Kurd Forouzan, Fathi Milad, Shahedi Mohammad, Soltanizadeh Nafiseh
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
Food Res Int. 2025 May;209:116268. doi: 10.1016/j.foodres.2025.116268. Epub 2025 Mar 30.
In this study cellulose nanofibrils (CNFs)/poly vinyl alcohol (PVA) aerogels were produced and the effect of the concentration of CNF/PVA on porosity, density, pore size, water absorption, water vapor absorption, and mechanical properties were studied. CNFs were developed using peanut shells as agricultural waste. Curcumin (CUR) was incorporated into the aerogel matrix at different concentrations (30 %, 40 %, and 50 %). The best bioactive aerogel pad was selected based on its encapsulation efficiency (80.57 ± 0.29 %), loading capacity (22.85 ± 0.22 %), and antioxidant properties (74.14 ± 0.31 %). The aerogels loaded with CUR were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The bioactive aerogel pads showed antibacterial properties against Staphylococcus aureus. The cumulative release (65 %) of CUR from the aerogel matrix for 8 days, indicates a sustained release in meat-simulated media, which is suitable for increasing the shelf life of meat. The kinetics of the release showed that the Ritger-Peppas and Peppas-Sahlin models are the best models for the meat-simulated media. The storage results indicated that the package containing the aerogels loaded with CUR could increase the shelf life of meat from 6 to 8 days compared to the package containing the aerogels without CUR and the control package. Finally, this research provides a suitable strategy in the field of food packaging to produce multifunctional antimicrobial pads based on biodegradable agricultural waste.
在本研究中，制备了纤维素纳米纤维（CNFs）/聚乙烯醇（PVA）气凝胶，并研究了CNF/PVA浓度对孔隙率、密度、孔径、吸水性、水蒸气吸收性和机械性能的影响。使用花生壳作为农业废弃物来制备CNFs。将姜黄素（CUR）以不同浓度（30%、40%和50%）掺入气凝胶基质中。根据其包封效率（80.57±0.29%）、负载量（22.85±0.22%）和抗氧化性能（74.14±0.31%）选择最佳的生物活性气凝胶垫。通过扫描电子显微镜、傅里叶变换红外光谱和热重分析对负载CUR的气凝胶进行了表征。生物活性气凝胶垫对金黄色葡萄球菌具有抗菌性能。CUR从气凝胶基质中的累积释放量（65%）在8天内，表明在肉类模拟介质中具有持续释放特性，这适用于延长肉类的保质期。释放动力学表明，Ritger-Peppas模型和Peppas-Sahlin模型是肉类模拟介质的最佳模型。储存结果表明，与不含CUR的气凝胶包装和对照包装相比，含有负载CUR气凝胶的包装可将肉类的保质期从6天延长至8天。最后，本研究为食品包装领域基于可生物降解农业废弃物生产多功能抗菌垫提供了一种合适的策略。
