

英文摘要:

      Sodium alginate is a kind of polysaccharide compound that exists in large quantities in brown algae, which is low-heat and non-toxic, biocompatible and degradable, and has good thickening, film-forming and stability characteristics, so it can be used as an environmentally friendly food preservation material to replace the traditional plastic preservation film. However, sodium alginate film has shortcomings such as poor mechanical properties, water resistance and bacteriostatic properties, which limit its application in the field of food packaging. A large number of studies have shown that the performance of sodium alginate film can be significantly improved by adding different substances after film formation. This paper reviewed the research progress of improving the tensile strength, elongation at break, water vapor transmission rate and bacteriostatic properties of sodium alginate film, analyzed the interaction between the substances and their influence on the performance of composite film, and summarizes and prospected the current problems and development prospects of sodium alginate film, with a view to providing references for the research and application of sodium alginate film in the field of food packaging.