Department of Food Engineering, Faculty of Engineering at Kamphaengsaen, Kasetsart University, Kamphaengsaen Campus, Nakhonpathom, 73140, Thailand.
Department of Food Engineering, Faculty of Engineering at Kamphaengsaen, Kasetsart University, Kamphaengsaen Campus, Nakhonpathom, 73140, Thailand; Center of Excellence for Agricultural and Food Machinery/Center of Advanced Studies in Industrial Technology, Kasetsart University, Thailand.
Carbohydr Polym. 2017 Oct 15;174:235-242. doi: 10.1016/j.carbpol.2017.06.085. Epub 2017 Jun 22.
Banana flour film is an alternative biopolymer material but still needs improvement of its mechanical properties and water vapor permeability. Banana starch nanoparticles (BSNs), prepared using miniemulsion cross-linking, make an interesting reinforcing agent. The properties of plasticized banana flour film (PBF) were characterized incorporated with 5% (w/w) of either montmorillonite; MMT-Na (PBF-M) or BSN (PBF-B), including a mixture of nanoparticles at 1:1 for 5% (PBF-MB5) and 10% (PBF-MB10). PBF-MB5 provided better improvement in the film mechanical and water barrier properties compared with PBF-B. Moreover, PBF-MB5 exhibited an intercalated structure as confirmed by the shift peak of pristine MMT-Na from 2θ=7.3 to 3.9° and the increase in the d-spacing from 1.21 to 2.26nm in X-ray diffraction. Fourier transform-infrared spectra confirmed the intercalated structure. Therefore, the mixture of BSN and nanoclay at 5% was sufficient to reinforce the biopolymer films as a biomaterial packaging for food and pharmaceutical applications.
香蕉粉膜是一种可替代的生物聚合物材料，但仍需要改善其机械性能和水蒸气透过率。使用微乳液交联制备的纳米淀粉颗粒（BSN）是一种很有趣的增强剂。将 5%（w/w）的蒙脱土纳米黏土（PBF-M）或 BSN（PBF-B），或按 1:1 的比例混合 5%（PBF-MB5）和 10%（PBF-MB10）的纳米颗粒加入到增塑香蕉粉膜（PBF）中，对其性能进行了表征。与 PBF-B 相比，PBF-MB5 显著提高了薄膜的机械性能和阻隔性能。此外，X 射线衍射表明，PBF-MB5 呈现出插层结构，原蒙脱土纳米黏土的峰值从 2θ=7.3 移至 3.9°，层间距从 1.21nm 增加到 2.26nm。傅里叶变换红外光谱证实了插层结构的存在。因此，5%的 BSN 和纳米黏土混合物足以增强生物聚合物薄膜，可作为食品和制药应用的生物材料包装。
