Kou Xingran, Ma Kangning, Huang Xin, Wang Hui, Ke Qinfei
Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China.
Collaborative Innovation Center of Fragrance Flavour and Cosmetics, Shanghai Institute of Technology, School of Perfume and Aroma Technology (Shanghai Research Institute of Fragrance & Flavour Industry), Shanghai 201418, China.
Foods. 2025 Mar 20;14(6):1058. doi: 10.3390/foods14061058.
In the process of ginger deep processing, a lot of waste is generated which is rich in biopolymers and active ingredients such as cellulose, starch, gingerol, and gingerol, but its low utilization rate leads to waste of resources. In this study, ginger waste residue, cellulose, and bioactive substances were spun into fiber materials by wet electrospinning technology with 1-butyl-3-methylimidazole acetate ([Bmim]Ac) as solvent. Fiber plasticization and [Bmim]Ac removal were achieved by dynamic deionized water coagulation bath. Scanning electron microscopy (SEM) and tensile strength analysis showed that the obtained GC-1 and GC-2 films have a non-uniform diameter, with a clear fiber structure and strong tensile strength. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) confirmed that cellulose transforms from type I to type II crystal structure, and [Bmim]Ac is effectively removed. The inhibition rate of 6-Shogaol-impregnated GC film against and was 99%. The experiment of strawberry preservation verified the potential of GC film in food preservation. In this study, the high-value utilization of ginger waste in food packaging was realized by preparing antibacterial electrospun fiber films.
在生姜深加工过程中，会产生大量富含生物聚合物以及纤维素、淀粉、姜辣素等活性成分的废弃物，但其利用率较低，导致资源浪费。本研究以1-丁基-3-甲基咪唑醋酸盐（[Bmim]Ac）为溶剂，采用湿法静电纺丝技术将生姜废渣、纤维素和生物活性物质纺制成纤维材料。通过动态去离子水凝固浴实现纤维增塑和[Bmim]Ac去除。扫描电子显微镜（SEM）和拉伸强度分析表明，所得的GC-1和GC-2薄膜直径不均匀，具有清晰的纤维结构和较强的拉伸强度。傅里叶变换红外光谱（FTIR）和X射线衍射（XRD）证实纤维素从I型转变为II型晶体结构，且[Bmim]Ac被有效去除。6-姜烯酚浸渍的GC薄膜对[具体菌种1]和[具体菌种2]的抑菌率为99%。草莓保鲜实验验证了GC薄膜在食品保鲜方面的潜力。本研究通过制备抗菌静电纺丝纤维薄膜实现了生姜废弃物在食品包装中的高值化利用。
