Applied Protein Chemistry, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan.
Anim Sci J. 2014 Feb;85(2):180-5. doi: 10.1111/asj.12093. Epub 2013 Jul 19.
The properties of hydrolyzed feather keratin (HFK) were compared to those of hydrolyzed wool keratin (HWK) with the aim of developing better ways to utilize feather keratin waste. Amino acid analysis showed that HFK contained more hydrophobic amino acids did than HWK. Although gel permeation chromatography indicated that HFK and HWK had more low-molecular weight peptides than their intact sources, Fourier transform infrared spectroscopy indicated that both hydrolyzed keratins retained their original secondary structure. The physical properties of HFK were evaluated by treating HFK to human hair fibers. HFK treatment enhanced significantly the surface hydrophobicity and strength of fibers, and HFK was more permeable into hair fibers. These results suggest that HFK is suitable for industrial applications to improve fibers. In addition, HFK may be suitable for raw material of products requiring both flexibility and hydrophobicity, such as films and biodegradable plastics.
本研究旨在开发更好的利用羽毛角蛋白废物的方法，比较了水解羽毛角蛋白（HFK）和水解羊毛角蛋白（HWK）的性质。氨基酸分析表明，HFK 比 HWK 含有更多的疏水性氨基酸。虽然凝胶渗透色谱表明 HFK 和 HWK 比其完整来源含有更多的低分子量肽，但傅里叶变换红外光谱表明两种水解角蛋白都保留了其原始的二级结构。通过将 HFK 处理到人发纤维上来评估 HFK 的物理性质。HFK 处理显著增强了纤维的表面疏水性和强度，并且 HFK 更易渗透到头发纤维中。这些结果表明，HFK 适合于改善纤维的工业应用。此外，HFK 可能适用于需要柔韧性和疏水性的产品的原材料，如薄膜和可生物降解塑料。
