Department of Packaging and Materials Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand.
School of Packaging, Michigan State University, East Lansing, MI 48824-1223, USA.
Int J Biol Macromol. 2024 May;267(Pt 1):131185. doi: 10.1016/j.ijbiomac.2024.131185. Epub 2024 Mar 31.
Sustainable poly(butylene succinate) (PBS) films incorporating lignin nanoparticles (LN) and trans-cinnamaldehyde (CN) have been developed to preserve mango freshness and provide food safety. PBS/LN, PBS/CN, and PBS/LN/CN composite films were produced by blown film melt extrusion. This study investigated the effect of CN-LN on the CN remaining content, thermal, mechanical, and barrier properties, diffusion coefficient, and antifungal activity of PBS films both in vitro and in vivo. Results showed that LN in the PBS/LN/CN composite film contained more CN than in the PBS/CN film. The compatibility of CN-LN with PBS produced homogeneous surfaces with enhanced barrier properties. PBS/LN/CN composite films demonstrated superior antifungal efficacy, inhibiting the growth of Colletotrichum gloeosporioides and preserving mango quality during storage. Results suggested that incorporating LN into PBS composite films prolonged the sustained release of antifungal agents, thereby inhibiting microbial growth and extending the shelf life of mangoes. Development of PBS/LN/CN composite films is a beneficial step toward reducing food waste and enhancing food safety.
已开发出可持续的聚丁二酸丁二醇酯（PBS）薄膜，其中包含木质素纳米粒子（LN）和反式肉桂醛（CN），以保持芒果的新鲜度并提供食品安全。通过吹塑薄膜熔融挤出法制备了 PBS/LN、PBS/CN 和 PBS/LN/CN 复合薄膜。本研究调查了 CN-LN 对 PBS 薄膜中 CN 残留含量、热性能、机械性能和阻隔性能、扩散系数和抗真菌活性的影响，无论是在体外还是体内。结果表明，PBS/LN/CN 复合薄膜中的 LN 比 PBS/CN 薄膜中含有更多的 CN。CN-LN 与 PBS 的相容性产生了具有增强阻隔性能的均匀表面。PBS/LN/CN 复合薄膜表现出优异的抗真菌功效，抑制了胶孢炭疽菌的生长，并在储存过程中保持了芒果的品质。结果表明，将 LN 掺入 PBS 复合薄膜中可延长抗真菌剂的持续释放，从而抑制微生物生长并延长芒果的保质期。开发 PBS/LN/CN 复合薄膜是减少食物浪费和提高食品安全的有益步骤。
