| abstract |
A composition suitable for making films, where the composition contains keratin obtained from bird feathers, and at least one plasticizer containing OH. Protein-based films that contain at least one protein and at least one plasticizer that contains OH, where the protein is a protein whose PE value is> 2.5 where PE = (S + T + Y) / C, where PE is plasticizing efficiency, and where S, T, Y, and C are the amino acids of serine, threonine, tyrosine, and cysteine, respectively, in the protein. Preferably, the protein is keratin obtained from bird feathers. |