A composition suitable for making films, wherein the composition containskeratin obtained from avian feathers and at least one OH containingplasticizer. Protein-based films containing at least one protein and at leastone OH containing plasticizer, wherein the protein is a protein whose PE valueis = 2.5 where PE=(S+T+Y)/C where PE is plasticizer efficiency and where S,T, Y, and C are the amino acids serine, threonine, tyrosine, and cysteine,respectively, in the protein. Preferably the protein is keratin obtained fromavian feathers.
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机译：适用于制膜的组合物，其中该组合物包含从禽羽毛中获得的角蛋白和至少一种OH增塑剂。基于蛋白质的薄膜，至少包含一种蛋白质和至少一种含OH的增塑剂，其中该蛋白质是其PE值的蛋白质> = 2.5，其中PE =（S + T + Y）/ C，其中PE为增塑剂效率，S为，T，Y和C是丝氨酸，苏氨酸，酪氨酸和半胱氨酸的氨基酸，分别在蛋白质中。优选地，蛋白质是从以下获得的角蛋白禽羽毛。
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