The Amino Acid Composition of Keratins
1958
Simmonds, D.H.
Two Merino wool samples having the same fiber diameter but differing widety in the number of crimps per inch of fiber length have been analyzed for amino acid com position. They have been compared with single samples of human hair and kid mohair to determine whether their composition could he related to their chemical and physical properties. Differences among the four fiber samples were detected in the case of the amino acids glycine, valine, leucine, cystine, and proline. However, only the proline content of the two Merino wools differed. According to the nature of their cortex and their chemical and physical properties, the four fiber samples could be arranged in the following order: human hair, high crimp wool, low crimp wool, and mohair [6, 14]. The results of the chemical analyses did not conflict with this arrangement.
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