羽毛角蛋白降解的研究进展

Research advance on degradation of keratin in feathers

羽毛角蛋白是一种硬性蛋白,在动物饲料、复合材料、食品包装和医药制品等领域展现出良好应用前景。但因羽毛角蛋白难溶解和降解的特殊性,一般方法很难获得可溶性角蛋白,酶法相对于传统物理和化学降解法具有反应条件温和、环境污染小和降解产物稳定等优点,是具有很高实用价值的羽毛降解途径。文中重点介绍角蛋白酶对羽毛的降解作用,并概述物理、化学方法的降解原理以及角蛋白的综合利用。

Feather keratin is rigid protein, it shows favorable application prospect in the field of composites preparetion, food packaging and medicine products. However the specificity of its insoluble and hard-degradation, the soluble proteins can＇t be obtained easily by the use of general methods. Compared with the traditional chemical and physical degradation methods of feather degradation, the enzymatic ap- proach has the advantages of mild reaction conditions,little environmental pollution and the stability degradation products, so it has a highly practical value. The paper mainly introduces the feather degra- dation by the use of keratinase, the degradation principle of physical and chemical methods and the comprehensive utilization of the keratin are also mentioned.