Abstract：
In this study, we inserted a dynamic chemical reaction system that can generate CO2 into Janus hydrogel (JH) to develop a multidimensional preservation platform that integrates hygroscopicity, antibacterial activity, and modified atmospheric capacity. The double gel system developed using sodium alginate/trehalose at a 1:1 ratio effectively encapsulated 90% of citric acid. Furthermore, CO2 loss was avoided by separately embedding NaHCO3/cinnamon essential oil and citric acid microcapsules into a gelatin pad to develop JH. Freeze-dried JH exhibited a porous and asymmetric structure, very strongly absorbing moisture, conducting water, and rapidly releasing CO2 and essential oils. Furthermore, when preserving various fruits and vegetables in practical settings, JH provided several preservation effects, including color protection, microbial inhibition, and antioxidant properties. Our study findings broaden the application of JH technology for developing chemical reaction systems, with the resulting JH holding substantial promise for cold chain logistics.
摘要：
在这项研究中,我们在Janus水凝胶（JH）中插入了可以产生CO2的动态化学反应系统，以开发集成吸湿性的多维保存平台，抗菌活性，和改变大气容量。使用藻酸钠/海藻糖以1:1的比例开发的双凝胶系统有效地包封了90%的柠檬酸。此外，通过将NaHCO3/肉桂精油和柠檬酸微胶囊分别嵌入明胶垫中以形成JH，可以避免CO2损失。冷冻干燥的JH表现出多孔和不对称的结构，非常强烈地吸收水分，导电水,迅速释放二氧化碳和精油。此外，在实际环境中保存各种水果和蔬菜时，JH提供了几种保存效果，包括颜色保护，微生物抑制，和抗氧化性能。我们的研究结果拓宽了JH技术在开发化学反应系统中的应用，由此产生的JH持有冷链物流的实质性承诺。
