Feather keratin (FK) is the waste of poultry industry and will cause environmental problems if it is disposed directly.
羽毛角蛋白是家禽加工企业产生的废弃物，直接丢弃不仅浪费了蛋白质资源同时也污染了环境。
Feather is rich in keratin, which contains a variety of amino acids, trace elements, vitamins and some unknown growth factors.
羽毛中含有丰富的角蛋白，角蛋白中含有多种氨基酸、微量元素、维生素以及一些未知生长因子。
The sources, composition and structures of keratin were introduced. The pattern, macroscopic structures and composition of hairs and feather were discussed too.
介绍了角蛋白的来源、分类、化学组成与分子结构，以及毛发的宏观形态、微观结构及组成。
Keratin, a kind of protein, exists widely in human and animal organs, including epidermis, hairs, wool, feather, hoof and horn. It is a natural compound material with good properties.
角蛋白是蛋白质的一种，广泛存在于人和动物的表皮、毛发以及动物的蹄、壳、爪、角中，是一类性能优良的天然生物复合材料。
Keratin, a kind of protein, exists widely in human and animal organs, including epidermis, hairs, wool, feather, hoof and horn. It is a natural compound material with good properties.
角蛋白是蛋白质的一种，广泛存在于人和动物的表皮、毛发以及动物的蹄、壳、爪、角中，是一类性能优良的天然生物复合材料。
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