BIOMAT Research Group, Department of Chemical and Environmental Engineering, Engineering College of Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain.
BIOMAT Research Group, Department of Applied Mathematics, Engineering College of Gipuzkoa, Plaza de Europa 1, 20018 Donostia-San Sebastián, Spain.
Int J Biol Macromol. 2018 Jan;106:523-531. doi: 10.1016/j.ijbiomac.2017.08.043. Epub 2017 Aug 8.
In this work, the effect of hydrolyzed keratin on the properties of soy protein-based films was analyzed when different manufacture processes were employed. It is widely known that the processing method selected can affect the film properties as a function of the structure obtained during the film formation. Therefore, the assessment of hydrolyzed keratin/soy protein films processed by casting and compression moulding was carried out by means of the analysis of physicochemical, thermal, mechanical, optical and surface properties. It was observed that the incorporation of hydrolyzed keratin, obtained from a simpler, environmentally friendlier and more sustainable extraction method, resulted in the improvement of the thermal stability of the films, irrespective of the processing method employed. Moreover, the films processed by compression moulding showed enhanced tensile strength, which increased with the incorporation of hydrolyzed keratin due to the formation of disulfide bonds.
在这项工作中，分析了在采用不同制造工艺时，水解角蛋白对基于大豆蛋白的薄膜性能的影响。众所周知，选择的加工方法可以影响薄膜性能，这是由于在成膜过程中获得的结构所致。因此，通过分析物理化学、热学、力学、光学和表面性能，对铸膜和压缩模塑加工的水解角蛋白/大豆蛋白薄膜进行了评估。结果表明，无论采用何种加工方法，均能提高薄膜的热稳定性，且添加了通过更简单、更环保、更可持续的提取方法获得的水解角蛋白。此外，压缩模塑加工的薄膜显示出增强的拉伸强度，这是由于形成二硫键，随着水解角蛋白的加入而增加。
