Bolu Abant İzzet Baysal University, Faculty of Agriculture, Poultry Science Department, Gölköy Campus, Bolu, Turkey.
Bolu Abant İzzet Baysal University, Faculty of Engineering, Food Engineering Department, Gölköy Campus, Bolu, Turkey.
Food Chem. 2024 Apr 16;438:137923. doi: 10.1016/j.foodchem.2023.137923. Epub 2023 Nov 3.
Chicken gelatin derived from poultry by-product was combined with caffeic acid (CA), rutin (RUT) and glycerol (GLY) to obtain biodegradable films. Optimum cross-linking conditions were investigated using Response Surface Methodology (RSM). The results showed that cross-linking led to lower L* value and higher b*, and the higher opacity values in the films. Water solubility (WS) decreased up to 50% after the incorporation of 1.25% CA compared to the commercial gelatin (cattle and pig based) films. Crosslinking improved the thermal stability and the tensile strength (TS) of films. Optimized cross-linking combination was determined as 0.96-1.56% CA, 0-1.25% RUT, and 29.5-30.5% GLY. Overall, this study demonstrated that crosslinking by CA and RUT can be used to improve the physical and barrier properties of gelatin films having excellent potential for the development of biodegradable films for packaging uses. These films may also result in an improvement and added value in poultry by-products.
以禽副产品为原料提取的明胶与咖啡酸(CA)、芦丁(RUT)和甘油(GLY)结合,得到可生物降解的薄膜。采用响应面法(RSM)研究了最佳交联条件。结果表明,交联导致薄膜的 L值降低,b值和不透明度值升高。与商业明胶(牛和猪源)薄膜相比,加入 1.25%CA 后,薄膜的水溶性(WS)降低了 50%。交联提高了薄膜的热稳定性和拉伸强度(TS)。确定的最佳交联组合为 0.96-1.56%CA、0-1.25%RUT 和 29.5-30.5%GLY。总的来说,这项研究表明,CA 和 RUT 的交联可以用来改善明胶薄膜的物理和阻隔性能,为包装用途的可生物降解薄膜的开发提供了良好的应用前景。这些薄膜也可能提高禽副产品的附加值。