College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 6068502, Japan.
Food Chem. 2019 Aug 1;288:139-145. doi: 10.1016/j.foodchem.2019.03.010. Epub 2019 Mar 6.
Curcumin loaded mesoporous silica nanoparticle (SBA-15) was incorporated into chitosan (CS) film to improve the functional properties of pure CS film. Curcumin was loaded into SBA-15 (SBA-15-Cur) through a rotavapor method. The structural properties of SBA-15-Cur were characterised in detail by small-angle X-ray scattering, fourier transform-infrared (FT-IR) spectroscopy, transmission electron microscopy and N adsorption-desorption analyses. The CS/SBA-15-Cur bionanocomposite film was prepared by solvent casting. The mechanical properties of the bionanocomposite film were improved by the addition of the SBA-15-Cur nanofiller, as revealed by the FT-IR analysis of the biocomposite film. However, the water vapour permeability of the films was not significantly influenced by the filler. Release studies suggested that the CS/SBA-15-Cur bionanocomposite film exhibited pH-responsive and sustained release behaviour of curcumin. The CS/SBA-15-Cur film demonstrated efficient antimicrobial activity against Staphylococcus aureus and Escherichia coli. These data indicated that the CS/SBA-15-Cur bionanocomposite film could be a promising active food packaging material.
载姜黄素介孔硅纳米粒子（SBA-15）被掺入壳聚糖（CS）薄膜中，以改善纯 CS 薄膜的功能特性。姜黄素通过旋转蒸发法载入 SBA-15（SBA-15-Cur）中。通过小角 X 射线散射、傅里叶变换红外（FT-IR）光谱、透射电子显微镜和 N 吸附-解吸分析详细表征了 SBA-15-Cur 的结构特性。通过溶剂浇铸制备了 CS/SBA-15-Cur 生物纳米复合材料薄膜。通过添加 SBA-15-Cur 纳米填料，改善了生物复合材料薄膜的机械性能，这可以通过生物复合材料薄膜的 FT-IR 分析得到证实。然而，薄膜的水蒸气透过率并没有被填料显著影响。释放研究表明，CS/SBA-15-Cur 生物纳米复合材料薄膜表现出对姜黄素的 pH 响应和持续释放行为。CS/SBA-15-Cur 薄膜对金黄色葡萄球菌和大肠杆菌表现出有效的抗菌活性。这些数据表明，CS/SBA-15-Cur 生物纳米复合材料薄膜可能是一种有前途的活性食品包装材料。
