Department of Chemistry, Faculty of Food Technology, University of Agriculture, Balicka St. 122, PL-30-149 Cracow, Poland.
Department of Chemistry, Faculty of Food Technology, University of Agriculture, Balicka St. 122, PL-30-149 Cracow, Poland.
Carbohydr Polym. 2020 Jul 15;240:116244. doi: 10.1016/j.carbpol.2020.116244. Epub 2020 Apr 16.
Graphene oxide (GO) and multi-walled carbon nanotubes (MWCNTs) were added to furcellaran films (FUR). Silver nanoparticles (AgNPs) were prepared by reducing AgNO using a FUR matrix as the stabilising agent. The structure and surface morphology of nanocomposite films were obtained using FTIR, SEM and XRD. The molecular weights of furcellaran chains were estimated using HPSEC-MALLS-RI. Characterisation of the films was undertaken to analyse their physical, mechanical and structural properties. SEM analysis revealed that GO, MWCNTs and AgNPs were evenly distributed throughout the FUR surface. FUR + AgNP films showed antimicrobial activity against bacteria and fungi. P. aeruginosa, E. faecalis and S. aureus were the most affected with effective growth inhibition using the disc diffusion method. In the study, the effect of nanofillers on the structural, thermal, mechanical and antimicrobial properties of furcellaran films as potential materials for food packaging is presented.
氧化石墨烯（GO）和多壁碳纳米管（MWCNTs）被添加到纤维二糖呋喃（FUR）薄膜中。使用 FUR 基质作为稳定剂，通过还原 AgNO 制备银纳米颗粒（AgNPs）。使用 FTIR、SEM 和 XRD 获得纳米复合材料薄膜的结构和表面形态。使用 HPSEC-MALLS-RI 估计纤维二糖呋喃链的分子量。对薄膜进行了表征，以分析其物理、机械和结构性能。SEM 分析表明，GO、MWCNTs 和 AgNPs 均匀分布在 FUR 表面。FUR+AgNP 薄膜对细菌和真菌表现出抗菌活性。使用圆盘扩散法，铜绿假单胞菌、粪肠球菌和金黄色葡萄球菌受到的影响最大，其生长受到有效抑制。在这项研究中，研究了纳米填料对纤维二糖呋喃薄膜的结构、热学、机械和抗菌性能的影响，这些薄膜作为食品包装的潜在材料。
