Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
Food Chem. 2024 Mar 30;437(Pt 1):137891. doi: 10.1016/j.foodchem.2023.137891. Epub 2023 Oct 29.
The poor biological, mechanical and water-resistance properties of sodium alginate/guar gum film (SG) limit its application in food preservation. To overcome this disadvantage, we added β-Cyclodextrin/persimmon pectin-stabilized baobab seed oil Pickering emulsion (BOPE) to enhance the mechanical and water resistance properties of SG film, and added green synthesized silver nanoparticles (AgNPS) and Lycium ruthenicum extract (LA) to improve the biological properties of the film. The properties of BOPE was optimized using Box-Behnken design (BBD). Scanning electron microscope and Fourier transform infrared results revealed the change of structure and molecular interaction in the SG film after the addition of AgNPS, LA, and optimized BOPE. The 2.0%BOPE-loaded film containing AgNPS/LA with the enhanced mechanical, barrier, BO retention, and biological properties not only improved the preservation effect on mushroom (A. bisporus), but also maintained structural stability. Thus, the 2.0%BOPE-loaded SG/LA/AgNPS film has considerable potential in active packaging applications.
海藻酸钠/瓜尔胶膜（SG）的生物、机械和耐水性差，限制了其在食品保鲜中的应用。为了克服这一缺点，我们添加了β-环糊精/柿果胶稳定的猴面包树籽油 Pickering 乳液（BOPE）来增强 SG 膜的机械和耐水性，并添加了绿色合成的银纳米粒子（AgNPS）和枸杞提取物（LA）来改善膜的生物性能。采用 Box-Behnken 设计（BBD）优化了 BOPE 的性能。扫描电子显微镜和傅里叶变换红外结果表明，在添加 AgNPS、LA 和优化的 BOPE 后，SG 膜的结构和分子相互作用发生了变化。含有 2.0%BOPE 的负载 AgNPS/LA 的 SG 膜具有增强的机械、阻隔、BO 保留和生物性能，不仅改善了对蘑菇（A. bisporus）的保鲜效果，而且保持了结构稳定性。因此，负载 2.0%BOPE 的 SG/LA/AgNPS 膜在活性包装应用中具有相当大的潜力。
