Król-Kilińska Żaneta, Kulig Dominika, Zimoch-Korzycka Anna, Reszke Edward, Bobak Łukasz, Jurić Slaven, Jarmoluk Andrzej
Department of Functional Food Products Development, The Faculty of Biotechnology and Food Science, Wroclaw University of Environmental and Life Sciences, Chelmonskiego 37/41, 51-630 Wroclaw, Poland.
Plasma Investment Ltd., Research and Development Department, Wroclaw Technology Park, 13 Dunska Str., 54-427 Wroclaw, Poland.
Int J Mol Sci. 2024 Dec 14;25(24):13427. doi: 10.3390/ijms252413427.
This study aimed to evaluate the influence of indirect-plasma-treated water (IPTW) in the preparation of hydrogels. Three commonly used natural, biodegradable polymers with the ability to form gels were selected: gelatin, carrageenan, and sodium alginate. The pH, gelling temperature, texture profile, swelling degree, and color of hydrogels were evaluated, and the polymers were subjected to Fourier-transform infrared (FTIR) spectroscopy. The morphology of the hydrogels was investigated using Scanning Electron Microscopy (SEM). Additionally, the physiochemical properties of the water media, which were distilled water (DW) and IPTW, were analyzed. The results indicated that the gels prepared using IPTW were characterized by a lower pH, higher hardness and lower gelation temperature. After 48 h of swelling ratio (SR) testing, gelatin and alginate hydrogels made with IPTW were characterized by lower SR, while an inverse relationship was found in the case of SR of carrageenan gels. The FTIR analysis confirmed changes in the water binding ability. The use of IPTW also significantly affected the microstructure of the tested materials. A statistically significant change in the color of IPTW gel samples was also noted. The results showed that IPTW induces physicochemical changes in hydrogels, which can lead to the enhancement of their practical applications.
本研究旨在评估间接等离子体处理水（IPTW）在水凝胶制备中的影响。选择了三种常用的具有形成凝胶能力的天然可生物降解聚合物：明胶、卡拉胶和海藻酸钠。评估了水凝胶的pH值、凝胶化温度、质地剖面、溶胀度和颜色，并对聚合物进行了傅里叶变换红外（FTIR）光谱分析。使用扫描电子显微镜（SEM）研究了水凝胶的形态。此外，还分析了作为蒸馏水（DW）和IPTW的水介质的物理化学性质。结果表明，使用IPTW制备的凝胶具有较低的pH值、较高的硬度和较低的凝胶化温度。在溶胀率（SR）测试48小时后，用IPTW制备的明胶和海藻酸钠水凝胶的特点是SR较低，而卡拉胶水凝胶的SR情况则相反。FTIR分析证实了水结合能力的变化。IPTW的使用也显著影响了测试材料的微观结构。还注意到IPTW凝胶样品的颜色有统计学上的显著变化。结果表明，IPTW会引起水凝胶的物理化学变化，这可能导致其实际应用的增强。
